![]() ![]() |
![]() |
|
UFDC Home |
myUFDC Home | Help | ![]() |
Front Cover | |
Table of Contents | |
1991 report by the dean for... | |
1991 selected research accompl... | |
Changes in faculty | |
Institute of Food and Agricultural... | |
Agricultural and extension... | |
Agricultural engineering | |
Agronomy | |
Animal science | |
Dairy science | |
Entomology and nematology | |
Environmental horticulture | |
Food and resource economics | |
Food science and human nutriti... | |
4-H and other youth programs | |
Fruit crops | |
Home economics | |
Microbiology and cell science | |
Plant pathology | |
Poultry science | |
Soil science | |
Statistics | |
Vegetable crops | |
School of forest resources and... | |
Forestry | |
Fisheries and aquaculture | |
Wildlife and range sciences | |
College of Veterinary Medicine,... | |
AREC - Ft. Pierce | |
AREC - Hastings | |
AREC - Jay | |
AREC - Ona | |
Brooksville subtropical agricultural... | |
Central Florida REC - Apopka, Leesburg,... | |
Citrus REC - Lake Alfred | |
Everglades REC - Belle Glade | |
Florida medical entomology lab... | |
Ft. Lauderdale REC - Ft. Laude... | |
Gulf coast REC - Bradenton,... | |
North Florida REC - Quincy, Marianna,... | |
Southwest Florida REC - Immoka... | |
Tropical REC - Homestead | |
Director's financial report | |
Back Cover |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Full Citation | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
![]() ![]() ![]() ![]()
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Table of Contents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Front Cover
Front Cover Table of Contents Page i Page ii 1991 report by the dean for research Page 1 Page 2 1991 selected research accomplishments Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12 Page 13 Page 14 Page 15 Page 16 Page 17 Page 18 Page 19 Page 20 Changes in faculty Page 21 Page 22 Institute of Food and Agricultural Sciences Page 23 Page 24 Agricultural and extension education Page 25 Agricultural engineering Page 26 Page 27 Page 28 Page 29 Agronomy Page 30 Page 31 Page 32 Page 33 Animal science Page 34 Page 35 Page 36 Page 37 Dairy science Page 38 Page 39 Page 40 Entomology and nematology Page 41 Page 42 Page 43 Page 44 Page 45 Page 46 Environmental horticulture Page 47 Page 48 Page 49 Page 50 Food and resource economics Page 51 Page 52 Page 53 Page 54 Food science and human nutrition Page 55 Page 56 Page 57 Page 58 Page 59 4-H and other youth programs Page 60 Fruit crops Page 61 Page 62 Page 63 Home economics Page 64 Microbiology and cell science Page 65 Page 66 Page 67 Page 68 Plant pathology Page 69 Page 70 Page 71 Page 72 Poultry science Page 73 Page 74 Soil science Page 75 Page 76 Page 77 Page 78 Page 79 Statistics Page 80 Vegetable crops Page 81 Page 82 Page 83 Page 84 Page 85 School of forest resources and conservation Page 86 Forestry Page 87 Page 88 Page 89 Fisheries and aquaculture Page 90 Page 91 Wildlife and range sciences Page 92 Page 93 College of Veterinary Medicine, components of Page 94 Page 95 Page 96 Page 97 Page 98 AREC - Ft. Pierce Page 99 Page 100 AREC - Hastings Page 101 AREC - Jay Page 102 AREC - Ona Page 103 Page 104 Page 105 Brooksville subtropical agricultural research station Page 106 Central Florida REC - Apopka, Leesburg, Sanford Page 107 Page 108 Page 109 Page 110 Page 111 Citrus REC - Lake Alfred Page 112 Page 113 Page 114 Page 115 Page 116 Page 117 Page 118 Page 119 Page 120 Everglades REC - Belle Glade Page 121 Page 122 Page 123 Florida medical entomology lab - Vero Beach Page 124 Page 125 Page 126 Ft. Lauderdale REC - Ft. Lauderdale Page 127 Page 128 Page 129 Page 130 Page 131 Gulf coast REC - Bradenton, Dover Page 132 Page 133 Page 134 Page 135 Page 136 North Florida REC - Quincy, Marianna, Monticello Page 137 Page 138 Page 139 Page 140 Southwest Florida REC - Immokalee Page 141 Page 142 Tropical REC - Homestead Page 143 Page 144 Page 145 Page 146 Director's financial report Page 147 Back Cover Back Cover |
||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Full Text | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
.. nnual ' .fR each Report for the Florida Agricultural Experiment Station Contents i Contents REPORT BY THE DEAN FOR RESEARCH ............................................................................................................................ 1 SELECTED RESEARCH ACCOM PLISHM ENTS .......................................................................................................... ......... 3 CHANGES IN FACULTY .............................................................................. .......................................................................... 21 RESEARCH ADM INISTRATION .................................................................................................................. ............ ...........23 CAM PUS RESEARCH PROGRAM S ............................................................................................................. ............ ........... 23 Center for Cooperative Agricultural Programs FAM U ............................................................................................ 23 Center for Aquatic Plant Research................................................................................................................................... 23 Biomass Energy Systems......................................................................................................................................... .......... 23 Agricultural and Extension Education .............................................................................................................................25 Agricultural Engineering .................................................................................................................................................. 26 Agronomy ............................................................................ .......................................................................................30 Animal Science ....................................................................................................................................... .......................... 34 Dairy Science .......................................................................................................................................................38 Entomology and Nematology ............ ........................................................................................................ .....................41 Environmental Horticulture ............ ........................................................... ......................... .............. ............. 47 Food and Resource Economics .................. .......... .................................................................................. ............ 51 Food Science and Human Nutrition ...................................................................................................................... ..........55 4-H and Other Youth Programs ............................................................... .................. .......................................... .. 60 Fruit Crops ...................................................................... ...................... .................................. . ... 61 Home Economics ............... ......................... ........................................................................................ 64 M icrobiology and Cell Science................................. ................................................................................................... 65 Plant Pathology .................................................................................................................................................................69 Poultry Science ................................................................................................................................................................. 73 Soil Science ..................................... ........................................................................................................................... 75 Statistics ..................................... ................................................................................................................................ 80 Vegetable Crops ................................................................................................................................................. 81 School of Forest Resources and Conservation ....................................................... ..................................................86 Forestry ............................. .......................................................................................................................... .... ... 87 Fisheries and Aquaculture Sciences ..... .................................................................................................. ........... 90 W wildlife and Range Sciences .................................... ............... ..... ....................................... 92 College of Veterinary M medicine, Components of...................................................................................................... 94 AGRICULTURAL RESEARCH AND EDUCATION CENTERS ....................................................................................99 AREC Ft. Pierce ..................................................................................................................... .......................................99 AREC Hastings. ....................... ta .. ce........................................................................ 101 Library DEC 1 1991 EDITOR, loh T.Ne.n University of Fior d3 ii Contents AREC -Jay..................................................................................................................................................................... 102 AREC Ona ................................................................................................................................................................... 103 Brooksville Subtropical Agricultural Research Station ............................................................................................ 106 Central Florida REC Apopka, Leesburg, Sanford ..................................................................................................... 107 Citrus REC Lake Alfred .................................... .. ....................... 112 Everglades REC Belle Glade ........................................................................................................................................ 121 Florida M medical Entomology Lab Vero Beach ............................................................................................................. 124 Ft. Lauderdale REC ............................................................................................................................ ...................... 127 Gulf Coast REC-Bradenton, Dover......................................................................................................................... 132 North Florida REC-Quincy, M arianna and M onticello ....................................................................... .................... 137 Southwest Florida REC-mmokalee ........................................................................................................................ 141 Tropical REC Homestead.............................................................................. ........................................................ 143 DIRECTOR'S FINANCIAL REPORT .... ........................................................................................................................ 147 1991 Report by the Dean for Research 1 The decade of the '90s arrived with more challenges and opportunities than anticipated. The impact of the national economic recession began to be felt in Florida, including the University of Florida and the Institute of Food and Agricultural Sciences. The Florida Agricultural Experi- ment Station had to return 18 faculty positions and numerous support positions as a result of budget reductions during fiscal year 1990-91. In addition to the economic problems, several new and serious diseases began plaguing the Florida vegetable and citrus industry. These problems, in addition to the need for Florida agriculture to meet more stringent environmental standards and better management of limited resources, while competing for national and international markets, has provided a set of exciting opportunities for the administration and faculty in the Florida Agricultural Experiment Station. Several changes in chairs and directors have occurred during 1990 in the Florida Agricultural Experiment Station. Dr. George O'Connor from New Mexico State University was appointed Chair of the Soil Science Department, Dr. Glen Hembry from Louisiana State University was appointed Chair of the Animal Science Department, Dr. Roger Natzke assumed Interim Chair responsibilities for the Poultry Science Department in addition to his duties as Chair of the Dairy Science Department, Dr. Terril Nell was appointed Interim Chair of the Department of Environmental Horticulture, Dr. Jesse Gregory was appointed Interim Chair of the Department of Food Science and Human Nutrition, and Dr. Pat Reid was appointed Interim Director of the School of Forest Resources and Conservation. During the past fiscal year, the Department of Entomology and Nematology moved into new facilities which will be dedicated October 11, 1991. Construction was completed for the new laboratory facilities at the Everglades Research and Education Center, Belle Glade. The Florida Turfgrass Growers Association contributed $350,000 which was matched by the State of Florida for a total of $700,000 for the construction of an Envirotron to be built behind Fifield Hall during fiscal year 1991-92. The Strawberry Growers Association contributed $50,000 which was matched with $50,000 from the State of Florida for construction of a new research facility at the Research and Education Center in Dover. Environmental quality and water conservation continue to be of major concern to not only the general public, but the farming community as well. As a result, sustainable agriculture procedures are losing their "alternative" implications and becoming permanent everyday practices for Florida growers. For example, greater emphasis is being placed on strategies for controlling pests through cultural management and biological control than through pesticides alone. Also, greater emphasis is being placed on disease free transplant material and cleaning old plant material from the field at the completion of harvest. Applications of pesticides, water, fertilizer, etc., are being integrated into total management strategies for crop production rather than management through single variables. As we move into fiscal year 1991-92, the Florida Agricul- tural Experiment Station will continue to meet the specific research needs of the people of Florida. Whether in integrated pest management, forage production and utilization, waste management, wildlife and natural resource protection and management, forestry or the many other areas the Experiment Station is involved in, the Florida Agricultural Experiment Station will fulfill its mission to discover information which will benefit the agricultural industry and the urban population of Florida. Research completed by the Florida Agricultural Experi- ment Station, University of Florida/IFAS, is published in scientific journals, bulletins, circulars, books and confer- ence proceedings. Scientists at the Experiment Station also participate in field days, short courses, conferences and other public information programs to acquaint producers and consumers with recent research findings as well as new research directions. This Annual Report includes a brief summary of selected research programs, a list of faculty, publications, title of current research projects and a brief financial report. The Annual Report is not intended to be a detailed description of all research underway in the Florida Agricultural Experiment Station, but rather to summarize selected areas and to identify those faculty conducting that research. James M. Davidson Dean for Research and Director, Florida Agricultural Experiment Station University of Florida 1991 Selected Research Accomplishments 3 ANIMAL PRODUCTION AND PROTECTION Maternal-embryo communication A direct line between the maternal uterus and the devel- oping concepts may be established with the help of growth factors, proteins produced during early pregnancy by the maternal uterus. Recent work with pregnant sheep and pigs has demonstrated that a family of these proteins, termed "insulin-like growth factors," may initiate and amplify the production of biochemical signals by the concepts, alerting the mother that she is carrying a viable concepts. These biochemical signals trigger the produc- tion by the pregnant uterus of other proteins that nourish the concepts and allow it to grow and develop normally. Failure of the early pregnant uterus to synthesize these growth factors may be the cause of high incidence of embryo mortality in food-producing animals. Department of Animal Science R. C. M. Simmen, Associate Professor Improved Artificial Insemination through Ovarian Control of the Cow Major strides can be made in producing genetically superior calves through artificial insemination. However, artificial insemination is a labor intensive endeavor. A team of researchers with the Animal Science Department developed a new method of synchronizing behavioral estrus and ovulation in a herd of cattle, using two injec- tions of the hormone prostaglandin F2a at a 24-hour interval. When tested statewide, this method resulted in a 10% increase in cows pregnant to insemination at this synchronized estrus. The Animal Science team has found the corpus luteum of the ovary synthesizes and packages the hormone oxytocin in secretary granules that are released into the blood stream at a critical time in the cycle, leading to ovulation. Importantly, the scientists have now discovered two cell types of the corpus luteum that respond differently to the hormone prostaglandin F2a. This new information will aid in the development of new strategies for regulating ovulation, so that cows can be inseminated at a precise, pre-determined time. With an increase in conception rate to AI, more ranchers will utilize this tool to improve the genetics of their herd, positioning themselves to take advantage of new biotech- nology advances that will be offered to the cattle industry. Department of Animal Science Michael J. Fields, Professor Feeding Dairy Cattle More Effectively and Cheaply The Florida dairy industry uses more by-product feedstuffs than any other state. The major sources of protein now are soybean and cottonseed meal, yet dairymen are rapidly becoming interested in animal protein feedstuffs for balancing the level of amino acids reaching the small intestine. Feathermeal is one such animal protein by-product feedstuff that contains 80% protein. Because a large portion of the hydrolyzed feather meal(HFM) is produced in the South, it seems only reasonable that it would be competitively priced with other alternative feedstuffs. In an experiment at the Dairy Research Unit, three levels of HFM(0, 3, and 6%) were used in the dry matter of total mixed rations to study the effect of HFM on palatability and milk production. Thirty-six Holsteins were used in three, 28-day feeding periods to evaluate the value of the protein in feather meal. Feather meal was found to have no effect on dry matter intake and milk fat percent but had a slight negative effect on milk protein percent. Because of its high bypass protein content, feather meal may be used to partially replace other more expensive bypass protein supplements. Department of Dairy Science B. Harris, Jr., Professor Benefits of Feeding Colostrum to Newborn Calves and Piglets Colostrum, the first milk of lactation, has long been known to provide a source of immunity from disease to newly born calves, piglets, sheep, goats and horses. Recent work from IFAS Dairy Science researchers suggests an additional and important role for colostrum: specifically promoting growth and maturation of gastrointestinal tissues in the newborn calf and piglet. Defined proteins which stimulate cellular and tissue growth have been identified to occur at very high levels i, bovine and porcine colostrum, but at much lower levels in the corresponding milk at later lactation. In addition, feeding colostrum, as opposed to feeding mature milk during the first few days after birth, has a preferential stimulatory effect on neonatal gastrointestinal grow'h and maturation. This work suggests avenues to augment growth ut calves and piglets via the supplementation of colostrum and milk with growth-promoting proteins produced by biotechno- logical means. This may be particularly beneficial to growth-retarded neonates, more commonly known as "runts." Department of Dairy Science F. A. Simmen, Associate Professor 4 1991 Selected Research Accomplishments Amount of Feed Intake and Heat Stress Affect Physiology of Lactating Dairy Cattle A series of experiments in climatic chambers was done to quantify the effects of amount of feed intake and environ- mental heat stress on blood flow to different organ systems in lactating dairy cattle. Treatments were: heat stress (simulating a typical summer day in Florida), thermal comfort environment with feeding rate equal to the heat stress treatment and thermal comfort environment with ad libitwn feeding. It was found that heat stress and restricted feed intake resulted in reductions in milk yield, blood flow from the digestive tract and to the mammary gland compared with ad libitum feeding in the thermal comfort environment. The primary effects on productive and physiological responses were due directly to amount of feed intake and not heat stress, per se. The results emphasized the tremen- dous importance of protecting Florida cows from the heat- stressing environment by modifying the environment to increase feed intake, blood flow to the different organ systems and lactational performance. Department of Dairy Science D. K. Beede, Associate Professor Aquacultural Effluents The aquaculture industry is expanding rapidly in Florida; however, aquacultural effluents are currently regulated as industrial wastes that might deter industry development. A study was conducted to provide data for a basis for general aquacultural permits. Water quality data were collected from channel catfish, tilapia, crawfish, largemouth bass, bluegill-redear sunfish, and alligator ponds. The data collected are being used to develop general aquaculture permits. Department of Fisheries and Aquaculture J. V. Shireman, Professor Nutrition and the Immune Response in Poultry Cooperative research between the Poultry Science Depart- ment and the Veterinary College is studying the interrela- tionship between nutrition and the immune response in poultry. In one study, the influence of salt (NaCI) defi- ciency during the 7-week starter and growing phases in the broiler was investigated. Salt was omitted from the diet during weeks 1, 2,3 and 4. Antibody titers against a killed infectious bronchitis virus were lower in the salt- deficient groups. The decrease in body weight in the salt-deficient groups was a result of decreased feed intake. Broilers par- fed a salt-adequate diet had increased antibody titers. A salt deficiency was more detrimental in younger birds than in older birds. Department of Poultry Science R. D. Miles, Professor Development of a New Model for Evaluating Nutrient Requirements for Commercial Laying Hens The environmental temperature has been varied to obtain the desired daily intake of a corn-soybean meal diet. This allows the nutrient intake to be decreased until the desired nutrient is limiting. The nutrient requirement is then established at the amount required to produce one-gram of egg content. The requirement is established by multiplying this by the daily output of egg content. This method has been found to be as accurate as the broken line regression technique. Also the diet does not need to be deficient as in previous experiments since it is not essential to have a response to graded levels of the nutrient. The technique has been effective in studying the requirement for amino acids and is more similar to commercial conditions than previous models. Department of Poultry Science Robert H. Harms, Graduate Research Professor Improving Reproduction in Pigs Pig sperm, in contrast to that of many other mammals, deposited into the female pig do not surround the egg at fertilization. Instead, researchers have found that sperm are held back in a reservoir in the lower reaches of the Fallopian tubes. Only a small trickle is released to meet the egg. If scientists can learn how the gates of the sperm reservoir are controlled, they may be able to improve fertility of livestock. A system has been developed in culture dishes for growing pieces of the Fallopian tubes of pigs. Researchers have found that when boar sperm is added to these cultures, the sperm immediately stick to the inner wall of the tubes. They have also found that the cultures produce a mat of mucus that traps sperm as well. If these roadblocks to fertilization could be artificially controlled, semen from valuable males could be used to impregnate many more females. Department of Physiological Sciences S. S. Suarez, Assistant Professor Pheromones and "Tick Decoys" Ticks and tick-borne diseases are major constraints on livestock production in much of the world. The males of some species of Amblyomma ticks emit an aggregation- attachment pheromone, or odor, after a period of attach- ment and feeding on the host IFAS researchers in the Department of Infectious Diseases of the College of Veterinary Medicine have found that this pheromone is used in host selection and host location and can attract ticks from distances of up to 25' meters. The chemical 1991 Selected Research Accomplishments 5 composition of this pheromone has been determined, and synthetic pheromones prepared. These synthetic pheromones have been used to attract Amblyomma ticks to "tick decoys" also containing a small amount of acaricide (tick killer). Compared to current tick control methods, this tick decoy is much less expensive and has substantially less environmental impact. This is a novel, environmentally sound and cost-effective means of tick control. Department of Infectious Diseases R. A. Norval, Scientist Molasses for Cows and Calves Summer supplementation of cows and their calves with a molasses-urea (30% crude protein) mixture for 60 to 80 days before weaning in September improved both calf weaning weight and cow condition. Cows and their calves consumed 3.6 and 4.0 lbs of molasses-urea/cow-calf pair/ day in two separate trials. At weaning, calves offered molasses-urea supplement were 18 and 39 lbs. heavier, and cows were 11 and 37 lbs. heavier than calves and cows receiving no supplement in trials 1 and 2, respectively. With the current calf market ($90/cwt average for heifers and steers), net returns above supplement cost would be about $6 and $18 per calf weaned. Agricultural Research and Education Center Ona F. M. Pate, Professor ENGINEERING SCIENCES Second Crop Planting with a Spade Planter A revolving spade planter developed at the University of Florida can place seeds through previously used plastic mulch, re-using the plastic and more completely utilizing fertilizer left over from the previous crop. The revolving spade planter with a vacuum seed metering device has been extensively used by a Dade County, Florida vegetable grower to plant a second crop of beans after his tomato crop was destroyed by a freeze. This planter was able to plant through the plastic mulch and place the seeds within 8 inches of the row of tomato stakes, so the beans would climb on the same stakes and strings. The grower estimated that he was able to save nearly $100 per acre in planting costs with this machine. The grower's use of the machine provided design engineers data on machine refinements needed before the design can be released for manufacture. Department of Agricultural Engineering L. N. Shaw, Professor Microirrigation Evaluation Ten models of microirrigation spinners and spray emitters were evaluated over a 3.5-year period to determine the long-term maintenance characteristics of various designs. Emitters were located in a block of mature orange trees on single beds with a 9.1 meters between-row x 7.0 meters within-row spacing. The irrigation system used a surface water supply source with 50 mesh screen filtration. Emitters were all on the same irrigation zone and received water of the same quality at the same time and for the same duration. Fifty emitters of each model were arranged in groups of 10 in a randomized complete block design with 5 replications. All emitters were thoroughly examined twice per year. At the time of examination, the condition of all emitters was recorded, and any that were malfunctioning were replaced. Clogging was normally caused by algae, spiders, or ants. The clogging rate per inspection period averaged 19% and ranged from 2% to 38%, depending on emitter model. Designs which used enclosed caps to disperse water had the highest clogging rates. Emitters which had relatively large orifices and which provided a mechanism to plug the orifice when not in use had the lowest clogging rate. Agricultural Research and Education Center Fort Pierce B. J. Boman, Assistant Professor Pesticide Application Technology Four commonly used spray methods were evaluated as part of an on-going research project on pesticide application technology. These included 1) a low-volume ground sprayer (70 gpa); 2) a high-volume ground sprayer (550 gpa); 3) a helicopter (17 gpa); and 4) a fixed-wing aircraft (13 gpa). Off-target drift from these typical citrus spray applications was quantified. Drift deposits on the ground, as well as airborne drift were monitored at several locations downwind of spray application. All four types of spray equipment produced substantial amount of drift-prone droplets that could be detected as far as 640 ft. from the edge of the test grove. Drift deposit on the ground was maximum with the fixed-wing aircraft and was 2.4 times that of the low-volume ground sprayer. On the other hand, the low-volume ground sprayer produced maximum airborne drift which was 2.6 times that of the high-volume ground sprayer. As much as 22% of applied material was airborne at 50 ft. from the grove and de- creased to 2% at the 640 ft. location. However, maximum ground deposit at 50 feet was about 6% and sharply decreased at farther locations. More than 70% of drift originated from spraying the last two rows of the trees. Results revealed that of these types, there is probably no driftless spray equipment. Not spraying the last rows downwind may have the greatest impact on drift reduction. Drift control is of major importance in reducing quantity of pesticides, to improve efficiency of pest control, eliminate 6 1991 Selected Research Accomplishments contamination, and reduce costs and energy. In the future, improved design of pesticide delivery systems will be evaluated. Citrus Research and Education Center Lake Alfred M. Salyani, Assistant Professor FOOD SCIENCE AND NUTRITION Cooking Procedures for Lean Beef Recently, the amount of fat in beef is being reduced either by the removal of all outside fat or the use of grades with low fat such as U.S. Select. Since fat in meat aids tender- ness, juiciness and flavor, many consumers have asked if lean beef should be cooked with different procedures than the fatter Choice beef. Using typical cooking procedures including broiling, pan frying, roasting and braising, the tenderness, juiciness and flavor was compared among various cuts from both Choice and Select beef, with and without all outside fat removed. Except for the steak cuts, the taste of beef was not different between grades when cooked by similar methods. Steaks from Choice carcasses were more tender than those from Select carcasses. Thus, leaner beef (Select) can be cooked in a similar fashion as fatter beef (Choice). Additionally, it was found that marination prior to pan broiling or braising increased taste attributes, and that braising (moist cookery) reduced juiciness of the meat. As expected, the more well done the meat, the less tender and juicy it will be regard- less if it is lean or fat. Department of Animal Science R. L. West, Professor and D. D. Johnson, Associate Professor High Pressure Carbon Dioxide Applied to Food Processing Killing microorganisms that cause spoilage and illness and inactivating undesirable enzymes are first priorities in maintaining a safe and high quality food supply. Tradi- tionally, this has been accomplished by heating. However, high temperatures cause undesirable flavor, color and texture changes in some foods. Carbon dioxide was used as an alternative to heat. Supercritical carbon dioxide (SC C02) was applied to orange juice (OJ) to inactivate pectinesterase (an enzyme causing cloud loss) and to reduce the number of microor- ganisms by 99.9%. This was accomplished without changing the flavor of fresh squeezed OJ and without adding or removing anything from the juice. SC C02 can also be used in citrus processing in citrus oil fractionation, lemon oil extraction, and orange juice debittering. SC C02 was also applied to other foods important to Florida. With shrimp, for example, SC C02 was used to retard or eliminate the formation of black spots. The work demonstrated that many other foods such as mushrooms, apples, grapes, lobster, etc., could be processed to increase shelf-life and decrease quality deterioration by inactivating another enzyme, polyphenoloxidase. Cur- rendy, work is progressing towards removing saturated fats and cholesterol from ground beef by SC C02. Department of Food Science and Human Nutrition M. O. Balaban, Associate Professor Cholesterol Levels in Older Americans Blood lipid values were determined on 3 separate occasion values over a 3-month period in healthy 60- to 79-year-old subjects. Total cholesterol values and high density lipoprotein (HDL) cholesterol were significantly higher in females (n=24) than in the males (n=23). Low density lipoprotein cholesterol (LDL-C) was also higher in the females, but the difference did not reach statistical signifi- cance in this study. The average total cholesterol was 224 41 mg/dl in females and 200 40 in males. It was found that the blood lipid values in many individuals showed large variations (mean = 7% for total cholesterol and 12% for HDL cholesterol) from one observation period to the next. For instance, the total cholesterol value in one individual differed by 25% during the study, without a change in diet or exercise. In some individuals, however, the values were essentially identical at each sampling period. The National Cholesterol Education Program (NCEP) suggests that the total cholesterol value of 200 mg/dl be considered the "cut-point" for the upper limit of normal for adult Americans. It was concluded first that since the individuals in this study were all healthy with no history of heart disease, it seems likely that the NCEP guideline may not be applicable to older people. The stress and worry elderly people suffer when they learn that their "choles- terol number" is greater than 200 could be alleviated somewhat if the general public and scientific community realized that cholesterol levels normally do increase with age. Secondly, individual variation in values may be large;, therefore a single determination of blood cholesterol should not be used for classification into "normal" or "abnormal" levels. Two or more determinations over a period of several weeks or months should be used to determine the mean blood lipid values. Department of Food Science and Human Nutrition R. M. Shireman, Professor Concentration of Orange Juice Membranes (reverse osmosis) are being evaluated for (1) improving citrus processing technology and (2) recovery and concentration of orange juice aroma constituents. A 1991 Selected Research Accomplishments 7 scheme to utilize the cold pasteurization capability of the membrane separation technology has been developed, combining water removal capability of the existing citrus evaporator technology. This combined technology enables the production of a less heated juice concentrate, which when reconstituted yields a chilled juice without the undesirable "cooked" flavor. Aroma constituents are conserved by this technology because the process, unlike the present distillation process, requires no heat which could degrade sensitive flavor components. The method studied works as follows: Aromas are stripped from the juice in the evaporator and sent to the essence unit in the normal manner. Then, instead of being rectified and concentrated by distillation, the dilute, condensed stream is driven through a mem- brane under pressure. The membrane selectively prevents the passage of desirable flavor constituents, while allowing passage of water, the major component of the process stream. The product can be concentrated approximately 100-fold and is at least as good as the product made by distillation. Since no heat is required, the process also has the potential to use about 1/3 the amount of energy of distillation. Citrus Research and Education Center Lake Alfred R. J. Braddock and C. S. Chen, Professors Beta Carotene Levels in Citrus It has recently been found that new varieties of red grapefruit such as Star Ruby, Ray Ruby and Flame contain elevated amounts of beta carotene. Studies show that the color-producing compounds of these varieties contain more than twice the beta carotene of other varieties. Medical reports indicate that people consuming foods rich in beta carotene have a lower risk of developing certain types of cancer and heart disease. Red grapefruit are comparable dietary sources for this compound with green leafy veg- etables, the richest known sources. Citrus Research and Education Center Lake Alfred R. L. Rouseff, Professor FOREST SCIENCES A Partnership with Industry for Basic Research on Forest Productivity Department of Forestry, USDA-Forest Service and forest industry scientists have become partners at the University of Florida's Institute of Food and Agricultural Sciences in a search for fundamental biological mechanisms and processes which could significantly enhance the growth of trees and the productivity of Southern pine forests. Over the past 30 years, forest managers and scientists have significantly improved the productivity of Southern pinelands through applied research on silvicultural practices, genetic improvement and pest management. Increased forest productivity has reached a plateau, and new knowledge on fundamental biological mechanisms and processes is required to make additional gains. The partnership has initiated research in three integrated working groups: soil water and nutrient relations, carbon assimilation and allocation, and disease resistance. Re- search projects bridge aspects of biotechnology, physiology, mycorrhizae, genetics, disease resistance, soils and silvicul- ture. Laboratory, greenhouse and field experiments employ common genetic material showing good or poor perfor- mance for growth-related traits. Studies include: the role of mycorrhizae in genotypic growth responses; mechanisms controlling root initiation and exudates; the effects of nutrient levels on basic physiological processes; role of cytokinins in carbon partitioning, disease defense mechanisms their elicitors, associated genes and effects of changing environment; gene expression as related to tree age; and the role of canopy structure and dynamics on light use efficiency and biomass production. Given the projected demands for wood (and non-timber values) on the Southern pine forests during the next decade, the productivity of these woodlands must be increased. Department of Forestry R. A. Schmidt, Professor Changes in Rain Acidity Appear Unlikely in Florida Pine Forests Rain acidity has increased 13% from pH 4.87 in 1978 to pH 4.73 in 1989 in north-central Florida. The annual rate of change was not statistically significant. Runoff from a pine-cypress flatwoods watershed remained unchanged at pH 3.88, suggesting no effect of the change in rain acidity. These findings have been highlighted in the 1990 annual report of the National Atmospheric Deposition Program. The pine-cypress flatwoods watershed with sandy soils initially showed a slight gain of all nutrients coming in with rain and leaving with runoff, uncommon to water- sheds elsewhere because of the poor sandy soils. In later years the bases showed a net loss, probably because of aging of the forest. Operational annual fertilization of young pine plantations with protective buffer zones showed a delay of three years before some nutrient increases were detectable in stormflow. This suggested a very slow movement in shallow ground water rather than in surface runoff. Department of Forestry J. D. Johnson, Associate Professor 8 1991 Selected Research Accomplishments Effects of Global Change Evaluated for Pine Forests We have developed a slash pine simulation model that has been used to evaluate potential effects of climate change and increased atmospheric CO2. Simulations indicate that pine growth would decrease significantly with increased temperatures. Increased growth under elevated CO2 could balance the decline, however. The extreme nutrient limitation on typical slash pine sites could limit the response to CO2. Climate scenarios based on three different general circula- tion models (NCAR Community Climate Model, Goddard Institute of Space Studies, and United Kingdom Meteorological Office) have been developed in collabora- tion with scientists at Penn State University. An entirely new approach to simulating climate change, based on an analysis of synoptic climatology, is being investigated and applied to this problem. Department of Forestry H. L. Gholz, Professor INSECT AND WEED SCIENCES Management of the Sweetpotato Whitefly and Associated Disorders and Diseases on Vegetables The sweetpotato whitefly, Bemisia tabaci (Genn.), remains the most important pest of Florida's tomato industry. Plastic soil mulch sprayed with aluminum, yellow or orange paint resulted in fewer alighting adults of the sweetpotato whitefly, delayed increase in densities of whitefly immatures and delayed infection with geminivirus on tomato relative to white plastic mulch. Resistance to the sweetpotato whitefly in selected germplasm of wild tomato species appeared related to density and stickiness of glandular trichomes on leaf surfaces. Weeds and crops were surveyed for the second year for the sweetpotato whitefly and its hymenopterous parasitoids in west-central, southwest and south Florida. Whitefly immatures were sampled on 18 weed species and 12 crop species. The most abundant parasitoid species include Encasia nigricephala, E.tabacivora and Eretmocerous sp. A species of hymenopterous parasitoid from Puerto Rico was released at sites in Hillsborough, Manatee, Collier and Dade Counties. At least ten predator species were ob- served attacking the sweetpotato whitefly in tomato. Chrysoperla rufilabris, a lacewing, readily fed upon the immature lifestages in the laboratory and did not demon- strate a preference for aphids over the sweetpotato white- fly. At least 20 insecticides or insecticide combinations, including registered and experimental products, were evaluated in field trials on tomato for control of the sweetpotato whitefly. Certain petroleum oil products were evaluated in the field on tomato and found to delay the geminivirus transmitted by the sweetpotato whitefly. Gulf Coast Research and Education Center Bradenton D. J. Schuster, Professor and J. F. Price, Associate Professor Pasteuria penetrans Isolates Six different isolates of the Pasteuria penetrans group of obligate nematode- parasitic bacteria were isolated from five different species of phytoparasitic nematodes in bermudagrass fairways in southern Florida. One year greenhouse study suggests that one isolate from the sting nematode, Belonolaimus ongicaudatus, can suppress sting nematode densities. Several of the other isolates of this bacteria may also have promise for the management of phytoparasitic nematodes in perennial ecosystems such as lawns, golf courses, and landscapes. Fort Lauderdale Research and Education Center R. M. Giblin-Davis, Assistant Professor Control of Termites Affecting Structures A non-chemical control alternative was developed to prevent invasion by subterranean termites to structures. Laboratory and field tests indicated that soil barriers composed of particles in the 1.18-2.36 mm size effectively shielded penetration by both the native subterranean termites Reticuitermes spp. The results suggested that placement of such uniform size particle barriers prior to the construction of a house may provide a sufficient protection from soilborne subterranean termites. A slow-acting toxicant bait was applied in three field colonies of the Formosan subterranean termite located at the urban southeastern Florida. One year after bait application, foraging populations of three colonies that received baits were reduced 65-98%. The results demon- strated that a toxicant bait can be used to suppress foraging populations of subterranean termite colonies and hence reduce their damage potential. Fort Lauderdale Research and Education Center Nan-Yao Su, Associate Professor Control of Termites Attacking Live Citrus Trees With the expansion of citrus in Southwest Florida has come problems of tree-girdling subterranean termites, Reticulitemes flavipes (Kollar). The problem occurs primarily in areas recently cleared of pine trees and palmettos to prepare for planting new citrus groves. Scientists at the Southwest Florida Research and Educa- tion Center have also found a fungus rot, Phyophthora sp., in the soil, roots, and/or bark of the damaged trees. 1991 Selected Research Accomplishments 9 Results of a field trial in a commercial grove showed significant protection to young trees when the insecticide chlorpyrifos (Lorsban 4E or 15G) and the fungicide metalaxyl (Ridomil 2E) were used either alone or in combination in the irrigation water applied around the trees at the time of planting. Some tree toxicity was observed on Lorsban 4E treated trees while 15G appeared safe to the trees. The association of reduced termite activity around trees treated with Ridomil 2E only suggests an interesting relationship between the occurrence of Phytophthora and termite selection of living trees. Southwest Florida Research and Education Center - Immokalee R. E. Rouse, Associate Professor, P. A. Stansly and R. J. McGovern, Assistant Professors Malaria in South America Malaria in South America, which afflicts approximately 15 million persons annually, is transmitted by Anopheles from no less than five species complexes. Frequently, vector species can not be differentiated morphologically from non-vector species. Now, scientists from the University of Florida, in collaboration with USDA/ARS, have pin- pointed DNA fragments that serve as species-specific markers. Molecular taxonomy coupled with behavioral and ecological investigations should lead to refinements in Anopheles and, hence, malaria control. Florida Medical Entomology Laboratory Vero Beach L. P. Lounibos, Associate Professor St. Louis Encephalitis Outbreak The largest epidemic of St. Louis encephalitis virus ever recorded in Florida occurred during the summer and autumn of 1990. The 1990 epidemic was anticipated because of an ongoing field surveillance program developed and run by researchers at the Florida Medical Entomology Laboratory in Vero Beach. The FMEL surveillance program began in 1983, and through baseline data collected in Indian River County and other Florida counties since then, the epidemic threat of 1990 was recognized four weeks before the appearance of the first human case. This allowed us important time to meet with personnel from mosquito control, public health and the media and to alert the public of the threat of encephalitis transmission. The resulting publicity undoubt- edly reduced the number of human infections of SLE virus in Indian River County. Florida Medical Entomology Laboratory Veto Beach J. F. Day, Assistant Professor MICROBIAL SCIENCES Increasing the Antiviral Activity of Interferon Diseases such as cancer are regulated in part by biological response modifiers. The interferons (IFN) are biological response modifiers crucial to the body's defense. IFNs can turn on immune cells so that they make antibodies and fight foreign organisms. IFNs can also inhibit division of tumors or make cells resistant to viruses. A product of the bacterium Staphylococus aureus, staphy- lococcal enterotoxin A (SEA), is one of the most common causes of food poisoning. A significant number of patients suffer from malaise, nausea, vomiting and diarrhea. The immune system may play a role in these gastric effects of SEA. Our current effort is directed toward examination of the structural basis for the potent IFN-inducing properties of SEA. One approach to determining the structure of the SEA IFN-inducing site, is the use of synthetic peptides that correspond to various amino acid sequences of SEA located on the surface of the molecule. Such peptides could compete with SEA for its receptor on the cells and thus modulate its activity. We have identified two regions on the SEA molecule which allow it to bind to cells of the immune system. Synthetic peptides corresponding to a broad region in the N-terminus and a second region, amino acids 121-149, further in the molecule can block SEA binding. Since SEA needs to bind to have an effect, a peptide which blocks binding may block SEA's toxic effects. Conversely, alterations in amino acid sequence may facilitate binding of an SEA synthetic peptide, leading to increased produc- tion of IFN. This increased IFN could then help fight tumors or viruses. Since IFN has many functions, we also asked the question, what portion of the IFN molecule is responsible for its different cellular effects? We have found that the first 39 amino acids of the IFN molecule are involved in its antiviral activity. In fact, we can increase the ability of IFN to bind to its receptor, which is necessary for function, by substitution of particular amino acids; for example, substitution of phenylalanine for tyrosine at position 14 enhances binding 30-fold. At the same time, we are expressing the gene for IFN in a unique insect system that closely resembles human gene expression and allows for production of large quantities of our modified IFN molecules. Large amounts of IFN, possessing greater activity, may allow for better treatment of virally-induced cancers, and especially viral diseases such as AIDS. Department of Microbiology and Cell Science H. M. Johnson, Graduate Research Professor 10 1991 Selected Research Accomplishments Turning Trash into a Resource for a Cleaner Environment Environmentally safe methods for the disposal of garbage, growing dependence on petroleum, and a sagging economy continue to pose major dilemmas for Florida. Over 16 million tons of municipal solid waste are generated annually in Florida. Three-fourths of this material is delivered to landfills and consists of a combination of paper, yard trash, wood, and food residues all collectively called biomass. Biomass is composed of approximately 50% cellulose, 25% hemicellulose and 25% lignin. Much of the technology to convert cellulose to ethanol using enzymes and microorganisms has been available for over 20 years although the costs of such conversion has prohibited development. L. O. Ingram and his co-workers in the Department of Microbiology and Cell Science have genetically engineered a new bacterium which can now convert the sugars found in hemicellulose to ethanol increasing the overall yield of the process and eliminate a major waste stream. Residual lignin can be burned to provide all the energy needed for plant operation and ethanol purification. The new U.F. invention was assigned landmark patent number 5,000,000 by the Department of Commerce. Exclusive license to this U.F. technology has been purchased by BioEnergy International (Gainesville) for development and sublicense. Ethanol produced by this process from landfill waste is estimated to have a sales price well below a dollar per gallon. This recently patented invention utilizes landfill materials, pulp and paper waste, and agricultural residues to provide over 10% of Florida's automotive fuel needs as ethanol. In the Midwest, over 1 billion gallons of ethanol are produced annually from corn and blended with gasoline to provide cleaner fuels with reduced automotive emissions. This represents only 1% of the gasoline burned in the U.S. each year. Ethanol production from Florida waste materi- als could exceed the total current production from corn while cleaning the environment. Three-fold this amount of ethanol or other oxygenated fuel additives will be required to meet the 1992 goals set by the 1990 Clean Air Act. Over 20 million gallons of ethanol are blended to produce premium gasoline in Florida each year, and the ethanol is purchased from major Midwestern producers. The manufacturing of this ethanol and further expansion of ethanol production in Florida should provide a strong economic stimulus, retaining dollars in-state which would otherwise be lost to other states or countries and creating a new, model industry. Successful demonstration and implementation of this new technology should also reduce current pressure for oil exploration along our coasts. Virtually every state in the country could produce a portion of its automotive fuel needs from agricultural wastes and landfill materials. Department of Microbiology and Cell Science L. O. Ingram, Professor New Gene of Plant Pathogenesis Bacteria pathogenic for plants (e.g., Erwinia herbicola, Pseudomonas cepacia, and Xanthomonas capestris) possess two pathways for phenylalanine biosynthesis. The key enzyme of one pathway, prephenate dehydratase, is located in the cytoplasm where virtually all enzymes of biosynthe- sis are located. The key enzyme of the second pathway, cyclohexadienyl dehydratase, is located in the periplasm and is readily released by aromatic shock. The gene has been cloned, and sequencing revealed a signal sequence encoding a 25-residue peptide which directs transport of the newly synthesized enzyme to the periplasm. Phenylalanine produced in the periplasm may be dedicated to a role in fimbriae formation. Such fimbriae are essential for adhesion and pathogenesis. Department of Microbiology and Cell Science R. A. Jensen, Professor Bacterial Spot of Tomato This is one of the major disease problems in Florida. Detection of the pathogen, Xanthomonas campestris pv. vesicatoria, when present in low populations, is essential for maintaining disease- free plant material. Serological assays are one method to test for the presence of the bacterium. The development of monoclonal antibodies had made serological assays more accurate. Several monoclonal antibodies have been developed which react with strains of the pathogen but not with several other strains of Xanthomonas. Two monoclonal antibodies which have reaction profiles that correlate with the major geographical and physiological subdivisions of X. c. vesicatoria are currently being used for characterization of bacterial spot strains from around the world. Gulf Coast Research and Education Center, Bradenton J. B. Jones, Professor and G. C. Somodi, Assistant Scientist NATURAL RESOURCES Forecasting Regional Groundwater Levels using Geostatistical and Time Series Modeling Techniques As a part of their responsibility to evaluate and manage water resources, regional water management agencies must develop models capable of forecasting groundwater levels in space and time. Conventional models of regional groundwater movement require detailed and accurate 1991 Selected Research Accomplishments 11 measurements of aquifer parameters to produce reliable results. Unfortunately, regional estimates of aquifer parameters are often quite uncertain due to the sparseness, spatial variability, and unknown reliability of available measurements. As a result, groundwater flow models can also produce highly uncertain results. Stochastic modeling techniques, on the other hand, can be utilized to provide short-term forecasts of groundwater levels on a regional basis. The reliability of these forecasts may be assessed directly by examining model prediction variances. Model forecasts, together with forecast confidence intervals, can then be used to make more informed water resource management decisions. In this research project, classical time series modeling and geostatistical techniques were combined to develop a regional stochastic model capable of providing short-term forecasts of groundwater level (with forecast confidence intervals) throughout the St. Johns River Water Manage- ment District in Florida. Analysis of model predictions showed that 1- to 6-month lead forecasts could be pre- dicted within approximately 0.5 to 1.0 feet. In the next phase of this project we will use the regional stochastic model to develop a prototype optimal feedforward/feedback control algorithm designed to maintain target groundwater levels by manipulating local permitted groundwater pumpage during periods of rainfall shortage. Department of Agricultural Engineering W. D. Graham, Assistant Professor Florida LAKEWATCH Hundreds of volunteers venture out on their lakes every month to participate in the Florida LAKEWATCH Program. Trained volunteers get water samples, take measurements and collect data in order to establish a long- term data base on Florida's lakes. Without volunteer involvement, gathering these data would be much too costly. Florida has over 7,700 lakes greater than 10 acres in size and probably over 100,000 smaller water bodies. Detailed scientific information exists for fewer than 10% of them. Once obtained, data can be used to preserve and protect lakes, furnishing an early warning system for potentially harmful situations while still in the beginning stages. The Florida LAKEWATCH Program also provides citizens with educational materials to foster a better understanding of their lakes and provides a vehicle by which concerned citizens can work directly with professionals to develop scientifically sound management programs. Department of Fisheries and Aquaculture D. E. Canfield, Jr., Professor Ecology of Lake Okeechobee, Florida Recurrent media coverage of blue-green algal blooms and eutrophication in Lake Okeechobee manifests the intense public concern over the ecological well-being of this critical water resource. There is a clear need to better understand the effects that man-induced changes in the environment are having on the lake's biota (including plants, fish and birds) and water quality. With this knowledge effective management strategies can be developed and implemented. This concern precipitated a five-year grant award to the University of Florida to examine the ecology of the lake. Our laboratory's role in this project is to examine the impact of critical environmental factors, anthropogenic and natural, on the community of submerged algae and plants. These communities are the base of the food chain, and to a large extent dictate the overall environmental quality of this lake. Department of Fisheries and Aquaculture E. J. Phlips, Assistant Professor Genetic Conservation of Queen Conch The queen conch is a large, marine shellfish gastropodd) that has significant economic and cultural value in the Florida Keys and the Caribbean Sea area. A genetic study of queen conch (Strombus gigas) populations in the Florida Keys has revealed a dynamic yet relatively homogeneous population structure. IFAS researchers, with the support of the Florida Department of Natural Resources, used biochemical methods to estimate, over a four-year period, genetic variation among natural populations of queen conch throughout the Florida Keys. Populations throughout the Keys were found to be very similar genetically with random fluctuations in gene frequencies among years approximately equal to the variation among localities. Biologists and resource managers for the Florida Department of Natural Resources are using these genetic results to help rehabilitate the queen conch populations in the Florida Keys through development of nursery hatcheries and artificial propagation. Department of Fisheries and Aquaculture D. E. Campton, Assistant Professor Wildlife Diversity in Urban Landscapes Preserving native wildlife diversity in rapidly urbanizing areas is an extremely difficult challenge since urban development sprawling across the landscape modifies ecological functions of ecosystems. Alteration of natural habitats is the major threat to the continued existence of endangered species. The extinction process is complete when no more areas are suitable in size or quality to support self-sustaining populations. 12 1991 Selected Research Accomplishments Although some measures are available to protect remain- ing habitats for endangered species, mechanisms that ensure recovery of species are lacking. The best approach to preventing extinctions of species and providing the needs of growing human populations is to integrate wildlife needs into comprehensive land use plans. A research project conducted by the Department of Wildlife and Range Sciences is determining the most critical wildlife requirements in hardwood hammock forests. Preliminary data have shown that larger urban forest patches generally support more species. Tree density and the width of long, linear forests also are directly related to wildlife species diversity. Some species are less tolerant to development than others and can be used an indicators of habitat quality in urban forests. Specific data from these studies have provided the basis for land use decisions made by planners, developers, regulatory agencies, and property owners. Department of Wildlife and Range Sciences J. M. Schaefer, Assistant Professor To Feed or not Feed White-tailed Deer in Florida! The white-tailed deer is the country's No. 1 wildlife game species, accounting for more than a third of the total recreational hunting effort in the U.S. This effort trans- lates to over 100 million hunter-days for deer and an expenditure of $5 billion annually. Florida sportsmen are among the most avid of deer hunters, as they spend 70% of their total hunting effort, or about 2.5 million hunter-days in pursuit of the white-tailed deer each year. Accordingly, there has been an accelerated trend by Florida sportsmen to lease tracts of private land for deer hunting and to manage these tracts for either greater abundance or larger trophy animals. To this end, millions of dollars are spent in providing supplemental foods, usually corn or pelleted rations, to free-ranging deer. But are such supplemental feeding programs effective for these purposes? Research on a herd of radio-instrumented deer that were supplied high-protein pellets at rates of 1.5 and 3 tons per square mile per year ($20 and $40 cost per herd deer, respectively) in pine flatwoods habitat of north Florida revealed that supplemental feeding is not an effective management technique. Why? Despite the availability of the supplemental ration, the deer utilized the extra groceries very sparingly. Thus, managing a herd by the provision of supplemental feeding in Florida appears both biologically ineffective and cost- prohibitive. Department of Wildlife and Range Sciences R. F. Labisky, Professor Reducing Phosphorus Losses from Dairies in the Lake Okeechobee Watershed Lake Okeechobee is the 4th largest lake in the United States with a surface area of 1890 km2. Aquatic weed and algae problems are threatening the value of the lake for recreational uses such as fishing and hunting. Recent studies point to phosphorus as the nutrient responsible for degradation of water quality in the lake. Additional studies indicated that tributary watersheds with large numbers of dairy cattle are primary contributors to the phosphorus loading of the lake. The State of Florida has passed a "DAIRY RULE" which mandates dairy farmers in the watershed to reduce and eliminate, where possible, phosphate runoff from their farms. Over the years, considerable amounts of phosphorus from animal manures have accumulated in the soils around the dairies. High amounts of water-soluble phosphorus were found in the soils immediately surrounding the milking barns. Leaching of this phosphorus may be a significant source of phosphorus loss from the dairies. Perimeter ditches installed around the milking parlor/feeding area intercept this phosphorus. The runoff collected from the perimeter ditches, and the phosphorus it contains, is now being applied to crops via center pivot irrigation systems on many dairy farms. The crops are being feed to the cattle so the phosphorus is being recycled on the farm and losses from the farm are being reduced. Department of Soil Science D. A. Graetz, Professor Soil Reactions of Complex Pollutant Mixtures Properties of organic pollutants, such as solubility, soil retention and transport, are usually characterized in aqueous solutions and with a single organic pollutant. However, environmental contamination problems com- monly involve complex mixtures of chemicals, including organic solvents. The need to understand the environ- mental consequences associated with complex mixtures and to deal with these consequences involves developing theoretical approaches and laboratory data characterizing the soil reactions of complex mixtures. This work has application in the definition, prediction and remediation of soil and groundwater contamination problems. High concentrations of organic cosolvents decrease soil retention of organic pollutants at waste disposal/spill sites and transport the pollutants further than predicted from aqueous-based transport data. While this effect can magnify environmental problems, wise application of the principles involved can also assist in alleviating existing problems. For example, removal of contaminated soils from a disposal/spill site and extraction with solvent mixtures (so-called "solvent washing") is one remediation technique that is receiving considerable 1991 Selected Research Accomplishments 13 attention. The results of this work should be of direct use in selection of the appropriate solvent mixtures to extract organic contaminants of interest and in predicting mobility of contaminants from waste disposal or spill sites. Department of Soil Science P. S. C. Rao, Professor BMPs for Phosphorus Loading Reductions in the Everglades Agricultural Area Results of a University of Florida, Institute of Food and Agricultural Science study showed there are farming practices that could help to reduce phosphorus (P) loads and concentrations in agricultural drainage water. How- ever, it became apparent that the baseline P loading and concentration levels in the Everglades Agricultural Area (EAA) are naturally high due to the drainage of the organic soils. Nutrient balances showed that, in spite of high fertilization levels, P loads to the study sites in irrigation water and rainfall were generally higher than P loads leaving a farm in drainage water during 1989. In fact, the EAA could be a net assimilator of P. However, phosphorus concentrations and loads were extremely high during individual events for particular farming conditions, indicating the potential for reductions. It is apparent that controlling these major P loading periods will lead to enhanced water quality in the EAA. Potential BMPs focus on enhanced water and nutrient management. Some of the BMPs deal with short-term impacts while others focus more on the long-term. Generally, it is agreed that it will take some time for the effects of BMP implementation to be fully represented by drainage water P reductions. Everglades Research and Education Center, Belle Glade F. T. Izuno, Associate Professor Developing a Grass for Florida Range There are about 3.9 million acres of range in the 26 counties south of Ocala where two-thirds of Florida's beef cattle are found. Like range in western U.S., Florida range is important for cattle production. Because Florida is a peninsula with unique conditions, however, our range grasses are unique also. This means that Florida cattlemen could not introduce a new, more nutritious grass from some other region because that grass would not be adapted to our hot-wet summers, cool-dry winters or acid-infertile sandy soils. So, how can improvements be made in range grass quality? Try to improve some of Florida's own grasses. Creeping bluestem (called creeping because it spreads by underground stems or rhizomes) is a relative of little bluestem, a valuable range grass found elsewhere in the U.S. We collected about 200 types of creeping bluestem from the Georgia/Florida state line to the Everglades and evaluated them for digestibility and seed production at the Ona Research Center in Hardee County. Big differences were found in digestibility, which can be roughly thought of as the percentage of nutrients that cattle retain after eating the grass. For example, our plants ranged from 38 to 64% total digestible nutrients (TDN). In earlier research, we found that common creeping bluestem was about 45% TDN at a similar stage of matu- rity. Out of 200 plants, 37 were considered good seed producers with about 20 lb/A of seed. Although this doesn't sound like much, at 1.6 million seed/ lb, 1 lb/A of seed results in 38 seed/sq. ft. Since this original collection, we have taken our best seed-producing and highest quality plants and allowed them to cross pollinate. Seed of those crosses have been collected, planted, and new plants evaluated. After repeating this process we hope a new type can be developed which should have the combined good characteristics of the parents. Agricultural Research and Education Center Ona R. S. Kalmbacher, Professor Reclamation of Waste Lands from Phosphate Mining Clay railings, one of the waste products from Florida phosphate mining, occupy about 100,000 acres. Clays contain no phytotoxic materials, are high in plant nutri- ents, and average about 50% solids. Until recently these clays had little known value. Studies conducted over a 5-year period with grain, biomass, and forage crops indicated dry matter yields, forage and grain quality, and plant nutrient concentrations were equal or higher than most of the same crops grown on unmined soils. Alfalfa dry yields averaged over 7 tons/A on the clay tailings, and they generally do not grow on unmined central Florida soils because of periodic excessive moisture. Crops analyzed for radium 226 revealed that concentra- tions varied between crops and cultivars of the same crop. However, radium 226 was generally low in all crops. Studies indicate these waste lands are a fertile resource that can be used for grain, biomass, and forage production. Agricultural Research and Education Center Ona P. Mislevy, Professor PLANT PRODUCTION AND PROTECTION Predicting Peanut Growth and Yield Computer prediction of peanut growth and yield may become a management tool for peanut producers. A computer model named PNUTGRO has been developed by agronomists and agricultural engineers and is presently 14 1991 Selected Research Accomplishments being tested in producer fields in Florida to determine its utility for producers. Information, such as daily weather recorded by portable weather stations in grower fields, soils information, varietal traits, and grower management practices, are fed into the PNUTGRO model. The model then predicts the daily growth of the crop until final yield is predicted at maturity. Growers could benefit from model outputs: canopy cover, pod number, crop developmental stage, and pod maturity, in order to help manage the crop and schedule harvest timing. The predicted soil water balance could be used to help evaluate the short-term scheduling of irrigation or the long term risks and benefits from irrigation (over 20 to 50 years of historical weather). User-friendly hooks into the model are presently being developed to allow input of up-to-date scouting informa- tion on diseases, insects, and other pests, as well as proce- dures to estimate the amount of yield loss from those pest problems. Past experience indicates that peanut growers are attaining the yield potential predicted by PNUTGRO only when they follow good crop rotations. On-farm testing of PNUTGRO will continue for another year so researchers and extension specialists can evaluate how well the model works in producer fields and what improvements may be necessary. Department of Agronomy K. J. Boote, Professor and J. M. Bennet, Associate Professor Postproduction Longevity of Flowering Potted Plants The consumer often judges quality in flowering potted plants by how well the plant performs indoors. Varieties of poinsettia and chrysanthemum with increased interior longevity and less leaf and bud drop have now been identified. In addition, reducing the fertilizer level throughout the crop or stopping fertilizer during the final 2 - 3 weeks of production for chrysanthemum and poinsettia increased longevity by 7 14 days. Improved longevity in these crops has been related to flower respiration and, to a limited extent, with carbohy- drate levels. Cultural modification developed in the postproduction program at the University of Florida which lead to improvement in flowering potted plant longevity are being incorporated into production systems in the United States and Europe and used by retail buyers and interiorscapers to increase interior performance. Department of Environmental Horticulture T. A. Nell and J. E. Barrett, Professors Micropropagation Systems for Native Wetland and Water Garden Plant Production This research addresses the need to develop efficient micropropagation (tissue culture propagation) procedures to help Florida's aquatic plant nursery industry meet increased demand for quality disease-free native wetland and water garden plants. A complete micropropagation procedure has been developed for production of the native wetland plant Pontederia cordata. In 1990, 4,000 micropropagated Pontederia were outplanted in five urban pond sites in central Florida. In comparison to field-collected Pontederia, micropropagated plants exhibited better establishment and growth and were more highly branched. Several hardy and tropical water lily hybrids have been successfully established in sterile culture. For one tropical hybrid, Nymphaea 'Daubeniana', plantlet regeneration has also been achieved. This study represents the first report of the successful establishment of water lilies in sterile culture. These results indicate that micropropagation can be used to help Florida's aquatic plant growers meet increased market demand for native wetland and water garden plant species. Department of Environmental Horticulture M. E. Kane, Assistant Professor Summer Weed Control in Turf Previous postemergence control of the worst summer annual broadleaf weed, prostrate spurge (Euphorbia spp.), in fine textured bermudagrass required multiple application of the phenoxy herbicides which resulted in unacceptable turf injury and inconsistent control. Metsulfuronmethyl (Trade Names: DMC Weed Control or Escort) has demonstrated, through UF research, to provide complete control with one application without any significant turf injury. Further- more, the use rate of metsulfuron is less than 1 ounce/acre while the normal use-rate of the phenoxy herbicides is 2 to 4 gallons per acre. This provides bermudagrass managers with complete spurge control without multiple applications of higher use-rate herbicides. Department of Environmental Horticulture L. B. McCarty, Assistant Professor Improving Fertilization Efficiency of Container Woody Plants Increased concerns for ground and surface water contami- nation have resulted in the evaluation of current fertiliza- tion practices used in commercial nurseries. Efficient fertilization practices should result in maximum growth and utilization of applied fertilizer without sacrificing plant growth. One approach to improving fertilizer utilization is to ensure that optimal rates and application frequencies are used A series of studies were conducted in which container-grown Yaupon holly plants were fertilized once with a commonly used slow-release fertilizer or fertilized one, two, or four 1991 Selected Research Accomplishments 15 times weekly with minimal amounts of a solution fertilizer delivered to each container. At the end of the 26-week growing period, 2.5 grams of nitrogen had been applied per container for the slow- release and one solution fertilizer treatment; some plants received less nitrogen from solution fertilizer than applied with the slow-release fertilizer. Plants that received 1.5 or 2.5 grams of solution nitrogen per container had compa- rable growth to plants that received 2.5 grams of nitrogen per container from the slow release fertilizer. The number of applications per week did not make a difference but, the amount of fertilizer applied can be reduced 40% with out sacrificing growth. Approximately 30% of the applied nitrogen was either utilized by the plant or remained in the container medium for these treatments. Department of Environmental Horticulture T. H. Yeager, Associate Professor Making Sweeter Citrus Recent efforts have focused on plant genes that are modulated by tissue sugar status. Such responses were previously known only in bacteria and yeast, where they were considered an essential mechanism for adjusting metabolism relative to available substrates. In higher plants, this gene expression also has the potential to affect distribution of C resources among the many diverse cells and tissues. We have discovered two genes that are modulated by sugar levels. These encode an enzyme considered by many to be critical to import and utilization of sucrose. Sucrose synthase (despite its name) generally degrades sucrose in vivo and has long been associated with sucrose entry into developing structures. In citrus, we have found high activities in young fruit, and especially in vascular bundles adjacent to rapidly expand- ing juice sacs. We have recently characterized responses of sucrose synthase gene expression to sugars. Our current goals are to determine the physiological consequences of this up- and down-regulation, and to expand on associated aspects of sugar-modulated gene expression. Department of Fruit Crops K. E. Koch, Professor Breeding Peaches for Tree Ripe Flavor Traditional fresh market peaches are harvested immature in order to have extended shelf life for long distance shipping and marketing. A slow ripening gene exists in the processing peach which gives firmness to be harvested mature ripe while retaining firmness through the canning process. The processed peach varieties lack red skin color and flesh flavor, ripen in late summer, and are adapted to temperate climatic zones. We have initiated peach breeding to combine the slow ripening gene into the dessert-type peaches for fresh market. We have obtained selections having the slow ripening gene combined with outstanding flavor, attractive external color, early ripening and subtropical adaptation. Fruit size in these selections has been medium, but pros- pects are excellent for realizing the breeding goals. No major obstacles have been encountered and the first varieties are expected to be released in about 5 years. Department of Fruit Crops W. B. Sherman, Professor Gene Technology to Control Citrus Canker A pathogenicity gene, pthA, of Xanthomonas citri is required to elicit symptoms of Asiatic citrus canker disease. This gene has been cloned by genetic engineering, and when the canker gene is introduced into other Xanthomonas strains that are opportunistic on nursery- grown citrus, these recipient strains become able to induce Asiatic canker disease. Further characterization of canker gene pthA revealed that it also causes recipient Xanthomonas strains to be destroyed by cotton resistance genes. A genetic analysis of cotton resistance genes revealed that one of these genes is particularly able to destroy Xanthomonas strains carrying the canker gene pthA. Strains normally able to attack cotton are no longer able, if they carry pthA. This means that the cotton resistance gene, if cloned and placed in citrus, could provide long- lasting resistance to Asiatic citrus canker. Plant breeders have long searched for strong, "broad spectrum" resistance genes, but with little success. Never- theless, cotton breeders have been successful in developing "immune" cotton lines that have been effective against all races of Xanthomonas that attack cotton in North America. The molecular basis for this breeding success is now becoming clear by the use of genetic engineering. This provides a strong justification for the effort to clone the cotton resistance gene for purposes of transfer to citrus. Such cotton resistance genes, provided they are expressed properly in citrus, could provide the first non-chemical control for citrus canker disease. Applications of such broad-spectrum resistance genes in other plants against other Xanthomonas diseases seems likely. Department of Plant Pathology D. W. Gabriel, Associate Professor Taking the Shock Out of Vegetable Handling By Analyzing Packing Lines Electronically Vegetables and fruits experience a number of transfers during typical harvest, handling and packing operations, and each of these transfer points has potential to reduce quality by inflicting mechanical injury such as bruises, cuts, 16 1991 Selected Research Accomplishments punctures and abrasions. Although Florida produce packers and packing line equipment manufacturers are concerned about minimizing injury during handling, identifying transfer points which can cause these injuries has been difficult. Many types of packing lines can now be accurately analyzed to identify shocks which may cause mechanical injury. A new data logger, called the Instrumented Sphere, measures impacts experienced during handling operations. The "IS" is 3.5 inches in diameter and travels freely over the packing line with produce of similar size, recording shocks from each of the impacts that the produce experience. The IS was originally developed for analyzing apple handling systems at the USDA/ARS laboratory at Michi- gan State University. As part of a collaborative research project, we have used the IS to document impacts incurred during handling and packing in five pepper packinghouses, two mobile field pack units, and five tomato packing- houses. At several packinghouses, transfer points with potential to cause mechanical injury were modified resulting in over 50% reduction in impact levels. We have also found that a drop of only 2 inches is sufficient to bruise a pepper or tomato. Department of Vegetable Crops S. A. Sargent, Assistant Professor and J. K. Brecht, Associate Professor Male Sterility in Common Bean Cytoplasmically inherited male sterility is the basis of Fl hybrid seed production in many self-pollinating crops. Sterility is reversed in the Fl hybrids by appropriate nuclear fertility restoration genes. Using techniques of molecular genetics, we have verified three different mechanisms of fertility restoration in cytoplasmically male sterile Phaseolus vulgaris (common bean). One source is highly efficient and may have commercial applications. Cytoplasmically inherited male sterility and nuclear restoration of fertility is also an excellent model system for the study of interactions between nuclear and cytoplasmic genomes in higher plants. We have isolated and character- ized the gene responsible for cytoplasmic male sterility in the common bean and can now examine the effects of nuclear restoration genes on the cytoplasmic gene. Department of Vegetable Crops C. D. Chase, Assistant Professor Vegetable Fertilizer Management Increasing production costs and growing concerns over environmental pollution have led research into tools that enable vegetable producers to increase their fertilizer management skills. Plant analysis for nutrients such as nitrogen can provide the grower with information on which to base fertilizer application decisions. With the increase in use of drip irrigation for vegetables, growers now have a tool for effectively applying fertilizer to vegetable crops. Our research shows that analyzing plant petiole fresh sap for nitrate-nitrogen content can help guide growers in scheduling nitrogen fertilizer additions to vegetables. Work with several hand-held in-field testing kits has provided a nutrient response curve with critical levels of plant sap nitrate-nitrogen values. The plant sap test kits enable growers to use the plant as its own indica- tor of the need for additional nitrogen fertilizer. The tests can be conducted in the field in a matter of minutes, allowing growers to make timely adjustments in nitrogen additions to the crop. Growers using this tool have found that nitrogen applications can be reduced significantly compared to their traditional practices, yet obtain equal or better vegetable production. Making nitrogen applications more efficient is healthy for the profit margin and better for the environment. Department of Vegetable Crops G. J. Hochmuth, Associate Professor Commercial Development of an Insect Pathogenic Fungus The University of Florida and W. R. Grace have been actively pursuing the commercial development of the insect pathogenic fungus, Paecilomyces fumosoroseus 'Apopka'. The initial target pests include whiteflies, thrips and mites. W. R. Grace has developed a unique and very promising formulation. Because of the quality of this formulation, studies have progressed to small scale field trials in commercial greenhouses. All greenhouse studies to date have been successful in that high quality market- able plants were obtained. Although the results of some studies have been very good, it is difficult to attribute the success to the fungus. It appears that we have, in most of the Apopka area, a very active natural population of parasitic wasps that kill whiteflies. These parasites moved into our experimental plots and killed significant numbers of immature whiteflies. The combination of these wasps and the pathogenic fungus resulted in plants that were equal in quality or better than those to which pesticides were applied once or twice a week. Our last and most successful experiment was conducted in a commercial crop of hibiscus. These plants were grown for several weeks and then cut back to promote branching. These cuttings generally rooted and were used to start the next crop. Our fungal applications began shortly after rooted cuttings were placed in an open sided greenhouse. We applied fungus weekly for four weeks to half the plants, and the other half was treated 12 times with the standard pesticides used for the control of whiteflies. 1991 Selected Research Accomplishments 17 After the experiment, the only plants that could be sold were those treated with fungus. These results were carried over into the next crop. When these plants were cut back to promote branching, the cuttings from the pesticide treated plants were thrown away and only the fungus treated cuttings were used to start the next crop. Very high mortality of the remaining whiteflies on these cuttings was obtained during the rooting process in an environment with high relative humidity. Central Florida Research and Education Center Apopka L. S. Osborne, Associate Professor Tomato Breeding and Genetics Rough blossom scars (RBS) of fresh market tomatoes cause postharvest breakdown and are one of the main reasons for rejection of fruit in packinghouses. Yet until recent studies were carried out by Ph.D. student Jan Bartent, little was known about genetic and environmental factors affecting RBS. Genetic studies indicated scar size is controlled primarily by additive gene action. Both additive and specific combining ability were significant, although the former was more important than the latter. The best method to reduce RBS is to incorporate nipple-like blossom-end morphology genes. Allelism tests revealed 3 new genes which can be used in breeding work. Short term low temperature treatments induced RBS in developing flowers about 21 days before anthesis. This induction treatment should allow for further studies on the cause of RBS and provide a screening tool for breeding. Together these results provide a foundation of information which will allow more efficient breeding of smooth blossom scars as well as methodology to further study this phenomenon. Gulf Coast Research & Education Center Bradenton J. W. Scott, Professor Retractable Shade Retractable shade supports faster growth of schefflera (Brassaia actinophyla 'Amate') compared to growth under stationary shade or without shade. Without shade, growth is inhibited during the midday hours by excessively high light intensities (photoinhibition). Under stationary shade, growth is slower during the early morning and late after- noon hours by low light intensities. Retractable shade provides higher light intensities during the early morning and late afternoon hours, and provides shade, when needed, during midday hours. Plants grown under retractable shade were 89% taller after five months growth compared to plants grown without shade. Without shade, plants required 9 months to reach a stem height of 60 centimeters, and plants grown under stationary shade required 6 months. Using retractable shade, plants were 60 centimeters tall in only 5 months. A more uniform growth habit was produced using retractable shade compared to stationary shade or no shade. Fort Lauderdale Research and Education Center S. E. Svenson, Assistant Professor Lethal Yellowing Lethal yellowing (LY), is a fast moving, highly destructive disease of coconut palms known in the Northern Carib- bean region. The disease thought to be caused by mycoplasmalike organisms (MLOs) has killed millions of the native Tall ("Jamaica Tall") coconut palm, and as a result has virtually eliminated this variety from many localities including Southeast Florida. LY continues to spread into new areas, most recently the Yucatan peninsula of Mexico from where it has the potential to escape into the Pacific region. African LY-like diseases are also active in Ghana, Togo, Cameroon, Tanzania, Kenya and Mozambique. Collectively, these diseases pose the most important threat to global coconut production. MLOs implicated as the pathogens causing Caribbean and African LY have proved to be both elusive and unculturable. Thus, progress in the equally important areas of disease detection and diagnosis has been beyond the reach of available technology. This is now no longer true. DNA probes recently developed by scientists at the University of Florida, Fort Lauderdale Research and Education Center have demonstrated considerable potential for reliable, sensitive and specific detection of the Caribbean LY agent. Probes are currently being used to produce genetic fingerprints of the pathogen for identifica- tion purposes. Also, cooperative research is under way with scientists at Rothamstead Experimental Station, Harpenden, Herts, England to test the capability of probes to detect the African LY agent, with positive results. These findings represent a significant first step toward establishing the identity and relationships between these pathogens, and in doing so provide information of fundamental importance to epidemiologists, coconut breeders and those concerned with plant health and the international transfer of coconut genetic resources. Fort Lauderdale Research and Education Center N. A. Harrison, Assistant Professor and J. H. Tsai, Professor Summer Forage Legumes Cattlemen have begun to appreciate the productivity and persistence of 'Florida' Capon desmodium, a summer- growing, perennial grazing legume released several years ago for use in south Florida. Approximately 6,000 acres have been planted in the last two seasons with demand higher than seed supplies for this year. It has been shown 18 1991 Selected Research Accomplishments that, on a commercial scale, this legume in mixture with bahiagrass can be grazed severely or moderately without affecting individual plant persistence. Perennial, nut producing, forage peanuts are being evalu- ated in small field plots and under grazing. Of the 13 accessions presently under evaluation, most have persisted through the first winter and have produced voluntary plants. A significant step in their use is a new method developed for harvesting seeds. Highest seed yields have been estimated to be 800 to 900 pounds per acre. Agricultural Research and Education Center Fort Pierce A. E. Kretschmer, Jr., Professor Oxamyl Controls Corky Ringspot Disease of Potato Applications of high rates of the systemic insecticide oxamyl to potato foliage reduced incidence of corky ringspot disease. Corky ringspot is a destructive disease of potato tubers and can cause significant losses in North Florida's potato crop. It has been controlled with aldicarb which presently can not be used on this crop. The disease is caused by tobacco rattle virus transmitted to potato tubers by stubby root nematodes. Oxamyl appar- ently controls the disease by preventing transmission of the virus following translocation of the chemical to the roots. Observations made in 1991 substantiate similar findings from experiments completed in 1979-80. Agricultural Research and Education Center Hastings D. P. Weingarmer, Associate Professor Slow-release Fertilizer Reduces Potential for Ground Water Contamination Fertilizer blends containing controlled-release nitrogen appear to have the potential to become a routine component of citrus fertilizer programs. These materials dissolve very slowly, releasing nitrogen over several months' time. Their use can decrease application costs, increase nitrogen fertilizer efficiency, and decrease the potential for ground water contamination. A 2-year study with young 'Hamlin' orange trees showed that as few as four applications of a complete fertilizer containing a portion of its N in controlled-release form effected as much tree growth as 11 applications of a fertilizer containing all water-soluble N. The two-year-old trees grew large enough to set a significant amount of fruit for harvest during the third year after planting. In light of potential regulation of N fertilizer use, controlled-release sources appear to have a bright future. Southwest Florida Research & Education Center - Immokalee T. A. Obreza, Assistant Professor Chronic Diseases of Citrus The chronic diseases, citrus tristeza virus (CTV) and citrus blight, are the two most devastating diseases attacking citrus trees. CREC places these two problems at a high priority and devotes a major effort in solving them. Important achievements toward that goal were made in the past year. For example, a greenhouse procedure has been developed to enable testing of mild strains of citrus tristeza virus (CTV) for cross protection against decline induction strains on Sour orange rootstock within a period of less than a year, as compared to 3-5 years needed for current field evaluations. From evaluation of field plots, some mild isolates of CTV appear to be able to cross- protect against decline on Sour orange rootstock induced by severe strains of CTV. A significant research contribution was made in the past year with the development of gold labeled antibody technology to detect citrus tristeza virus (CTV) in ultrathin sections. This is the first time such methodology has been used successfully with CTV and will allow us to determine if mild and severe strains of CTV are able to infect the same phloem cells. This answer will have implications about the success or failure of mild strain CTV cross protection. A serological diagnostic test has been developed for citrus blight, enabling detection in presymptomatic, producing trees. A serological diagnostic test has been developed for the detection of the bacterium causing the "new" citrus decline disease in Brazil, citrus variegated chlorosis. A diagnostic test for citrus greening has been developed which is based on the chromatographic detection of a fluorescent compound present in greening infected plants. Citrus Research and Education Center Lake Alfred R. H. Brlansky, K. S. Derrick and R. F. Lee, Professors Revolutionary Seedless Watermelons Florida is the nation's largest producer of watermelon. Of all watermelon varieties, those that are seedless bring the highest prices and are most desired by consumers. How- ever, development of improved seedless watermelon varieties has been stifled due to difficulties associated with increasing the parental breeding lines, which can take ten years for a single new line. This problem has resulted in extremely high seed costs that reach $1,200/pound compared to $10-120/pound for seeded varieties. The net effect of this has been low production of seedless water- melon and irregular availability to consumers. A patented process developed by researchers at the Central Florida Research and Education Center Leesburg now allows such parental lines to be increased in six months. This allows improved varieties to be developed within a commercially feasible time frame, resulting in both lower seed costs and greater availability. 1991 Selected Research Accomplishments 19 Beyond their obvious quality attributes, seedless watermel- ons also have several other characteristics not shared by seeded varieties. Due to lack of seeds which produce hormones that cause breakdown, seedless watermelons have a better shelf life. Furthermore, lack of seeds cause the seedless vines to have a longer life-cycle, resulting in up to three times as much melon production when com- pared to seeded varieties, if common watermelon diseases are controlled. All diseases except virus, can be controlled with conventional methods. Virus is endemic in Florida and usually limits production. Although all methods of control have been ineffectual, a new genetic engineering technique shows promise for adding virus resistance genes to watermelon. Thus far, IFAS researchers have isolated genes for the three major viruses that affect production and have developed neces- sary cell culture-plant regeneration systems to place these genes into watermelon. Research under way is attempting to package the genes in a form suitable for insertion into watermelon cells. If this approach is successful, rapid integration of high- level virus resistance into new, improved seedless varieties via the patented process will revolutionize the watermelon industry since lower seed costs and higher fruit yields per acre will be possible. Seedless watermelons then will be less expensive to produce and will supplant seeded varieties at the marketplace. Central Florida Research and Education Center Leesburg D. J. Gray, Associate Professor Release of Marc I Variety Peanut 'Marc I' variety peanut was released in December 1990. This is the newest early-maturing peanut variety to be released for production. It matures 2 weeks earlier than 'Florunner', and studies have shown that it produces 12% higher pod yields than 'Florunner'. North Florida Research and Education Center Marianna D. W. Gorbet, Professor Phosphorus Fertilizer Efficiency On a phosphorus deficient acid soil in North Florida, lime application 2 months before applying diammonium phosphate increased yield of snap beans about 50% above that obtained where phosphorus was applied 2 months before lime. This suggests that lime should be applied before applying phosphorus in order to obtain maximum efficiency from diammonium phosphate. Monocalcium phosphate efficiency was not influenced by lime-phospho- rus application sequence. The lime-phosphorus applica- tion sequence is a "no cost" management practice that can improve phosphorus fertilizer efficiency without harming the environment. North Florida Research and Education Center Quincy F. M. Rhoads, Professor Exploring Transplant Shock Frequently after transplanting, trees shed a portion of their leaves and small branches die, leaving the trees with a sickly appearance for several years thereafter. These symptoms have typically been termed "transplant shock" but have rarely been investigated. In severe cases, the trees die. In an effort to improve the health, vitality and survival of transplanted trees, researchers at the CFREC-Sanford and the Department of Environmental Horticulture (Gainesville) are collaborating to diagnose the cause of transplant shock, with the goal of devising recommenda- tions to prevent or lessen its toll. This involves coordinat- ing studies of development and growth of roots and shoots with physiological aspects, such as short and long term water stress and seasonal changes in tree food reserves after transplanting. Early studies have linked transplant shock symptoms to limited fine root mass and insufficient irrigation frequen- cies. From these studies, a recommendation for irrigation frequencies and volumes has been formulated for sandy soils that prevents transplant shock. Further studies should extend this recommendation to other soil types and determine minimum water requirements. Central Florida Research and Education Center Sanford R. E. Beeson, Assistant Professor SOCIAL SCIENCES Agricultural Labor: Some Effects of Government Rules and Regulations Passage of the Immigration Reform and Control Act (IRCA) of 1986 brought forth a new set of rules and regulations regarding the employment of farm laborers, particularly alien workers. In contrast with minimum wage and unemployment insurance laws, IRCA applies to both small and large agricultural employees. A 1990 study of Prevailing Wages and Practices provided information to analyze the influence of IRCA on the Florida citrus industry. As expected, agricultural entrepre- neurs innovate their individual businesses to deal with the risk of sanctions imposed by laws and regulations. The net effect has been a shift in the management of routine seasonal labor jobs from growers to independent labor contractors. Moreover, these changes in rules and regula- tions have created entrepreneurial opportunities in labor contracting. Department of Food and Resource Economics R. D. Emerson and L. Polopolus, Professors 20 1991 Selected Research Accomplishments Economic Effectiveness of Commodity Promotion Specific analyses of consumer response to commodity promotion efforts in several sectors have been conducted. Results for the dairy and beef promotion efforts are reported here. The Beef Promotion and Research Act of 1985 authorized the U.S. beef industry to develop and implement national programs for enhancing consumer demand for beef. The programs are underwritten through an assessment of $1 per head of livestock each time a bovine live animal, regardless of age, is sold. Live weight prices are estimated to be 2.73 cents per pound greater as a direct result of the programs for the quarters 87:1-90:1. This gain represents a 4.5 percent increase in live weight prices. When comparing the price gains against the assumption that some programs would have existed without the national checkoff, the live weight beef revenue gains net of by-products are estimated to be either $3.612 billion or $1.493 billion, depending on the base from which the revenue gains are estimated. For the 69 month pre-Act period, December 1978-August 1984, fluid milk advertising expenditures of $90.4 million increased sales by 3.2 percent over what they (sales) would have been with no advertising. This represents an average increase of 43.3 pounds per advertising dollar for the period. For the 37-month post-Act period, September 1984-September 1987, additional national and regional fluid milk advertising expenditures of $19.5 million, generated as a result of the national program, increased sales by 2.5 percent over what they would have been without the added advertising expenditures. An analysis of the marginal effects of fluid milk advertising shows decreasing returns to advertising expenditures. At current advertising levels the marginal impact of another dollar of advertising is over 42 pounds of milk. If advertis- ing were increased by 25 percent over current levels then this rate of return would drop to about 35 pounds per dollar. Department of Food and Resource Economics R. W. Ward, Professor Changes in Faculty 21 Deaths We regret to report the death of the following faculty member. Douglas M. Janky, Poultry Science 01/17/91 Retirements Esam M. Ahmed, Food Science & Human Nutrition 12/27/90 Albert F. Cribbett, Office of the Vice President 06/30/91 Richard E. Bradley, Sr., Infectious Diseases 09/28/90 John F. Gerber, Fruit Crops 06/30/91 Monroe C. Lutrick, Jay Research and Education Center 12/31/90 John A. Mortensen, Central Florida Research and Education Center 02/28/91 Norman C. Schenck, Plant Pathology 12/31/90 Thomas J. Sheehan, Environmental Horticulture 06/30/91 Paul H. Smith, Microbiology and Cell Science 07/30/90 Jack O. Whiteside, Citrus Research and Education Center 12/31/90 Emil A. Wolf, Everglades Research and Education Center 08/31/90 Resignations Robert C. Abt, Forestry 12/31/90 Steven A. Ford, Food and Resource Economics 01/04/91 Arnett C. Mace, School of Forest Resources and Conservation 06/28/91 Donald J. Pitts, Southwest Research and Education Center 02/08/91 J. Walter Prevatt, Gulf Coast Research and Education Center 05/31/91 Charles A. Sanchez, Everglades Research and Education Center 06/28/91 Jimmy J. Street, Soil Science 08/17/90 New Appointments Ashok K. Alva, Assistant Professor, Citrus Research and Education Center 07/06/90 Lyn C. Branch, Assistant Professor, Wildlife and Range Sciences 10/26/90 Daniel O. Chellemi, Assistant Professor, North Florida Research and Education Center 02/15/91 Michael R. Evans, Assistant Professor, Gulf Coast Research and Education Center 07/01/90 F. Glenn Hembry, Chairperson and Professor, Animal Science 07/01/90 Heather J. McAuslane, Assistant Professor, Entomology and Nematology 09/01/90 George A. O'Connor, Chairperson and Professor, Soil Science 09/24/90 Sean F. O'Keefe, Assistant Professor, Food Science and Human Nutrition 07/01/90 Jane E. Polston, Assistant Professor, Gulf Coast Research and Education Center 04/01/90 Laura M. Rutter, Ona Research and Education Center 08/01/90 Brian T. Scully, Assistant Professor, Everglades Research and Education Center 02/15/91 Mark L. Tamplin, Associate Professor, Home Economics 10/15/90 Uma Lele, Graduate Research Professor, Food and Resource Economics 01/02/91 Institute of Food and Agricultural Sciences 23 THE UNIVERSITY OF FLORIDA INSTITUTE OF FOOD AND AGRICULTURAL SCIENCES 1 JOHN V. LOMBARDI President & Prof 1,2,3 GERALD L. ZACHARIAH Vice Pres for Agr & Nat Resources & Prof FLORIDA AGRICULTURAL EXPERIMENT STATION Office of the Dean for Research 1022 McCarty Hall / Gainesville, FL 32611 Telephone: 904-392-1784 Fax: 904-392-4965 4 JAMES M. DAVIDSON Dean For Research & Prof. 1,23 CAROL J. COOK Asst. Dir., IFAS Sponsored Programs 2 EVERETT R. EMINO Asst. Dean & Prof. 2,3 THOMAS E. FREEMAN Act. Asst. Dean & Prof. 4 JUDY F. KITE Coord., Admin. Services 2 JOHN T. NEILSON Asst. Dean & Prof. 2 ANDREW J. OSWALD Assoc. In, Mgr. Fla. Foundation Seed Producers Inc. 2 PAUL E. STERN Asst. In Law 2 NEAL P. THOMPSON Assoc. Dean & Prof. 2 ALAN J. WILKENING Coord., Computer Applications CENTER FOR COOPERATIVE AGRICULTURAL PROGRAMS FAMU 1,2 LAWRENCE CARTER Asst Dean & Assoc Prof, 1890 FAMU Programs CENTER FOR AQUATIC PLANT RESEARCH 7922 NW 71 Street / Gainesville, FL 32606-0300 Telephone: 904-392-9613 Fax: 904-392-3462 1,2,3 JOSEPH C. JOYCE Dir. & Prof. BIOMASS ENERGY SYSTEMS 2 WAYNE H. SMITH Dir & Prof Research Grants: Cato J. C. Saltwater Recreational Fishing Research & Extension Service Master Contract R/FDNR-3. Dept of Natural Resources. 08/15/90-06/15/92. $90,000 Cato J. C. Florida Sea Grant College Management (M/PM-10). U S Dept of Commerce. 04/01/89- 03/31/92. $147,090 Cato J. C. Publication of Scientific Diving: A General Code of Practice. United Nations. 10/01/90- 09/30/91. $11,490 Cato J. C. Saltwater Recreational Fishing Research & Extension Service Master Contract. Dept of Natural Resources. 08/15/90-06/15/92. $40,000 Clarke M. L. Short Term Aquaculture Consulting. U S Dept of Commerce. 01/31/91-04/30/91. $3,000 Davidson J. M. Cooperative Support Agreement. US Dept of Agriculture. 01/17/90-01/16/91. $93,154 Davidson J. M. Program for Implementation of Research Guidelines & Related Materials for ABRAC. U S Dept of Agriculture. 04/03/89-03/31/91. $60,000 Davidson J. M. Support of Agricultural Research of Mutual Interest. U S Dept of Agriculture. 10/01/86- 09/30/91. $629,442 Davidson J. M. Efforts to Provide Legal, Social, Environmental & Ethical Information for the Land- Grant. U S Dept of Agriculture. 10/01/88-09/30/92. $10,000 Davis D. F. CBAG Management Grant for Tropical & Subtropical Agriculture. U S Dept of Agriculture. 02/01/88-01/31/92. $57,500 Emino E. R. Florida Tomato Committee Research Projects. Fl Tomato Committee. 11/01/90-10/31/91. $133,000 Joyce J. C. To Assess Hydrilla Management Methodologies. Water Management Districts. 12/05/90-12/04/91. $50,312 Joyce J. C. New & Improved Methods for the Control of Aquatic Weeds. U. S. Dept of Agriculture. 10/01/88- 09/30/93. $160,522 Langeland K. A. Hydrilla Public Education Circular. Water Management Districts. 07/01/90-09/30/90. $3,000 Nair P. K. Technical Support for Agroforestry Promotion in Jamaica. Int Development Coop Agency. 12/01/90-10/24/93. $47,829 Popenoe H. L. Technical Support Program for Forage Research. Jamaica Agricultural Dev Found. 09/01/90-08/31/93. $151,943 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 24 Institute of Food and Agricultural Sciences Popenoe H. L. Zaire RAV II Design Phase. S. E. Consortium for Int Devel. 03/11/90-09/15/90. $4,940 Popenoe H. L. Memorandum of Understanding Program Support Grant USAID/UF. Int Development Coop Agency. 07/01/89-06/30/94. $150,401 Popenoe H. L. Design of the Phase II of the Agriculture Education Project. Int Development Coop Agency. 11/29/90-05/29/91. $135,000 Popenoe H. L. Technical Support Program for Forage Research. Jamaica Agricultural Dev Found. 09/01/90-08/31/93. $120,938 Popenoe H. L. Zaire/SECID Project Subcontract. S. E. Consortium for Int Devel. 01/15/91-01/31/94. $185,000 Popenoe H. L. Technical Support Program for Forage Research. Jamaica Agricultural Dev Found. 09/01/90-08/31/93. $50,765 Popenoe H. L. Zaire/SECID Project Subcontract. S. E. Consortium for Int Devel. 01/15/91-01/31/94. $45,075 Popenoe H. L. Contract with the Escuela Agricola Panamericana (Honduras). Escuela Agricola Panamericana. 06/01/80-06/30/92. $52,646 Popenoe H. L. Technical Support Programme of Forage Research. Jamaica Agricultural Dev Found. 11/01/89-10/31/93. $206,642 Seaman W. Environmental & Fishery Performance of Florida Artificial Reef Habitats: Statewide. Dept of Natural Resources. 04/12/91-09/30/92. $304,520 Smith W. H. Yard Trash Composting Process & Product Evaluation. Environmental Protection Agency. 10/01/90-01/01/92. $50,000 Smith W. H. Fundamental Bioprocess Research Program. Gas Research Institute. 07/01/86-06/30/91. $1,700,000 Smith W. H. Yard Trash Composting Demonstration Project in Alachua County. Dept of Environmental Regulation. 06/24/91-02/01/92. $50,000 Stevely J. M. Keys Sponge Survey Project. Miscellaneous Donors. 04/22/91-04/21/92. $3,200 Thompson N. P. Various Departments & Centers. Fl Foundation Seed Producers. 07/01/90-06/30/91. $200,000 Thompson N. P. Research in Support of Plant Variety Development. Fl Foundation Seed Producers. 03/01/91-06/30/92. $116,618 Thompson N. P. Help Make Available to the Farmers of Florida New & Improved Varieties of Crop. Fl Foundation Seed Producers. 07/01/88-06/30/92. $65,185 Woeste J. T. Royalty Refund for Control of Flowering of Tropical Ornamentals by Dr. Benny Tija. UF Research Foundation, Inc. 02/14/91-02/13/92. $1,309 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction Agricultural and Extension Education 25 AGRICULTURAL AND EXTENSION EDUCATION 305 Rolfs Hall / Gainesville, FL 32611 Telephone: 904-392-0502 Fax: 904-392-9633 1 CARL E. BEEMAN Chair & Prof. 1 LARRY R. ARRINGTON Assoc. Prof., & Acting Dist. Dir. 1 JIMMY G. CHEEK Prof., Teaching 1 MAXIE B. MCGHEE Prof., Teaching CRIS Projects: AEE02496 Strategies for Improving Supervised Occupa- tional Experience Programs (SOEP) in Florida J. G. Cheek C. E. Beeman M. B. McGhee L. R. Arrington AEE02610 Assessment of Vocational Agriculture Programs in Florida J. G. Cheek C. E. Beeman M. B. McGhee L. R. Arrington 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 26 Agricultural Engineering AGRICULTURAL ENGINEERING 9 Frazier Rogers Hall / Gainesville, FL 32611 Telephone: 904-392-1864 Fax: 904-392-4092 1,2,3 GERALD W. ISAACS Chair & Prof. 1,2 LARRY O. BAGNALL Prof., Ag. Proc. & Aquatic Weeds 1,2 CARL D. BAIRD Prof., Engery & Ag. Proc. 3 HOWARD W. BECK Asst. Prof., Computer Base Support Systems 2,3 WILLIAM J. BECKER Prof., Safety Spec. 1,2,3 ADELBERT B. BOTTCHER Prof., Water Res. & Non-point Pollution 1,2,3 RAY A. BUCKLIN Assoc. Prof., Farm Structures & Waste Magt. 1,2 KENNETH L. CAMPBELL Prof., Water Management 1,2 KHE V. CHAU Prof., Energy & Proc. 2 DAVID P. CHYNOWETH Assoc. Prof., Anaero- bic Digestion 2,3 RICHARD P. CROMWELL Assoc. Prof., Age. Mach. 1,2,3 JONATHAN F. EARLE Asst. Prof., Bioprocess Engineering 1,2 RICHARD C. FLUCK Prof., Energy & Systems, Resource Utilization 1 BYRON T. FRENCH Asst. Prof., Mech. Ag. 2,3 WENDY D. GRAHAM Asst. Prof., Groundwater Hydrologist 1,2,3 DOROTA Z. HAMAN Assoc. Prof., Water Mgt. 1,2 ROY C. HARRELL Assoc. Prof., Robotics 1,2 JAMES W. JONES Prof. Agr. Engin., Plant Modeling & Systems Analysis 1,2,3 PIERCE H. JONES Prof., Environmental 1,2 EDWARD P. LINCOLN Assoc. Prof., Algae Prod. 1,2 JOHN W. MISHOE Prof., Crop Modeling Instrumention Systems 1,2,3 ROGER A. NORDSTEDT Assoc. Prof., Waste Magt. 1,2 ALLEN R. OVERMAN Prof., Water Mgt. & Pollution Control 1,2 ROBERT M. PEART Grad. Res. Prof., Systems Analysis 1,2 LAWRANCE N. SHAW Prof., Ag. Mach. 2 SUN-FU SHIH Prof., Hydrology 1,2,3 ALLEN G. SMAJSTRLA Prof., Water Management 1,2 GLEN H. SMERAGE Asso. Prof., Biological & Ecological Systems 2,3 MICHAEL T. TALBOT Asst. Prof., Grain Drying & Energy 1,2 ARTHUR A. TEIXEIRA Prof., Food Engr. 2,3 DENNIS G. WATSON Asst. Prof., Software Development & Utilization 1,2,3 FEDRO S. ZAZUETA Assoc. Prof., Water Mgt. CRIS Projects: AGE02508 Improvement of Thermal Processes for Foods A. A. Teixeira AGE02522 Multiple Sensing and Algorithm Develop- ment for Automatic Grading of Fresh Citrus R. C. Harrell AGE02607 Automatic Control of Field Machine Func- tions for Increased Efficiency and Energy Conservation R. C. Harrell AGE02615 Hydrologic/Water Quality Modeling of Sediment and Chemical Movement K. L. Campbell A. B. Bottcher AGE02619 The Effects of On-farm Agricultural Practices in the Organic Soils of the EAA on Phospho- rus and Nitrogen Transport A. B. Bottcher F. T. Izuno AGE02643 Energy Analysis and Measurement of Agri- cultural Systems R. C. Fluck C. D. Baird AGE02646 Bioconversion of Organic Materials to Methane and Other Useful Products D. P. Chynoweth AGE02672 Harvesting, Storing and Feeding Ensiled Forages R. P. Cromwell AGE02688 Application of Integrated Agrotechnology for Crop Production and Environmental Quality Protection J. W. Jones R. W. Peart A. G. Smajstrla AGE02703 Simulation Models for Forage Production A. R. Overman 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Agricultural Engineering 27 AGE02723 Phosphorus Balances of Lake Okeechobee Drainage Basins R. C. Fluck C. M. Fonyo AGE02836 Computer Systems for Enhancing Agricul- tural Decision Making in the Caribbean J. W. Jones AGE02837 Effect of Land Treatment of Municipal Wastewater on Water Quality and Crop Production A. R. Overman AGE02845 Use of Controlled Eutrophication in Aquac- ulture and Animal Production E. P. Lincoln J. F. Earle AGE02855 Design of Structures for Optimum Agricul- tural Production R. A. Bucklin AGE02859 Yield Potential in Common Bean Phaseolus Vulgaris L. Genotypes as Related to Seed Size Response to Temperature J. W.Jones AGE02882 Remote Sensing Application to Abandoned Well Assessment in Florida S. F. Shih AGE02995 Systems for Providing and Controlling Interior Environments for Poultry and Livestock R. A. Bucklin P. H. Jones AGE03007 Meteorological Research and Agricultural Management Modeling for Southern Agriculture J. W. Mishoe S. F. Shih R. M. Peart J. W. Jones P. H. Jones AGE03045 Management of Animal Waste in Support of Sustainable Agriculture and Quality Water Resources R. A. Nordstedt J. F. Earle E. P. Lincoln AGE03076 Improvement of Thermal Processes for Foods A. A. Teixeira AGE03086 Microirrigation of Horticultural Crops in Humid Regions A. G. Smajstrla D. Z. Haman F. S. Zazueta AGE03087 Processing, Handling, Packaging and Storage of Fruits and Vegetables K. V. Chau C. D. Baird M. T. Talbot AGE03096 Lower St. Johns and Lake George Agriculture Inventory S. F. Shih Refereed Publications: R-00168 Bucklin, R. A.; Thompson, S. A. and Ross, I. J. Bin Wall Failure Caused by Eccentric Discharge of Free Flowing Grain. Journal of Structural Engineering 116:3175-3190. 1990 R-00690 Bucklin, R. A.; Thompson, S. A. and Ross, I. J. Flow Patterns in Model Grain Bins. American Society of Agricultural Engineers 34:577-585. 1991 R-00756 Bucklin, R. A.; Turner, L. W.; Beede, D. K.; Bray, D. R. and Hemken, R. W. Methods to Relieve Heat Stress for Dairy Cows in Hot, Humid Climates. Applied Engineering in Agriculture 7:241-247. 1991 R-00142 Curry, R. B.; Peart, R. M.; Jones, J. W.; Boote, K. J. and Allen, Jr., L. H. Response of Crop Yield to Predicted Changes in Climate and Atmospheric CO2 Using Simulation. American Society of Agricultural Engineers 33:1383-1390. 1990 R-00982 Gaffney, J. J. and Baird, C. D. Analysis of Various Factors Affecting the Costs of Forced- Air Cooling of Fruit and Vegetables. ASHRAE Journal 33:40-47. 1991 R-00708 Graham, W. D. and McLaughlin, D. B. A Stochastic Model of Solute Transport in Groundwater Application to the Borden, Ontario Tracer Test. Water Resources Research 27:1345-1359. 1991 R-00796 Harell, R. C.; Adsit, P. D.; Pool, T. A. and Hoffman, R. The Florida Robotic Grove-Lab. American Society of Agricultural Engineers 33:391-399. 1990 R-00840 Harrell, R. C.; Adsit, P. D.; Munilla, R. D. and Slaughter, D. C. Robotic Picking of Citrus. Robotica 8:269-278. 1990 R-00240 Hodges, A. W. and Shoup, W. D. Simulation of Gum Naval Stores Production Systems. Agricultural Systems 34:15-36. 1990 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 28 Agricultural Engineering R-01308 Jones, J. W.; Dayan, E.; Allen, L. H.; Van Keulen, H. and Challa, H. A Dynamic Tomato Growth and Yield Model (TOMGRO). American Society of Agricultural Engineers 34:663-672. 1991 R-00676 Jones, P.; Jones, J. W. and Hwang, Y. Simulation for Determining Greenhouse Temperature Setpoints. American Society of Agricultural Engineering 33:1722-1728. 1990 R-01467 Jordan, J. D. and Shih, S. F. Satellite and Aerial Photographic Techniques for Use in Artesian Well Assessment. International Conference on Computer Applications in Water Resources 2:891-998. 1991 R-00645 Lal, H.; Peart, R. M.; Jones, J. W. and Shoup, W. D. An Intelligent Information Manager for Knowledge-Based Systems. Applied Engineering in Agriculture 6:525-531. 1990 R-01436 Myhre, B. E. and Shih, S. F. Integration of Satellite Data with Geographic Information System in Water Resource Management. International Conference on Computer Applications in Water Resources 2:611-618. 1991 R-00470 Myhre, B. E. and Shih, S. F. Using Infrared Thermometry to Estimate Soil Water Content for a Sandy Soil. American Society of Agricultural Engineers 33:1479-1486. 1990 R-00793 Overman, A. R. and Wilkinson, S. R. A Model of Vertical and Seasonal Distribution of Coastal Bermudagrass. American Society of Agricultural Engineers 34:423-428. 1991 R-00326 Peck, M. W. and Chynoweth, D. P. On-Line Monitoring of the Methanogenic Fermentation by Measurement of Culture Fluorescence. Biotechnology Letters 12:17-22. 1990 R-00350 Petrell, R. J. and Bagnall, L. O. Some Physical Description of Mats of Waterhyacinths Needed for Harvester Design. Journal of Aquatic Plant Management 29:45-50. 1990 R-01132 Pool, T. A. and Harrell, R. C. An End-Effector for Robotic Removal of Citrus from the Tree. Applied Engineering in Agriculture 34:373-378. 1991 R-00283 Shih, S. F. Satellite Data and Geographic Information System for Rainfall Estimation. Journal of Irrigation and Drainage Engineering 116:319-331. 1990 R-00148 Shih, S. F. and Jordan, J. D. Remote Sensing Application in Well Monitoring. Journal of Irrigation and Drainage Engineering 116:497-507. 1990 R-01471 Still, D. A. and Shih, S. D. Satellite Data and Geographic Information System in Runoff Curve Numbers. International Conference on Computer Applications in Water Resources 2:1014-1021. 1991 R-01466 Tan, C. H. and Shih, S. F. The Potential for Application of Lightning Data Rainfall Estimation. International Conference on Computer Applications in Water Resources 2:999-1005. 1991 R-01465 Tan, Y. R. and Shih, S. F. Geographical Errors Involved in Data Entry of Geographic Information Systems. International Conference on Computer Applications in Water Resources 2:627-634. 1991 R-00403 Tan, Y. R. and Shih, S. F. GIG in Agricultural Landuse Study and Abandoned Well Assessment American Society of Agricultural Engineers 33:1147-1152. 1990 R-00445 Vellidis, 0.; Smajstrla, A. G. and Zazueta, F. S. Soil Water Infiltration, Redistribution, and Extraction Patterns of Drip-Irrigated Tomatoes Above a Shallow Water Table. American Society of Agricultural Engineering 33:1525- 153. 1990 R-00112 Vellidis, G.; Smajstrla, A. G. and Zazueta, F. S. Continuous Soil Water Potential Measurement with a Microcomputer-Based Data Acquisition System. Applied Engineering 6:733-738. 1991 R-00588 Vellidis, G.; Smajstrla, A. G. and Zazueta, F. S. Continuous Soil Water Potential Measurement with a Microcomputer-Based Data Aquisition System. Applied Engineering in Agriculture 6:733-738. 1990 R-01021 Xin, J.N. and Shih, S. F. NOAA Polar- Orbiting Satellite APT Data in Lake Evaporation Estimation. 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Agricultural Engineering 29 Journal of Irrigation and Drainage Engineering 117:547-557. 1991 R-01449 Xin, J. N. and Shih, S. F. Potential Application of NOAA Polar-Orbiting Satellite APT Data in Water Resources. International Conference on Computer Application in Water Resources 2:1006-1013. 1991 R-00436 Yang, J. C.; Chynoweth, D. P.; Williams, D. S. and Li, A. Isolation and Characterization of a Cellulolytic Bacterium, Clostridium aldrichii sp. nov. Inhabiting a Mesophilic Woody- Fermenting Anaerobic Digester. International Journal of Systematic Bacteriology 40:268-272. 1990 Non-Refereed Publications: N-00388 Beck, H. W.; Cilley, M. L. and Watson, D. G. A Document Analyzer and Database for Extracting and Storing Information from Tagged Documents. Proc. of the 38th International Technical Communication Conference 38:112-115. 1991 N-00311 Smajstrla, A. G. and Locascio, S. J. Irrigation Scheduling of Drip-Irrigated Tomato Using Tensiometers and Pan Evaporation. Florida State Horticultural Society 103:88-91. 1990 N-00338 Talbot, M. T. and Baird, C. D. Evaluating Commercial Forced-Air Precoolers. Florida State Horticultural Society 103:218-221. 1990 Research Grants: Campbell K. L. Biogeochemical Behavior & Transport of Phosphorus in the Lake Ockeechobee Basin. Water Management Districts. 08/14/87-04/30/92. $612,000 Chau K. V. Development of Time-Temperature-Humidity Relations for Fresh Fruit & Vegetable. Amer Soc of Heat Refrig & Air. 07/01/91-06/30/92. $42,030 Chynoweth D. P. Fluorescence Monitoring & Control of Methanogenic Fermentations. State University System. 12/27/90-12/26/91. $21,685 Earle J. F. Pilot Hotel/Motel Recycling Project. Central Fl Hotel/Motel Assoc. 07/01/90-04/30/91. $3,500 Graham W. D. Jackson County Karst Cropland. U. S. Dept of Agriculture. 03/15/91-06/30/92. $50,000 Haman D. Z. Water Use & Irrigation Scheduling of Blueberries. Water Management Districts. 10/12/90- 12/31/93. $26,125 Haman D. Z. Soil Amendments for Florida State of the Art Assessment. Water Management Districts. 06/14/91-09/30/91. $6,125 Isaacs G. W. Analysis of Insect Acoustical Communication & Insect Detection. U. S. Dept of Agriculture. 09/28/90-09/30/92. $40,000 Jones J. W. Computer Systems for Enhancing Agricultural Decision Making in the Caribbean. U. S. Dept of Agriculture. 07/01/89-06/30/91. $30,000 Jones J. W. Development & Testing of Soybean Peanut & Phaseolus Crop Models. University of Hawaii. 09/01/89-08/31/91. $110,433 Nordstedt R. A. Yard Trash Composting Demonstration Project. Browning-Ferris Indus of Fl. 03/15/91- 06/30/91. $15,000 Overman A. R. Wastewater Irrigation at Tallahassee. City of Tallahassee. 10/01/90-09/30/91. $30,000 Peart R. M. Knowledge-Based Expert Management of Citrus Production. United Nations. 01/01/91- 12/31/91. $31,200 Peart R. M. Climate Change & CO2 Increase on Irrigation Needs of Soybean Maize & Peanut in the Southeast. S. E. Regional Climate Center. 08/30/90- 07/31/91. $20,400 Shih S. F. Lower St. Johns & Lake George Agriculture Inventory. Water Management Districts. 12/28/90- 12/27/91. $50,000 Teixeira A. A. On-Line Evaluation of Process Deviation for Continuous Retorts. FMC Corporation. 10/01/90- 12/31/91. $19,200 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 30 Agronomy AGRONOMY 304 Newell Hall / Gainesville, FL 32611 Telephone: 904-392-1811 Fax: 904-392-1840 1,2,3 CHARLES E. DEAN Chair & Pi 23 JERRY M. BENNETT Prof., Wat 1,2 KENNETH J. BOOTE Prof., Plate 1,2 KENNETH L. BUHR Asst. Prof. 2,3 CARROL G. CHAMBLISS Assc of. :er Management nt Physiol. ,Plant Brdg. )c. Prof., Ext. Spec. Forage 2,3 DANIEL L. COLVIN Asst. Prof., Ext. Weed Sci. Spec. 1,2 JOHN R. EDWARDSON Prof., Cytogenet 1,2 EDWIN C. FRENCH III Assoc. Prof., Farming Systems 1,2 RAYMOND N. GALLAHER Prof. Multiple Cropping 1,2 WILLIAM T. HALLER Joint Prof., Aquatic Weeds 1,2 CLIFTON K. HIEBSCH Assoc. Prof., Sustainable Agriculture 4 KUELL HINSON Adj. Prof., Soybean Genet. & Brdg. 1,2 DAVID A. KNAUFT Prof., Plant Breeding 2,3 KENNETH A. LANGELAND Joint Assoc. Prof., Aquatic Weeds & Plant Mgr. 1,2 FERDINAND LEGRAND Assoc. Prof., Biomass Conversion 1,2 GALE F. LORENS Asst. Prof., Molecular-cellular Biologist 1,2 PAUL L. PFAHLER Prof., Genet. 1,2 GORDON M. PRINE Prof., Field Crop Ecol. 1,2 KENNETH H. QUESENBERRY Prof., Forage Genet. & Brdg. 1,2 STANLEY C. SCHANK Prof., Forage Genet & Brdg. 1,2 DONN G. SHILLING Assoc. Prof., Weed Science 1,2 REX L. SMITH Prof., Forage Genet. & Brdg. 1,2 LYNN E. SOLLENBERGER Assoc. Prof., Tropical Forage Mgt. 2 SHERLIE H. WEST Adj. Prof., Seed Tech & Physiol. 2,3 ELMO B. WHITTY Prof., Ext. Spec. Peanuts, Crop Mgt. Tobacco 1,2 MERRILL WILCOX Prof., Herbicide Biochem. 1,2 DAVID S. WOFFORD Asst. Prof., Gentics & Plant Breeding 1,2 E T. YORK JR Distinguished Serv. Prof., Plant Breeding CRIS Projects: AGR02459 Forage Plant Improvement from New Germplasm Under Varied Management O. C. Ruelke AGR02476 Breeding Improved Germplasm of Temperate Pasture and Forage Legumes K. H. Quesenberry D. S. Wofford AGR02507 Investigations of Inclusions Induced by Plant Viruses J. R. Edwardson R. G. Christie AGR02545 Genetic Improvement of Peanut (Arachis hypogaea L.) D. A. Knauft AGR02546 Genetic Improvement of Small Grains P. L. Pfahler AGR02547 Corn and Small Grain Genetics P. L. Pfahler AGR02563 Efficient Management of Multiple-Cropping, Minimum-Tillage Systems R. N. Gallaher AGR02568 Improvement of Pigeonpea (Cajanus cajan) and Other Pulses K. L. Buhr AGR02613 Molecular Manipulation of Genes R. L. Smith AGR02642 Recovery of Carotenoids and Electric Power from Leucaena Grown on Phosphate Ponds F. leGrand AGR02670 Evaluation, Selection and Management of Forage Grasses for Livestock Production in Florida L. E. Sollenberger AGR02672 Harvesting, Storing and Feeding Ensiled Forages C. G. Chambliss AGR02685 Growth Regulators to Improve Production Efficiency of Crops M. Wilcox 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Agronomy 31 AGR02688 Application of Integrated Agrotechnology for Crop Production and Environmental Quality Protection J. M. Bennett K. J. Boote C. K. Hiebsch AGR02696 Development of Perennial Tropical Pasture Legumes for Use in the Flatwoods of Peninsular Florida C. G. Chambliss AGR02703 Simulation Models for Forage Production C. G. Chambliss AGR02712 Forage Grass Cytogenetics and Breeding S. C. Schank D. S. Wofford AGR02725 Development of Methods for the Selection of Weed-Resistance Characteristics in Peanut D. G. Shilling D. A. Knauft AGR02761 Improved Production of Herbs and Spices E. C. French D. L. Colvin F. leGrand AGR02771 Soybean Breeding K. Hinson AGR02776 Plant Germplasm Introduction, Increase, Evaluation, Maintenance and Distribution G. M. Prine AGR02794 Forage Legume Viruses: Identification and Genetic Resistance for Improved Productivity D. S. Wofford J. R. Edwardson AGR02812 Ecological Responses of Crop Plants to the Environment in a Systems Management Approach C. K. Hiebsch AGR02824 Defoliation Responses and Quality-Related Characteristics of Pennisetum Forages L. E. Sollenberger AGR02840 Aquatic Herbicide Dissipation in Flowing Water W. T. Haller K. A. Langeland D. G. Shilling AGR02859 Yield Potential in Common Bean Phaseolus Vulgaris L. Genotypes as Related to Seed Size Response to Temperature K. J. Boote J. M. Bennett AGR02866 Carbon Dioxide and Climate Effects on Photosynthesis, Growth, and Yield of Rice and Other Crops K. J. Boote AGR02868 Field Crop Cultivar Testing D. A. Knauft E. B. Whitty AGR02873 Genetic Characterization and Improvement of Pennisetum for Biomass Production using Molecular and Classical Methods S. C. Schank R. L. Smith AGR03004 Temperature and Carbon Dioxide Effects on Development, Growth and Yield of Rice and Other Crops K. J. Boote AGR03005 Adapting the SOYGRO Crop Growth Model to Predict Oil and Protein Composition of Soybean K. J. Boote AGR03042 Weed Management in Commercial Turfgrass D. L. Colvin AGR03048 Establishment and Persistence of Perennial Arachis in Florida and Puerto Rico K. H. Quesenberry L. E. Sollenberger AGR03075 Environmental and Genotypic Control of Assimilate Allocation in Grain Crops K. J. Boote J. M. Bennett Refereed Publications: R-00058 Baker, J. T.; Allen, Jr., L. H.; Boote, K. J.; Jones, P. and Jones, J. W. Rice Photosynthesis and Evapotranspiration in Subambient, Ambient, and Superambient Carbon Dioxide Concentrations. Agronomy Journal 82:834-840. 1990 R-00813 Baltensperger, D. D.; Wofford, D. S. and Anderson, W. H. Registration of FL-ML White Clover Germplasm. Crop Science 31:853. 1991 R-00338 Bennett, J. M.; Sexton, P. J. and Boote, K. J. A Root Tube-Pegging Pan Technique for Determining the Effects of Soil Water in the Pegging and Rooting Zone on Peanut Pod Formation. Peanut Science 17:68-72. 1990 2 Research 3 Extension 4 Other UF or Cooperating Agency - 1 Resident Instruction 32 Agronomy R-00031 Campbell, W. J.; Allen, Jr., L. H. and Bowes, G. Response of Soybean Canopy Photosynthesis to CO2 Concentration, Light and Temperature. Journal of Experimental Botany 41:427-433. 1990 R-00370 Chaparro, C. J.; Sollenberger, L. E. and Linda, S. B. Grazing Management Effects on Aeschynomene Seed Production. Crop Science 31:197-201. 1991 R-00472 Fox, A. M.; Haller, W. T. and Shilling, D. G. Correlation of Fluridone and Dye Concentrations in Water Following Concurrent Application. Pesticide Science 31:25-36. 1991 R-00495 Homer, E. S. Registration of Maize Germplasms FS8A(S), FS8A(T), FS8B(S), and FS8B(T). Crop Science 30:964. 1990 R-00036 Kisakye, J. and Gardner, F. P. Productivity of Bean/Maize Intercrops as Influenced by Bean Type and Planting Date and Maize Density. Soil & Crop Science Society 49:139-146. 1990 R-00550 Knauft, D. A. and Gorbet, D. W. Agronomic Performance and Genetic Shifts of Seed Mixtures in Peanut. Euphytica 52:85-90. 1990 R-00593 Knauft, D. A.; Branch, W. D. and Gorbet, D. W. Genetic Studies with White Peanut Testa Color. Journal of Heredity 82:73-74. 1991 R-00785 Knauft, D. A.; Colvin, D. L. and Gorbet, D. W. Effect of Paraquat on Yield and Market Grade of Peanut (Arachis Hypogaea) Genotypes. Weed Technology 4:866-870. 1990 R-00705 McKellar, M. A.; Deren, C. W. and Quesenberry, K. H. Outcrossing in Aeschynomene americana. Crop Science 31:476-478. 1991 R-00805 McKently, A. H.; Moore, G. A. and Gardner, F. P. Regeneration of Peanut and Perennial Peanut from Cultured Leaf Tissue. Crop Science 31:833-837. 1991 R-00481 Miller, I. L.; Norden, A. J.; Knauft, D. A. and Gorbet, D. W. Susceptibility of Peanut to Leafspot Diseases as Influenced by Maturity and Fruit Yields. Peanut Science 17:52-58. 1990 R-00311 Rowland, L. J. and Chourey, P. S. In Situ Hybridization Analysis of Sucrose Synthase Expression in Developing Kernels of Maize. Maydica 35:373-382. 1990 R-00666 Rowland-Bamford, A. J.; Allen, Jr., L. H.; Baker, J. T. and Boote, K. J. Carbon Dioxide Effects on Carbohydrate Status and Partitioning in Rice. Journal of Experimental Botany 41:1601-1608. 1990 R-00434 Schank, S. C.; Boyd, F. T.; Smith, R. L.; Hodges, E. M.; West, S. H.; Kretschmer Jr., A. E.; Brolmann, J. B. and Moore, J. E. Registration of Transvala Digitgrass. Crop Science 30:1368-1369. 1990 R-00435 Schank, S. C.; Ruelke, O. C.; Ocumpaugh, W. R.; Moore, J. E. and Hall, D. W. Registration of Survenola Digitgrass. Crop Science 30:1369-1370. 1990 R-00473 Shilling, D. G.; Haller, W. T. and Mossier, M. A. Influence of Diluent Ions on Glyphsosate Activity on Torpedograss (Panicum repens L.). European Weed Research Society. p. 187-192. 1990 R-00093 Sinclair, T. R.; Bennett, J. M. and Muchow, R. C. Relative Sensitivity of Grain Yield and Biomass Accumulation to Drought in Field- Grown Maize. Crop Science 30:690-693. 1990 R-00035 Smith, R. L. and Chowdhury, M. K. Characterization of Pearl Millet Mitochondrial DNA Fragments Rearranged by Reversion from Cytoplasmic Male Sterility. Plant Molecular Biology 81:793-799. 1991 R-01370 Taylor,J. B. and Wilcox, M. Premier-A Promising and Environmentally Desirable Herbicide for Use in Ornamental Plantings. Florida State Horticultural Society 103:206-209. 1990 R-01350 Wilcox, M.; Raulerson, C.; Waas, II, W. T. and Pfahler, P. L. Practical Methods for Hybridization in the Syagrus Alliance. Florida State Horticultural Society 103:385-386. 1990 R-00604 Woodard, K. R. and Prine, G. M. Forage Yield and Nutritive Value of Elephantgrass as Affected by Harvest Frequency and Genotype. Agronomy Journal 83:541-546. 1991 R-00603 Woodard, K. R.; Prine, G. M. and Bates, D. B. Silage Characteristics of Elephantgrass as Affected by Harvest Frequency and Genotype. Agronomy Journal 83:547-551. 1991 R-00343 Woodard, K. R.; Prine, G. M.; Bates, D. B. and Chynoweth, D. P. Preserving Elephantgrass and Energycane Biomass as Silage for Energy. Biomass 36:253-259. 1990 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction Agronomy 33 Non-Refereed Publications: N-00375 LeGrand, F. Process for the Manufacture of Pectin from Sugarbeet Pulp. Sugary Azucar. p. 24-28. 1991 N-00193 Ortega-S, J. A.; Sollenberger, L. E. and Quesenberry, K. H. Grazing Managemenmt for Optimum Rhizoma Peanut Production. International Conference on Livestock in the Tropics. p. A1-A4. 1990 N-00194 Ortega-S, J. A.; Sollenberger, L. E. and Quesenberry, K. H. Persistence, Productivity, and Nutritive Value of Rhizoma Peanut under Different Grazing Managements. American Forage and Grassland Conference. p. 344-348. 1990 Research Grants: Boote K. J. Temperature & Carbon Dioxide Effects on Development Growth & Yield of Rice & Other Crops. U. S. Dept of Agriculture. 09/30/89-09/30/92. $62,300 Boote K. J. Carbon Dioxide & Climate Effects on Photosynthesis Growth & Yield of Rice & Other Crops. U. S. Dept of Agriculture. 12/01/88-09/30/91. $180,000 Dean C. E. Agronomy Royalty Returns. UF Div of Sponsored Research. 08/28/85-12/31/99. $28,160 Dean C. E. Research Projects in Florida Tobacco Production. Dept of Agricul & Consumer Ser. 03/22/90-06/30/92. $24,156 Dean C. E. Research Projects in Florida Peanut Production. Dept of Agricul & Consumer Ser. 04/08/86-06/30/92. $100,000 Dean C. E. Research Projects in Florida Soybean Production. Dept of Agricul & Consumer Ser. 05/13/82-06/30/92. $17,790 French E. C. Improved Field Production of Herbs & Spices. U. S. Dept of Agriculture. 07/01/88-06/30/91. $30,160 Haller W. T. Aquatic Plant Management Strategies in Flowing Waters. U. S. Army. 03/05/90-09/28/94. $119,600 Lorens G. F. Miscellaneous Donors Account. Miscellaneous Donors. 11/14/90-11/13/93. $27,000 Prine G. M. Miscellaneous Donors Account Ryegrass Variety Trials. Miscellaneous Donors. 09/01/90- 08/31/95. $500 Quesenberry K. H. Establishment & Persistence of Perennial Arachis in Florida & Puerto Rico. U. S. Dept of Agriculture. 07/01/90-06/30/91. $51,628 Quesenberry K. H. Exploration for Trifolium Germplasm in Bulgaria. U. S. Dept of Agriculture. 06/01/90- 09/30/90. $5,010 Shilling D. G. Management of Hydrilla Reproduction & Growth in Flowing Water Systems. Dept of Natural Resources. 06/29/90-12/01/90. $80,115 Smith R. L. A Molecular Study of Temperature Adaptation in Pasture Grasses. U. S. Dept of Agriculture. 05/24/91-05/12/92. $49,964 Sollenberger L. E. Defoliation Responses & Quality- Related Characteristics of Pennisetum Forages. U. S. Dept of Agriculture. 07/01/91-06/30/92. $33,000 Wilcox M. Gatorade Allocation to the Dept of Agronomy for Matching Funds for the Support. UF Div of Sponsored Research. 09/18/89-. $5,000 Wofford D. S. Evaluation of Trifolium Supp. Response to Cylindrocladium Root Rot. U. S. Dept of Agriculture. 01/16/91-09/30/91. $10,000 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction 34 Animal Science ANIMAL SCIENCE Animal Science Building 459 / Gainesville, FL 32611 Telephone: 904-392-1911 Fax: 904-392-7652 1,2,3 F. GLENN HEMBRY Chm. & Prof., Nutrition 1,2 CLARENCE B. AMMERMAN Prof., Animal Nutr. 1,2,3 RICHARD L. ASQUITH Assoc. Prof., Equine Health 1,2 DOUGLAS B. BATES Assoc. Prof., Anim. Nutr. Ruminant 1,2 FULLER W. BAZER Grad. Res. Prof., Anim. Physiol. 1,2 JOEL H. BRENDEMUHL Assoc. Prof., Swine Nutrition 1,2 GEORGE E. COMBS JR Prof., Anim. Nutr. Swine 1,2 JOSEPH H. CONRAD Prof., Anim. Nutr. Tropical Animal Science 1,2 MAURICIO A. ELZO Asst. Prof., Animal Breeding & Genetics 1,2 MICHAEL J. FIELDS Prof., Anim. Physiol. 1,2 DONALD D. HARGROVE Prof., Anim. Breeding 1,2 DWAIN D. JOHNSON Assoc. Prof., Meat Sci. 3 EDWARD L. JOHNSON Assoc. Prof., Ext. Equine Spec. 2,3 WILLIAM E. KUNKLE Assoc. Prof., Extension Beef Specialist 1,3 FRED W. LEAK Assoc. Prof., Extension Meats Specialist 1,3 SANDI LIEB Assoc. Prof., Anim. Nutr. Horse 1,2 TIMOTHY T. MARSHALL Asst. Prof., Beef Cattle 1,2 LEE R. MCDOWELL Prof. Animal Nutr., Tropi- cal Animal Science 1,2 JOHN E. MOORE Prof., Animal Nutr., Forage 1,2 TIMOTHY A. OLSON Assoc. Prof., Animal Breeding 1,2,3 EDGAR A. OTT Prof., Anim. Nutr., Horses 2,3 ROBERT S. SAND Assoc. Prof., Anim. Sci., Ext. Beef Spec. 1,2 DANIEL C. SHARP III Prof., Animal Physiology, Horse 1,2 ROSALIA C. SIMMEN Assoc. Prof., Biochemis- try & Molecular Biology 1,3 SAUNDRA H. TENBROECK Assoc. Prof., Ext. Livestock Spec. 1,2 DONALD L. WAKEMAN Prof., Anim. Sci. 2,3 WILLIAM R. WALKER Assoc. Prof., Extension Swine Specialist 1,2 ROGER L. WEST Prof., Meat Sci. 2 CALVIN E. WHITE Assoc. Prof., Swine Nutrition CRIS Projects: ANS02343 Relationship Between Frame Size and Level of Upgrading with Production Efficiency in Brahman Cattle T. A. Olson D. D. Hargrove ANS02344 Evaluation of Reproductive Characteristics in Brahman Bulls and their Relationship to Production Traits in Brahman Cattle T. A. Olson D. D. Hargrove ANS02558 Conceptus-Endometrial Interactions in Early Pregnancy F. W. Bazer ANS02560 Proteolytic Activity of Bacteroides Ruminicola GA33 D. B. Bates ANS02596 Porcine Conceptus-Endometrial Interactions Affecting Embryonic Survival F. W. Bazer ANS02620 Alternative Crossbreeding Systems to Produce Cattle Adapted to Florida T. A. Olson D. D. Hargrove M. A. Elzo ANS02621 Improvement of Beef Cattle in Multibreed Populations M. A. Elzo T. A. Olson D. D. Hargrove ANS02645 Near Infrared Reflectance Spectroscopy Analysis of Florida Feeds J. E. Moore ANS02646 Bioconversion of Organic Materials to Methane and Other Useful Products J. E. Moore S. L. Russo ANS02672 Harvesting, Storing and Feeding Ensiled Forages W. E. Kunkle D. B. Bates ANS02749 Managing the Plant-Animal Interface in Tropical Legume-Grass Pastures J. E. Moore ANS02767 Determination of Protein Interactions Responsible for Processed Meat Quality D. D. Johnson R. L. West 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Animal Science 35 ANS02777 Nutrition and Management of Swine for Increased Reproductive Efficiency G. E. Combs ANS02780 Bovine Relaxin: A Placental Source and Effects of Prostaglandin and Steriod Metabolism M. J. Fields ANS02805 The Genetics of Body Composition in Beef Cattle T. A. Olson D. D. Hargrove D. D. Johnson R. L. West ANS02811 The Influences of Nutrition and Exercise on Skeletal Development of Growing Horses E. A. Ott R. L. Asquith ANS02815 Use of Sugarcane Molasses Mixtures in Cow- Calf Production Systems W. E. Kunkle ANS02824 Defoliation Responses and Quality-Related Characteristics of Pennisetum Forages J. E. Moore ANS02826 Mineral and Vitamin Nutrition for Tropical Grazing Ruminants L. R. McDowell ANS02865 Porcine Conceptus-endometrial Interactions Affecting Embryonic Survival F. W. Bazer ANS02991 Porcine IgG Receptors in Developing and Lactating Mammary Gland R. C. Simmen ANS02999 Evaluation of and Maximizing the Use of Alternative Energy Feed Sources for Swine Diets G. E. Combs C. E. White J. H. Brendemuhl W. R. Walker ANS03014 Reproductive and Growth Parameters of Bos indicus Cattle T. A. Olson ANS03040 Reproductive Performance and Preweaning Survival in Swine by Improved Nutrition and Management G. E. Combs J. H. Brendemuhl C. E. White ANS03052 Background and Finishing Florida Feeder Calves W. E. Kunkle D. D. Johnson ANS03078 Physiological and Ecological Relationships Affecting Biting Flies and Ticks on Pastured Cattle R. S. Sand ANS03090 Vernal Transition as a Model for Folliculogenesis and Ovulation D. C. Sharp Refereed Publications: R-00134 Ashworth, C. J.; Fliss, M. F. and Bazer, F. W. Evidence for Steroid Control of a Putative Angiogenic Factor in the Porcine Uterus. Journal of Endocrinology 125:15-19. 1990 R-00760 Bazer, F. W.; Simmen, R. C. and Simmen, F. A. Comparative Aspects of Conceptus Signals for Maternal Recognition of Pregnancy. Proceedings of the New York Academy of Sciences 622:202-211. 1991 R-00279 Bazer, F. W.; Thatcher, W. W.; Martinat-Botte, F.; Terqui, M. and Lacroix, M. C. Conceptus- Endometrial Interactions Affecting Composition of Uterine Flushings from Large White and Prolific Chinese Meishan Gilts. Journal of Reproduction, Fertility and Development 2:51-60. 1990 R-01197 Dubois, D. H. and Bazer, F. W. Effect of Porcine Conceptus Secretory Proteins on In Vitro Secretion of Prostaglandins F2a and -E2 from Luminal and Myometrial Surfaces of Endometrium ....Endometrium from Cyclic and Psedopregnant Gilts. Prostaglandins 41:283-301. 1991 R-01103 Espinoza, J. E.; McDowell, L. R.; Wilkinson, N. S.; Conrad, J. H. and Martin, F. G. Effect of Dietary Phosphorus Level on Performance and Mineral Status of Grazing Cattle in a Warm Climate Region of Central Florida. Livestock Research for Rural Development 3:28-40. 1991 R-01101 Espinoza, J. E.; McDowell, L. R.; Wilkinson, N. S.; Conrad, J. H. and Martin, F. G. Forage and Soil Mineral Concentrations Over a Three- Year Period in a Warm Climate Region of Central Florida. I. Macrominerals. Livestock Research for Rural Development 3:11-19. 1991 2 Research 3 Extension 4 Other UF or Cooperating Agency - -- 1 Resident Instruction 36 Animal Science R-01100 Espinoza, J. E.; McDowell, L. R.; Wilkinson, N. S.; Conrad, J. H. and Martin, F. G. Forage and Soil Mineral Concentrations Over a Three- Year Period in a Warm Climate Region of Central Florida. II. Trace Minerals. Livestock Research for Rural Development 3:20-27. 1991 R-00750 Fuchs, A. R.; Behrens, O.; Helmer, H.; Lin, L.; Barros, C. M. and Fields, M. J. Oxytocin and Vasopressin Binding to Cow Endometrium and Myometrium During the Estrous Cycle and Early Pregnancy. Endocrinology 127:629-636. 1990 R-01093 Fuchs, A. R.; Behrens, O.; Helmer, H.; Vangsted, A.; Ivanisevic, M.; Grifo, J.; Barros, C. and Fields, M. J. Oxytocin and Vasopressin Binding Sites in Human and Bovine Ovaries. American Journal of Obstetrics and Gynecology 163:1961-1967. 1990 R-00267 Harney, J. P. and Bazer, F. W. Effects of Conceptus and Conceptus Secretory Products on Uterine Development in the Pig. Journal of Reproduction, Fertility and Development 2:179-187. 1990 R-00192 Hamey, J. P.; Mirando, M. A.; Smith, L. C. and Bazer, F. W. Retinol-Binding Protein: A Major Secretory Product of the Pig Conceptus. Biology of Reproduction 42:523-532. 1990 R-00090 Huffman, R. D.; Williams, S. E.; Hargrove, D. D.; Johnson, D. D. and Marshall, T. T. Effects of Percentage Brahman and Angus Breeding, Age-Season of Feeding and Slaughter End Point on Feedlot Performance and Carcass Characteristics. Journal of Animal Science 68:2243-2252. 1990 R-00468 Lamkey, J. W.; Leak, F. W.; Tuley, W. B.; Johnson, D. D. and West, R. L. Assessment of Sodium Lactate in Fresh Pork Sausage. Journal of Food Science 56:220-223. 1991 R-00249 Merkel, R. C.; McDowell, L. R.; Popenoe, H. L. and Wilkinson, N. S. Mineral Status Comparisons between Water Buffalo and Charolais Cattle in Florida. Buffalo Journal 1:33-41. 1990 R-00214 Mirando, M. A.; Leen, T.; Beers, S.; Hamey, J. P. and Bazer, F. W. Endometrial Inositol Phosphate Turnover in Pigs is Reduced During Pregnancy and Oestradiol-Induced Pseudopregnancy. Journal of Animal Science 68:4285-4291. 1990 R-00735 Mirando, M. A.; Ott, T. L.; Harey, J. P. and Bazer, F. W. Ovine Trophoblast Protein-One Inhibits Development of Endometrial Responsiveness to Oxytocin in Ewes. Biology of Reproduction 43:1070-1078. 1990 R-00111 Mtimuni, J. P. and McDowell, L. R. Performance of Beef Cattle Fed Dwarf (Mott) and Tall Napiergrasses (Pennisetum purpureum) Supplemented with Maize Bran. International Journal of Animal Sciences 5:191-196. 1990 R-01485 Paccamonti, D. L.; Chang, S. T.; Dubois, W.; Barros, C. M.; Drost, M.; Wilcox, C. J. and Fields, M. J. Circulating Concentrations of Porcine Relaxin in Cows: Evaluation of Vehicles and Routes of Administration. Theriogenology 35:1131-1146. 1991 R-00295 Pastrana, R.; McDowell, L. R. and Conrad, J. H. Mineral Concentrations in Leaves and Stems of Various Forages of the Colombian Paramo. Communications in Soil Science and Plant Analysis 20:2345-2360. 1990 R-00462 Prabowo, A.; McDowell, L. R.; Wilkinson, N. S.; Wilcox, C. J. and Conrad, J. H. Mineral Status Comparisons between Grazing Cattle and Water Buffalo in South Sulawesi, Indonesia. BuffaloJournal 1:17-32. 1990 R-01421 Sharp, D. C.; Grubaugh, W. R.; Weithenauer, J.; Davis, S. D. and Wilcox, C. J. Effects of Steroid Administration on Pituitary Luteinzing Hormone and Follicle Stimulating Hormones in Ovariectomized Pony Mares in the Early Spring. Biology of Reproduction 44:983-990. 1991 R-01036 Simmen, R. C.; Simmen, F. A. and Bazer, F. W. Regulation of Synthesis of Uterine Secretory Proteins: Evidence for Differential Induction of Porcine Uteroferria and Antilenkoproteinose Gene Expression. Biology of Reproduction 44:191-200. 1990 R-00879 Simmen, R. C.; Simmen, F. A.; Hofig, A.; Farmer, S. J. and Bazer, F. W. Hormonal Regulation of Insulin-Like Growth Factor Gene Expression in Pig Uterus. Endocrinology 127:2166-2174. 1990 R-01010 Thatcher, M. J.; Shille, V. M.; Fiss, M. F.; Bazer, F. W.; Sisum, W. and Randal, S. Characterization of Feline Conceptus Proteins during Pregnancy. Biology of Reproduction 44:108-120. 1991 R-00077 Williams, S. N.; Lawrence, L. A.; McDowell, L. R.; Wilkinson, N. S. and Wamick, A. C. Bone Parameters to Evaluate Cattle Phosphorus 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction Animal Science 37 Status. I. Chemical, Physical and Mechanical Properties. Journal of Animal Science 69:1231-1242. 1991 R-00078 Williams, S. N.; McDowell, L. R.; Lawrence, L. A.; Wilkinson, N. S. and Warnick, A. C. Bone Parameters to Evaluate Cattle Phosphorus Status. II. Noninvasive Techniques. Journal of Animal Science 69:1243-1254. 1991 R-00113 Young, K. H.; Buhi, W. C.; Davis, J.; Horseman, N. D.; Kraeling, R. R.; Linzer, D.; Bazer, F. W. and 0,. Biological Activities of Glycosylated and Nonglycosylated Porcine Prolactin. Molecular and Cellular Endocrinology 71:155-162. 1990 Kunkle W. E. Effect of Feeding Varying Dosages of Bambermycins (Flavomycin-R) on Body Weight. Hoechst-Roussel Agri-Vet Co. 11/01/90-09/30/91. $64,800 McDowell L. R. Mineral & Vitamin Nutrition for Tropical Ruminants. U. S. Dept of Agriculture. 07/01/89-06/30/91. $70,472 Olson T. A. Evaluation of Reproductive Performance of Beef Cattle in a Subtropical Environment. U. S. Dept of Agriculture. 07/24/90-06/30/95. $69,000 Sharp D. C. Vernal Transition as a Model for Folliculogenesis & Ovulation. U. S. Dept of Agriculture. 09/01/90-08/31/92. $142,000 R-00106 Young, K. J.; Kraeling, R. R. and Bazer, F. W. Effect of Pregnancy and Exogenous Ovarian Steroids on Endometrial Prolactin Receptor Ontogeny and Uterine Secretory Response in Pigs. Biology of Reproduction 43:592-599. 1990 R-00412 Zanetti, M. A.; Ammerman, C. B.; Henry, P. R. and Miles, R. D. Bioavailability of Copper Acetate and Copper Carbonate in Chicks as Measured by Tissue Uptake of Copper from Conventional Dietary Levels. Poultry Science 32:583. 1991 Non-Refereed Publications: N-00402 Eastridge, J. S. and Johnson, D. D. The Effect of Sex Class on Nutrient Composition of Goat Meat. International Goat Production Symposium. p. 143-146. 1991 Research Grants: Bates D. B. Nutritional Characterization of the Cell Wall Protein of Tropical Grasses. U. S. Dept of Agriculture. 07/01/91-06/30/92. $18,500 Bazer F. W. Successful Maternal Recognition of Pregnancy: Signalling Between the Conceptus. National Science Foundation. 04/15/91-03/31/92. $7,598 Bazer F. W. Endometrial Responses to Conceptus Secretary Proteins. National Institutes of Health. 07/01/87-12/31/90. $33,959 Bazer F. W. Editorial Office Society for the Study of Reproduction. Society for the Study of Repro. 06/15/89-12/31/91. $38,726 Johnson D. D. Influence of Muscling & Fatness on the Value of Various Carcass Components of Cows. Fl Beef Council. 10/01/90-09/30/91. $17309 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 38 Dairy Science DAIRY SCIENCE Dairy Science Bldg. 499, Shealy Drive Gainesville, FL 32611 Telephone: 904-392-1981 Fax: 904-392-5595 1,2,3 ROGER P. NATZKE Chm. & Prof., Mastitis & Milking Mgmt. 1,2 KERMIT C. BACHMAN Assoc. Prof., Biochem., Foods 1,2 DAVID K. BEEDE Assoc. Prof., Animal Nutrition 1,2 MICHAEL A. DE LORENZO Assoc. Prof., Genetics 1,2 PETER J. HANSEN Assoc. Prof., Environmental Physiolgist 1,23 BARNEY HARRIS JR Prof., Nutr. 1,2 HENRY H. HEAD Prof., Animal Phys. Lac. 1,2 FRANK A. SIMMEN Assoc. Prof., Biochemistry & Molecular Biology 2,3 CHARLES R. STAPLES Assoc. Prof., Forages 1,2 WILLIAM W. THATCHER Grad. Res. Prof., Anim. Physiol. Reproduction 2 HAROLD H. VAN HORN JR Prof., Animal Nutr. 3 DANIEL W. WEBB Prof., Dairy Mgmt. 1,2 CHARLES J. WILCOX Prof., Genetics CRIS Projects: DAS02501 Systems Analysis of Dairy Cattle Production M. A. DeLorenzo C. J. Wilcox DAS02578 Genetic Methods of Improving Dairy Cattle for the South C. J. Wilcox M. A. DeLorenzo D. K. Beede H. H. Head W. W. Thatcher K. C. Bachman DAS02621 Improvement of Beef Cattle in Multibreed Populations M. A. DeLorenzo DAS02760 Optimum Production and Utilization of Forages for Dairy Cattle in the Subtropics C. R. Staples DAS02858 Insulin-like Growth Factor-I (IGF-I) in Neonatal Growth and Development F. A. Simmen DAS02861 Function of Bovine Trophoblast Protein-1 Secreted by the Conceptus W. W. Thatcher P.J. Hansen DAS02886 Long-term Evaluation of Bovine Soma- totropin (bSTH) on Performance of Lactat- ing Dairy Cows H. H. Head C. J. Wilcox C. R. Staples DAS02991 Porcine IgG Receptors in Developing and Lactating Mammary Gland F. A. Simmen DAS02995 Systems for Providing and Controlling Interior Environments for Poultry and Livestock D. K. Beede D. R. Bray M. A. DeLorenzo DAS03009 Byproduct Feedstuffs for Lactating Cows: Evaluation of Rumen Degradability of Protein and Energy Availability H. H. Van Horn B. Harris DAS03045 Management of Animal Waste in Support of Sustainable Agriculture and Quality Water Resources H. H. Van Horn Refereed Publications: R-00340 Bachman, K. C. and Wilcox, C. J. Effect of Blood and High-Density Lipoprotein Preparations upon Lipase Distribution and Spontaneous Lipolysis in Bovine Milk. Journal of Dairy Science 733393-3401. 1990 R-00004 Bachman, K. C. and Wilcox, C. J. Effect of Time of Onset of Rapid Cooling on Bovine Milk Fat Hydrolysis. Journal of Dairy Science 73:617-620. 1990 R-00870 Badinga, L.; Collier, R. J.; Thatcher, W. W.; Wilcox, C. J.; Head, H. H. and Bazer, F. W. Ontogeny of Hepatic Bovine Growth Hormone Receptors in Cattle. Journal of Animal Science 69:1925-1934. 1991 R-01190 Driancourt, M. A.; Thatcher, W. W.; Terqui, M. and Andrieu, D. Dynamics of Ovarian Follicular Development in Cattle During the Estrous Cycle, Early Pregnancy and in Response to PMSG. Domestic Animal Endocrinology 8:209-221. 1991 R-01127 Elvinger, F.; Hansen, P. J.; Head, H. H. and Natzke, R. P. Actions of Bovine Somatrotropin In Vitro and In Vivo on Polymorphonuclear Leukocytes and Lymphocytes in Cattle. Journal of Dairy Science 74:2145-2152. 1991 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Dairy Science 39 R-00491 Emanuel, S. M.; Staples, C. R. and Wilcox, C. J. Extent and Site of Mineral Release From Six Forage Species Incubated in Mobile Dacron Bags. Journal of Animal Science 69:801-810. 1991 R-00365 Gross, T. S.; Thatcher, W. W.; O'Neill, C. and Danet-Desnoyers, G. Platelet-Activating Factor Altes the Dynamics of Prostaglandin and Protein Synthesis by Endometrial Explants from Pregnant and Cyclic Cows at Day 17 Following Estrus. Theriogenology 34:205-218. 1990 R-00520 Hansen, P. J. Coat Colour in Holstein Cows Modifies Physiological and Milk Production Responses to Solar Radiation. Veterinary Record 127:333-334. 1990 R-01398 Ko, Y.; Lee, C. Y.; Ott, T. L.; Davis, M. A.; Simmen, R. C.; Bazer, F. W. and Simmen, F. A. Insulin-Like Growth Factors in Sheep Uterine Fluids: Concentrations and Relationship to Ovine Trophoblast Protein-1 Production During Early Pregnancy. Biology of Reproduction 45:135-142. 1991 R-00746 Lander, M. F.; Hansen, P. J. and Drost, M. Effects of Stage of the Estrous Cycle and Steroid Treatment on Uterine Immunologlobulin Content and Polymorphonuclear Leukocytes in Cattle. Theriogenology 34:1169-1184. 1990 R-00337 Lander, M. L.; Hansen, P. J. and Drost, M. Antisperm Antibodies in Cows after Subcutaneous and Intrauterine Immunization. Veterinary Record 126:461-462. 1990 R-01253 Lee, C. Y.; Bazer, F. W.; Etherton, T. D. and Simmen, F. A. Ontogeny of Insulin-Like Growth Factors (IGF-I, IGF-II) and IGF- Binding Proteins in Porcine Serum During Fetal and Postnatal Development. Endocrinology 128:2336-2344. 1991 R-00363 Leslie, M. V.; Hansen, P. J. and Newton, G. R. Uterine Secretions of the Cow Contain Proteins that are Immunochemically Related to the Major Progesterone-Induced Proteins of the Sheep Uterus. Domestic Animal Endocrinology 7:517-526. 1990 R-00803 Low, B. G.; Hansen, P. J. and Drost, M. Inhibition of Lymphocyte Proliferation by Ovine Placenta Conditioned Culture Medium. Journal of Reproductive Immunology 19:25-41. 1990 R-00518 Lucy, M. C.; Staples, C. R.; Michel, F. M. and Thatcher, W. W. Effect of Feeding Calcium Soaps to Early Postpartum Dairy Cows on Plasma Prostaglandin F2a, Leutinizing Hormone, and Follicular GrowthMetabolite, and Follicular Growth. Journal of Dairy Science 74:483-489. 1991 R-00517 Lucy, M. C.; Staples, C. R.; Michel, F. M. and Thatcher, W. W. Energy Balance and Size and Number of Ovarian Follicles Detected by Ultrasonography in Early Postpartum Dairy Cows. Journal of Dairy Science 74:473-482. 1991 R-00394 Lucy, M. C.; Thatcher, W. W. and MacMillan, K. L. Ultrasonic Identification of Follicular Populations and Return to Estrus in Early Postpartum Dairy Cows Given Intravaginal Progesteronefor 15 Days. Theriogenology 34:325-340. 1990 R-00393 Lucy, M. L.; MacMillan, K. L.; Thatcher, W. W.; Tan, H. S. and Drost, M. Effect of Timing of Prostaglandin PGF2o Injection Subsequent to Embryo Collection on Resumption of Normal Follicular Development Following Superovulatory Treatment in Cattle Theriogenology 34:7-19. 1990 R-00316 Malayer,J. R. and Hansen, P. J. Effect of In Vitro Heat Shock Upon Synthesis and Secretion of Prostaglandins and Protein by Uterine and Placental Tissues of the Sheep. Theriogenology 34:231-250. 1990 R-00317 Malayer, J. R.; Hansen, P. J.; Gross, T. S. and Thatcher, W. W. Regulation of Heat Shock- Induced Alterations in Release of Prostaglandins by Uterine Endometrium of Cows. Theriogenology 34:219-230. 1990 R-00341 Newton, G. R.; Martinod, S.; Hansen, P. J.; Thatcher, W. W.; Siegenthaler, B.; Gerber, C. and Voirol, M. J. Bovine Interferon Alpha Causes Acute Changes in Body Temperature and Serum Progesterone Concentrations in Heifers. Journal of Dairy Science 73:3439-3448. 1990 R-00508 Plante, C.; Hansen, P. J.; Mirando, M. A.; Thatcher, W. W. and Bazer, F. W. Development of Antibodies for Studying Conceptus Interferons in the Cow. Journal of Reproductive Immunology 18:205-223. 1990 R-00658 Plante, C.; Hansen, P. J.; Thatcher, W. W.; Johnson, J. W.; Polard, J. W.; Mirando, M. A. 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 40 Dairy Science and Bazer, F. W. Purification of Bovine Trophoblast Protein-1 Complex and Quantification of its Microheterogeneous Variants as Affected by Culture Condition Journal of Reproductive Immunology 18:271-291. 1990 R-01183 Savio, J. D.; Bongers, H.; Drost, M.; Lucy, M. C. and Thatcher, W. W. Follicular Dynamics and Superovulatory Response in Holstein Cows Rated with FSH-P in Different Endocrine States. Theriogenology 35:915-929. 1991 R-01394 Simmen, F. A. Expression of the Insulin-Like Growth Factor-I Gene and its Products: Complex Regulation by Tissue Specific and Hormonal Factors. Domestic Animal Endocrinology 8:165-178. 1991 R-00779 Simmen, F. A. Strategies for Identifying, Isolating and Sequencing Genes of Importance in Growth Biology. Journal of Animal Science 69:24-37. 1991 R-01007 Simmen, F. A. and Simmen, R. C. Peptide Growth Factors and Proto-Oncogenes in Mammalian Conceptus Development. Biology of Reproduction 44:1-5. 1991 R-00185 Stephenson, D. C. and Hansen, P. J. Induction by Progesterone of Immunosuppressive Activity in Uterine Secretions of Ovariectomized Ewes. Endocrinology 126:3168-3178. 1990 R-01191 Thatcher, W. W.; Driancourt, M. A.; Terqui, M. and Badinga, L. Dynamics of Ovarian Follicular Development in Cattle following Hysterectomy and During Early Pregnancy. Domestic Animal Endocrinology 8:223-234. 1991 R-00861 Thatcher, W. W.; Hansen, P. J.; Plante, C.; Badinga, L.; Van Cleeff, J.; Danet-Desnoyers, G.; Savio, J. D.; Mirando, M. A. and Bazer, F. W. Understanding and Exploiting the Physiology and Endocrinology of Reproduction to Enhance Reproductive Efficiency in Cattle. Proceedings of the New Zealand Society of Animal Reproduction 50:109-121. 1990 Popular Articles: T-00039 Staples, C. R. Don't Be Fooled by a Forage's Crude Protein. Southeast Dairy Outlook 29:10-11. 1990 Research Grants: Beede D. K. Lactational Performance Responses to Supplemental Magnesium Oxide Sources. Premier Refractories & Chem. 10/01/90-03/01/92. $13,720 Beede D. K. Lactational Performance Responses to Supplemental Magnesium Oxide Sources. Baymag. 10/01/90-03/31/92. $13,720 Beede D. K. Lactational Performance Responses to Supplemental Magnesium Oxide Sources. Magnesitas De Rubian, S. A. 10/01/90-03/31/92. $13,720 Bray D. R. Pirlimycin Field Milk Residue Study. Upjohn Company. 02/12/91-12/31/91. $5,800 Delorenzo M. A. Development of Expert Systems with Hypertext for Teaching Management Decision Making. University of Illinois. 12/17/90-12/16/91. $7,000 Delorenzo M. A. Dairy Management Project. Miscellaneous Donors. 04/12/91-04/11/92. $4,000 Hansen P. J. Progesterone-Induced Uterine Immunoregulatory Proteins. National Institutes of Health. 08/01/90-07/31/92. $92,641 Natzke R. P. Increasing Efficiency of Milk Production in Florida. Fl Dairy Farmers Association. 04/15/88- 04/15/91. $55,455 Thatcher W. W. Utero-Ovarian-Conceptus Response to Heat Stress in the Dairy Cow & Its Involvement. Bard. 08/21/89-08/20/92. $53,120 Thatcher W. W. Allocation for Salary Support. UF Research Foundation, Inc. 09/26/90-12/31/91. $4,500 Van Horn H. H. Effect of Probos (R) on Dry Matter Intake & Milk Yield of Lactating Cows. Pioneer Hi-bred International. 08/21/90-06/30/91. $18,000 Van Horn H. H. Effects of Varying Undegradable Protein & Fat on Lactation & Nitrogen Excretion. Church & Dwight Company. 09/20/90-09/19/91. $5,000 Van Horn H. H. Utilization of Distillers' Dried Grains By Lactating Cows. Jack Daniel Distillery. 05/01/91- 12/31/92. $25,000 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction Entomology and Nematology 41 ENTOMOLOGY AND NEMATOLOGY Building 970, Hull Road / Gainesville, FL 32611 Telephone: 904-392-1901 Fax: 904-392-0190 1,23 JOHN L. CAPINERA Chair & Prof. 1,2 JON C. ALLEN Assoc. Prof., Population Dynam- ics & Systems Anal. 1,2 CARL S. BARFIELD Prof., Pest. Mgt., 1,2 FREDERICK D. BENNETT Grad. Res. Prof., Biological Control of Ag. Pests 1,2 DRION G. BOUCIAS Assoc. Prof., Insect Pathology 1,2 JERRY F. BUTLER Prof., Vet. Ent. 1,2,3 HARVEY L. CROMROY Prof., Radiation Biology 1,2 DONALD W. DICKSON Prof., Nematology 2,3 ROBERT A. DUNN Prof., Ext. Nematology 1,2 JOHN L. FOLTZ Assoc. Prof., Forestry 1,2 JOHN H. FRANK Prof., Biological Control 2 VIRENDRA K. GUPTA Prof., Systematics 1,2 DALE H. HABECK Prof., Immatures 1,2 DONALD W. HALL Prof., Med. Ent. 2 HARLAN G. HALL Asst. Prof., Honey Bee Genetics 23 FREDDIE A. JOHNSON Prof., Extension 23 PHILIP G. KOEHLER Prof., Extension 1,2 JAMES E. LLOYD Prof., Systematics 2 JAMES E. MARUNIAK Assoc. Prof., Genetic Eng. 1,2 ELLIS L. MATHENY JR Prof., Econ. Ent. 1,2 HEATHER J. MCAUSLANE Asst. Prof., Pest Resistance of Crop Plants 1,2 ROBERT T. MCSORLEY Prof., Nematology 1,2 JAMES L. NATION Prof., Physiology i JIMMY R. RICH Prof., Nematology ,3 MALCOLM T. SANFORD Prof., Apiculture J3 DONALD E. SHORT Prof., Extension 1,2 FRANK SLANSKY JR Assoc. Prof., Nutritional Ecology 1,2 GROVER C. SMART JR Prof., Nematology 1,2 JERRY L. STIMAC Prof., Population Econolgist 1 JOHN R. STRAYER Prof., Econ. Ent. 1,2 THOMAS J. WALKER Prof., Ecology 1,2 SIMON S. YU Prof., Insect Toxicology CRIS Projects: ENY02505 Taxonomy of the Ichneumonidae (Parasitic Hymenoptera) of the World V. K. Gupta ENY02527 Biological Control and Dynamical Models of Species Interactions J. C. Allen J. H. Frank J. L. Stimac ENY02552 Physiology and Biochemistry of Insect Adaptation J. L. Nation ENY02594 Identification of Honeybee Races through DNA Restriction Fragment Polymorphism H. G. Hall ENY02624 Biology of Genetically Changing Root-Knot and Cyst Nematodes of Soybean D. W. Dickson ENY02630 Taxonomy and Systematics of Nematodes G. C. Smart ENY02636 Biological Control of Pest Mole Crickets J. H. Frank T.J. Walker D. G. Boucias G. C. Smart F. D. Bennett ENY02664 Development of a Monitoring System for Sweetpotato Weevil Management R. T. McSorley ENY02682 Chemical Ecology of Host Colonization by the Black Turpentine Beetle, Dendroctonus terebrans J. L. Nation J. L. Foltz ENY02688 Application of Integrated Agrotechnology for Crop Production and Environmental Quality Protection J. C. Allen ENY02700 Application of Population Ecology in the Management of Plant Parasitic Nematodes R. T. McSorley ENY02708 Host-parasite Relationships of Nematodes on Landscape Ornamentals R. T. McSorley R. A. Dunn 2 Research 3 Extension 4 Other UF or Cooperating Agency - --- 1 Resident Instruction 42 Entomology and Nematology ENY02713 Interactions among Bark Beetles, Pathogens, and Conifers in North American Forests J. L. Foltz J.L. Nation ENY02735 Development and Testing of Multi-Lingual Programmed Instructional Materials in Pest Management and Plant Protection C. S. Barfield J. R. Strayer K. L. Andrews E. L. Matheny ENY02747 Biological Control of Whiteflies Damaging Citrus in Florida and the Caribbean F. D. Bennett J. H. Frank ENY02750 Development of a Monitoring System for Sweetpotato Weevil Management R. T. McSorley ENY02755 Pathology and Efficacy of Beauveria bassiana Against Lesser Cornstalk Borer D. G. Boucias ENY02756 Biological Control of the Sweetpotato Weevil: Pathogenicity and Efficacy of Entomopathogenic Nematodes G. C. Smart ENY02791 Identification, Behavioral Ecology, Genetics and Management of African Honeybees H. G. Hall ENY02823 Biological Factors Affecting the Abundance of the Sweetpotato Whitefly in the Carib- bean, Including Florida F. D. Bennett ENY02828 Biocontrol of Plant-Parasitic Nematodes with Pasteuria spp. D. W. Dickson ENY02846 Systematics, Ecology, and Behavior of Insects T. J. Walker ENY02860 African Honeybee Migration Followed with DNA Markers H. G. Hall ENY02862 Toxicology of Agriculturally Important Insect Pests of Florida S. S. Yu ENY02872 Systematics and Behavioral Ecology of Lampyridae (Coleoptera) J. E. Lloyd ENY03006 Biological Control of Selected Arthropods, Pests and Weeds through Introduction of Natural Enemies F. D. Bennett J. H. Frank D. H. Habeck ENY03012 Balance between the Intake of Beneficial Nutrients and Deleterious Allelochemicals in Caterpillars F. Slansky S.J. Yu ENY03021 Biology and Management of Nematodes Affecting Agronomic Crops D. W. Dickson J. R. Rich R. A. Dunn ENY03044 Development of Entomopathogens as Control Agents for Insect Pests D. G. Boucias J. L. Capinera J. E. Maruniak G. C. Smart J. L. Stimac D. W. Hall ENY03050 Alternative Management of Pickleworm and Melonworm in Cucurbit Vegetable Crops J. L. Capinera ENY03078 Physiological and Ecological Relationships Affecting Biting Flies and Ticks on Pastured Cattle J. F. Butler Refereed Publications: R-00526 Adeeye, O. A. and Butler, J. F. Field Evaluation of Carbon Dioxice Baits for Sampling Omithodoros turicata (Acari:Argasidae) in Gopher Tortoise Burrows. Journal of Medical Entomology 28:45-48. 1991 R-01277 Allen, J. C. Chaos and Coevolution: Evolutionary Warfare in a Chaotic Predator- Prey System. Florida Entomologist 74:50-59. 1991 R-00424 Allen, J. C. Chaos and Phase-Locking in Predator-Prey Models in Relation to the Functional Response. Florida Entomologist 73:100-110. 1990 R-00356 Atkinson, T. H.; Koehler, P. G. and Patterson, R. S. Checklist of the Cockroaches of Florida (Dictyoptera:Blattaria:Polyphagidae, Blattidae, Blattellidae, Blaberidae). Florida Entomologist 73:303-327. 1990 R-00101 Beard, C. B.; Butler, J. F. and Becnel, J. J. Nolleria pulicis n. gen., n. sp. (Microsporida: 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Entomology and Nematology 43 Chytridiopsidae), a Microsporidian Parasite of the Cat Flea, Ctenocephalides felis (Siphonaptera: Pulicidae). Journal of Protozoology 37:90-99. 1990 R-00608 Bennett, C. A. and Buckingham, G. R., Laboratory Biologies of Two Indian Weevils, Bagous affinis and Bagous laevigatus (Coleoptera:Curculionidae) that Attack Tubers of Hydrilla verticillata (Hydrocharitaceae). Entomological Society of America 84:420-428. 1991 R-00152 Bennett, F. D. Potential for Biological Control of the Stink Bug Nezura viridula, a Pest of Macadamias. Acta Horticultura 275:679-684. 1990 R-01278 Brewster, C. C. and Allen, J. C. Simulation of Plant Resistance in a Celery-Leafminer- Parasitoid Model. The Florida Entomologist 74:24-41. 1991 R-00157 Cassani, J. R.; Habeck, D. H. and Matthews, D. L. Life History and Immature Stages of a Plume Moth Sphenarches caffer (Zeller) (Lepidoptera:Pterophoridae) in Florida. Florida Entomologist 73:257-266. 1990 R-00299 Choate, P. M. A Checklist of the Ground Beetles of Florida (Coleoptera:Carabidae). The Florida Entomologist 73:476-492. 1990 R-00551 Dickson, D. W. and McSorley, R. T. Interaction of Three Plant-Parasitic Nematodes on Corn and Soybean. Journal of Nematology 22:783-791. 1990 R-00483 Frank, J. H. and McCoy, E. D. Endemics and Epidemics of Shibboleths and Other Things Causing Chaos. Florida Entomologist 73-1:1-9. 1990 R-01292 Frank, J. H. and McCoy, E. D. Medieval Insect Behavioral Ecology, and Chaos. Florida Entomologist 74:1-9. 1991 R-00048 Goodell, G.; Andrews, K. L. and Lopez, J. I. The Contributions of Agronomy-Anthropologists to On-Farm Research and Extension in Integrated Pest Management. Agricultural Systems Journal 32:321-340. 1990 R-01239 Haag, K. H. and Habeck, D. H. Enhanced Biological Control of Waterhyacinth Following Limited Herbicide Application. Journal of Aquatic Plant Management 29:24-28. 1991 R-00357 Hall, D. W. The Environmental Hazard of Ethyleneglycol in Insect Pit-Fall Traps. The Coleopterists 45:193-194. 1991 R-00961 Hall, H. G. Genetic Characterization of Honey Bees through DNA Analysis. The African Honey Bee. p. 45-73. 1990 R-00960 Hall, H. G. and Smith, D. R. Distinguishing African and European Honey Bee Matrilines Using Amplified Mitochondrial DNA. Science 88:4548-4552. 1990 R-00727 Hinkle, N. C.; Koehler, P. G. and Patterson, R. S. Egg Production, Larval Development and Adult Longevity of Cat Fleas (Siphonaptera:Pulicidae) Exposed to Ultrasound. Journal of Economic Entomology 83.306-2309. 1990 R-00083 Horton, D. R. and Capinera, J. L. Host Utilization by Colorado Potato Beetle (Coleoptera: Chrysomelidae) in a Potato/Weed (Solanum Sarrachoides Sendt.) System. Canadian Entomologist 122:113-121. 1990 R-00809 Koehler, P. G. and Patterson, R. S. Residual Efficacy of Chlorpyrifos and Diazinon for German Cockroaches (Orthoptera:Blattellidae) in Commercial Food Preparation Areas. Journal of Agricultural Entomology 26:59-63. 1991 R-00061 Koehler, P. G.; Leppla, N. C. and Patterson, R. S. Circadian Rhythm in the Cat Flea, Ctenocephalides felis (Siphonaptera:Pulicidae). The Clinical Applications of Chronobiology. p. 661-665. 1990 R-00410 Lloyd, J. E. Firefly Semiosystematics and Predation. Florida Entomologist 73:51-66. 1990 R-00155 Maruniak, J. E.; Fiesler, S. E. and McGuire, P. M. Susceptibility of Insect Cells and Ribosomes to Ricin. Molecular and Cellular Biology 96:543-548. 1990 R-00822 Matthews, D. L.; Habeck, D. H. and Hall, D. W. Annotated Checklist of the Pterophoridae (Lepidoptera) of Florida Including Larval Food Plant Records. Florida Entomologist 73:613-621. 1990 R-00601 McSorley, R. T. and Dickson, D. W. Spatial Dispersion of Nematodes in Small Plots. Journal of Nematology 23:65-72. 1991 R-01276 McSorley, R. T. and Gallaher, R. N. Cropping Systems for Management of Plant-Parasitic Nematodes. Proceedings of the Environmentally Sound Agriculture Conference. p. 38-45. 1991 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 44 Entomology and Nematology R-00256 McSorley, R. T. and Walter, D. E. Comparison of Soil Extraction Methods for Nematodes and Microarthropods. Agriculture, Ecosystems and Environment 34:201-207. 1990 R-00764 Moser, B. A.; Koehler, P. G. and Patterson, R. S. Separation of Cat Flea (Siphonaptera:Pulicidae) Instars by Individual Rearing and Head Width Measurements. Journal of Economic Entomology 84:922-926. 1991 R-00959 Muralidharan, K. and Hall, H. G. Prevalence of African DNA RFLP Alleles in Neotropical African Honeybees. Archives of Insect Biochemistry and Physiology 15:229-236. 1990 R-00416 Need, J. T. and Butler, J. F. Possible Applications of the Immune Response of Laboratory Mice to the Feeding of Argasid Ticks. Journal of Medical Entomology 28:250-253. 1991 R-00208 Need, J. T. and Butler, J. F. Sequential Feedings by Two Species of Argasid Tick on Laboratory Mice; Effects on Tick Survival, Weight Gain, and Attachment Time. Journal of Medical Entomology 28:37-40. 1991 R-00212 Need, J. T.; Butler, J. F.; Zam, S. G. and Wozniak, E. J. Antibody Responses of Laboratory Mice to Sequential Feedings by Two Species of Argasid Tick. Journal of Medical Entomology 28:105-110. 1990 R-00726 Nguyen, K. B. and Smart, Jr., G. C. Mode of Entry and Sites of Reproduction of Steinernema scapterisci in Mole Crickets. Journal of Nematology 23:267-268. 1991 R-00355 Nguyen, K. B. and Smart, Jr., G. C. Vertical Migration of Steinernema scapterisci in Soil. Journal of Nematology 22:574-578. 1990 R-00219 Oostendorp, M.; Dickson, D. W. and Mitchell, D. J. Host Range and Ecology of Isolates of Pasteuria spp. from the Southeastern United States. Journal of Nematology 22:525-531. 1990 R-00560 Oostendorp, M.; Dickson, D. W. and Mitchell, D. J. Population Development of Pasteuria penetrans on Meloidogyne arenaria. Journal of Nematology 23:58-64. 1991 R-00797 Pendland, J. C. and Boucias, D. G. Physiochemical Properties of Cell Surfaces from the Different Developmental Stages of the Entomogenous Hyphomycete Nomuraea riley. Mycologia 83:264-272. 1991 R-00210 Phillips, T. W. Attraction of Hylobius pales (Herbst) (Coleoptera:Curcululionidae) to Pheromones of Bark Beetles (Coleoptera:Scolytidae). The Canadian Entomologist 122:423-427. 1990 R-00282 Phillips, T. W. Responses of Hylastes salebrosus to Turpentine, Ethanol, and Pheromones of Dendroctonus (Coleoptera:Scolytidae). Florida Entomologist 73:286-291. 1990 R-00440 Powers, L. E.; Dunn, R. A. and McSorley, R. T. Size Differences Among Root-Knot Nematodes on Resistant and Susceptible Alyceclover Genotypes. Journal of Nematology 23:243-248. 1991 R-00572 Rich, J. R. and Hodge, C. H. Efficacy of Selected Fumigant Nematicides and Fenamiphos to Control Meloidogyne javanica in Florida Tobacco (Nicotiana tabacum L.). Nematropica 20:121-127. 1990 R-01156 Sanford, M. T. and Johnson, W. B. A Florida Honey Bee Feeding Study Using the Beltsville Bee Diet (R). BeeScience 1:72-76. 1990 R-01175 Skelley, P. E.; Goodrich, M. A. and Leschen, R. A. Fungal Host Records for Erotylidae (Coleoptera: Cucujoidea) of America North of Mexico. Entomological News 102:57-72. 1991 R-00040 Slansky, F. and Wheeler, G. S. Food Consumption and Utilization Responses to Dietary Dilution with Cellulose and Water by Velvetbean Caterpillars, Anticarsia gemmatalis. Physiological Entomology 16:99-116. 1990 R-00420 Slansky, Jr., F. Insect Nutritional Ecology as a Basis for Studying Host Plant Resistance. Florida Entomologist 73:359-378. 1990 R-01233 Tarjan, A. C. Tests with Three Ubiquitous Materials for Biocontrol of Meloidogyne Incognita Infecting Tomato Plants. Nematologia Mediterranea 18:231-232. 1990 R-00323 Walker, T.J. Butterfly Migration through North Peninsular Florida. Animal Behavior 16:241-252. 1991 R-00014 Walker, T. J. and Figg, D. E. Song and Acoustic Burrrow of the Prairie Mole Cricket, Gryllotalpa Major (Orthoptera:Gryllidae). 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Entomology and Nematology 45 Journal of the Kansas Entomological Society 63:237-242. 1990 R-00812 Wheeler, G. S. and Slansky, Jr., F. Impact of Constitutive and Herbivore-Induced Extractables from Susceptible and Resistant Soybean Foliage on Non-Pest Noctuid Caterpillars. Journal of Economic Entomology 84:1968-1079. 1991 R-00041 Wing, S. R. Timing of Photinus collustrans Reproductive Activity: Finding a Mate in Time (Coleoptera:Lampyridae). The Coleopterists Bulletin 45:57-74. 1991 R-00706 Yu, S. J. Insecticide Resistance in the Fall Armyworm, Spodoptera frugiperda (J. E. Smith). Pesticide Biochemistry and Physiology 39:84-91. 1991 R-00154 Yu, S.J. Liquid Chromatographic Determination of Permethrin Esterase Actviity in Six Phytophagous and Entomophagous Insects. Pesticide Biochemistry and Physiology 36:237-241. 1990 Non-Refereed Publications: N-00197 Frank, J. H. and Bennett, F. D. Conclusion on Classical Biological Control. Southern Cooperative Series Bulletin 355:175-179. 1990 N-00083 Gupta, V. K. The Taxonomy of the Kristotomus-Complex of Genera and a Revision of Kristotomus-Complex of Genera Kristotomus- Complex of Genera and a Revision of Kristotomus (Hymenoptera:Ichneumonidae:Tryphoninae). American Entomological Institute 25:1-88. 1990 N-00407 Smart, Jr., G. C. and Nguyen, K. B. Sting and Awl Nematodes: Belonolaimus spp. and Dolichodorus spp.. Manual of Agricultural Nematology. p. 627-667. 1991 Popular Articles: T-00080 Atkinson, T. H.; Koehler, P. G. and Patterson, R. S. The Nicaraguan Cockroach-Our Newest Cockroach Immigrant. Pest Management 9:12-13. 1990 Research Grants: Bennett F. D. Survey of Black Parlatoria Scale. U. S. Dept of Agriculture. 09/10/90-09/30/90. $5,000 Boucias D. G. Chemical Ecology & Biochemistry of Pest Lepidoptera. U. S. Dept of Agriculture. 07/01/90- 06/30/95. $177,000 Boucias D. G. Analysis of Insect Mycopathogen Host Cellular Recognition Interactions. U. S. Dept of Agriculture. 07/01/91-06/30/93. $100,000 Butler J. F. Formulations for Control of Otodectes cynotis & Rhipicephalus sanguineus on Dogs. Merck & Company. 08/01/90-07/31/91. $30,000 Butler J. F. Evaluation of Lilly Research Laboratories Formulations of L-537 Against Biting Diptera. Lilly Research Laboratories. 01/01/91-01/01/92. $1,200 Butler J. F. To Compare the In-Vitro Activity of Lilly Compounds Against Tick Species Omithodoros. Eli Lilly & Company. 04/01/91-03/31/92. $6,000 Capinera J. L. Alternative Management of Pickle Worm & Melonworm in Cucurbit Vegetable Crops. U. S. Dept of Agriculture. 07/01/90-06/30/93. $33,400 Cromroy H. L. 1990 Apistan Trials/Varroa Mite Control. Zoecon Corporation. 07/06/90-07/05/91. $6,000 Dickson D. W. Benefits Associated with Use of Dichloropropene Aldicarb & Fenamiphos on Peanut. University of Georgia. 06/01/90-05/31/91. $12,500 Dickson D. W. Biocontrol of Plant-Parasitic Nematodes with Pasteuria Spp.. U. S. Dept of Agriculture. 07/01/89-06/30/91. $42,653 Dickson D. W. Integrated Pest-Management in Selected Egyptian & USA Cropping Systems. U. S. Dept of Agriculture. 10/01/90-09/30/93. $7,975 Dickson D. W. Integrated Pest-Nematode Management in Selected Egyptian & USA Cropping Systems. U. S. Dept of Agriculture. 10/01/90-09/30/93. $15,950 Dickson D. W. Biocontrol of Plant-Parasitic Nematodes with Pasteuria Supp. U. S. Dept of Agriculture. 07/01/89-06/30/92. $45,242 Frank J. H. Evaluation of Fenoxycarb in the Laboratory for Potential to Control Mole Crickets. Maag Agrochemicals. 08/01/90-07/31/91. $4,620 Frank J. H. Experimental Dispersal of Parasitic Nematodes by Mole Crickets. Fl Turf-grass Association. 10/01/89-12/31/92. $3,000 Koehler P. G. Foraging Behavior & Diet Composition of the Florida Woods Cockroach Eurycotis Floridana. Johnson, S. C. & Son. 08/07/90-08/06/91. $10,000 Koehler P. G. Evaluation of Insecticides for Control of Cat Fleas. Amer Cyanamid Company. 05/15/90- 09/01/90. $4,320 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 46 Entomology and Nematology Koehler P. G. Evaluation of Pyriproxyfen for Control of German Cockroaches. McLaughlin Gormley King Co. 07/01/90-07/01/91. $19,300 Koehler P. G. Evaluation of Bait Trays for Control of German Cockroaches in Apartments. Johnson, S. C. & Son. 05/01/90-12/31/91. $24,000 Koehler P. G. Evaluation of Aerosols for German Cockroach Control. Johnson, S. C. & Son. 08/13/90-10/01/90. $4,800 Koehler P. G. Fire Ant Field Trials. Amer Cyanamid Company. 09/10/90-11/01/90. $3,000 Koehler P. G. Pharah Ant Studies with Large Colonies. McLaughlin Gormley King Co. 11/14/90-06/01/91. $5,400 Koehler P. G. Evaluation of Attractants to Pest Species. Whitmire Laboratories. 03/01/91-09/01/91. $3,600 Koehler P. G. Evaluation of Insecticides for Control of Cat Fleas. Amer Cyanamid Company. 02/01/91- 10/31/91. $8,640 Koehler P. G. Efficacy of Borates for Control of Cat Fleas. U. S. Borax Chemical Corp. 09/01/90-07/01/91. $5,000 Maruniak J. E. US-Brazil Workshop of Cooperation in Biological Control. U. S. Dept of Agriculture. 10/01/90-12/31/90. $10,000 Rich J. R. Leaching of Selected Chemical Constituents From Soil Amended with Crab Scrap Compost. Dept of Environmental Regulation. 10/10/90-12/01/90. $28,000 Stimac J. L. Biological Control of Fire Ants. Dept of Agricul & Consumer Ser. 07/01/90-06/30/91. $147,830 Yu S. S. Detection & Characterization of Insecticide Resistance in the Fall Armyworm Spodoptera. University of Georgia. 06/01/90-12/31/91. $17,000 1 Resident Instruction 2 Research 3 Extension 4 Other UF or Cooperating Agency 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Environmental Horticulture 47 ENVIRONMENTAL HORTICULTURE 1545 Fifield Hall / Gainesville, FL 32611 Telephone: 904-392-1829 Fax: 904-392-3870 1,2,3 THOMAS J.SHEEHAN Chair & Prof. 1,2 JAMES E. BARRETT Prof., Woody Omam. & Flor. 1,2 WILLIAM J. CARPENTER JR Prof., Woody Ornamentals 1,2 BIJAN DEHGAN Prof., Woody Ornamentals 1,2 ALBERT E. DUDECK Prof., Turf 2 EVERETT R. EMINO Asst. Dean & Prof 23 EDWARD F. GILMAN Asst. Prof., Plant Environment 1,2 CHARLES L. GUY Assoc. Prof., Plant Physiology & Biochemistry 1,2,3 23 2,3 MICHAEL E. KANE Asst. Prof., Tissue Culture LAMBERT B. MCCARTY Asst. Prof., Turfgrass Production And Maintenance DENNIS B. MCCONNELL Prof., Foliage TERRILL A. NELL Prof., Floriculture THOMAS YEAGER Assoc. Prof., Woody Omam. CRIS Projects: ORH02518 Altered Gene Expression and Protein Synthesis in Spinach Acclimation C. L. Guy ORH02519 Environmental Factors Affecting Ornamental Plants T. A. Nell J. E. Barrett C. L. Guy D. B. McConnell A. E. Dudeck D. L. Ingram T. J. Sheehan ORH02695 Technical and Economical Efficiencies of Producing and Marketing Landscape Plants D. B. McConnell ORH02778 Freeze Damage and Protection of Fruit and Nut Crops C. L. Guy ORH02803 Low Temperature Regulated Genes Associ- ated with Freezing Tolerance in Spinach C. L. Guy ORH03017 Micropropagation Systems Development for Native Wetland, Aquarium and Water Garden Plant Production M. E. Kane ORH03018 Seed Dormancy and Germination of Orna- mental Plants W. J. Carpenter B. Dehgan ORH03023 Introduction and Evaluation of Ornamental Plants B. Dehgan T. J. Sheehan A. E. Dudeck ORH03039 Effects of Production System and Environ- mental Factors on Tree Root Growth Following Planting E. F. Gilman M. E. Kane ORH03042 Weed Management in Commercial Turfgrass L. B. McCarty ORH03054 Integrated Delivery of Nutrients and Water to Ornamental Plants T. H. Yeager ORH03069 Low Temperature Regulated Genes Associ- ated with Freezing Tolerance in Spinach C. L. Guy Refereed Publications: R-00235 Black, L. A.; Nell, T. A. and Barrett, J. E. Development and Postharvest Longevity of 'Gloria' Azalea as Affected by Dormancy Breaking Method. HortScience 25:810. 1990 R-01002 Gilman, E. F. and Kane, M. E. Growth Dynamics following Planting of Junipers chinensis Cultivars. American Society of Horticultural Science 116:637-641. 1991 R-01275 Gilman, E. F. and Yeager, T. H. Fertilizer Type and Nitrogen Rate Affects Field Grown Laurel Oak. Florida State Horticultural Society 103:370-372. 1990 R-00091 Guy, C. Freezing Stress Tolerance: Role of Protein Metabolism in Cold Acclimation. Annual Review of Plant Physiology and Molecular Biology 41:187-223. 1990 R-00886 Harris, J. R. and Gilman, E. F. Production Method Affects Growth and Root Regeneration of Leyland Cypress, Laurel Oak and Slash Pine. Journal of Arboriculture 17:64-69. 1991 R-00651 Jenks, M.; Kane, M. E.; Marousky, F. J.; McConnell, D. B. and Sheehan, T. J. In Vitro Nymphaea 'Daubeniana'. HortScience 25:1664. 1990 2 Research 3 Extension 4 Other UF or Cooperating Agency - 1 Resident Instruction 48 Environmental Horticulture R-00669 Kane, M. E. and Gilman, E. F. In Vitro Propagation and Bioassay Systems for Evaluation Growth Regulator Effects on Aquatic Plants. Journal of Aquatic Plant Management 29:29-32. 1991 R-00573 Maekawa, S. and Carpenter, W. J. Verbena Seed Hilum Morphology Contributes to Irregular Germination. HortScience 26:129-132. 1991 R-00582 Martin, C. A. and Ingram, D. L. Evaluation of Thermal Properties in Container Media and Effect of Irrigation on Temperature Dynamic in Container Media. Journal of Environmental Horticulture 9:24-28. 1991 R-00202 Nell, T. A. and Noordegraaf, C. V. Effect of Shipping Temperature and Duration and Interior Irradiance Level on Postproduction Longevity of Potted Rose. HortScience 25:25. 1990 R-00203 Roude, N.; Nell, T. A. and Barrett, J. E. Effects of N Source, N Concentration, Medium and Cultivar on Growth and Longevity of Potted Chrysanthemums. HortScience 26:49-52. 1991 R-00204 Roude, N.; Nell, T. A. and Barrett, J. E. Nitrogen Source and Concentration, Growing Medium, and Cultivar Affect Longevity of Potted Chrysanthemums. HortScience 26:49-52. 1990 R-00612 Ruter, J. M. and Ingram, D. L. Seed Germination of Sophora Secundiflora: Effect of Scarification Treatments. HortScience 26:256-257. 1991 R-00291 Ruter, J. M. and Ingram, D. L. The Effect of Supraoptimal Temperatures on Root Respiratory Characteristics of'Rotundifolia' Holly. American Society for Horticultural Science 116:560-564. 1991 R-00118 Ruter, J. M. and Ingram, D. L. The Influence of Supraoptimal Root-Zone Temperatures on 14C- Photosynthate Partitioning in Ilex crenata Thunb. 'Rotundifolia'. American Society for Horticultural Science 115:1008-1013. 1990 R-00547 Yeager, T. H.; Johnson, C. R. and Schenck, N. C. Growth Response of Podocarpus and Ligustrum to VA Mycorrhizae and Fertilizer Rate. Journal of Environmental Horticulture 8:128-132. 1990 Non-Refereed Publications: N-00259 Carpenter, W. J. and Ostmark, E. R. Handling, Storage, and Germination of Formosan Lily Seed. Florida State Horticultural Society Proceedings 103:209-212. 1990 N-00292 Colon, W.; Kane, M. E. and Ingram, D. L. Effects of Abscisic Acid on Photosynthesis, Growth and Development of Stage III Aronia arbutifolia (Rosaceae). Florida State Horticultural Society 103:178-182. 1990 N-00302 Dehgan, B.; Sheehan, T. J.; Kane, M. E. and Almira, F. C. Vegetative Propagation of Florida Native Plants: V. Prunus serotina and P. umbellata. Florida State Horticultural Society 103:172-174. 1990 N-00304 Dudeck, A. E. Influence of Planting Method, Fertility Program, Cultivar, and Soil Type on St. Augustinegrass. Florida State Horticultural Science 103:355-360. 1990 N-00120 Kane, M. E.; Jenks, M. and Sheehan, T. J. In Vitro Propagation Studies in the Nymphaeaceae: American Lotus. Water Garden Journal 6:31-33. 1990 N-00284 Kane, M. E.; Philman, N. L. and Lee, T. M. Evaluation of the Cultusak In Vitro Plant Culture System. Florida State Horticultural Society 103:182-186. 1990 N-00308 McConnell, D. B. Growth Rate of Boston Fern Affected by Irrigation Frequency. Florida State Horticultural Society 103:159-162. 1990 N-00349 McConnell, D. B.; Kane, M. E. and Shiralipour, A. Growth of Pickerelweed in Municipal Solid Waste Compost and Yard Trash Compost. Florida State Horticultural Society 103:165-167. 1990 N-00343 Stinson, J. M.; Brinen, G. H.; McConnell, D. B. and Black, R. J. Evaluation of Landscape Mulches. Florida State Horticultural Society 103:372-377. 1990 Popular Articles: 00052 Barrett, J. E. and Nell, T. A. How do the New Developments with Growth Retardants Affect You. 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Environmental Horticulture 49 Florida Ornamental Growers Association Newsletter 13:1-3. 1990 T-00032 Gilman, E. F. Juniper Root Growth into Landscape Soil One Year After Planting. Florida Nurseryman 37:54-56. 1990 * T-00068 Gilman, E. F. and Beeson, Jr., R. C. Producing and Transplanting Trees in Fabric Containers. Florida Nurseryman 37:50. 1990 T-00023 Gilman, E. F. and Kane, M. E. Effect of Root Pruning at Different Shoot Growth Stages on Growth and Transplantability of Southern Magnolia. Nurseryman's Digest 24:46-47. 1990 T-00044 Nell, T. A. Commercial Transport of Flowering Potted Plants: Keeping Quality Beyond the Bench. Grower Talks 53:24-39. 1990 T-00134 Nell, T. A. Floriculture Worldwide Issues for the 1990's. Floriculture International 1:25-27. 1991 T-00133 Nell, T. A. How to Make Long Lasting, Top Performers Out of Your Pot Mums. Grower Talks 54:67-80. 1991 T-00045 Nell, T. A. and Barrett, J. E. A Review of Florida Poinsettia Production 1989. Florida Ornamental Growers Association Newsletter 13:7-8. 1990 Research Grants: Barrett J. E. Hydretain Research Floriculture Crops. Ecologel USA. 06/01/91-05/31/93. $25,000 Carpenter W. J. Terminating Seed Dormancy of Bedding Plants with Growth Regulating Chemicals. Bedding Plants Foundation. 09/01/90-08/31/91. $3,000 Dehgan B. Superabsorbent Amended Media for Container Grown Orn. Crops. Stochausen Incorporated. 10/01/90-09/30/91. $29,934 Dehgan B. Vegetative Propagation of Oaks. Horticultural Research Inst. 01/02/91-01/01/92. $1,500 Dudeck A. E. Evaluation of Composted Solid Wastes for St. Augustine Grass Sod Production. Fl Board of Regents. 07/01/90-12/31/92. $17350 Dudeck A. E. Evaluation of Micrea as a Nitrogen Source for Turfgrass Fertilization. Agriventures. 05/15/91- 12/31/92. $6,000 Gilman E. F. Transplantability of Root Pruned & Unpruned Large Trees. Int Society of Arboriculture. 05/30/90-05/30/91. $4,000 Gilman E. F. Comparing Development of Transplanted Container Field & Fabric Container-Grown Trees. Horticultural Research Inst. 01/01/91-12/31/92. $1,500 Gilman E. F. Irrigation Requirements of Trees Transplanted From Containers Grobags & from the field Int Society of Arboriculture. 05/31/91- 05/30/92. $2,000 Guy C. L. Low Temperature Genes Associated with Freezing Tolerance in Spinach. U S Dept of Agriculture. 09/01/90-08/31/93. $200,000 Guy C. L. Characterization of a HSP70 Cognate Upregulated During Cold Acclimation. National Science Foundation. 02/15/91-01/31/94. $60,000 Guy C. L. Application of Low Temperature & Drought Responsive Genes in Agriculture. State University System. 12/27/90-12/26/91. $50,000 Kane M. E. Tissue Culture Propagation of Ornamental Water Lilies. Dept of Agricul & Consumer Ser. 03/06/91-12/06/91. $13,270 McConnell D. B. Evaluation of H&H Products as Growth Substrates. H. & H. Lsd Inc. 08/15/90-08/01/91. $5,000 McConnell D. B. Replacing Peat & Pine Bark in Container Media with Composted Yard Waste. Horticultural Research Inst. 01/02/91-01/01/92. $2,000 McConnell D. B. Evaluation of Incinerator Residue. Fl Mining & Materials. 03/21/91-08/30/91. $1,000 Nell T. A. Development & Horticultural Evaluation of New Floral Crops. U S Dept of Agriculture. 05/01/90-04/30/91. $9,000 Nell T. A. Factor Affecting Postproduction Longevity of Flowering Plants Grown in Peatwool. Partek North America. 06/15/90-06/14/92. $22,800 Nell T. A. Production & Postproduction Longevity of Flowering Potted Plants with Fibersorb. Arco Chemical Company. 10/15/90-04/15/91. $3,600 Nell T. A. Heat Delay of Flowering Potted Plants. Manatee Fruit Co. 09/01/90-08/30/91. $10,000 Nell T. A. Increasing Post Production Quality & Longevity of Flowering Potted Plants with Wetting Agents. Aquatrols Corp of America. 01/01/91- 12/31/92. $24,000 Nell T. A. Increasing Postharvest Longevity of Jamaican Grown Cut Flowers. Jamaica Agricultural Dev Found. 01/02/91-12/31/92. $47,096 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 50 Environmental Horticulture Nell T. A. Post-Greenhouse Evaluations of Forced Bulbous Plants. Amer Floral Endowment. 01/01/91- 12/31/91. $8,000 Nell T. A. Physiological & Hormonal Factors Related to Longevity of Flowering Potted Plants. Amer Floral Endowment. 01/01/91-12/31/91. $14,500 Sheehan T. J. Royalty Returns. UF Research Foundation, Inc. 10/10/90-06/30/91. $482 Yeager T. H. Bibliography of Water Research on Nursery Crops. Horticultural Research Inst. 06/21/90- 06/20/91. $6,500 Yeager T. H. Nitrogen Release From RLCU Fertilizer RD451. Pursell Industries. 11/01/89-12/31/90. $1,920 Yeager T. H. Monitoring Nutrient Runoff From Container Nurseries. Sierra Chemical Company. 02/01/88- 12/31/89. $1,000 Yeager T. H. Response of Selected Ornamentals to Slow- Release Fertilizer. Grace-Sierra. 05/01/90-05/01/91. $2,000 Yeager T. H. Slow-Release Fertilizer Evaluations. Pursell Industries. 04/25/91-07/01/92. $3,500 1 Resident Instruction 2 Research 3 Extension 4 Other UF or Cooperating Agency Food and Resource Economics 51 FOOD AND RESOURCE ECONOMICS 1157 McCarty Hall / Gainesville, FL 32611 Telephone: 904-392-1826 Fax: 904-392-8634 1,23 LAWRENCE W. LIBBY Chmn. & Prof., Public Policy & Resource Econ 1,2,3 CHRIS 0. ANDREW Prof., Trade, Dvelopment & Marketing 1,2,3 EMERSON M. BABB Eminent Scholar, Marketing 1,2 RICHARD P. BEILOCK Assoc. Prof., Mktg. Transportation 1,2 WILLIAM G. BOGGESS Prof., Farm Mgt., Prod. Resources 1,2 ROBERT J. BURKHARDT Assoc. Prof., Philoso- phy Agric. 3 ROY R. CARRIKER Prof., Public Policy, Nat. Resources Econ. 2,3 RODNEY L. CLOUSER Assoc. Prof., Public Policy 1,2 DOROTHY A. COMER Assoc. Prof., Natural Resource Econ. 1,2 CARLTON G. DAVIS Distinguished Serv. Prof., Food & Nutrition Econ. 2,3 ROBERT L. DEGNER Prof. & Dir., Market Res. Center 2,3 JOSE K. DOW Prof. & Chief of Party Usaid Bolivia 1,2 ROBERT D. EMERSON Prof., Prod. Econ. Economitric Labor 3 GARY F. FAIRCHILD Prof., Ext. Ag. Mkgt. Spec. 23 STEVEN A. FORD Asst. Prof., Farm Management 1,2,3 CHRISTINA H. GLADWIN Assoc. Prof., Small Farm Management 1,23 JOHN R. GORDON Assoc. Dept. Chmn. And Prof., Rural Econ. Devlp. Ag. Public Policy 1,2 PETER E. HILDEBRAND Prof., Int'l Devel. Farming Systems/small Farms 1,3 JOHN HOLT Prof., Farm Mgt. Spec., Prod. Econ. 13 KARL W. KEPNER Distinguished Serv. Prof., Food Mktg & Distribution 1,2 CLYDE F. KIKER Prof., Nat. Resources Env. Econ. 1,2 RICHARD L. KILMER Prof., Ag. Marketing 1,2 MAX R. LANGHAM Prof., Econ. Devel. & Econometrics 1,2 UMA LELE Grad. Res. Prof., International Economic Development 1,2 BURL F. LONG Prof., Undergraduate Coord. Nat. Resource Econ. 1,2 GARY D. LYNNE Prof., Nat. Res. Econ. Prod. Econ. 1,2 JOSEPH W. MILON Prof., Env. & Nat. Resource Econ. 1,2 CHARLES B. MOSS Asst. Prof., Agri. And Agribusiness Finance 1,2,3 WILLIAM D. MULKEY Prof., Res. & Env. Regional Econ. Comm. Devel. 33 MICHAEL T. OLEXA Assoc. Prof., Agri. Law 1,2 LEONIDAS POLOPOLUS Prof., Mktg. & Policy 1,2 JOHN E. REYNOLDS Prof., Natural Resources 1,2 JAMES L. SEALE, JR. Assoc. Prof., Int'l Ag. Trade, Finance & Policy 1,2 JOHN S. SHONKWILER Prof., Price Analysis 2,3 JAMES R. SIMPSON Prof., Livestock Mktg. Devlpmt. 1,2 THOMAS H. SPREEN Prof., Quantitative Methods 1,2 TIMOTHY G. TAYLOR Assoc. Prof., Prod. Econ. & Econometrics 3,4 KENNETH R. TEFERTILLER Prof., Ag. Econ. 13 PETER J. VAN BLOKLAND Prof., Finance, Futures Mkts., Mgmt. 2,3 JOHN J. VANSICKLE Prof., Ag. Marketing 1,2 RONALD W. WARD Prof., Mktg. And Industrial Org. 1,2 RICHARD N. WELDON Asst. Prof., Agribusiness Finance CRIS Projects: FRE02260 Technology Generation for Enterprises on Small Farms in North Florida P. E. Hildebrand FRE02500 Market Performance, Structural Change and Marketing Alternatives for Agricultural and Food Industries R. W. Ward R. L. Kilmer T. H. Spreen L. Polopolus E. M. Babb R. L. Degner FRE02501 Systems Analysis of Dairy Cattle Production T. H. Spreen FRE02541 National and Regional Analysis, Evaluation, Planning and Financing of Agricultural Research M. R. Langham J. S. Shonkwiler 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 52 Food and Resource Economics FRE02677 Changing Patterns of Food Demand and Consumption Behavior M. G. Brown C. G. Davis J. Lee FRE02688 ,Application of Integrated Agrotechnology for Crop Production and Environmental Quality Protection W. G. Boggess FRE02694 Economic and Technical Forces Shaping the Southern Dairy Industry R. L. Kilmer FRE02695 Technical and Economical Efficiencies of Producing and Marketing Landscape Plants J. J. Haydu FRE02701 Competition and Change in the Fruit and Vegetable Production and Marketing Systems T. G. Taylor J. J. VanSickle G. F. Fairchild D. J. Zimet FRE02719 Financing Agriculture in a Changing Envi- ronment: Macro, Market, Policy, and Management Issues C. B. Moss R. N. Weldon FRE02726 Rural Entrepreneurship B. F. Long E.M. Babb C. H. Gladwin W. D. Mulkey D. J. Zimet R. L. Clouser FRE02738 Intra-Caribbean and U.S. Caribbean Agricultural Trade: Implications for Development J. L. Seale C. G. Davis M. R. Langham W. D. Mulkey FRE02782 International Trade Research on Commodi- ties Important to the Southern Region J. L. Seale G. F. Fairchild C. B. Moss M. G. Brown J. Y. Lee J. R. Simpson FRE02790 The Organization and Performance of World Food Systems: Implications for U.S. Policies R.W. Ward J. L. Seale FRE02793 Economic Analysis of Southern Regional Adjustments to a Dynamic Livestock-Meat Sector T. H. Spreen J. R. Simpson FRE02796 Quantifying Long Run Agricultural Risks and Evaluating Farmer Responses to Risk W. G. Boggess FRE02802 Specification, Estimation and Evaluation of Economic Models of the Food Sector J. S. Shonkwiler FRE02804 Enterprise Budgets for Selected Florida Vegetables T. G. Taylor S. A. Ford FRE02995 Systems for Providing and Controlling Interior Environments for Poultry and Livestock J. Holt FRE03052 Background and Finishing Florida Feeder Calves T. H. Spreen FRE03093 Organization and Structural Changes in the Dairy Industry C. H. Gladwin J. Burkhardt FRE03094 Transportation of Perishables R. P. Beilock D. A. Comer Refereed Publications: R-01068 Beilock, R. P.; Patterson, J. and Shell, T. The National and Regional Importance of Wholesale Produce Markets. Journal of the Food Distribution Research Society 90:1-20. 1990 R-01184 Fairchild, G. F. and Lee, J. Y. Citrus Export Market Development and Maintenance. Journal of Food Distribution Research 90:87-95. 1990 R-00704 Featherstone, A. M. and Moss, C. B. Quantifying Gains to Risk Diversification Using Certainty Equivalence in a Mean Variance Model: An Application to Florida Citrus. Southern Journal of Agricultural Economics 22:191-198. 1990 R-01114 Haydu, J. J. and Meerow, A. W. Buyer Perceptions of Foliage Trade Shows: Implications for Marketing. Journal of Environmental Horticulture 9:75-79. 1991 R-00596 Hildebrand, P. E. Agronomy's Role in Sustainable Agriculture: Integrated Farming Systems. 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Food and Resource Economics 53 Journal of Production Agriculture 3:285-288. 1990 R-00811 Kalaitzandonakes, N. and Taylor, T. G. Competitive Pressure and Productivity Growth: The Case of the Florida Vegetable Industry. Southern Journal of Agricultural Economics. p. 13-21. 1990 R-00026 Libby, L. W. and Boggess, W. G. Chapter 1. Agriculture and Water Quality Where Are We and Why?. Agriculture and Water Quality: International Persectives. p. 9-37. 1990 R-00522 Lynne, G. D. and Burkhardt, J. The Evolution of Water Institutions in Florida: A Neoinstitutionalist Perspective. Journal of Economic Issues 24:1059-1077. 1990 R-00898 Lynne, G. D.; Milon, J. W. and Wilson, M. E. Identifying and Measuring Potential Conflict in Water Institutions. Water Resources Bulletin 26:669-676. 1990 R-01188 Milon, J. W. Measuring the Economic Value of Anglers' Kept and Released Catch. North American Journal of Fisheries Management 11:185-189. 1991 R-00510 Moss, C. B.; Shonkwiler, J. S. and Ford, S. A. A Risk Endogenous Model of Aggregate Agricultural Debt. Agricultural Finance Review 50:73-79. 1990 R-01406 Moss, C. B.; Weldon, R. N. and Featherstone, A. M. A Simple Approach to Evaluating Risk Diversification Opportunities. American Society of Farm Managers and Rural Appraisers 55:20-24. 1991 R-01073 Moss, C. B.; Weldon, R. N. and Muraro, R. P. The Impact of Risk on the Discount Rate for Different Citrus Varieties. Agribusiness: An International Journal 7:327-328. 1991 R-00500 Polopolus, L. C. Current Status and Future Directions of Agricultural Economics Programs at 1890 Institutions: Discussion. Southern Journal of Agricultural Economics 22:57-60. 1990 R-00618 Reynolds, A. Analyzing Fresh Vegetable Consumption from Household Survey Data. Southern Journal of Agricultural Economics. p. 31-38. 1990 R-00619 Shonkwiler, J. S. Consumer's Surplus Revisited. American Journal of Agricultural Economics MAY:410-414. 1991 R-01374 VanSickle, J. J. and Castejon, M. Economic Implications of a Change in the Size of Tomato Carton from 25 to 20 Pounds. Florida State Horticultural Society 103:226-229. 1990 Non-Refereed Publications: N-00026 Alvarez, J. and Polopolus, L. C. Sugar and Sugar Substitutes in the United States in the 1990's. Inter-American Sugar Cane Seminars Proceedings 10:50-55. 1991 N-00005 Libby, L. W. Public Recreation on Private Land: Research Needs and Considerations. Income Opportunities for the Private Landowner. p. 60-72. 1990 N-00022 Mahan, R. and Beilock, R. P. Unloading Practices for Produce Revisited. Journal of Transportation on Research Forum 30:239-246. 1990 Research Grants: Babb E. M. Procedures to Facilitate Development of Agribusiness Programs. U. S. Dept of Agriculture. 06/01/90-05/31/93. $15,000 Beilock R. P. Availability of Trucking Services for Marketing Fresh Produce. U. S. Dept of Agriculture. 09/12/90-04/15/91. $6,500 Beilock R. P. Brokerage & Electronic Marketing of Trucking Services. University of North Carolina. 08/01/89-10/01/91. $25,014 Boggess W. G. Agriculture & Water Quality: An Area Study of a Multicounty Site in Florida/Georgia. U. S. Dept of Agriculture. 10/01/90-09/30/91. $17,000 Burkhardt R. J. Ethics in Agriculture: Holistic & Experiential Approaches to Undergraduate Education. Texas A&M University. 09/15/90- 09/30/91. $18,145 Degner R. L. 1991 Observational Survey of Child Restraint Device Usage in Florida. Dept of Community Affairs. 04/02/91-09/30/91. $35,000 Degner R. L. Long-Range Strategic Plans for the Florida Farmers' Market System. Dept of Agricul & Consumer Ser. 09/28/90-12/31/91. $75,000 Degner R. L. Evolving Changes in Consumer Demand for Fresh Florida Tomatoes. Fl Tomato Committee. 03/15/91-09/30/91. $16,700 Gordon J. R. Graduate Student Support. Fl Sugar Cane League. 08/01/90-07/31/91. $7,500 2 Research 3 Extension 4 Other UF or Cooperating Agency -- 1 Resident Instruction 54 Food and Resource Economics Kiker C. F. Systems Analysis of Options for Waste Reduction & Recycling in Small Communities. Fl Board of Regents. 07/01/90-06/30/92. $19,900 Lynne G. D. Agricultural Water Needs & Sources. Water Management Districts. 10/25/90-07/15/91. $100,000 Lynne G. D. Water Shortage Economic Impact Model. Apogee Research. 09/01/90-12/01/90. $23,000 Milon J. W. A Regional Analysis of Marine Recreational Fisheries Participation & Attitudes. Dept of Natural Resources. 05/01/91-06/01/92. $60,865 Milon J. W. The Effect of Catch Regulation on Anglers' Species Preferences in Florida Bay. Dept of Natural Resources. 05/01/91-06/01/92. $9,181 Mulkey W. D. The Status of Education in the Rural South. Mississippi State University. 07/01/90- 12/31/91. $13,500 Polopolus L. C. Agricultural Prevailing Wage Surveys for Florida: Survey Design Interviewer Guidelines. Dept of Labor & Employment Sec. 05/09/89-09/30/92. $83,359 Reynolds J. E. Urbanization & the Loss of Agricultural Land & Wetlands in the Southeast. U. S. Dept of Agriculture. 08/01/90-07/31/92. $40,000 Simpson J. R. Global Assessment of Animal Agriculture Africa Study. Winrock Enterprises. 10/01/90- 12/31/90. $18,243 Spreen T. H. A Model of the World Market for Fresh & Processed Grapefruit. Dept of Citrus. 08/01/90- 12/31/91. $15,000 Spreen T. H. Marketing of Florida Citrus Products. Dept of Citrus. 08/01/90-06/30/91. $20,200 Taylor T. G. Economic Analysis of Export Specialty Crop Production & Marketing in Puerto Rico. U. S. Dept of Agriculture. 07/01/91-06/30/92. $28,625 Thunberg E. M. Economic Analysis of Hard Clam Aquaculture Systems Under Price & Yield Risk. U. S. Dept of Commerce. 04/01/91-03/31/92. $24,157 Vansickle J. J. Agents Cooperative Exchange Agent Interest Survey. Agents Cooperative Exchange. 03/15/91-06/15/91. $2,500 Ward R. W. Proposal for Continued Evaluation of the Beef Checkoff Programs. National Cattlemen's Association. 04/01/91-12/01/92. $45,000 4 Other UF or Cooperating Agency 1 Resident Instruction 2 Research 3 Extension Food Science and Human Nutrition 55 FOOD SCIENCE AND HUMAN NUTRITION 359 Food Science Building / Gainesville, FL 32611 Telephone: 904-392-1991 Fax: 904-392-8594 1,2,3 JESSE F. GREGORY III Acting Chm. & Prof., Food Chemistry 1,2 ESAM M. AHMED Prof., Food Science 1,2 LYNN B. BAILEY Prof., Human Nutr. 1,2 MURAT BALABAN Asst. Prof., Food Engineer- ing & Processing 1,2,3 ROBERT P. BATES Prof., Food Proc. 1,2 PEGGY L. BORUM Assoc. Prof., Human Nutr. 1,2 ROSS D. BROWN JR Assoc. Prof., Biochem 1,2 MICHAEL D. CORBETT Prof., Biochemical Toxicology 1,2 ROBERT J. COUSINS Eminent Scholar Nutri- tional Biochemistry 1,2 LAURA K. GUYER Asst. Prof., Dietetics & Nutrition 1,2 JAMES A. LINDSAY Assoc. Prof., Food Microbiology 1,2 MAURICE R. MARSHALL JR Prof., Seafood Chemistry Biochemistry 2,3 RICHARD F. MATTHEWS Prof., Food Science 1,2 HUGH A. MOYE Prof., Anal. Chem Prof. Anal. Chem. 3 OLAF N. NESHEIM Prof., Pesticide Information Corrdinator 1,2 SEAN F. OKEEFE Asst. Prof., Food Chemistry 3 W. STEVEN OTWELL Prof., Extension Seafood Spec. 1,2 SUSAN S. PERCIVAL Asst. Prof., Nutrition And Immunity 2 RALPH C. ROBBINS Assoc. Prof., Human Nutr. 1,2 GARY E. RODRICK Assoc. Prof., Food Microbiology 23 RONALD H. SCHMIDT Prof., Dairy Technologist 1,2 RACHEL M. SHIREMAN Prof., Biochemistry 1,2 CHARLES A. SIMS Asst. Prof., Enology 1,2 HARRY S. SITREN Assoc. Prof., Nutritional Biochemistry 2 NEAL P. THOMPSON Assoc. Dean & Prof. 1,2 CHENG-I WEI Prof., Food Toxicol. 1,23 WILLIS B. WHEELER Prof., Toxicology CRIS Projects: FOS02151 Enzyme Treatment for Conversion of Polysaccharides in Biomass to Methane R. D. Brown M. Gritzali FOS02265 Mycotoxins of Corn and Other Feed Grains C. Wei FOS02287 Zinc Metabolism and Function in Animal Systems R. J. Cousins FOS02354 Southern Region Leader Laboratory Coopera- tive Research for Minor or Specialty Use Animal Drugs W. B. Wheeler H. A. Moye FOS02440 Improving Efficiency and Product Quality During Citrus Processing R. F. Matthews FOS02544 Biochemical Mechanisms for the Conversion of Arylamine-Type Chemicals into Genotoxic Metabolites M. D. Corbett B. R. Corbett FOS02577 Biochemical and Residual Properties of Pesticides H. A. Moye W. B. Wheeler FOS02644 Improving Grape Processing and Utilization C. A. Sims FOS02687 Quality and Safety of Seafood Products M. R. Marshall C. I. Wei FOS02698 Nutritional Properties of Pyridoxine-Beta- Glucoside J. F. Gregory J. P. Toth L. B. Bailey FOS02724 Southern Region Program to Clear Pest Control Agents for Minor Uses W. B. Wheeler C. W. Meister FOS02765 Pesticide Information Activities in Florida in Support of NAPIAP O. N. Nesheim FOS02773 Stable-Isotopic and Radioisotopic Investiga- tion of Folate Bioavailability J. F. Gregory L. B. Bailey 2 Research 3 Extension 4 Other UF or Cooperating Agency -- 1 Resident Instruction 56 Food Science and Human Nutrition FOS02799 Optimization of Peel Dewatering Processes in Citrus By-product Manufacture M. O. Balaban FOS02841 Pathogenicity of Estuarine and Marine Vibrio vulnificus in Mice H. S. Sitren G. E. Rodrick FOS02857 Improving Nutritional Adequacy of Total Parenteral Nutrition Formulas H. S. Sitren C. I. Wei FOS02876 Folate Utilization and Nutrient Interaction in Human Subjects L. B. Bailey FOS03036 Fatty Acid Effects on Lipoprotein Metabolism in Cultured Human Hepatoma Cells R. M. Shireman FOS03081 Zinc Requirement as Estimated by Erythro- cyte Metallothionein L. B. Bailey R. J. Cousins FOS03107 Activation of Bacterial Toxins in Sudden Infant Death J. A. Lindsay Refereed Publications: R-00977 Ahmed, E. M.; Chang, F. C.; Balaban, M. O. and Arreola, A. G. Extrusion Cooking of Sweet Potato Roots. Journal of Food Quality 14:229-239. 1991 R-00120 An, H.; Klein, P. A.; Kao, K. J.; Marshall, M. R.; Otwell, W. S. and Wei, C. I. Development of Monoclonal Antibody for Rock Shrimp Identification using Enzyme-Linked Immunosorbent Assay. Agricultural and Food Chemistry 38:2094-2100. 1990 R-01481 Balaban, M. O.; Arreola, A. G.; Marshall, M. R.; Peplow, A.; Wei, C. I. and Comell, J. A. Inactivation of Pectinesterase in Orange Juice by Supercritical C02. Journal of Food Science 56:743-747. 1991 R-00894 Banks, M. A. and Gregory, J. F. Intestinal B- Glucosidase Activity is not Induced by Chronic Ingestion of Pyridoxine-B-D-Glucoside in Rats. Nutritional Research 11:169-175. 1991 R-00069 Bhandari, S. D.; Gregory, J. F.; Renuart, D. R. and Merritt, A. M. Properties of Pteroylpolyglutamate Hydrolase in Pancreatic Juice of the Pig. Journal of Nutrition. p. 467-475. 1990 R-00336 Chen, J. S.; Rolle, R. S.; Marshall, M. R. and Wei, C. I. Comparison of Phenoloxidase Activity from Florida Spiny Lobster and Western Australian Lobster. Journal of Food Science 56:154-157. 1991 R-00073 Corbett, M. D.; Corbett, B. R.; Quintana, S. I.; Hannothiaux, M. H.; Wei, C. I.; Owusu-Yaw, J. D. and Lim, L. O. Microsomal N-Hydroxylation of the Glycolamide 2-(Glycolylamino) Fluorene to Give the Glycolylhydroxamic Acid 2- Aminofluorene. Chemical Research in Toxicology 3:296-300. 1990 R-00791 Corbett, M. D.; Hannothiaux, M. H.; Corbett, B. R. and Quintana, S. J. A Comparison of the HL-60 Cell Line and Human Granulocytes to Effect the Bioactivation of Arylamines and Related Xenobiotics. The Binding of 2- Aminofluorene to Nucleic Acids as Result of the Respiratory Burst. Chemico-Biological Interactions 78:33-54. 1991 R-00089 Gregory, J. F. Improved Synthesis of [3', 5'-2H2] Folic Acid: Extent and Specifity of Deuterium Labeling. Journal of Agricultural and Food Chemistry 38:1073-1076. 1990 R-00071 Gregory, J. F. and Leatham, K. Vitamin B6 Activity of 6-Hydroxpyridoxine. Journal of Food Science 55:1143-1146. 1990 R-01004 Gregory, J. F. and Sartain, D. B. Improved Chromatographic Determination of Free and Glycosylated Forms of Vitamin B6 in Foods. Journal of Agricultural and Food Chemistry 39:899-905. 1991 R-00070 Gregory, J. F.; Bailey, L. B.; Toth, J. P. and Cerda, J. J. Stable Isotopic Methods for Assessment of Folate Bioavailability. American Journal of Clinical Nutrition 51:212-215. 1990 R-00897 Gregory, J. F.; Bhandari, S. D.; Bailey, L. B.; Toth, J. P.; Baumgartner, T. B. and Cerda, J. J. Relative Bioavailability of Deuterium-Labeled Monoglutamyl and Hexaglutamyl Folates in Human Subjects. American Journal of Clinical Nutrition 53:736-740. 1991 R-00896 Gregory, J. F.; Engelhardt, R.; Bhandari, S. D.; Sartain, D. B. and Gustafson, S. K. Adequacy of Extraction Techniques for Determination of Folate in Foods and other Biological Materials. Journal of Food Composition and Analysis 3:134-144. 1990 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Food Science and Human Nutrition 57 R-00552 Gregory, J. F.; Trumbo, P. R.; Bailey, L. B.; Toth, J. P.; Baumgartner, T. G. and Cerda, J. J. Bioavailability of Pyridoxine-5'-B-D-Glucoside Determined in Humans by Stable-Isotopic Methods. Journal of Nutrition 121:177-186. 199'1 R-00938 Guizani, N.; Rolle, R. S.; Marshall, M. R. and Wei, C. I. Isolation, Purification and Characterization of a Trypsin from the Pyloric Ceca of Mullet (Mugil cephalus). Comparative Biochemistry and Physiology 98B:517-521. 1991 R-00774 Henney, L.; Ahmed, E. M.; George, D. E.; Kao, K. J. and Sitren, H. S. Tolerance to Long-Term Feeding of Isolated Peanut Lectin in the Rat: Evidence for a Trophic Effect on the Small Intestines. Journal of Nutritional Science and Vitaminology 36:599-607. 1990 R-00211 Huang, T. S.; Chen, J. S.; Marshall, M. R. and Wei, C. I. Quantification of Shrimp in Shrimp- Surimi Mixtures Using Urea Gel Isoelectric Focusing Technique. Journal of Food Science 55:1206-1209. 1990 R-00952 Koffi, E. K.; Sims, C. A. and Bates, R. P. Viscosity Reduction and Prevention of Browning in the Preparation of Clarified Banana Juice. Journal of Food Quality 14:209-218. 1991 R-01123 Krohn, B. M. and Lindsay, J. A. Purification and Characterization of a Thermostable- Glucosidase (endo-oligo-1,4-glucosidase) from a Bacillus subtilis High Temperature Growth Transformant. Current Microbiology 22:273-278. 1991 R-00874 Lim, L. O. and Meister, C. W. Deposition of Esfenvalerate on Brassica Vegetables. Bulletin of Environmental Contamination and Toxicology 46:810-814. 1991 R-00043 Lim, L. 0.; Scherer, S. J.; Shuler, K. D. and Toth, J. P. Photodegradation of Cyromazine and Melamine Under Environmental Conditions. Journal of Agricultural and Food Chemistry 38:860-864. 1990 R-00312 Lindsay, J. A.; Barton, L. E.; Leinart, A. S. and Pankratz, H. S. The Effect of Sporulation Temperature on Sporal Characteristics of Bacillus Subtilis A. Current Microbiology 21:75-79. 1990 R-00245 Owusu-Yaw, J.; Toth, J.; Wheeler, W. B. and Wei, C. I. Mutagenicity and Identification of the Reaction Products of Aqueous Chlorine or Chlorine Dioxide with L-Tryptophan. Journal of Food Science 55:1210-1216. 1990 R-00754 Owusu-Yaw, J.; Wheeler, W. B. and Wei, C. I. Genotoxicity Studies of the Reaction of Chlorine or Chlorine Dioxide with L- Tryptophan. Toxicology Letters 56:213-227. 1991 R-00694 Rolle, R. S.; Guizani, N.; Chen, J. S.; Marshall, M. R.; Young, J. S. and Wei, C. I. Isolation, Purification and Characterization of Phenoloxidase Isoforms from Taiwanese Tiger Shrimp (Penaeus monodon). Journal of Food Biochemistry 15:17-32. 1991 R-00691 Rolle, R. S.; Marshall, M. R.; Wei, C. I. and Chen, J. S. Phenoloxidase Forms of the Florida Spiny Lobster: Immunological and Spectropolarimetric Characterization. Comparative Biochemistry and Physiology 97:483-489. 1990 R-00487 Samarajeewa, U.; Sen, A. C.; Fernando, S. Y.; Ahmed, E. M. and Wei, C. I. Inactivation of Aflatoxin B1 in Cor Meal, Copra Meal and Peanuts by Chlorine Gas Treatment. Food and Chemical Toxicology 29:41-45. 1991 R-00759 Samarajeewa, U.; Wei, C. I.; Huang, T. S. and Marshall, M. R. Application of Immunoassay in the Food Industry. Critical Review in Food Science 29:403-434. 1991 R-00913 Seymour, T. A.; Preston, J. F.; Wicker, L.; Lindsay, J. A. and Marshall, M. R. Purification and Properties of Pectinesterases of Marsh White Grapefruit Pulp. Journal of Agricultural and Food Chemistry 39:1080-1085. 1991 R-00912 Seymour, T. A.; Preston, J. F.; Wicker, L.; Lindsay, J. A. and Marshall, M. R. Stability of Pectinesterases of Marsh White Grapefruit Pulp. Journal of Agricultural and Food Chemistry 39:1075-1079. 1991 R-00130 Sims, C. A.; Bates, R. P. and Johnson, R. P. Comparison of Pre- and Post-Fermentation Ultrafiltration on the Characteristics of Sulfited and Non-Sulfited White Wines. American Journal of Enology and Viticulture 41:182-185. 1990 R-00776 Sims, C. A.; Bates, R. P. and Mortensen, J. A. Effects of Most Polyphenoloxidase Activity and Timing of Sulfite Addition on the Color and Quality of White Wines. 2 Research 3 Extension 4 Other UF or Cooperating Agency -- I 1 Resident Instruction 58 Food Science and Human Nutrition American Journal of Enology and Viticulture 42:128-132. 1991 R-00661 Sims, C. A.; Johnson, R. P. and Bates, R. P. Effects of Mechanical Pruning on the Yield and Quality of Muscadine Grapes. American Journal of Enology and Viticulture 41:273-276. 1991 R-00110 Trumbo, P. R. and Gregory, J. F. Hydrolysis of Pyridoxine-5' -B-D-glucoside by a Broad Specificity B-Glucosidase. Proceedings of the Society for Experimental Biology 195:240-246. 1990 R-00911 Vaddi, G. K. and Wei, C. I. Effect of Ammonium Metavanadate on the Peritoneal Macrophage Lysosomal Enzymes. Journal of Toxicology and Environmental Health 33:65-78. 1991 R-00838 Van Der Kelen, D. and Lindsay, J. A. Isolation, Purification and Partial Characterization of a New Extracellular Cytotoxin from a Clinical Strain of Listeria monocytogenes serotype 4b, and an Avirulent, Non Hemolytic Variant ATCC 15313 Serotype. Journal of Food Safety 11:81-98. 1990 R-00895 Wei, C. I.; Balaban, M. O.; Femando, S. Y. and Peplow, A. J. Bacterial Effect of High Pressure C02 Treatment on Foods Spiked with Listeria or Salmonella. Journal of Food Protection 54:189-193. 1991 R-01119 Wei, C. I.; Huang, T. S.; Chen, J. S. and Marshall, M. R. Production of Kojic Acid by Aspergillus Candidus in Three Culture Media. Journal of Food Protection 54:546-548. 1990 Non-Refereed Publications: N-00332 Bates, R. P.; Sims, C. A.; Gray, D. J.; Mortensen, J. A. and Andersen, P. C. The Florida Grape Industry: What's Ahead in the 90's. Florida State Horticultural Society 103:302-306. 1990 N-00306 Ericson, A. P.; Matthews, R. F.; Teixeira, A. A. and Moye, H. A. Recovery of Grapefruit Oil from Processing Waste Water Using SDVB Resins. Florida State Horticultural Society 103:280-282. 1990 Research Grants: Bailey L. B. Zinc Requirements as Estimated By Erythrocyte Metallothionein. U S Dept of Agriculture. 09/01/90-08/31/92. $50,493 Balaban M. O. Canning of Florida Gizzard Shed. Dept of Natural Resources. 07/23/90-07/24/90. $1,250 Bates R. P. Quality & Processing Characteristics of Chufa- Based Horchata. Killian, Samuel T. & Phyllis Z. 10/01/90-09/30/91. $3,000 Borum P. R. Camitine Studies. Miscellaneous Donors. 05/16/86-05/15/94. $1088 Borum P. R. Procysteine Piglet Program. Clintec Nutrition Company. 03/14/90-07/31/91. $120,000 Borum P. R. Evaluation of Formula Containing Black Currant Seed Oil in Colostrum Deprived Piglets. Carnation Company. 04/01/91-03/31/92. $67,106 Brown R. D. Viscosity Measurements for Cellulase Compositions. Burns Doane Swecker & Mathis. 02/22/91-05/13/91. $1,110 Corbett M. D. Metabolic Activation of Arylamines in Leukocytes. National Institutes of Health. 06/01/88- 06/30/92. $95,410 Gregory J. F. The Nutritional Properties of Pyridoxine- Beta-Glucoside. National Institutes of Health. 08/01/88-07/31/91. $72,448 Lim L. O. Analysis of Chlorothalonil in Tropical Fruits. Fermenta Assoc. 08/02/89-08/03/90. $5,250 Lindsay J. A. Activation of Bacterial Toxins in Sudden Infant Death. National Institutes of Health. 08/01/89-07/31/92. $35,873 Lindsay J. A. Bacillus subtilis Spore Production. Pure-Pak. 06/14/90-09/14/90. $4,500 Lindsay J. A. Activation of Bacterial Toxins in Sudden Infant Death. National Institutes of Health. 08/01/89-07/31/92. $20,010 Marshall M. R. Proteases on the Inactivation of Pectinesterase in Single Strength Orange Juice. Tropicana Products. 07/01/90-05/31/91. $54,000 Moye H. A. Supercritical Fluid Extraction of Pesticides from Chicken Fat. Campbell Inst for Res & Tech. 08/01/90-07/31/91. $34,248 Otwell W. S. Seafood Quality Codes & Imports. Southeastern Fisheries Associ. 08/01/90-06/30/91. $20,577 Otwell W. S. Use & Monitoring of Seafood Processing Aids Which Influence Water Content Yield. Gulf & S. Atlantic Fish Dev Fdnt. 08/01/90-04/30/92. $70,004 Percival S. S. Functional Biochemistry of Copper: A Molecular Approach to Assessing Copper Status. Int Life Sciences Institute. 01/01/91-12/31/92. $30,000 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Food Science and Human Nutrition 59 Rodrick G. E. Evaluation of Lactic Acid Treatment Cryogenic Freezing & Depuration. U S Dept of Commerce. 04/01/91-03/31/92. $24,012 Sims C. A. Optimization of Carrot Juice Production. Natural Carotene Products. 09/17/90-11/30/90. $3,800 Wheeler W. B. Southern Region Program to Clear Pest Control Agents for Minor Uses. U S Dept of Agriculture. 03/01/88-09/30/92. $560,800 Wheeler W. B. Title IV of the Intergovernmental Personnel Act Reassignment. U S Dept of Agriculture. 06/14/91-05/31/92. $54,402 2 Research 3 Extension 4 Other UF or Cooperating Agency -- 1 Resident Instruction 60 4-H and Other Youth Programs 4-H AND OTHER YOUTH PROGRAMS 111 Rolfs Hall / Gainesville, FL 32611 Telephone: 904-392-1744 Fax: 904-392-5184 3 SUSANNE G. FISHER Asst. Dean & Chmn., 4-H & Other Youth Prog. 2,3 LIONEL J. BEAULIEU Prof., Ext. Rural Sociologist 2,3 MYRLA J. CANTRELL Asst. Prof., Ext. 4-H Youth Spec. 2 ANN K. MULLIS Asst. In Rural Development CRIS Projects: 4-H02795 The Changing Structure of Labor Markets in Nonmetropolitan Areas L. J. Beaulieu M. J. Cantrell 4-H03046 Community Change and Persistence: A Restudy of the Rural Life Study Series L. J. Beaulieu Research Grants: Fisher S. G. 4-H Camp Ocala Kitchen Supervisor. Fl 4-H Foundation. 07/01/91-06/30/92. $20,611 1 Resident Instruction 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 4 Other UF or Cooperating Agency 2 Research 3 Extension Fruit Crops 61 FRUIT CROPS 1137 Fifield Hall / Gainesville, FL 32611 Telephone: 904-392-4711 Fax: 904-392-5653 1,23 LARRY K. JACKSON Chair & Prof., Citrus Spec. 1,2 ROBERT H. BIGGS Prof., Biochem. 1,2 KENNETH C. CLINE Assoc. Prof., Biochem. & Molec. Biol. 3 TIMOTHY E. CROCKER Prof., Decid. Fruit Spec. 1,2 REBECCA L. DARNELL Asst. Prof., Decid. Fruits 1,2 FREDERICK S. DAVIES Prof., Env. Phys. 2 JOHN F. GERBER Prof., Fruit Crops 1,2 KAREN E. KOCH Assoc. Prof., Plant Phys. 1,2 PAUL M. LYRENE Prof., Decid. Fruit Brdg. And Genet. 1,23 J D. MARTSOLFJR Prof., Climatology 1,2 GLORIA A. MOORE Assoc. Prof., Fruit Brdg. & Genet 1,2 WAYNE B. SHERMAN Prof., Decid. Fruit Brdg. 2,3 JEFFREY G. WILLIAMSON Asst. Prof., Citrus Spec. CRIS Projects: FRC02529 Environmental and Biological Stresses of Rootstock in Peach Tree Longevity W. B. Sherman P. C. Anderson P. M. Lyrene FRC02542 The Role of Glycoproteins in Regulating Stress in Plants R. H. Biggs FRC02571 In Vitro Derived Genetic Variability in Citrus G. A. Moore FRC02603 Low Energy Management Systems for Young Citrus Tree Care F. S. Davies J. J. Ferguson FRC02661 Regulation of Photosynthetic Processes K. E. Koch FRC02669 Breeding, Cytogenetics, and Evolution of Florida Blueberries P. M. Lyrene FRC02688 Application of Integrated Agrotechnology for Crop Production and Environmental Quality Protection J. D. Martsolf FRC02778 Freeze Damage and Protection of Fruit and Nut Crops L. R. Parsons FRC02783 Chilling and Photoperiod Effects on Carbo- hydrate Allocation and Crop Yield in Blueberry R. L. Damell FRC02816 Deciduous Fruit and Nut Crops Cultivar Development W. B. Sherman G. A. Moore P. M. Lyrene FRC02834 Selection, Anatomy, and Physiology of Flood-Tolerant Mango Cultivars for Florida and the Caribbean Basin F. S. Davies FRC03011 Efficient Citrus Nursery Propagation Practices J. G. Williamson FRC03024 Cellular and Molecular Genetics of Citrus and Other Perennial Fruit Crops G. A. Moore K. C. Cline FRC03091 Research on Exotic Citrus Diseases (Citrus Bacterial Spot, Citrus Canker and Citrus Tristeza Virus) K. C. Cline G. A. Moore E. Hiebert Refereed Publications: R-00387 Anderson, C. M.; Castle, W. S. and Moore, G. A. Isozymic Identification of Zygotic Seedlings in Swingle Citrumelo Nursery and Field Populations. American Society for Horticultural Science 116:322-326. 1991 R-00007 Damell, R. L. and Davies, F. S. Chilling Accumulation, Budbreak, and Fruit Set of Young Rabbiteye Blueberry. HortScience 25-6:635-638. 1990 R-00722 Koch, K. E. and Avigne, W. T. Post-Phloem, Non-Vascular Transfer in Citrus: Kinetics, Metabolism, and Sugar Gradients. Plant Physiology 93:1405-1416. 1990 2 Research 3 Extension 4 Other UF or Cooperating Agency - 1 Resident Instruction 62 Fruit Crops R-01099 Payan, L. A. and Cline, K. C. A Stromal Factor Maintains the Solubility and Insertion Competence of an Imported Thylakoid Membrane Protein. Journal of Cell Biology 112:603-613. 1991 R-01107 Sekiya, M. E.; Lawrence, S. D.; McCaffery, M. and Cline, K. C. Molecular Cloning and Nucleotide Sequencing of the Coat Protein Gene of Citrus Tristeza Virus. Journal of General Virology 72:1013-1020. 1991 R-00966 Sherman, W. B. and Lyrene, P. M. Deciduous Fruit Cultivar Development in Florida. HortScience 26:2-91. 1991 R-00924 Sherman, W. B.; Lyrene, P. M. and Gmitter, F. G. Sunblaze Nectarine. HortScience 26:428-429. 1991 R-00923 Sherman, W. B.; Lyrene, P. M. and Sharpe, R. H. Flordaguard Peach Rootstock. HortScience 26:427-428. 1991 R-00057 Topp, B. and Sherman, W. B. Sources of Bacterial Spot Resistance in Japanese-Type Plum Cultivars. Fruit Varieties Journal 44-1:32-35. 1990 R-00537 Willis, L.; Davies, F. S. and Graetz, D. A. Fertigation and Growth of Young 'Hamlin' Orange Trees in Florida. HortScience 26:106-109. 1991 R-00794 Yen, C. R. and Koch, K. E. Developmental Changes in Translocation and Localization of 14C-Assimilates in Grapefruit: Photosynthesis and Dark C02 Fixation by Leaves and Fruit. Journal of the American Society for Horticultural Science 115:67. 1990 R-01034 Yuan, J.; Cline, K. C. and Theg, S. M. Cryopreservation of Chloroplasts and Thylakoids for Studies of Protein Import and Integration. Plant Physiology 95:1259-1264. 1991 Non-Refereed Publications: N-00280 Davies, F. S. and Maurer, M. A. Fertilization of Freeze-Damaged 'Hamlin' Orange Trees. Florida State Horticultural Society 103:9-12. 1990 N-00337 Ferguson, J. J.; Davies, F. S. and Bulger, J. M. Fertigation and Growth of Young 'Sunburst' Tangerine Trees. Florida State Horticultural Society 103:8-9. 1990 N-00339 Lyrene, P. M. Percent Fruit Set in Blueberry. Florida State Horticultural Society 103:313-316. 1990 N-00374 Martsolf, J. D. Cold Protection Strategies. Florida State Horticultural Society 103:72-78. 1990 N-00341 Norden, D. E. Non-Woven Polypropylene Fabric Row Cover for Freeze Protection in Blueberries. Florida State Horticultural Society 103:316-317. 1990 N-00262 Sherman, W. B.; Topp, B. L. and Lyrene, P. M. Non-melting Flesh for Fresh Market Peaches. Florida State Horticultural Society Proceedings 103:293-294. 1990 N-00301 Topp, B. L. and Sherman, W. B. Potential for Low-Chill Japanese Plums in Florida. Florida State Horticultural Society 103:294-298. 1990 N-00325 Williamson, J. G.; Castle, W. S. and Koch, K. E. Bud Forcing Method Affects Early Scion Development of Container-Grown 'Hamlin' Nursery Trees. Florida State Horticultural Society 103:321-323. 1990 N-00281 Willis, L. E.; Davies, F. S. and Graetz, D. A. Fertilization, Nitrogen Leaching and Growth of Young 'Hamlin' Orange Trees on Two Rootstocks. Florida State Horticultural Society 103:30-37. 1990 Research Grants: Damell R. L. Fruit Sugars & Bird Predation the Basis for Genetic Variability in Blueberry Sugars. U S Dept of Agriculture. 06/03/91-09/30/91. $6,000 Ferguson J. J. Controlled-release Fertilizers & the Growth of Young Citrus Trees. Exxon Chemical Canada. 03/21/91-12/31/92. $7,560 Koch K. E. Immunohistochemical Localization of Sucrose Synthase in Rapidly Expanding Cells. U S Dept of Agriculture. 03/18/91-06/17/91. $6,500 Koch K. E. Physiological Role of Sugar Modulated Gene Expression in Higher Plants. National Science Foundation. 06/01/89-05/31/92. $70,000 Lyrene P. M. Evaluation of Native Rabbiteye & Tetraploid High Bush Blueberry Selections Form Florida. U S Dept of Agriculture. 06/01/90-05/31/94. $9,000 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction Fruit Crops 63 MartsolfJ. D. Satellite Images Document Florida Freezes of Recent Decade. Nasa. 05/01/91-04/30/92. $1,418 MartsolfJ. D. Linking the FSU & UF Goes Satelite Earth Stations Initiation of a Cooperative. NASA. 04/05/91-04/04/92. $4,149 MartsolfJ. D. FSGC/ISRP 1991-92 Matching Funds for Dr. Martsolf. UF Div of Sponsored Research. 04/05/91-04/04/92. $4,925 2 Research 3 Extension 4 Other UF or Cooperating Agency - I Resident Instruction 64 Home Economics HOME ECONOMICS 3001 McCarty Hall / Gainesville, FL 32611 Telephone: 904-392-1778 Fax: 904-392-3226 3 DORIS A. TICHENOR Dir. & Prof. 23 SUZANNA D. SMITH Asst. Prof., Human Development 2,3 MARK L. TAMPLIN Assoc. Prof., Food Safety Spec. CRIS Projects: HEC02583 Residential Environmental Management and Mildew Problems M. V. Peart HEC02584 Interrelationships Among Financial Situa- tion, Stress, and Food Intake of Farm Families in Florida N. I. Torres L. B. Bobroff HEC02731 A Survey of Female Labor Force Activities in Selected Industries S. D. Smith M. E. Swisher Refereed Publications: R-00352 Bailie, S. T. and Peart, M. V. Determinants of Women's Roles in Home Maintenance. Home Economics Research Journal 19:120-131. 1990 R-01365 Cook, G. and Peart, M. V. The Moisture/Sick Building Connection: Issues, Relationships and Solutions. Nineth Annual International Energy Efficiency Building Conference. p. C9-C23. 1991 R-00507 Peart, V. and Cook, G. Sick Buildings: Moisture and Mildew, Correlation and Prevention. Annual Meeting Associated Schools of Construction. p. 203-212. 1990 R-00506 Peart, V. and Johannsen, R. Critical HVAC Concern: The Dehumidification Gap. 1990 International Appliance Technical Conference 41:51-61. 1990 R-00493 Smith, S.; Swisher, M. E. and Shehan, C. Women in Agribusiness: Using Research to Identify Extension Audiences. Journal of Extension 28:24-26. 1990 Popular Articles: T-00024 Peart, M. V. and Baillie, S. Women and DIY: A Neglected Market. DIY Retailing 158:83-86. 1990 Research Grants: Bobroff L. B. Evaluation of a Low-Cost Worksite Cancer Risk Reduction Program. Amer Dietetic Association. 10/01/90-05/30/92. $4,968 Bolton E. B. Family Community Leadership. Fl Extension Homemakers Coun. 09/22/90-08/31/91. $1,200 Smith S. D. Coping Strategies of Fishing Families in Response Perceived Impacts. U S Dept of Commerce. 04/01/91-03/31/92. $25,535 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Microbiology and Cell Science 65 MICROBIOLOGY AND CELL SCIENCE 3103 McCarty Hall / Gainesville, FL 32611 Telephone: 904-392-1906 Fax: 904-392-8479 1,2 EDWARD M. HOFFMANN Chmn. & Prof., Immunology & Complement 1,2 PHILLIP M. ACHEY Prof., Radiation Biology 1,2 HENRY C. ALDRICH Prof., Biological Ultrastructure 1,2 FRANCIS C. DAVIS JR Assoc. Prof., Biochem. of Development 1,2 DENNIS E. DUGGAN Assoc. Prof., Microbial Genetics 1,2 SAMUEL R. FARRAH Assoc. Prof., Environmen- tal Microbiology 1,2 JOHN E. GANDER Prof., Biochemistry of Fungal Glycoprotein 1,2 WILLIAM B. GURLEY Assoc. Prof., Plant Molecular Biology 1,2 LONNIE O. INGRAM Prof., Microbial & Cellular Physiology 1,2 ROY A. JENSEN Prof., Biochemical Genetics In Microorganisms & Plants 2 HOWARD M. JOHNSON Grad. Res. Prof., Immunology, Lyphokines & Interferon 1,2 JAMES R. MILAM Asst. Chmn. & Assoc. In, Microbial Ecology 1,2 JAMES F. PRESTON III Prof., Structure Function of Plant Protein Toxins 1,2 EDWARD P. PREVIC Assoc. Prof., Microbial Pathogens of Plant Pests 2 ROBERT R. SCHMIDT Grad. Res. Prof., Gene- enzyme Regulation, Metabolic Control 1,2 KEELNATHAM T. SHANMUGAM Prof., Bacterial Physiology 1,2 PAUL H. SMITH Prof., Microbiology, Fermentation 1,2 STEVEN G. ZAM III Assoc. Prof., Parasitology And Protozoology CRIS Projects: MCS02150 Cell Walls of Acetate-fermenting Methanogenic Organisms J. E. Gander L. O. Ingram J. F. Preston MCS02152 Improved Anaerobic Digestion of Biomass to Form Methane P. H. Smith MCS02171 Ultrastructural Analyses of Methanogenic and Plant Biomass Species H. C. Aldrich MCS02434 Fungal Glycopeptide Biosynthesis J. E. Gander MCS02488 Host-Independent Endospore Production from a Bacterial Pathogen of Root-Knot Nematodes E. P. Previc MCS02530 Translational Regulation of mRNAs Synthe- sized During Oogenesis F. C. Davis MCS02556 Irradiated DNA Expression in Mammalian and Insect Cells P. M. Achey MCS02614 Molecular Biology of Hydrogen Metabolism in Fermentative Bacteria K. T. Shanmugam MCS02653 Gene Amplification to Improve Nitrogen Assimilation and Biomass Yield of Napiergrass R. R. Schmidt MCS02714 Transcriptional Regulation of Plant Heat Shock Genes W. B. Gurley MCS02715 Cis- and Trans-acting Components of T-DNA Promoter Function W. B. Gurley MCS02746 The Role of Complement in the Brucellocidal Activity of Bovine Serum E. M. Hoffmann MCS02769 Removal and Recovery of Human Enteric Viruses from Water using Modified Solids S. R. Farrah MCS02770 Increasing Microbial Production of Alcohol by Genetic Engineering L. O. Ingram MCS02786 Genetic Engineering of Alcohol Production in E. Coli L. O. Ingram MCS02789 Degradation of Structural Polymers: Depoly- merization of Plant Cell Wall Polyuronides J. F. Preston 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 66 Microbiology and Cell Science MCS02792 Enhancing Beneficial Microorganisms in the Rhizosphere J. R. Milam S. L. Albrecht MCS02852 Gene-enzyme Relationships in Somatic Cells and their Organismal Derivatives R. A. Jensen MCS02879 Nuclear Gene Encoding Two NH3-Inducible Chloroplastic Isoenzymes R. R. Schmidt MCS02881 Production of Monoclonal Antibodies to Viral, Bacterial and Protozoan Antigens S. G. Zam MCS03013 Synthetic Peptide Technology for Structure/ Function Studies of Hormones and Cytokines H. M. Johnson MCS03060 Genetic Engineering of Bacteria for Ethanol Production L. O. Ingram Refereed Publications: R-00325 Ahmad, S.; Weisborg, W. G. and Jensen, R. A. Evolution of Aromatic Amino Acid Biosynthesis and its Application to the Fine-Tuned Phylogenetic Positioning of Enteric Bacteria. Journal of Bacteriology 172:1051-1061. 1990 R-01082 Beall, D. S.; Ohta, K. and Ingram, L. O. Parametric Studies of Ethanol Production from Xylose and Other Sugars by Recombinant Escherichia coli. Biotechnology and Bioengineering 38:296-303. 1991 R-00880 Bonner, C. A.; Fisher, R. S.; Ahmad, S. and Jensen, R. A. Remnants of an Ancient Pathway to L-Phenylalanine and L-Tryosine in Enteric Bacteria Evolutionary Implications and Biotechnological Impact. Applied and Environmental Microbiology 56:3741-3747. 1990 R-01049 Brown, B. J. and Preston, III, J. F. L-Guluronan- Specific Alginate Lyase from a Marine Bacterium Associated with Sargassum. Carbohydrate Research 211:91-102. 1991 R-00954 Brown, B. J.; Preston, J. F. and Ingram, L. O. Cloning of Alginate Lyase Gene (alxM) and Expression in Escherichia coli. Applied and Environmental Microbiology 57:1870-1872. 1991 R-00184 Cock, J. M.; Roof, L. L.; Bascomb, N. F.; Gehrket, C. W.; Kuo, K. C. and Schmidt, R. R. Restriction Enzyme Analysis and Cloning of High Molecular Weight Genomic-DNA Isolated from Chlorella sorokiniana (Chlorophyta). Journal of Phycology 26:361-367. 1990 R-01000 Czarnecka, E.; Fox, P. C. and Gurley, W. B. In Vitro Interaction of Nuclear Proteins with the Promoter of Soybean Heat Shock Gene Gmhspl7.5E. Plant Physiology 94:935-943. 1990 R-00755 Francis, K.; Patel, P.; Wendt, J. C. and Shanmugam, K. T. Purification and Characterization of Two Forms of Hydrogenase Isoenzume 1 from Escherichia coli. Journal of Bacteriology 172:5750-5757. 1990 R-00272 Hendry, A. T.; Bhatnager, R. K.; Shanmugam, K. T. and Jensen, R. A. Exploitation of the Broad Specificity of the Membrane-Bound Isozyme of Lactate Dehydrogenase for Direct Selection of Null Mutants in Neisseria gonorrhoeae. General Microbiology 136:45-50. 1990 R-00143 Ingram, L. O.; Alterthum, F.; Ohta, K. and Beall, D. S. Genetic Engineering of Escherichia colia and Other Enterobacteria for Ethanol Production. Developments in Industrial Microbiology 31:21-30. 1990 R-00469 Jarpe, M. A. and Johnson, H. M. Structure of an Epitope in an Immunodominant Region of the Interferon-Y Molecule that is Involved in Receptor Interaction. Journal of Interferon Research 10:243-252. 1990 R-01037 Jarpe, M. A. and Johnson, H. M. Topology of Receptor Binding Domains of Mouse IFN Gamma. The Journal of Immunology 145:3304-3309. 1990 R-00398 Jensen, R. A. and Ahmad, S. Nested Gene Fusions are Markers of a Hierarchical Series of Phylogenetic Branchpoints. Trends in Ecology and Evolution 5:219-224. 1990 R-00177 Keshave, K. F.; Yomano, L.; An, H. and Ingram, L. O. Cloning of the Zymomonas mobilis Structural Gene Encoding Alcohol Dehydrogenase I (adhA): Sequence Comparison and Expression in Escherichia coli. Journal of Bacteriology 172:2491-2497. 1990 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Microbiology and Cell Science 67 R-00386 Lee, J. H.; Wendt, J. C. and Shanmugam, K. T. Identification of a New Gene, molR, Essential for Utilization of Molybdate by Escherichia coli. Journal of Bacteriology 172:2079-2087. 1990 R-01566 Magazine, H. I. and Johnson, H. M. Characterization of a Synthetic Peptide Corresponding to a Receptor Binding Domain of Mouse Interferon Gamma. Biochemistry 30:5784-5789. 1991 R-00442 Maupin, J. A. and Shanmugam, K. T. Genetic Regulation of Formate Hydrogenlyase of Escherichia coli: Role offhlA Gene Product as a Transcriptional Activator for a new Regulatory Gene, fhlB. Journal of Bacteriology 172:4798-4806. 1990 R-00955 Ohta, K.; Beall, D. S.; Mejia, J. P.; Shanmugam, K. T. and Ingram, L. O. Genetic Improvement of Escherichia coli for Ethanol Production: Chromosomal Integration of Zymomonas mobilis Genes Encoding Pyruvate Decarboxylase and Alcohol Dehydrogenase II. Applied and Environmental Microbiology 57:893-900. 1991 R-00823 Pontzer, C. H.; Ott, T. L.; Bazer, F. W. and Johnson, H. M. Localization of an Antiviral Site on the Pregnancy Recognition Hormone, Ovine Trophoblast Protein-One. National Academy of Sciences 87:5945-5949. 1990 R-01172 Pontzer, C. H.; Russell, J. K. and Johnson, H. M. Structural Basis for Differential Binding of Staphyloccal Enterotoxin A and Toxic Shock Syndrome Toxin 1 to Class II Major Histocompatibility Molecules. Proceedings of the National Academy of Sciences, USA 88:125-128. 1991 R-00268 Preston, D. R.; Bitton, G. and Farrah, S. R. Enhancing the Infectivity of Enteroviruses In Vitro by Pretreating Host Cell Monolayers with the Cationic Polymer Polyethylenimine. Applied and Environmental Microbiology 56,1:295-297. 1990 R-00942 Preston, III, J. F.; Rice, J. D.; Chow, M. C. and Brown, B. J. Microbial Strategies for the Depolymerization of Plant and Algal Polyuronates. Enzymes in Biomass Conversion 199:450-466. 1991 R-01336 Shields, P. A.; Farrah, S. R. and Shah, D. 0. The Correlation of Hydrophile-Lipophile Balance of Filters with Virus Desorption. Journal of Environmental Science and Health A26:711-719. 1991 R-01081 Utt, E. A.; Eddy, C. K.; Keshav, K. F. and Ingram, L. O. Sequencing and Expression of the Butyrivibrio fibrisolvens xylB Gene Encoding a Novel Bifunctional Protein with B-D-Xylosidase and a-L-Arabinofuranqsidase Activities. Applied and Environmental Microbiology 57:1227-1234. 1991 R-00882 Xia, T. and Jensen, R. A. A Single Cyclohexadienyl Dehydrogenase Specifies the Prephenate Dehydrogenase and Arogenate Dehydrogenase Components of the Dual Pathways to L Tyrosine in Pseudomonas aeruginosa. Journal of Biological Chemistry 15:20033-36. 1990 R-01341 Xiasen, T.; Ahmad, S.; Zhao, G. and Jensen, R. A. A Single Cyclohexadienyl Dehydratase Specifies the Prephenate Dehydratase and Arogenate Dehyratase Components of One of Two Independent Pathways to L-Phenylalanine in Erwinia herbicola. Archives of Biochemistry and Biophysics 286:461-465. 1991 Research Grants: Farrah S. R. Virus Monitoring of Chlorinated Effluents & Well Water at the Kanapaha Wastewater. City of Gainesville. 11/19/90-11/18/93. $20,160 Farrah S. R. Collaborative Test Comparing Positively & Negatively Charged Filters. University of North Carolina. 01/01/91-12/31/91. $3,000 Gurley W. B. Transcriptional Regulation of Plant Heat Shock Genes. National Institutes of Health. 08/29/88-07/31/93. $97,211 Gurley W. B. Characterization of the Dual Promoters of the Maize Gene Encoding Alcohol Dehydrogenas. Lubrizol Genetics Inc. 07/01/90-05/31/91. $37,500 Gurley W. B. Cis & Trans-Acting Components of T-DNA Promoter Function. National Institutes of Health. 04/01/88-03/31/93. $116,797 Hoffmann E. M. Enzyme Targeted Antimicrobials for Plant Disease Control. UF Research Foundation, Inc. 07/02/90-07/02/93. $3960 Ingram L. O. Development of Ethanologenic E. coli Expressing the Complete Ethanol Pathway From Z. mobili. U S Dept of Energy. 09/01/90-09/30/91. $20,000 Ingram L. 0. Genetic Engineering of Bacteria for Ethanol Production. U S Dept of Agriculture. 09/01/90- 08/31/93. $120,000 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction 68 Microbiology and Cell Science Ingram L. O. Ethanologenic Enzymes of Zymomonas mobilis. U S Dept of Energy. 07/01/88-06/30/91. $77,894 Ingram L. O. Ethanol Production. UF Research Foundation, Inc. 08/03/90-08/03/99. $93,750 Jensen R. A. Biosynthesis & Regulation of Aromatics in Pseudomonas. National Institutes of Health. 07/01/86-06/30/93. $126,784 Jensen R. A. Gene-Enzyme Relationships in Somatic Cells & Their Organismal Derivatives in Higher. U S Dept of Energy. 08/01/86-07/31/91. $99,586 Jensen R. A. Biochemical-Pathway Diversity in Archaebacteria. U S Navy. 02/01/88-06/30/90. $25,000 Johnson H. M. Regulatory & Antitumor Effects of Gamma Interferon. National Institutes of Health. 07/01/88-05/31/93. $173,648 Johnson H. M. Structure/Function Studies of Pregnancy Recognition Hormone. National Institutes of Health. 09/30/89-11/30/94. $195,261 Johnson H. M. Staphylococcal Enterotoxins: Potent Inducers of BRMS. National Institutes of Health. 03/01/88-02/28/93. $161,012 Johnson H. M. Regulatory & Antitumor Effects of Gamma Interferon. National Institutes of Health. 07/01/88-05/31/93. $192,165 Schmidt R. R Gap Funding for the Department of Microbiology & Cell Science. UF Div of Sponsored Research. 12/14/90-09/30/91. $10,000 Wilkie A. C. Performance/Emissions Characteristics of Biogas in GMC Trucks. Fl Inst of Technology. 01/02/91-12/31/91. $15,000 Establishment and Epiphyllous Plantlet Regeneration of T- 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Plant Pathology 69 PLANT PATHOLOGY 1453 Fifleld Hall / Gainesville, FL 32611 Telephone: 904-392-3631 Fax: 904-392-6532 1,23 GEORGE N. AGRIOS Chair & Prof. 1,2 JERRY A. BARTZ Assoc. Prof., Post Harvest Diseases 2 RICHARD D. BERGER Prof., Plant Disease Epidemiology 2 RAGHAVAN CHARUDATTAN Prof., Biologi- cal Control of Weeds 1,2 DEAN W. GABRIEL Assoc. Prof., Bacterial/plant Interactions 2 ERNEST HIEBERT Prof., Virology 2,3 THOMAS E. FREEMAN Prof., Turf Diseases 2 JAMES W. KIMBROUGH Prof., Mycology 1,2 HAROLD C. KISTLER Asst. Prof., Physiology of Host-parasite Interactions 2,3 THOMAS A. KUCHAREK Prof., Field Crop & Vegetable Diseases 1,2 DAVID J. MITCHELL Prof., Bio. of Soil-borne Pathogens 23 CHARLES L. NIBLETT Prof., Biochemistry 2 DAN E. PURCIFULL Prof., Virology 2 LAURENCE H. PURDY JR Prof., Diseases of Sugarcane & Cacao 1,2 DANIEL A. ROBERTS Prof., Alfalfa Diseases, Virology 23 GARY W. SIMONE Assoc. Prof., Extension Ornamental & Veg. Crops Diseases 1,2 ROBERT E. STALL Prof., Bac. Plant Pathogens 1,2 FRANCIS W. ZETTLER Prof., Virology CRIS Projects: PLP02472 Nitrogen Fixation in Acid Soils by Forage Legumes: Enhanced by VA Mycorrhizae N. C. Schenck PLP02481 Biological Control of Fusarium Wilt of Watermelons F. N. Martin PLP02527 Biological Control and Dynamical Models of Species Interactions R. D. Berger PLP02546 Genetic Improvement of Small Grains H. H. Luke PLP02609 Avirulence Gene Expression, Localization and Molecular Specificity D. W. Gabriel PLP02637 Etiology, Epidemoilogy, and Control of Disease of Alfalfa D. A. Roberts PLP02652 Citrus Canker Research on the Detection, Characterization, Biology and Control of the Disease and its Agent R. E. Stall D. W. Gabriel PLP02663 Characterization, Etiology, Epidemiology, and Control of Virus and Virus-Like Diseases of Citrus C. L. Niblett PLP02674 Control of Postharvest Decay of Fruits and Vegetables J. A. Bartz PLP02706 Soilbome Disease in Agroecosystems of South Florida D. J. Mitchell PLP02709 Genetics of Pathogenicity of Xanthomonas campestris pv. vesicatoria R. E. Stall PLP02711 Diseases of Turfgrasses T. E. Freeman G. W. Simone R. D. Berger PLP02758 Relationships of Xanthomonas Species R. E. Stall PLP02771 Soybean Breeding R. D. Berger PLP02798 Phylogenetic Relationships of Pezizales (cup- fungi) and Tuberales (truffles) J. W. Kimbrough PLP02806 Curation of the Mycological Herbarium of the University of Florida J. W. Kimbrough PLP02832 Controlling Virus Diseases of Tropical Fruits and Edible Aroids C. L. Niblett J. Bird PLP02833 Development of Potyviral-Resistant Cucurb- its for the Caribbean Region E. Hiebert D. E. Purcifull 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 70 Plant Pathology PLP02844 Management of Diseases of Field Crops in North Florida T. A. Kucharek F. M. Shokes PLP02851 Identification, Epidemiology and Control of Viruses InfectingOmamentals, Root Crops and Legumes F. W. Zettler PLP02871 Developmental Regulation of Sucrose Synthase Genes in Maize P. S. Chourey PLP02992 Discovery and Development of Plant Patho- gens for Biological Control of Weeds R. Charudattan T. E. Freeman PLP03000 Molecular Approaches for Characterization and Control of Cucurbit Potyviruses E. Heibert D. E. Purcifull PLP03006 Biological Control of Selected Arthropods, Pests and Weeds through Introduction of Natural Enemies R. Charudattan PLP03008 Heritability of Resistance to Witches' Broom in Theobroma cacao L. H. Purdy R. J. Schnell PLP03053 Management of Rhizosphere Dynamics to Control Soilborne Pathogens F. N. Martin PLP03057 Control Measures for Viruses and Other Pathogens of Taro, Cocoyam, and Other Field-grown Aroids F. W. Zettler E. Hiebert D. E. Purcifull PLP03062 Detection and Characterization of Strains of Xanthomonas campestris pv. vesicatoria R. E. Stall PLP03065 Genetic Exchange in the Genus Pythium F. N. Martin PLP03071 Chromosome Structure of Plant Pathogenic Fungi H. C. Kistler PLP03073 Characterization of Waves of Plant Disease in the Early Stages of Epidemics R. D. Berger D. A. Roberts PLP03091 Research on Exotic Citrus Diseases (Citrus Bacterial Spot, Citrus Canker and Citrus Tristeza Virus) D. W. Gabriel C. L. Niblett R. E. Stall Refereed Publications: R-00391 Almeida, R. T. and Schenck, N. C. A Revision of the Genus Sclerocystis (Glomaceae, Endogonales). Mycologia 82:703-714. 1990 R-00807 Baker, C. A.; Lecoq, H. and Purcifull, D. E. Serological and Biological Variability among Papaya Ringpost Virus Type-W Isolates in Florida. Phytopathology 81:722-728. 1991 R-00637 Bartz, J. A. Relation between Resistance of Tomato Fruit to Infiltrating Water by Suspended Postharvest Pathogens. Plant Disease 75:152-155. 1991 R-00644 Benny, G. L. Gilbertellaceae, A New Family of the Mucorales (Zygomycetes). Mycologia 83:150-157. 1991 R-00463 Bowers, J. H. and Mitchell, D. J. The Effect of Soil-Water Matric Potential and Periodic Flooding on Mortality of Pepper Caused by \ Phytophthora capsici. Phytopathology 80:1447-1450. 1990 R-00538 Bowers, J. H. and Mitchell, D. J. The Relationship Between the Level of Inoculum of Phytophthora capsici and Mortality of Pepper. Phytopathology 81:178-184. 1991 R-00689 Chourey, P. S.; Chen, Y. C. and Miller, M. E. Early Cell Degeneration of Developing Endosperm is Unique to the Shrunken Mutation in Maize. Maydica 36:141-146. 1991 R-01383 Chourey, P. S.; Taliercio, E. W. and Kane, E. J. Tissue-Specific Expression and Anaerobically Induced Post Transcriptional Modulation of Sucrose in Sorghum Bicolor M. Synthase Genes. Plant Physiology 96:485-490. 1991 R-00837 Frias, G. A.; Purdy, L. H. and Schmidt, R. A. Infection Biology of Crinipellis pemiciosa on Vegetative Flushes of Cacao. Plant Disease 75:552- 556. 1991 R-00401 Kimbrough, J.W. Ultrastructural Observations on Helvellaceae (Pezizales:Ascomycetes). V. Septal Structures in Gyromitra. Mycological Research 95:421-426. 1991 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction Plant Pathology 71 R-00166 Larkin, R. P.; Hopkins, D. L. and Martin, F. N. Vegetative Compatibility within Fusarium oxysporum f. sp. niveum and its Relationship to Virulence, Aggressiveness, and Race. Canadian Journal of Microbiology 36:352-358. 1990 R-00654 Li, R. H.; Zettler, F. W.; Elliot, M. S.; Petersen, M. A.; Still, P. A. and Baker, C. A. A Strain of Peanut Mottle Seed-Borne in Bambarra Groundnut. Plant Disease 74:130-133. 1990 R-00909 Martin, F. N. Selection of DNA Probes Specific for Isolate Identification of Two Pythium spp.. Phytopathology 81:742-746. 1991 R-00199 Minsavage, G. V.; Canteros, R. I. and Stall, R. E. Plasmid-Mediated Resistance to Stretptomycinn in Xanthomonas campestris pv. vesicatoria. Phytopathology 80:719-723. 1990 R-01074 Niblett, C. L.; Zagula, K. R.; Calvert, L. A.; Kendall, T. L.; Stark, D. M.; Smith, C. E.; BEACHY, R. N. and LOMMEL, S. A. cDNA Cloning and Nucleotide Sequence of the Wheat Streak Mosaic Virus Capsid Protein Gene. General Virology 72:499-504. 1991 R-00092 Perez, Y. and Schenck, N. C. Occurrence of Branched Sporophores in Scutellospora Gregaria. Mycologia 82:256-260. 1990 R-00095 Smith, C. and Bartz, J. A. Variation in the Pathogenicity and Aggressiveness of Strains of Erwinia Carotovora Subsp. Carotovora Isolated from Different Hosts. Plant Disease 74:505-5-0. 1990 R-01224 Swamp, S.; DeFeyter, R.; Brlansky, R. H. and Gabriel, D. W. A Host-Specific Virulence Locus from Xanthomonas citris Enables Strains from Several Pathovars ofX. campestris to Induce Canker-Like Lesions on Citrus. Phytopathology 81:802-809. 1991 R-00543 Zettler, F. W.; Ko, N. J.; Wisler, G. C.; Elliot, M. S. and Wong, S. M. Viruses of Orchids. Plant Disease 74:621-626. 1990 R-00814 Zhoa, G. S.; Baltensperger, D. D.; Hiebert, E.; Purcifull, D. E. and Edwardson, J. R. Purification, Serology and In Vitro Translation of an Alyceclover Isolate of Blackeye Cowpea Mosaic Virus. Plant Disease 75:254-257. 1991 R-00815 Zhoa, G. S.; Baltensperger, D. D.; Purcifull, D. E.; Christie, R. C. and Hiebert, E. Host Range, Cytology and Transmission of an Alyceclover Isolate of Blackeye Cowpea Mosaic Virus. Plant Disease 75:251-253. 1991 Non-Refereed Publications: N-00201 Gabriel, D. W. and Rolfe, B. G. Working Models of Specific Recognition in Plant- Microbe Interactions. Annual Review of Phytopathology 28365-391. 1990 Popular Articles: T-00043 Freeman, T. E. and Simone, G. W. Turfgrass Disease Identification and Control. Southern Turf Management 1:22. 1990 Research Grants: Berger R. D. Characterization of Waves of Plant Disease in the Early Stages of Epidemics. U S Dept of Agriculture. 08/01/90-07/31/92. $80,000 Charudattan R. Evaluation of Pathogens Attacking Groundsel Bush Baccharis Halimifolia L., in Florida. Queensland Department of Lands. 04/01/90- 06/30/91. $26,567 Gabriel D. W. Hybridization Probes for Diagnosis of Xanthomonads Pathogenic on Citrus Common Bean. Bard. 08/01/90-07/31/93. $51,250 Gabriel D. W. Evaluating Brassicas as a Cloning Source for Resistance Genes Against Xanthomonas. U S Dept of Agriculture. 09/29/89-09/28/91. $19,000 Hiebert E. Development of Monoclonal Antibodies for Serological Differentiation of Bean Golden. Int Development Coop Agency. 08/21/90-08/20/94. $123,506 Hiebert E. Molecular Approaches for Characterizations & Control of Cucurbit Pocyviruses. Bard. 02/14/89- 02/14/92. $27,100 Hiebert E. Development of Potyviral-Resistant Cucurbits for the Caribbean Region. U S Dept of Agriculture. 07/01/89-06/30/92. $42,744 Kistler H. C. Chromosome Structure of Plant Pathogenic Fungi. U S Dept of Agriculture. 09/01/90-08/31/92. $100,000 Martin F. N. Genetic Exchange in the Fungal Genus Pythium. U S Dept of Agriculture. 08/01/90- 07/31/92. $80,000 Niblett C. L. Controlling Virus Diseases of Tropical Fruits & Edible Aroids. U S Dept of Agriculture. 07/01/89- 06/30/91. $116300 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction 72 Plant Pathology Purcifull D. E. Utilization of Antisera for Diagnosis & Detection of Plant Viruses. UF Research Foundation, Inc. 02/11/91-02/11/93. $2,000 Stall R. E. Identification of Bacteria by Fatty Acid Profiles. UF Research Foundation, Inc. 06/28/91- 06/28/99. $1,310 Zettler F. W. Development of Control Measures for Viruses & Other Pathogens of Taro Cocoyam &. U S Dept of Agriculture. 07/01/90-06/30/91. $87,200 4 Other UF or Cooperating Agency 1 Resident Instruction 2 Research 3 Extension Poultry Science 73 POULTRY SCIENCE Mehrhof Building / Gainesville, FL 32611 Telephone: 904-392-1931 Fax: 904-392-3047 1,23 ROGER P. NATZKE Acting Chair & Prof. 2,3 ROBERT B. CHRISTMAS Prof., Supervisor, Fla Poultry Eval Ctr, Chipley 1,2,3 BOBBY L. DAMRON Prof., Poultry Nutrition 2,3 CARROLL R. DOUGLAS Prof., Ext. Poultryman 1,2 ROBERT H. HARMS Grad. Res. Prof., Poultry Nutr. 1,2 DOUGLAS M. JANKY Prof., Poultry Prod. Tech. 1,2,3 F. B. MATHER Assoc. Prof., Poutry Physiol. 1,2 RICHARD D. MILES JR Prof., Poultry Nutrition And Mgt. 1,2,3 MICHAEL D. OUART Assoc. Prof., Extension Poultryman 1,2,3 DON R. SLOAN Assoc. Prof. 1,2,3 HENRY R. WILSON Prof., Poultry Physiol. CRIS Projects: PSE02419 Factors Affecting Reproductive Efficiency in Poultry Breeder Flocks H. R. Wilson R. H. Harms F. B. Mather PSE02491 Nutritional Programs for Turkeys R. H. Harms H. R. Wilson R. D. Miles PSE02579 Development of New Processes and Tech- nologies for the Processing of Poultry Products D. M. Janky PSE02595 Quality and Functional Properties of Eggs and Further Processed Egg Products D. M. Janky PSE02784 Production, Hatchability and Product Quality of Bobwhite H. R. Wilson R. D. Miles D. M. Janky PSE02995 Systems for Providing and Controlling Interior Environments for Poultry and Livestock D. R. Sloan F. B. Mather PSE02998 Influence of Water Quality, Feed and Water Additives upon Poultry Performance B. L. Damron PSE03020 Evaluation of the Amino Acid Requirement of Commercial Laying Hens and Broiler Breeder Hens R. H. Harms D. R. Sloan Refereed Publications: R-00221 Bootwala, S. M. and Harms, R. H. Reassessment of Riboflavin Requirement for Single Comb White Leghorn Pullets from 0 to 6 Weeks of Age Fed Corn-Soybean Meal Diets and its Subsequent Effect on Sexual Maturity and Egg Production. British Poultry Science 31:779-784. 1990 R-00574 Bootwalla, S. M. and Harms, R. H. Reassessment of Pantothenic Acid Requirement for Single Comb White Leghorn Pullets from 0 to 6 Weeks of Age and its Subsequent Effect on Sexual Maturity. Poultry Science. p. 80-84. 1990 R-00824 Bootwalla, S. M. and Miles, R. D. Nutrient Requirement of Breeder Males: A Review. Feedstuffs 62:16-18,194. 1991 R-00407 Damron, B. L. and Flunker, L. K. Supplementation of Broiler Drinking Water with Liquid Ammonium Polyphosphate. Poultry Science 32.377-386. 1991 R-00516 Damron, B. L. and Sloan, D. R. Research Note: Energy Supplementation of Laying Hen Feed and Drinking Water. Poultry Science 69:1806-1808. 1990 R-01138 Damron, B. L.; Wilson, H. R. and Fell, R. V. Growth and Performance of Broiler Breeders Fed Bacitracin Methylene Disalicylate and Zinc Bacitracin. Poultry Science 70:1487-1492. 1991 R-00513 Fattori, T. R.; Hildebrand, P. E. and Wilson, H. R. Response of Broiler Breeder Females to Feed Restriction Below Recommended Levels. 2. Economics Analysis. Poultry Science Journal 70:489-498. 1991 R-00514 Fattori, T. R.; Wilson, H. R.; Harms, R. H. and Miles, R. D. Response of Broiler Breeder Females to Feed Restriction Below Recommended Levels. I. Growth and Reproductive Performance. Poultry Science Journal 70:26-36. 1990 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 74 Poultry Science R-00086 Fethiere, R.; Miles, R. D. and Harms, R. H. Influence of Ethacal Feed Component on Laying Hens Fed Different Phosphorus Levels. Poultry Science 69:2195-2198. 1990 R-00557 Flunker, L. K.; Damron, B. L. and Wilson, H. R. Research Note: Feeding Various Levels of Ground Sesbania macrocarpa Seed to Bobwhite Quail. Poultry Science 70:658-660. 1991 R-00778 Harms, R. H. Specific Gravity of Eggs and Egg Shell Weight from Commercial Laying and Broiler Breeders in Relation to Time of Oviposition. Poultry Science 70:1099-1104. 1991 R-00630 Harms, R. H. The Influence of Removing Salt, Sodium or Chloride from Diet of Commercial Layers. Poultry Science 70333-336. 1991 R-00615 Nelson, D. S.; Janky, D. M. and Harms, R. H. Research Note: A Lack of Fluctuation in Xanthophyll Blood Level in Laying Hens at Night and Absence of Pigmentation Rings in the Yolk. Poultry Science 69:2235-2236. 1990 R-00614 Nelson, D. S.; Janky, D. M. and Harms, R. H. Research Note: A Short Assay for Use in Pigmentation Evaluation of Egg Yolks. Poultry Science 69:1610-1613. 1990 R-00371 Ouart, M. D. and Wilson, H. R. Comparison of Infra-Red Lamp vs Quartz Bar Radiant Brooders for Bobwhite Quail. Poultry Science 69:2082-2085. 1990 R-00474 Ruiz, N. and Harms, R. H. Research Note: The Lack of Response of Broiler Chickens to Supplemental Niacin When Fed a Corn- Soybean Meal Diet from 3 to 7 Weeks of Age. Poultry Science 69:2231-2234. 1990 R-00274 Sabri, H. M.; Wilcox, C. J.; Wilson, H. R. and Harms, R. H. Measuring Genetic Variation in Metabolizable Energy Intake of Laying Hens. Poultry Science 70:222-228. 1991 R-00275 Sabri, H. M.; Wilson, H. R.; Wilcox, C. J. and Harms, R. H. Comparison of Energy Utilization Among Six Lines of White Leghorns. Poultry Science 70:229-233. 1991 R-00771 Sams, A. R. and Janky, D. M. Characterization of Rigor Mortis Development in Four Broiler Muscles. Poultry Science 70:1003-1009. 1991 R-00515 Wilson, H.R. Interrelationships Among Egg Size, Chick Size, Posthatching Growth and Hatachability. World's Poultry Science Journal 47:5-20. 1991 R-00444 Wilson, H. R. and Keeling, L. Effect of Time of Feeding on Oviposition Time and Production Parameters in Broiler Breeders. Poultry Science 70:254-259. 1991 Popular Articles: T-00113 Harms, R. H. "Primary Feather Drop Syndrome" A Serious Problem in Broiler Hens. Feedstuffs 62:12, 15. 1990 T-00060 Ouart, M. D.; Damron, B. L.; Mather, F. B. and Marion, J. E. Another Approach: Fasting Diet Stressed Broilers. Poultry Digest JUNE.32-36. 1990 T-00064 Wilson, H. R. Temperature, Egg Orientation and Egg Turning Effects on the Avian Embryo. Poultry Digest 49:12, 14. 1990 Research Grants: Miles R. D. An Evaluation of the Probiotic Pelletmate in Commercial Laying Hen Diets. Chr. Hansen's Biosystems. 09/24/90-02/24/91. $8,000 Miles R. D. An Evaluation of the Probiotics Yea-Sacc & Lacto-Sacc in Commercial Laying Hen Diets. Alltech Biotechnology Center. 09/24/90-02/24/91. $9,000 Sloan D. R. Evaluation of MIJI CCP for Improvement of Eggshell Quality. Coors Biotech Products Company. 12/19/90-01/16/91. $7,000 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Soil Science 75 SOIL SCIENCE 106 Newell Hall / Gainesville, FL 32611 Telephone: 904-392-1803 Fax: 904-392-3902 1,23 GEORGE A. O'CONNOR Chair & Prof. 1,3 RANDALL B. BROWN Prof., Ext. Soils Spec. Land Use 1,2 MARY E. COLLINS Assoc. Prof., Pedology Genesis & Classification & Grad. Coord. 1,2 NICHOLAS B. COMERFORD Assoc. Prof., Soil Fertility Forest Soils 2 JAMES M. DAVISDON Dean & Prof. 1,2 DONALD A. GRAETZ Prof., Environmental Chemistry 2 LUTHER C. HAMMOND Prof., Soil Physics Water Relations 2,3 EDWARD A. HANLON Assoc. Prof., Soil Fertility & Mgt. 1,2 WILLIE G. HARRIS Assoc. Prof., Soil Genesis & Mineralogy 2,3 ARTHUR G. HORNSBY Prof., Soil Physics, Soil Water Mgt. 1,2 DAVID H. HUBBELL Prof., Soil Microbiology Rhizosphere 1,2 CLIFFORD T. JOHNSTON Assoc. Prof., Soil Physical Chemistry 3 GERALD KIDDER Prof., Soil Test Interpretations 1,2 ROBERT S. MANSELL Prof., Soil Physics Water And Nutrient Movement 1,2,3 BRIAN L. MCNEAL Prof., Soil Chemistry 1,2 DONALD L. MYHRE Prof., Soil Chemistry Soil Plant Water Relations 1,2 PETER NKEDI-KIZZA Asst. Prof., Soil Physics/ management 2 LI TSE OU Assoc. Res. Scientist, Microbiology 1,2 SURESH RAO Prof., Soil Physics Soil Water Relations 1,2 KONDA R. REDDY Prof., Soil Biochemistry 1,2 ROY D. RHUE Assoc. Prof., Soil Physical Chemistry 1,2,3 JERRY B. SARTAIN Prof., Soil Fertility Turf & Ornamentals 1,2 JIMMY J. STREET Assoc. Prof., Soil Chemistry Micronutrients 1,2 DAVID M. SYLVIA Assoc. Prof., Soil Microbiol- ogy Mycorrhizae CRIS Projects: SOS02502 Biochemical Transformations in Oxic and Anoxic Soils and Sediments D. A. Graetz K. R. Reddy P. S. Rao SOS02503 Fertilization and Nutrition of Southern Pine N. B. Comerford E. L. Stone SOS02524 The Differential Response of Citrus Rootstocks to Reactive Aluminum Levels D. L. Myhre SOS02539 Environmental and Genotypic Control of Assimilate Allocation in Crops L. C. Hammond SOS02548 Soil Test Methodology and Crop Response Correlations E. A. Hanlon J. B. Sartain R. D. Rhue G. J. Hochmuth R. D. Sartain SOS02555 Influence of Soil Fertility on the Growth and Quality of Turfgrasses J. B. Sartain SOS02557 Mineralogy of Selected Soils in the Southern Region W. G. Harris M. E. Collins R. D. Rhue SOS02651 Characterization, Classification, and Map- ping of Florida Soils M. E. Collins R. B. Brown W. G. Harris L. C. Hammond SOS02688 Application of Integrated Agrotechnology for Crop Production and Environmental Quality Protection G. Kidder P.S. Rao B. L. McNeal P. Nkedi-Kizza A. G. Hornsby L. C. Hammond SOS02718 Crop, Soil and Water Management and Economics of Rice Grown on Organic Soils of South Florida K. R. Reddy SOS02781 Variability of Soil Properties and its Effect on Water Quality and Soil Management P. Nkedi-Kizza A. G. Hornsby L. C. Hammond 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 76 Soil Sciences SOS02792 Enhancing Beneficial Microorganisms in the Rhizosphere D. H. Hubbell D. M. Sylvia SOS02848 Pesticides and Other Organics in Soils and Their Potential for Groundwater Contamination P. S. Rao A. G. Hornsby C. T. Johnston P. Nkedi-Kizza L.T. Ou SOS02867 Transport of Multiple Cations During Water Flow in Acid Mineral Soils R. S. Mansell R. D. Rhue P. Nkedi-Kizza SOS02997 Chemistry and Bioavailability of Waste Constituents in Soils B. L. McNeal SOS03037 Degradation of Telone II and Fenamiphos in Subsoils and Groundwater, and by Microor- ganisms L.T. Ou SOS03075 Environmental and Genotypic Control of Assimilate Allocation in Grain Crops L. C. Hammond SOS03080 Restoration of Altered Lands E. A. Hanlon SOS03092 Chemical Mechanisms of Toxic Organic Solute Interactions with Soil Constituents C. T. Johnston SOS03097 Mycorrhizal Root Competition in Forest Soils D. M. Sylvia N. B. Comerford Refereed Publications: R-00060 Anamosa, P. R.; Nkedi-Kizza, P.; Blue, W. G. and Sartain, J. B. Water Movement Through an Aggregated, Gravelly Oxisol from Cameroon. Geoderma 46:263-281. 1990 R-00102 Brusseau, M. L. and Rao, P. S. Modeling Solute Transport in Structured Soils: A Review. Geoderma 46:169-192. 1990 R-00979 Brusseau, M. L. and Rao, P. S. The Influence of Sorbate Molecular Structure on Nonequilibrium Sorption of Organic Chemicals. Environmental Science and Technology 25:1501-1506. 1991 R-00834 Brusseau, M. L.; Jessup, R. E. and Rao, P. S. Nonequilibrium Sorption of Organic Chemicals: Elucidation of Rate-Limiting Mechanisms. Environmental Science and Technology 25:134-142. 1990 R-00353 Brusseau, M. L.; Jessup, R. E. and Rao, P. S. Sorption Kinetics of Organic Chemicals: Evaluation of Gas-Purge and Miscible- Displacement Techniques. Environmental Science and Technology 24:727-735. 1990 R-00821 Brusseau, M. L.; Wood, A. L. and Rao, P. S. The Influence of Organic Cosolvents on the Sorption Kinetics of Hydrophobic Organic Chemicals. Environmental Science and Technology 25:903-910. 1991 R-01180 Burgoon, P. S.; DeBusk, T. A.; Reddy, K. R. and Koopman, B. Vegetated Submerged Beds with Artificial Substrates I: BOD Removal. Journal of Environmental Engineering 117:394-407. 1991 R-01182 Burgoon, P. S.; DeBusk, T. A.; Reddy, K. R. and Koopman, B. Vegetated Submerged Beds with Artificial Substrates. II. N and P. Removal. Journal of Environmental Engineering 117:408-424. 1991 R-00986 Cline, P. V.; Delfino, J. J. and Rao, P. S. Partitioning of Aromatic Constituents into Water from Gasoline and Other Complex Solvent Mixtures. Environmental Science and Technology 25:914-920. 1991 R-00288 Comerford, N. B.; Harris, W. G. and Lucas, D. Release of Non-Exchangeable Potassium from a Highly-Weathered, Forested Quartzipsamment. Soil Science Society of America 54:1421-1426. 1990 R-00599 Easterwood, G. W. and Sartain, J. B. Organic Coatings on P Fertilizers: Influence on Plant Growth on a Florida Ultisol. Soil and Crop Science Society of Florida 49:1-5. 1990 R-00044 Fisher, H. M. and Stone, E. L. Active Potassium Uptake by Slash Pine Roots from 02 Depleted Solutions. Forest Science 36:582-596. 1990 R-00059 Fisher, H. M. and Stone, E. L. Air-Conducting Porosity in Slash Pine Roots from Saturated Soils. Forest Science 36:18-33. 1990 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Soil Science 77 R-00381 Fox, T. R.; Comerford, N. B. and McFee, W. W. Phosphorus and Aluminum Release Caused by Low-Molecular-Weight Organic Acids. Soil Science Society of America 54:1763-1767. 1990 R-00289 Fox, T. R.; Comerford, N. B. and McFee, W. W. The Kinetics of Phosphorus Release as Influenced by Oxalate and Formate. Soil Science Society of America 54:1441-1447. 1990 R-00484 Hung, L. L.; O'Keefe, D. M. and Sylvia, D. M. Use of Hydrogel as a Sticking Agent and Carrier for Vesicular-Arbuscular Mycorrhizal Fungi. Mycological Research 95:427-429. 1991 R-00710 Johnston, C. T.; Agnew, S. F. and Bish, D. I. Polarized Single-Crystal Fourier Transform Infrared Microscopy Study of Ouray Dickite and Keokuk Kaolinite. Clays and Clay Minerals 38:573-583. 1990 R-01243 Johnston, C. T.; Tipton, T.; Stone, D. A.; Erickson, C. and Trabue, S. L. Chemisorption of p-Dimethoxybenzene on Copper- Montmorillonite. Langmuir, Journal of Colloids and Surfaces 7:289-296. 1991 R-00744 Lee, L. S.; Rao, P. S. and Brusseau, M. L. Nonequilibrium Sorption and Transport of Neutral and Ionized Chlorophenols. Environmental Science and Technology 25:722-729. 1991 R-00250 Lee, L. S.; Rao, P. S.; Nkedi-Kizza, P. and Delfino, J. J. Influence of Solvent and Sorbent Characteristics on Distribution of Pentachlorophenol in Octanol-Water and Soil- Water Systems. Environmental Science and Technology 24:654-661. 1990 R-00471 Lin, Z. and Myhre, D. L. Supernatant Solutions Containing Various Levels of Aluminum Phytotoxicity and Similar Concentrations of Phosphorus for Aluminum Studies Studies. Juomal of Plant Nutrition 14:75-91. 1991 R-00828 Liu, K. H.; Mansell, R. S. and Rhue, R. D. Cation Removal During Constant-Flux Infiltration of Acid Solutions into Columns of Air-Dry Soil. Soil Science Society of America 54:1747-1783. 1990 R-00571 Mansell, R. S.; Bloom, S. A. and Aylmore, L. A. Simulating Cation Transport During Unsteady, Water-Unsaturated Flow in a Sandy Soil. Soil Science 150.730-744. 1990 R-00524 Million, J. B.; Sartain, J. B.; Gonzalez, R. X. and Carrier, III, W. D. Radium-226 and CA in Selected Crops Grown on Mixtures of Sand Tailings and Waste Phosphatic Clays. Proc. Naturally Occurring Radionuclides in Agricultural Products. p. 78-79. 1991 R-00347 Moorhead, K. K. and Reddy, K. R. Carbon and Nitrogen Transformation in Wastewater During Treatment with Hydrocotyle umbellata. Aquatic Botany 37:153-161. 1990 R-00751 Moorhead, K. K.; Graetz, D. A. and Reddy, K. R. Treatment of Anaerobic Digester Effluents Using Water Hyacinth. Journal of Biological Wastes 34:91-99. 1990 R-01474 Myhre, D. L. and Shih, S. F. Aerial Color Infrared Photography for Assessment of Water Stress in Citrus. International Conference on Computer Applications in Water Resources 2:983-990. 1991 R-01366 Myhre, D. L.; Martin, H. W. and Nemes, S. Yield 226 Ra Concentration, and Juice Quality of Oranges in Groves Treated with Physophogypsum and Mined Gypsum. Third International Symposium on Physophogypsum 3:11-40. 1990 R-00802 Ou, L. T. Interactives of Microorganisms and Soil During Fenamiphos Degradation. Soil Science Society of America 55:716-722. 1991 R-00695 Pennell, K. D.; Hornsby, A. G.; Jessup, R. E. and Rao, P. S. Evaluation of Five Simulation Models for Predicting Aldicarb and Bromide Behavior under Field Conditions. Water Resources Research 26:2679-2693. 1990 R-01220 Pennell, K. D.; Rhue, R. D. and Harris, W. G. The Effect of Heat Treatments on the Total Charge and Exchangeable Cations of Ca-, Na-, and Li- Saturated Kaolin. Clays and Clay Minerals 39:306-315. 1991 R-01595 Pinal, R.; Lee, L. S. and Rao, P. S. Prediction of the Solubility of Hydrophobic Compounds in Nonideal Solvent Mixtures. Chemosphere 22:939-951. 1991 R-00246 Pinal, R.; Rao, P. S.; Lee, L. S.; Cline, P. V. and Yalkowsky, S. H. Cosolvency of Partially- Miscible Organic Solvents on the Solubility of Hydrophobic Organic Chemicals. Environmental Science and Technology 24-5:639-647. 1990 2 Research 3 Extension 4 Other UF or Cooperating Agency - 1 Resident Instruction 78 Soil Science R-00583 Poole, B. C. and Sylvia, D. M. Companion Plants Affect VAM Fungus Colonization of Myrica cerifera L. by Vesicular-Arbuscular Mycorrhizal Fungi. Canadian Journal of Botany 68:2703-2707. 1990 R-00198 Rao, P. S. Sorption of Organic Contaminants. Water Science and Technology 22-6:1-6. 1990 R-00247 Rao, P. S.; Lee, L. S. and Pinal, R. Cosolvency and Sorption of Hydrophobic Organic Chemicals. Environmental Science and Technology 24:647-654. 1990 R-00348 Reddy, K. R. and Debusk, W. F. Decomposition of Water Hyacinth Detritus in Eutrophic Lake Water. Hydrobiologia 211:101-109. 1990 R-00084 Reddy, K. R.; D'Angelo, E. M. and DeBusk, T. A. Oxygen Transport Through Aquatic Macrophytes: The Role in Wastewater Treatment. Journal of Environmental Quality 19:261-267. 1990 R-00501 Reddy, K. R.; D'Angelo, E.; Lindau, C. and Patrick, Jr., W. H. Urea Losses in Flooded Soils with Established Oxidized and Reduced Soil Layers. Biology and Fertility Soils 9:283-287. 1990 R-00390 Reddy, K. R.; Rao, P. S. and Jessup, R. E. Transformations and Transport of Ammonium Nitrogen in a Flooded Organic Soil. Ecological Modeling 51:205-216. 1990 R-00709 Rhue, R. E. and Rao, P. S. Application of Gas Chromatographic Techniques for Characterizing Vapor Sorption on Soils: A Review. Chemosphere 21:537-556. 1990 R-00074 Stone, E. L. Boron Deficiency and Excess in Forest Trees: A Review. Forest Ecology and Management 37:49-75. 1990 R-00179 Sylvia, D. M. and Neal, L. H. Nitrogen Affects the Phosphorus Response of VA-Mycorrhiza. New Phytologist 115303-309. 1990 R-00001 Van Rees, K. C.; Comerford, N. B. and McFee, W. W. Modeling Potassium Uptake by Slash Pine Seedlings from Low Potassium-Supplyng Soils of the Southeastern Coastal Plain. Soil Science Society of America 54:1413-1421. 1990 R-00002 Van Rees, K. C.; Comerford, N. B. and Rao, P. S. Defining Soil Buffer Power: Implications for Ion Diffusion and Nutrient Uptake Modeling. Soil Science Society of America 54:1505-1507. 1990 R-00215 VanRees, K. C. and Comerford, N. B. The Role of Woody Roots of Slash Pine in Water and Potassium Absorption. Canadian Journal of Forest Research 20:1183-1191. 1990 R-00804 Wang, H. D.; Harris, W. G. and Yuan, T. L. Presence of Noncrystalline Phosphates in Florida Phosphatic Soils. Soil Science Society 55:665-669. 1991 R-00851 Wang, H. D.; Harris, W. G. and Yuan, T. L. Relation between Phosphorus and Iron in Florida Phosphatic Soils. Soil Science Society of America 55:554-560. 1991 R-00835 Wood, A. L.; Bouchard, D. C.; Brusseau, M. L. and Rao, P. S. Cosolvent Effects on Sorption and Mobility of Organic Contaminants in Soils. Chemosphere 21:575-587. 1990 Non-Refereed Publications: N-00176 Sylvia, D. M. Beneficial Root-Associated Fungi Improve Establishment of Sea Oats on Beach Nourishment Sand. Beaches: Lessons of Hurricane Hugo, Fla. Shore and Beach Preservation. p. 100-112. 1990 Research Grants: Brown R. B. Soils Assessment of Crystal River/Kings Bay for OSDS Use. Owen Ayers & Associates. 11/15/90- 03/01/91. $5,000 Brown R. B. Soils Assessment for Septic Systems in the Suwannee River Basin. Owen Ayers & Associates. 01/22/91-06/01/91. $6,500 Collins M. E. Doline Stratigraphy & Landscape Stability on Karst Topography at the Oak Ridge Lab. Martin Marietta Corporation. 11/01/90-09/30/91. $7,250 Collins M. E. Acceleration of Soil Surveys in Florida Basic Agreement. Dept of Agricul & Consumer Ser. 07/01/90-06/30/91. $116,000 Collins M. E. Determination of Selected Soil Properties. Agricultural Management Ser Co. 05/01/90- 04/30/91. $2,000 Collins M. E. Tebuthiuron Study. Water Management Districts. 09/28/90-09/27/91. $3,645 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Soil Science 79 Collins M. E. Soil Chemical & Associated Properties. Sartain J. B. Studies Involving the Use of Nitroform on Environmental Science & Eng. 09/01/90-08/31/91. Turfgrass. Nor-Am Agricultural Products. 05/01/91- $2,909 04/30/92. $2,400 Collins M. E. Soil Investigations of the Upper Agwan Sylvia D. M. Mycorrhizal Root Competition for Nutrients Valley Honduras. Standard Fruit Company. in Infertile Forest Soils. National Science 03/01/91-02/28/92. $9,954 Foundation. 01/01/91-12/31/93. $118,853 Graetz D. A. Research Water-Column Sediment Nutrient Interactions as a Function of Hydrology. Water Management Districts. 12/22/88-03/31/92. $25,500 Graetz D. A. Orange County Eastern Service Area WWTF Phase III Wetlands Research Program. Camp Dresser & Mckee. 01/01/88-03/31/91. $50,720 Graetz D. A. Fate of Fertilizer Nitrogen in Maize & Groundnut Crop Rotation Systems in Zambia. North Carolina A&T University. 11/14/90-11/13/91. $2,000 Hammond L. C. Allied Signal Coke Plant. Int Technology Corporation. 04/01/91-06/30/91. $450 Johnston C. T. Chemical Mechanisms of Interaction of Aromatic Hydrocarbons by Clary Minerals in Soil. U S Air Force. 12/09/88-12/31/91. $15,000 Mansell R. S. Fate & Transport of Tetraethylene & Associated Weathering Products in Subsurface. Battelle Laboratories. 11/08/90-01/04/91. $10,882 Rao P. S. Multi-Solute Sorption Chemistry of Phenolic Compounds in Soils & Groundwater. Battelle Laboratories. 05/15/89-09/30/92. $50,000 Rao P. S. Environment Partitioning & Release of Organics from Utility Waste Disposal Sites. University of Texas. 04/01/89-12/31/91. $72345 Reddy K. R. Lake Okeechobee Phosphorus Dynamics Study. Water Management Districts. 02/12/88- 02/12/91. $46,312 Reddy K. R. Nutrient Storage & Movement in the Lake Apopka March Project. Water Management Districts. 04/10/91-07/09/94. $98,750 Sartain J. B. Effects of Ringer Based Products on Warm & Cool Season Turfgrasses. Ringer Corporation. 05/15/90-05/15/91. $9,600 Sartain J. B. Effects of Types & Rates of N & K Sources on Turfgrasses. Fl Turf-Grass Association. 10/01/88- 09/30/91. $5,000 Sartain J. B. Studies with Fe-Humate on Turfgrass. Kemiron. 02/15/91-02/14/92. $10,500 Sartain J. B. Establishing Vegetative Cover on Phosphogypsum. FI Inst of Phosphate Research. 04/27/90-08/26/93. $6,058 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 80 Statistics STATISTICS 489 Littel Hall / Gainesville, FL 32611 Telephone: 904-392-1941 Fax: 904-392-5175 1,2 RONALD H. RANDLES Chair & Prof. 2 JOHN A. CORNELL Prof., Design of Experi- ments, Experiments With Mixtures 2 RAMON C. LITTELL Prof., Theory of Inference, Statistical Computings 2 F. G. MARTIN, Prof., Design & Analysis of Experiments, Statistical Genetics 2,3 KENNETH M. PORTIER Assoc. Prof., Environ- mental Statistics CRIS Projects: STA02820 Experimental Designs and Models for use in Agricultural Mixture Experiments J. A. Cornell STA02990 Statistical Models and Analyses for Repeated Measures Data R. C. Littell Refereed Publications: R-00970 Comell, J. A. Embedding Mixture Experiments Inside Factorial Experiments. Journal of Quality Technology 22:265-276. 1990 R-01238 Littell, R. C. Analysis of Repeated Measures Data. 1990 Kansas State Univ. Confeence on Applied Statistics in Agriculture. p. 1-12. 1990 Research Grants: Randles R. H. Statistical Support for USDA. U S Dept of Agriculture. 03/01/90-09/30/90. $19,700 4 Other UF or Cooperating Agency 1 Resident Instruction 2 Research 3 Extension Vegetable Crops 81 VEGETABLE CROPS 1251 Fifield Hall / Gainesville, FL 32611 Telephone: 904-392-1928 Fax: 904-392-6479 1,2,3 DANIEL J. CANTLIFFE Chair & Prof., Seed Physiology 1,2 MARK J. BASSETT Prof., Hort., Plant Breeding 1,2 THOMAS A. BEWICK Asst. Prof., Vegetable Production 1,2 JEFFREY K. BRECHT Assoc. Prof., Postharvest Physiology 1,2 CHRISTINE D. CHASE Asst. Prof., Molecular Genetics 1,2 ROBERT J. FERL Prof., Biological Sciences 2 CHESLEY B. HALL Prof., Physiology 1,2 LARKIN C. HANNAH Prof., Hort., Biochemical Genetics 2,3 GEORGE J. HOCHMUTH Assoc. Prof., Ext. Veg. Spec. Nutrition 1,2 DONALD J. HUBER Prof., Postharvest Physiology 1,2 THOMAS E. HUMPHREYS Prof., Hort., Physiology 1,2 STEPHEN R. KOSTEWICZ Assoc. Prof., Crop Production 1,2 SALVADOREJ. LOCASCIO Prof., Herbicides And Nutrition 1,2 DONALD R. MCCARTY Asst. Prof., Seed Physiology 2,3 STEVEN A. SARGENT Asst. Prof., Postharvest Physiologist 2,3 WILLIAM M. STALL Prof., Extension Vegetable Specialist, Weed Control 1,2 CARLOS E. VALLEJOS Asst. Prof., Physiological Genetics 1,2 INDRA K. VASIL Grad. Res. Prof., Tissue Culture & Genetic Modification CRIS Projects: VEC02345 Rapid Propagation, Genetic Manipulation and Improvement of Napiergrass and Giant Napiergrass D. D. Gull J. K. Brecht S. A. Sargent I. K. Vasil VEC02487 Trickle Irrigation in Humid Regions S. J. Locascio S. M. Olson VEC02532 Postharvest Physiology and Biochemistry of Vegetables J. K. Brecht D. J. Huber VEC02548 Soil Test Methodology and Crop Response Correlations G. J. Hochmuth VEC02549 The Genetic and Physiological Bases of Low Temperature Tolerance in Plants C. E. Vallejos VEC02582 Chromatin Structure and Gene Expression in Maize R. J. Ferl VEC02588 Molecular Characterization of the Sucrose Synthetase-2 Gene of Maize L. C. Hannah VEC02612 Weed Control in Vegetable Crop Production S. J. Locascio W.M. Stall S. R. Kostewicz T. A. Bewick VEC02640 Development of Cultivars and Specialized Genetic Stocks for Basic Research in Common Bean M. J. Bassett VEC02688 Application of Integrated Agrotechnology for Crop Production and Environmental Quality Protection G. J. Hochmuth VEC02690 Postharvest Technology and Quarantine Treatments for Insect Control in Horticul- tural Crops J. K. Brecht VEC02724 Southern Region Program to Clear Pest Control Agents for Minor Uses W.M. Stall VEC02757 Vegetable Crops Physiology and Biochemistry C. B. Hall T. E. Humphreys D. J. Cantliffe VEC02772 Dissociation Mutagenesis of the Shrunken-2 Locus of Maize L. C. Hannah VEC02775 Biological Weed Control in Vegetable Crops T. A. Bewick VEC02801 Development of Improved Carrot Cultivars for Florida M. J. Bassett 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 82 Vegetable Crops VEC02831 Biological Control of Nutsedge with Fungal Pathogens T. A. Bewick VEC02843 Efficient Fertilization and Irrigation Practices for Vegetables S. J. Locascio G. J. Hochmuth VEC02853 Molecular Analysis of Regulatory Gene Interaction in Maize D. R. McCarty VEC02877 Molecular and Genetic Analysis of Low Temperature Tolerance in Tomato C. E. Vallejos VEC02878 Molecular Genetics of Cytoplasmic Male Sterility in Phaseolus vulgaris C. D. Chase VEC02883 Cellular and Whole Plant Complexation and Transport of Zinc and Copper C. D. Chase VEC02889 Postharvest Systems for Quality Maintenance of Vegetables S. A. Sargent J. K. Brecht VEC02992 Discovery and Development of Plant Patho- gens for Biological Control of Weeds T. A. Bewick VEC02994 Gentics and Physiology of Sweet Corn Quality, Pest Resistance and Yield L. C. Hannah D. J. Cantliffe VEC03031 Genetic Improvement of Beans (Phaseolus vulgaris L.) for Yield, Pest Resistance and Food Value M. J. Bassett C. E. Vallejos C. D. Chase VEC03070 Cellular and Whole Plant Complexation and Transport of Zinc and Copper C. D. Chase VEC03072 Molecular Characterization of Sucrose Synthase Genes of Maize L. C. Hannah VEC03082 Genetic Improvement of Beans (Phaseolus vulgaris L.) for Yield, Pest Resistance and Food Value M. J. Bassett C. D. Chase C. E. Vallejos VEC03086 Microirrigation of Horticultural Crops in Humid Regions S. J. Locascio Refereed Publications: R-00098 Ahrens, M. J. and Huber, D. J. Physiology and Firmness of Ripening Tomato Fruit. Physiologica Plantarum 78:8-14. 1990 R-00486 Bae, J. M. and Hannah, L. C. Cloning and Characterization of the Brittle-2 Gene of Maize. Maydica 35:313-316. 1990 R-00432 Bassett, M. J. A Pleiotropic Mutant for Male Sterility and Spindly Branching at the sb Locus in Common Bean. American Society for Horticultural Science 116:346-348. 1991 R-00342 Bassett, M. J. and Blom, A. A New Genotype for White Seed Coat Discovered in 'Early Wax' Snap Bean. American Society for Horticultural Science 116:131-136. 1991 R-00023 Bassett, M. J. and Lin-Bao, X. Flower Colors in Common Bean by Interactions of the Sal and V. lock and a Gametophyte Factor Ga Linked to Saland a Gametophyte Factor Ga Linked to Sal. American Society for Horticultural Science 115:1029-1033. 1990 R-00190 Bewick, T. A.; Kostewicz, S. R. and Stall, W. M. Influlence ofFungicides/Bactericides on Control of American Black Nightshade (Solanun americanum, Mill.) with Paraquat. HortScience 25:1407-1408. 1990 R-00768 Bewick, T. A.; Stall, W. M.; Kostewicz, S. R. and Smith, K. Alternatives for Control of Paraquat Tolerant American Black Nightshade (Solanum americanum). Weed Technology 5:61-65. 1991 R-00477 Bhave, J. R.; Lawrence, S.; Barton, C. and Hannah, L. C. Identification and Molecular Characterization of Shrunken-2 cDNA Clones of Maize. The Plant Cell 2:581-588. 1990 R-00946 Bikomo-Mbonomo, R. and Brecht, J. K. Curing, Wash Water Chlorination and Packaging to Improve the Postharvest Quality of Xanthosoma Cormels. Scientia Horticulturae 47:1-13. 1991 R-00635 Bournival, B. L. and Vallejos, C. E. New Sources of Genetic Resistance to Race Three of Fusarium Wilt of Tomato. Plant Disease 75:281-284. 1991 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Vegetable Crops 83 R-00205 Boumival, B. L.; Vallejos, C. E. and Scott, J. W. Genetic Analysis of Resistance to Races 1 and 2 of Fusarium oxysporum f. sp. lycopersici from the Wild Tomato Lycopersicon pennellii. Theoretical and Applied Genetics 79:641-645. 1990 R-00278 Braverman, M. P.; Duskky, J. A.; Locascio, S. J. and Homsby, A. G. Sorption and Degradation of Thiobencarb. Weed Science Society 38:583-588. 1990 R-00277 Braverman, M. P.; Locascio, S. J.; Dusky, J. A. and Hornsby, A. G. Mobility and Bioactivity of Thiobencarb. Weed Science Society of America 38:607-614. 1990 R-00945 Brecht, J. K.; Shewfelt, R. L.; Garner, J. C. and Tollner, E. W. Using X-Ray Computed Tomography (X-Ray CT) to Nondestructively Determine Maturity of Green Tomatoes. HortScience 26:45-47. 1990 R-00853 Chase, C. D.; Ortega, V. M. and Vallejos, C. E. DNA Restriction Fragment Length Polymorphisms Parallel Isozyme Diversity in Phaseolus vulgaris L. Theoretical and Applied Genetics 81:806-811. 1991 R-00433 Clough, G. H.; Locascio, S. J. and Olson, S. M. Yield of Successively-Cropped Polyethylene- Mulched Vegetables as Affected by Irrigation Method and Rate and Time of N and K Application. American Society of Horticultural Science 115:884-887. 1990 R-00396 DeLisle, A. J. and Ferl, R. J. Characterization of the Arabidopsis Adh G-Bos Binding Factor. The Plant Cell 2:547-557. 1990 R-00183 DeVetten, N. C. and Huber, D. J. Cell Wall Changes During the Expansion and Senescence of Carnation (Dianthus caryophyllus L.) Petals. Physiologia Plantarum 78-3:447-454. 1990 R-01142 DeVetten, N. C.; Huber, D. J. and Gross, K. C. Enzymic Degradation of Hemicelluloses During Development of Carnation (Dianthus caryophyllus L.) Petals. Plant Physiology 95:853-860. 1991 R-00512 Ferl, R. J. ARF-B2: A Protein Complex that Specifically Binds to Part of the Anaerobic Response Element of Maize Adhl. Plant Physiology 93:1094-1101. 1990 R-01176 Huber, D. J. and Lee, J. H. Acidified Phenol Alters Tomato Cell Wall Pectin Solubility and Calcium Content. Phytochemistry 40:2523-2527. 1991 R-01569 Leskovar, D. I. and Cantliffe, D. J. Growth and Yield of Pepper Transplants and Direct-Seeded Plants. Journal of the American Society of Horticultural Science 116:416-420. 1991 R-00798 Leskovar, D. I. and Cantliffe, D. J. Tomato Transplant Growth Morphology affected by Handling and Storage. HortScience 81:806-811. 1991 R-00872 Leskovar, D. I.; Cantliffe, D. J. and Stoffella, P. J. Growth after Establishment as Influenced by Transplant Age in Tomatoes. American Society for Horticultural Science 116:416-420. 1991 R-00259 Leskovar, D. I.; Cantliffe, D. J. and Stoffella, P. J. Spatial Root Growth and Root-Shoot Interaction in Transplants and Direct Seeded Plants of Pepper. Environmental and Experimental Botany 30349-354. 1990 R-00175 McKendree, W. L.; Paul, A. L.; DeLisle, A. J. and Ferl, R. J. In Vivo and In Vitro Characterization of Protein Interactions with the Dyad G-Box of the Arabidopsis Adh Gene. The Plant Cell 2:207-214. 1990 R-00671 Morrish, F. M.; Hanna, W. W. and Vasil, I. K. The Expression and Perpetuation of Inherent Somatic Variation in Regenerants from Embryogenic Cultures of Pennisetum glaucum (L.) R.BR. (Pearl Millet). Theoretical and Applied Genetics 80:409-416. 1990 R-01236 Parera, C. A. and Cantliffe, D. J. Improved Stand Establishment of Shrunken-2 Sweet Corn by Seed Treatments. Florida State Horticultural Society 103:153-157. 1990 R-00665 Paul, A. L. and Ferl, R.J. Adhl and Adh2 Transcriptional Regulation. Maydica 36:129-134. 1991 R-00688 Paul, A. L. and Ferl, R. J. In Vivo Footprinting Reveals Unique CIS Elements and Different Modes of Hypoxic Stress Induction in Maize adhl and Adh2. Plant Physiology 3:159-168. 1991 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction 84 Vegetable Crops R-00227 Redway, F. A. and Vasil, I. K. Selection of S-(2- Aminoethyl)-Cysteine Tolerance in Embryogenic Calli and Regenerated Plants of Pennisetum purpureum Schum. Plant Science 67:203-209. 1990 R-00535 Redway, F. A.; Vasil, V. and Vasil, I. K. Characterization and Regeneration of Wheat (Triticum aestivum L.) Embryogenic Cell Suspension Cultures. Plant Cell Reports 8:714-717. 1990 R-00494 Redway, F. A.; Vasil, V.; Lu, D. and Vasil, I. K. Identification of Callus Types for Long-Term Maintenance and Regeneration from Commercial Cultivars of Wheat (Triticum aestivum L.). Theoretical and Applied Genetics 79:609-617. 1990 R-00253 Schultheis, J. R.; Cantliffe, D. J. and Chee, R. P. Optimizing Sweet Potato (Ipomoe batatas (L.) Lam.) Root and Plant Formation by Selection of Proper Embryo Developmental Stage and Size, and Gel Type for Fluidized Sowing. Plant Cell Culture 9:356-359. 1990 R-01502 Taylor, M. G. and Vasil, I. K. Effect of Physical Factors, and the Histology of Transient GUS Expression in Pearl Millet (Pennisetum glaucum (L.) R.Br.) Embryos following Microprojectile Bombardment. Plant Cell Reports 10:120-125. 1991 R-00255 Vallejos, C. E. Low Night Temperatures have a Differential Effect on the Diurnal Cycling of Gene Expression in Cold Sensitive and Tolerant Tomatoes. Plant Cell and Environment 14:105-112. 1991 R-00696 Vallejos, C. E. and Chase, C. D. Linkage between Isozyme Markers and a Locus Affecting Seed Size in Phaseolus vulgaris L.. Theoretical and Applied Genetics 81:413-419. 1991 R.00527 Vasil, V.; Redway, F. and Vasil, I. K. Regeneration of Plants from Embryogenic Suspension Culture Protoplasts of Wheat (Triticum aestivum L.). Bio/Technology 8:429-434. 1990 Non-Refereed Publications: N-00395 Brecht, J. K.; Sargent, S. A.; Hochmuth, R. C. and Tervola, R. S. Postharvest Quality of Supersweet (sh2) Sweet Corn Cultivars. Florida State Horticultural Society 103:283-288. 1990 N-00285 Hall, C. B. Relation of Light Intensity to Radish Shape. Florida State Horticultural Society 103:100-101. 1990 N-00354 Hochmuth, G. J.; Cantiffe, D. J. and Meline, C. Effects of Mulching and Planting Methods on Performance of Sweet Corn in Florida. Florida State Horticultural Society 103:91-93. 1990 N-00362 Hochmuth, R. C.; Olson, S. M. and Hochmuth, G. J. Short Day Onion Cultivars for North Florida. Florida State Horticultural Society 103:96-98. 1990 N-00011 Lamberts, M. L. and Crane, J. H. Tropical Fruits. 1st National Symposium New Crops, Research, Development, Economics 42:157. 1990 N-00276 Leskovar, D. I. and Cantiffe, D. J. Does the Initial Condition of the Transplants affect Tomato Growth and Development?. Florida State Horticultural Society 103:148-153. 1990 N-00348 Locascio, S. J. and Hensel, D. R. Potato Yield as Influenced by Gelling a Liquid Fertilizer. Florida State Horticultural Society 103:108-110. 1990 N-00360 Sargent, S. A.; Brecht, J. K. and Zoellner, J. J. Some Physical Characteristics of Bell Peppers in Relation to Capacities of Standard and Potential Shipping Containers. Florida State Horticultural Society 103:222-225. 1990 N-00351 Stall, W. M. and Hochmuth, R. C. Control of Weed Species and Cucumber Tolerance with Selected Herbicide and Herbicide Combinations. Florida State Horticultural Society 103:126-130. 1990 Research Grants: Bassett M. J. Labeling the Marker Genes in Lamprecht's Bean Collection & Development of a Marker. U S Dept of Agriculture. 05/15/90-09/30/90. $6,000 Bewick T. A. Profitability of Controlling Yellow Nutsedge with Chemical and/or Biological Herbicides. University of Georgia. 06/01/90-05/31/93. $13,500 Bewick T. A. Potential Biological Control of Sedge Weeds. Oregon Cranberry Growers Assoc. 06/25/90- 06/24/91. $1,500 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction Vegetable Crops 85 Bewick T. A. Biological Control of Nutsedge with Fungal Pathogens. U S Dept of Agriculture. 07/01/89- 06/30/91. $81300 Cantliffe D. J. Lettuce Trials in Florida. Asgrow Seed Company. 08/01/90-07/31/91. $2,500 Cantliffe D. J. Vigor Tests for Shrunken Corn. Asgrow Seed Company. 12/01/90-11/30/92. $8,350 Cantliffe D. J. Biological Protectants for Sweet Corn. Eastman Kodak Company. 03/12/91-03/11/92. $1,500 Ferl R. J. Trans-Acting Factors Regulating Gene Expression. National Institutes of Health. 01/01/89- 12/31/93. $108,440 Hannah L. C. Molecular Characterization of Sucrose Synthase Genes of Maize. U S Dept of Agriculture. 09/01/90-08/31/93. $180,000 Hannah L. C. Maize Endosperm Development. Pillsbury Company Inc. 04/01/90-03/31/93. $48,455 Hochmuth G. J. Production of Antitumor Agents by Plants Grown Under Hydroponic Conditions. National Institutes of Health. 12/07/90-12/06/91. $7,000 Locascio S. J. N Sources & N Rates for Drip-Irrigated Pepper. Exxon. 03/22/91-12/31/91. $4,000 McCarty D. R. Molecular Analysis of Regulatory Gene Interaction in Maize. McKnight Foundation. 07/01/89-06/30/91. $35,000 Sargent S. A. Options for Standard Shipping Containers for Bell Peppers. Fl Bell Pepper Growers Exch. 04/15/91-09/15/91. $1,500 Stall W. M. Dinoseb Alternatives for Horticulture & Agronomic Crops in the Pacific Northwest. Oregon State University. 05/01/90-04/30/92. $4,500 Vallejos C. E. Tagging Disease Resistances of Ecomomic Importance in the Caribbean Region. U S Dept of Agriculture. 07/01/91-06/30/92. $41,604 Vasil I. K. UNESCO Biotechnology Advisory Committee. United Nations. 11/14/90-11/13/91. $2,500 2 Research 3 Extension 4 Other UF or Cooperating Agency - - 1 Resident Instruction 86 School of Forest Resources & Conservation SCHOOL OF FOREST RESOURCES & CONSERVATION 118 Newins-Ziegler Hall / Gainesville, FL 32611 Telephone: 904-392-1792 Fax: 904-392-1707 1,2,3 ARNETT C. MACE JR. Director & Prof. Research Grants: Huffman J. B. Extension Agreement Preservation Treated Wood Test Plots. Michigan Technological Univ. 11/18/85-08/31/90. $750 Kitchens W. M. Graduate Research in Fish & Game Commission. Game & Fresh Water Fish Commis. 07/01/79-12/31/99. $59,365 Mace A. C. Impact of Forest Practices on Multiple Forest Values. U S Dept of Agriculture. 10/01/89-12/31/90. $110,500 Mace A. C. Polk County Mined Lands Agriculture Research/Demonstration Project. Polk County. 03/01/90-02/29/92. $92,500 Mace A. C. Osmose-Wood Treatment Test Plots. Osmose Wood Preserving. 08/01/87-07/31/91. $375 1 Resident Instruction 2 Research 3 Extension 4 Other UF or Cooperating Agency 4 Other UF or Cooperating Agency 1 Resident Instruction 2 Research 3 Extension Forestry 87 FORESTRY 118 Newins-Ziegler Hall / Gainesville, FL 32611 Telephone: 904-392-1850 Fax: 904-392-1707 1,2,3 C. PATRICK REID Chmn. & Prof., Ecology, Physiology 2 ROBERT C. ABT Assoc. Prof., Forest Ecnomics 1,2 LOUKAS G. ARVANITIS Prof., Mensuration Biometrics 1,2 GEORGE M. BLAKESLEE JR Assoc. Prof., For Path 2,3 MARY L. DURYEA Assoc. Prof., Tree Physiol./ reforestation 1,2 KATHERINE C. EWEL Prof., Ecology 1,3 DAVID M. FLINCHUM Prof., Forestry Mgt. Ext. Spec. 1,2 HENRY L. GHOLZ Prof., Forestry Ecol. 1,2 JON D. JOHNSON Assoc. Prof., Tree Physiology 1,2 ERIC J. JOKELA Assoc. Prof., Silviculture 2 MARK S. LESNEY Asst. Prof., Forest Biotechnology 1,2 ALAN J. LONG Assoc. Prof., Forest Operations 2 PUTHEN K R. NAIR Prof., Agroforestry, 23 HANS RIEKERK Assoc. Prof., For. Hydrology 1,2 DONALD L. ROCKWOOD Prof., Forest Genet. 1,2 ROBERT A. SCHMIDT Prof., For. Path. 23 ROGER S. WEBB Assoc. Prof., Forest Path. 1,2 TIMOTHY L. WHITE Assoc. Prof., Forest Genetics CRIS Projects: FOR01827 Impact of Forest Management Practices on Multiple Forest Values W. H. Smith W. L. Pritchett D. L. Rockwood J. D. Johnson W. R. Marion A. C. Mace L. D. Harris H. L. Gholz E. J. Jokela G. M. Blakeslee FOR02360 Environmental Limits on the Structure and Primary Productivity of Florida Forests H. L. Gholz K. C. Ewel W. P. Cropper FOR02416 Genetic Improvement of Four Southern Pine Species D. L. Rockwood T. L. White FOR02443 Relationships and Interactions between Pathogens, their Hosts, and Attack by Bark Insects R. S. Webb FOR02503 Fertilization and Nutrition of Southern Pine E. J. Jokela FOR02515 Mineralization and Recycling of Composted Garbage and Sewage Sludge through Forests H. Riekerk FOR02554 Carbon Use in Mycorrhizae Symbiosis: Carbon Allocation/Phosphorus Nutrition in Pine C. P. Reid FOR02606 Stress Acclimation of Photosynthesis in Pine J. D. Johnson M. S. Lesney FOR02638 Modeling Slash Pine Growth from Individual Tree Measurements L. G. Arvanitis FOR02655 Market Structure and Performance of the Forest Products Industry in Florida and the Southeast R. C. Abt FOR02658 Operational Alternatives for Establishing Southern Pine Stands in Florida A. J. Long FOR02659 Nitrogen Efficiency as an Adaptive Mecha- nism in Slash Pine M. L. Duryea T. L. White FOR02660 Pitch Canker Disease of Southern Pines: Genetic Resistance and Epidemiology G. M. Blakeslee FOR02702 Chemistry of Atmospheric Deposition- Effects on Agriculture, Forestry, Surface Waters, and Materials H. Riekerk FOR02713 Interactions among Bark Beetles, Pathogens, and Conifers in North American Forests R. S. Webb J.D. Johnson FOR02835 Response of Slash Pine Families to Acidic Precipitation and Ozone Stress in North Florida J. D. Johnson T. J. Dean L. G. Arvanitis 2 Research 3 Extension 4 Other UF or Cooperating Agency -- -- 1 Resident Instruction 88 Forestry FOR02864 Ethylene's Role in the Induced Host Resis- tance to Bark Beetles and Vectored Fungi J. D. Johnson FOR03064 Epidemiology and Management of Fusiform Rust on Southern Pine R. A. Schmidt Refereed Publications: R-00400 Colbert, S. R.; Jokela, E. J. and Neary, D. G. Effects of Annual Fertilization and Sustained Weed Control on Dry Matter Partitioning, Leaf Area, and Growth Efficiency of Juvenile Loblolly and Slash Pine. Forest Science 36:995-1014. 1990 R-00476 de Souza, S. M.; White, T. L.; Young, C. H.; Schmidt, R. A. and Anderson, R. L. Evaluation of Fusiform Rust Symptoms on Greenhouse- Grown Slash Pine Seedlings for the Prediction of Field Resistance: Trait Stability. Plant Disease 74:969-974. 1990 R-00901 Dean, T. J. and Johnson, J. D. Proportional- Plus-Integral Control of Experimental Ozone Concentrations in a Large Open-Top Chamber. Atmospheric Environment 25:1123-1126. 1991 R-00224 Duryea, M. L. Nursery Fertilization and Top Pruning of Slash Pine Seedlings. Southern Journal of Applied Forestry 14:73-76. 1990 R-00721 Gholz, H. L.; Vogel, S. A.; Cropper, Jr., W. P.; McKelvey, K.; Ewel, K. C. and Curran, P. J. Dynamics of Canopy Structure and Light Interception in Pinus elliottii Stands of North Florida. Ecology/Ecological Monographs 61:33-51. 1991 R-01039 Johnson, J. D. and Stelzer, H. E. Loblolly Pine Photosynthesis is Enhanced by Sublethal Hexazinone Concentrations. Tree Physiology 8:371-379. 1991 R-00930 Jokela, E. J.; McFee, W. W. and Stone, E. L. Micronutrient Deficiency in Slash Pine: Response and Persistence of Added Manganese. Soil Science Society of America 55:492-496. 1991 R-00965 Kainer, K. A. and Duryea, M. L. Root Wrenching and Lifting Date of Slash Pine: Effects on Morphology, Survival and Growth. New Forests 4:207-221. 1990 R-00827 Rosseau, J. V. and Reid, C. P. Effects of Phosphorus Fertilization and Mycorrhizal Development on Phosphorus Nutrition and Carbon Balance of Loblolly Pine Over Time. New Phytologist 117:319-326. 1991 R-01407 Sequeira, W. and Gholz, H. L. Canopy Structure, Light Penetration and Tree Growth in a Slash Pine (Pinus elliottii) Silvo-Pastoral System at Different Stand Configurations in Florida. The Forestry Chronicle: April 1991 67:263-267. 1991 R-00903 Wullschleger, S. D. and Reid, C. P. Implication of Ectomycorrhizal Fungi in the Cytokinin Relations of Loblolly Pine (Pinus taeda L.). New Phytologist 116:681-688. 1990 Research Grants: Cropper W. P. Modelling Carbon Dynamics of Slash Pine Plantations in Response to Climate Change. Environmental Protection Agency. 10/01/90- 09/30/92. $28,579 Duryea M. L. Physiological & Genetic Mechanisms Controlling Growth Rates in Slash Pine Early. State of Georgia. 08/01/89-07/30/91. $8,206 Ewel K. C. Ecological Society of America Program Chair Coordinating Activities. Ecological Society of America. 01/01/91-08/31/92. $8,000 Gholz H. L. The Development of a North Florida Location as an Intensive Forest Study Site. U S Dept of Agriculture. 01/01/90-06/30/91. $9,136 Gholz H. L. Interaction of Climate & Nutrition on Forest Production Comparison of Controlling. National Science Foundation. 03/01/90-. $75,528 Johnson J. D. Response of Slash Pine Families to Acidic Precipitation & Ozone in North Florida. U S Dept of Agriculture. 05/01/91-10/31/92. $60,000 Jokela E. J. Cooperative Research in Forest Fertilization. Fl Forestry Association. 01/01/91-12/31/91. $111,130 Nair P. K. Soil Fertility & Productivity Aspects of Alley Cropping Under Semi-Arid Conditions. Rockefeller Foundation. 12/01/90-01/31/92. $25,062 Schmidt R. A. A Partnership for Fundamental Research on Pine Productivity. Union Camp Corporation. 01/01/90-12/31/91. $50,000 Schmidt R. A. A Partnership for Fundamental Research on Pine Productivity. Champion International Corp. 01/01/90-12/31/91. $50,000 Schmidt R. A. A Partnership for Fundamental Research on Pine Productivity. Container Corp of America. 01/01/90-12/31/91. $50,000 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction Forestry 89 Schmidt R. A. A Partnership for Fundamental Research on Pine Productivity. Westvaco Corporation. 01/01/90-12/31/91. $50,000 Schmidt R. A. Integrated Forest Pest Management Cooperative. Fl Forestry Association. 07/01/91- 06/30/92. $58,000 Webb R. S. Evaluating the Biocontrol Potential of Pathogenic Fungi from Melaleuca Populations. U S Dept of Agriculture. 09/28/90-09/14/95. $20,000 Webb R. S. Liquid Fertilizer Triazole Injection Trials for Remission of Foliar Chlorosis & Pine. Fl Turf-grass Association. 03/20/91-03/19/92. $26,000 White T. L. Cooperative Forest Genetics Research Program. FI Forestry Association. 07/01/90-12/31/91. $109,330 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 90 Fisheries and Aquaculture FISHERIES AND AQUACULTURE 118 Newins-Ziegler Hall / Gainesville, FL 32611 Telephone: 904-392-9617 Fax: 904-392-3462 2 JEROME V. SHIREMAN Chair & Prof. 2 DONALD E. CAMPTON, JR. Asst. Prof., Fish Genetics 2 DANIEL E. CANFIELD JR Prof., Limnology 23 FRANK A. CHAPMAN Asst. Prof., Fishwater- estuarine Habitats 2,3 CHARLES E. CICHRA Asst. Prof., Fish Ecology And Population Dynamics 3 ANDREW M. LAZUR Asst. Prof., Aquaculture 1,2 WILLIAM J. LINDBERG Asst. Prof., Marine Crustacean Biology 2 EDWARD J. PHLIPS Asst. Prof., Marine Biomass & Microbial Physiology & Biochemistry 1,2 CLAIRE L. SCHELSKE Eminent Scholar, Water Resources CRIS Projects: FAS03019 Ecologic Studies of the Littoral and Pelagic Systems of Lake Okeechobee J. V. Shireman D. E. Canfield E. J. Phlips C. E. Cichra R. Francis-Floyd FAS03027 Variation of Reef Dispersion to Manage Targeted Fishery Assemblages W. J. Lindberg FAS03028 Toward Forecasting Stone Crab Recruitment and Environmentally Induced Year-Class Strength W. J. Lindberg T. M. Bert C. E. Cichra FAS03030 Agreement to Study Phytoplankton-Nutrient Interactions in Lake Apopka C. L. Schelske FAS03033 Population and Quantitative Genetics of Fish and Shellfish in Florida D. E. Campton Refereed Publications: R-01070 Agusti, S.; Duarte, C. M. and Canfield, Jr., D. E. Biomass Partitioning in Florida Phytoplankton Communities. Journal of Plankton Research 13:239-245. 1991 R-00087 Campton, D. E. Application of Biochemical and Molecular Genetic Markers to Analysis of Hybridization. Applications/Electrophoresis & Isoelectric Focusing/Fisheries Mgmt.. p. 241-263. 1990 R-00037 Campton, D. E. and Mahmoudi, B. Genetic Variation and Population Structure of Striped Mullet (Mugil cephalus) in Florida. Copeia 2:485-492. 1991 R-00346 Canfield, D. E.; Hoyer, M. V. and Duarte, C. M. An Empirical Method for Characterizing Standing Crops of Aquatic Vegetation. Plant Management 28:64-69. 1990 R-00917 Duarte, C. M.; Agusti, S. and Canfield, Jr., D. E. Size Plasticity of Freshwater Phytoplankton: Implications for Community Structure. Limnology and Oceanography 35:1846-1851. 1990 R-00723 Frazer, T. K.; Lindberg, W. J. and Stanton, C. R. Predation on Sand Dollars by Gray Triggerfish, Balistes capriscus, in the Northeastern Gulf of Mexico. Bulletin of Marine Science 48:159-164. 1990 R-00985 Lindberg, W. J. and McElroy, D. A. Limitations in Nearest Neighbor Tests of Dispersion and Association. Florida Scientist 54:106-111. 1991 R-01011 Lockhart, F. D.; Lindberg, W. J.; Blake, N. J.; Erdman, R. B.; Perry, H. M. and Waller, R. S. Distributional Difference and Population Similarities for Two Deep-Sea Crabs (Family Geryonidae) in the Northeastern Gulf of Mexico. Canadian Journal of Fisheries and Aquatic Sciences 47:2112-2122. 1990 R-00453 Phlips, E. J. and Zeman, C. Photosynthesis, Growth and Nitrogen Fixation by Epiphytic Forms of Filamentous Cyanobacteria from Pelagic Sargassum. Bulletin of Marine Science 47:613-621. 1990 R-00452 Phlips, E. J.; Monegue, R. and Aldridge, F. Cyanophages which Impact Bloom-Forming Cyanobacteria. Aquatic Plant Management Society 28:92-97. 1990 Research Grants: Campton D. E. Biochemical Population Genetics of Spartina Alterniflora in Florida. Dept of Natural Resources. 07/01/90-10/31/91. $39,792 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Fisheries and Aquaculture 91 Canfield D. E. Relations Between Aquatic Macrophytes & the Limnology & Fisheries of Florida Lakes. Dept of Natural Resources. 05/05/86-11/30/90. $90,000 Canfield D. E. Florida "Lakewatch". Dept of Environmental Regulation. 12/24/90-04/15/92. $215,000 Canfield D. E. Lake Parker Fishery Assessment. Water Management Districts. 01/07/91-03/15/92. $30,000 Canfield D. E. Weeki Wachee Recreational Survey. Water Management Districts. 01/02/91-01/15/92. $15,000 Canfield D. E. Relations Between Aquatic Macrophytes & the Limnology & Fisheries of Florida Lakes. Dept of Natural Resources. 05/05/86-06/01/91. $5,000 Chapman F. A. Use of the Lampricide TFM (3- Trifluoromethyl-4-Mitrophenol) to Control Frog Larvae. Dept of Agricul & Consumer Ser. 03/06/91- 12/06/91. $15,825 Lindberg W. J. Fundamental Design Parameters for Artificial Reefs: Interaction of Patch Reef Spacing. Dept of Natural Resources. 10/18/90-10/17/92. $123,000 Lindberg W. J. Suwannee Regional Reef Program Phase II Construction. Levy County. 05/07/91-07/31/92. $100,000 Mclvor C. C. Coupling of Primary & Secondary Productivity in a Mangrove Dominated Estuary. U. S. Dept of Commerce. 04/01/90-09/30/91. $28,481 Schelske C. L. Lake Seminole Sediment Mapping & Analysis. Water Management Districts. 05/07/90- 05/20/91. $24,813 Schelske C. L. Lake Parker Sediments & Historical Ecology. Water Management Districts. 01/02/91- 03/15/92. $20,000 Schelske C. L. Collection & Analysis of a Sediment Core Taken From Lake Lucerne. U. S. Dept of Interior. 05/01/91-04/30/92. $5,000 Shireman J. V. Factors Affecting Abundance of Spotted Seatrout Year-Class Strength. U. S. Dept of Interior. 08/30/90-06/30/93. $69,085 Shireman J. V. Ecological Studies of the Littoral & Pelagic Systems of Lake Okeechobee. Water Management Districts. 04/15/88-09/30/91. $548,488 Shireman J. V. Early Life History & Relative Abundance of Sturgeon in the Lower Suwannee River Florida. U. S. Dept of Interior. 09/29/87-10/31/93. $39,094 Shireman J. V. Innovative Technology Grant Proposal Gainesville Raceway Aquatic Plant Aquaculture. Dept of Natural Resources. 12/05/90-12/31/92. $200,000 Shireman J. V. Aquatic Animal Medicine Study on Lake Weir, Lake Holly & Newnans Lake. Game & Fresh Water Fish Commis. 10/18/90-10/17/91. $6,970 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 92 Wildlife and Range Sciences WILDLIFE AND RANGE SCIENCES 118 Newins-Ziegler Hall / Gainesville, FL 32611 Telephone: 904-392-4851 Fax: 904-392-1707 1,2 MICHAEL W. COLLOPY Chmn. & Prof., Raptor & Wading Bird Ecology 1,2 LYN C. BRANCH Asst. Prof., Wildlife Ecology 2 JOHN F. EISENBERG Ordway Prof., Ecosystem Conservation 1,2 LAWRENCE D. HARRIS Prof., Wildlife Land- scape Design 1,2 RONALD F. LABISKY Prof., Wildlife Ecology & Mgt. 2,3 WAYNE R. MARION Assoc. Prof., Avian Ecology 2,3 JOSEPH M. SCHAEFER Asst. Prof., Urban Wildlife Management 1,2 MELVIN E. SUNQUIST Assoc. Sci., Wildlife Ecology 2,3 GEORGE W. TANNER Assoc. Prof., Range Ecology & Mgt. CRIS Projects: WRS02817 Wildlife and Growth Management in Florida C. N. Huegel J. M. Schaefer F. J. Mazzotti WRS02830 Nesting Ecology, Movements, and Habitat Requirements of Southern Bald Eagles M. W. Collopy WRS02856 Relationships Between Human Population Growth and Wildlife Species Diversity in Hardwood Hammocks J. M. Schaefer Refereed Publications: R-00439 Frederick, P. C.; Dwyer, N.; Fitzgerald, S. and Bennetts, R. E. Relative Abundance and Habitat Preferences of Least Bitterns (Ixobrychus exilis) in the Everglades. Florida Field Naturalist 18-1:1-9. 1990 R-00741 Hall, P. M. Dangerous to Man? A Record of an Attack by a Black Caiman (Melanosuchus niger) in Guyana. Herpetologica Review 22:9-11. 1991 R-00372 Jacobson, S.K. Evaluation Model for Developing, Implementing, and Assessing Conservation Education Programs: Examples from Costa Rica and Belize. Environmental Management 15:143-150. 1990 R-01080 Jacobson, S. K. and Vanderberg, J. J. Reproductive Biology of the Endangered Golden Toad (Bufo periglenes). Herpetology 25:321-327. 1991 R-00303 Kantola, A. T. and Humphrey, S. R. Habitat Use by Sherman's Fox Squirrel (Sciurus niger shermani) in Florida. Journal of Mammology 71:411-419. 1990 R-00285 Kinnaird, M. F. Pregnancy, Gestation and Parturition in Free-Ranging Tana River Crested Magabeys (Cercocebus galeritus galeritus). Primates 22:285-289. 1990 R-00335 Kinnaird, M. F. and O'Brien, T. G. Viable Populations for an Endangered Forest Primate, the Tana River Crested Mangabey (Cerocebus galeritus galeritus). Conservation Biology 5:203-213. 1991 R-00850 Wood, J. M. and Tanner, G. W. Graminoid Community Composition and Structure within Four Everglades Management Areas. Wetlands 10:127-149. 1990 Popular Articles: T-00061 Brown, M. T.; Schaefer, J. M. and Brant, K. Buffer Zones for Water, Wetlands, and Wildlife in the East Central Florida Region. Report to the East Central Florida Regional Planning Council 177:71.1990 Research Grants: Bolten A. B. Distribution Population Structure & Exploitation of Sea Turtles in the Bahamas. U S Dept of Interior. 09/01/88-08/31/93. $2,930 Bolten A. B. Sea Turtle Investigations in the Cape Canaveral Entrance Channel. U S Army. 12/04/90- 12/31/91. $30,620 Bolten A. B. Distribution Population Structure & Exploitation of Sea Turtles in the Bahamas. U S Dept of Interior. 09/01/88-08/31/93. $3,059 Bolten A. B. Abundance & Habitat Use of Nesting Loggerhead Sea Turtles on the Brenton Nat. Wildlife. U S Dept of Interior. 04/10/91-12/31/92. $3,170 Branch L. C. Assessment of the Feasibility of Using Satellite Imagery as a Tool for Monitoring. NASA. 05/10/91-05/09/92. $1,660 Collopy M. W. Social Behavior & Demographics of the American Swallowtailed Kite in Florida. Sierra Club- Fl. 07/01/90-06/30/91. $500 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Wildlife and Range Sciences 93 Collopy M. W. Population Dynamics of Southern Bald Eagles in Florida Dispersal Patterns Habitat US. Game & Fresh Water Fish Commis. 08/28/87- 06/30/91. $19,490 Collopy M. W. A Cooperative Urban Wildlife , Management Program: A Component of the Florida Nongame. Game & Fresh Water Fish Commis. 01/06/86-12/31/91. $100,000 Harris L. D. An Administrative Study of Wildlife Habitat Fragmentation in the Ocala National Forest. U S Dept of Agriculture. 07/01/90-06/30/91. $6,500 Jacobson S. K. Regional Wildlands Management in Central America: Conservation Education in the Bay. Wildlife Conservation Int. 06/28/91-09/30/91. $10,316 Kitchens W. M. An Evaluation of Refuge Habitats & Relationships to Water Quality Quantity & Hydroperiod. U S Dept of Interior. 09/30/85- 10/30/91. $16,000 Labisky R. F. Population Dynamics of White-Tailed Deer in the Big Cypress National Preserve Phase III. U S Dept of Interior. 09/28/88-03/01/92. $98,000 Labisky R. F. Population Ecology & Management of White-Tailed Deer in the Osceola National Forest. Game & Fresh Water Fish Commis. 07/01/89- 06/30/91. $33,000 Mazzotti F. J. Monitoring American Crocodiles at the Turkey Point & Fort Lauderdale Power Plant Sites. Fl Power & Light Company. 01/01/90-12/31/91. $20,227 McIvor C. C. Coral Reef Monitoring in Support of Management Saba Marine Park Netherlands Antilles. U S Dept of Interior. 09/01/90-03/30/93. $34,000 Mclvor C. C. Ecology of Fish & Macroinvertebrate Populations in Mangrove Habitat in South Florida. Nat. Audubon Society. 08/11/89-08/31/91. $12,000 Percival H. F. Habitat Resources Availability & Use by Migratory Shorebirds at Cabo Rojo Salt Flats P. R. U S Dept of Interior. 08/01/89-05/15/92. $19,000 Percival H. F. Land Management Practices in the Montanue Region of Puerto Rico: Impact & Implications. U S Dept of Interior. 08/01/88- 12/31/93. $36,000 Percival H. F. Determination of the Causes of Low Response Rates with the Waterfowl Hunter Questionnaire. U S Dept of Interior. 05/01/89- 11/16/90. $5,000 Percival H. F. Modeling Reported Waterfowl Harvest & the Effects of Questionnaire on Harvest Estimate. U S Dept of Interior. 11/15/90-05/31/92. $25,378 Percival H. F. Habitat Resources Availability & Use by Migratory Shorebirds at Cabo Rojo, Puerto Rico. U S Dept of Interior. 08/01/89-08/30/92. $8,000 Percival H. F. Modeling Reported Waterfowl Harvest & the Effects of Questionnaire Nonresponse. U S Dept of Interior. 11/15/90-05/31/92. $25,381 Percival H. F. Status Monitoring & Experimental Reintroduction of the Endangered Schaus Swallowtail. U S Dept of Interior. 04/29/91- 09/30/92. $626 Schaefer M. Harwood Hammock Fragments: Relationships Between Human Population Growth & Wildlife. Game & Fresh Water Fish Commis. 07/18/89-06/30/93. $48,223 Townsend W. R. Determining Land Requirements of Native Amazonians: the Siriono of Bolivia. L. B. S. Leakey Foundation. 11/09/90-11/08/91. $4,500 2 Research 3 Extension 4 Other UF or Cooperating Agency - 1 Resident Instruction 94 College of Veterinary Medicine, Components of COLLEGE OF VETERINARY MEDICINE J-125 JHMHC / Gainesville, FL 32610-0125 Telephone: 904-392-2381 Fax: 904-392-8351 1,2,3 RICHARD E. DIERKS Dean & Prof., Virology COMPARATIVE & EXPERIMENTAL PATHOLOGY J-145 JHMHC / Gainesville, FL 32610-0145 Telephone: 904-392-1221 Fax: 904-392-5426 1,2 CLAUS D. BUERGELT Acting Chair & Assoc. Prof., Bovine Paratuber & Tuberculosis INFECTIOUS DISEASES J-137 JHMHC / Gainesville, FL 32610-0137 Telephone: 904-392-1841 Fax: 904-392-9704 1,2 MICHAEL J. BURRIDGE Chair & Prof., Epide- miology, Tropical Diseases 1,2 DAVID R. ALLRED Asst. Prof., Infectious Disease of Animals 1,2 RICHARD E. BRADLEY SR. Prof., Bovine & Equine Parasitology 1,2 MARY B. BROWN Asst. Prof., Mycoplasmal Diseases 1,2,4 CHARLES H. COURTNEY III Assoc. Prof., Parasitology, Canine Heartworm 2 JOHN B. DAME Asst. Prof., Molecular Biology 1,2 DONALD J. FORRESTER Prof., Wildlife Parasitology 1,2 JACK M. GASKIN Assoc., Prof., Veterinary Microbiology 2 EDWARD P. GIBBS Prof., Virology 2 ELLIS C. GREINER Assoc, Prof., Parasitology 2 JOHN T. NEILSON Asst. Dean & Prof 1,2 PAUL L. NICOLETTI Prof., Brucellosis 2 EDWARD B. STEPHENS Asst. Prof., Molecular Virology LARGE ANIMAL CLINICAL SCIENCES J-136 JHMHC / Gainesville, FL 32610-0136 Telephone: 904-392-8266 Fax: 904-392-8289 1,23 R. KENNETH BRAUN Chair & Prof., Diseases of Cattle 2,3 GARY D. BUTCHER Asst. Prof., Aff. Asst. Prof., Avian Disease 2 GERALD A. DONOVAN Assoc. Prof., Bovine Neonatology & Dairy Herd 2,3 RUTH FRANCIS-FLOYD Asst. Prof., Aquacul- ture/fisheries 23 THOMAS J. LANE Assoc. Prof., Ext. Vet. Equine & Companion Animal 2 DARRELL 0. RAE Asst. Prof., Food Animal Beef Reprod. & Herd Health 2,3 EDDIE J. RICHEY Assoc. Prof., Beef Cattle Extension 2,3 JAN K. SHEARER Assoc. Prof., Dairy Science PHYSIOLOGICAL SCIENCES J-144 JHMHC / Gainesville, FL 32610-0144 Telephone: 904-392-0921 Fax: 904-392-5145 1 DARYL D. BUSS Chair & Prof., Coronary & Neonatal Physiology 2 RAYMOND D. HARBISON Prof., Toxicology 1,2 PHILIP C. KOSCH Assoc. Dean & Prof., Respira- tory & Neonatal Physiology 1,2 STEPHEN M. ROBERTS Asst. Prof., Toxicology 2,3 STEPHEN F. SUNDLOF Assoc. Prof., Toxicology SMALL ANIMAL CLINICAL SCIENCES J-126 JHMHC / Gainesville, FL 32610-0126 Telephone: 904-392-8219 2 PAUL T. CARDEILHAC Prof., Alligator Reproduction CRIS Projects: VME02551 Epidemiology and Control of Heartwater M. J. Burridge A. L. DeGee* A. F. Barbet C. E. Yunker G. H. Palmer H. R. Andrew VME02562 Enteric Infections of Cattle R. K. Braun VME02608 Genes of Malignant Catarrhal Fever Virus Coding for Protective Immunogens L. M. Hutt-Fletcher VME02611 Cooperative Research for Minor and Spe- cialty Use Animal Drugs S. F. Sundlof VME02662 Resistance to Mastitis in Dairy Cattle M. B. Brown 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction College of Veterinary Medicine, Components of 95 VME02720 Southern Region Leader Laboratory Coopera- tive Research for Minor and Specialty Use Animal Drugs S. F. Sundlof W. B. Wheeler VME02768 Range of Hypobiotic Strains of Ostertagia ostertagi Assessed Using DNA Markers J. B. Dame C. H. Courtney VME02788 Integrated Methods of Parasite Control for Improved Livestock Production J. T. Neilson J. B. Dame A. F. Barbet T. F. McElwain VME02863 Epizootiology and Significance of Diseases and Parasites of Selected Species of Wildlife in Florida D. J. Forrester VME02884 Interaction of Passive Immunoglobulin Transfer, Neonatal Health and Early Ruminant D. O. Rae VME02885 Mycoplasma Gaisepticum: Prevalence, Pathogenesis, and Subunit Vaccine Development G. D. Butcher M. B. Brown VME02887 Development of a Swinepox-Pseudorabies Recombinant Virus for Oral Vaccination E. P. Gibbs R. W. Moyer VME03014 Reproductive and Growth Parameters of Bos indicus Cattle R. E. Larsen VME03066 Identification, Cloning and Immunogenicity of Anaplasma marginale Invasins D. R. Allred Refereed Publications: R-00053 Altman, D. H.; Harvey, J. W.; Asquith, R. L. and Kivipelto, J. Hematologicl Development in Foals Receiving Intravenous Iron Supplementation. Equine Veterinary Journal 11:103-107. 1991 R-00541 Bauer, J. E. Increased Serum and Liver Lipid Mass and Hepatic 3-Hydroxy-3-Methyl CoA Reductase Activities in Rabbits Fed Soy Protein Saturated Fat Diets. Artery 17:176-188. 1990 R-00935 Bauer, J. E. Serum Lipoprotein Alterations of Rabbits Fed High Fat Soy Protein Dextrose Diets. Nutrition Research 11:771-789. 1991 R-01361 Brown, M. B. and Reyes, L. Immunoglobulin Class- and Subclass-Specific Responses to Mycoplasma pulmonis in Serum and Secretions of Naturally-Infected Sprague Dawley Female Rats. Infection and Immunity 59:2181-2185. 1992 R-00280 Brown, M. B. and Scasserra, A. E. Antibiotic Resistance in Streptococcal Species Isolated from the Bovinen Mammary Gland. American Journal of Veterinary Research 51:2015-2018. 1990 R-00733 Brown, M. B.; Gionet, P. and Senior, D. F. Identification of Mycoplasma felis and Mycoplasma gateae by an Immunobinding Assay. Journal of Clinical Microbiology. p. 1870-1873. 1990 R-01372 Brown, M. B.; Stroll, M.; Maxwell, J. and Senior, D. F. Survival of Feline Mycoplasmas in Urine. Journal of Clinical Microbiology 29:1078-1080. 1991 R-01151 Butcher, G. D. and Brown, M. B. Efficacy of a Respiratory Inhalant in Reducing Morbidity in Budgerigars Infected with Mycoplasma gallisepticum. Journal of the Association of Avian Veterinarians 4:227-230. 1990 R-00559 Butcher, G. D.; Reed, W. M. and Winterfield, R. W. Mycobacterium Infection in a Gray- Cheeked Parakeet. Avian Diseases 34:916-921. 1990 R-00540 Butcher, G. D.; Winterfield, R. W. and Shipiro, D. p. Pathogenesis of H13 Nephropathogenic Infectious Bronchitis Virus. Avian Diseases 34:1023-1026. 1990 R-00320 Caligiuri, R.; Kollias, G. V.; Jacobson, E.; McNab, B.; Clark, C. H. and Wilson, R. C. The Effects of Ambient Temperature on Amikacin. Journal of Veterinary Pharmacology and Therapeutics 13-3:287-291. 1990 R-00263 Caligiuri, R.; Norton, T.; Jacobson, E.; Hart, O. J.; Locke, R.; Ackerman, N. and Spencer, C. Urethral Obstruction and Abscessation in a Chimpanzee. Journal of Zoo and Wildlife Medicine 21:206-214. 1990 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 96 College of Veterinary Medicine, Components of R-01165 Chen, C. L.; Simmen, R. C. and Chou, J. Y. Characterization of Endocrine Cell Lines Immortalized by a Temperature-Sensitive Mutant SV40. Chinese Journal of Physiology 34:65-80. 1991 R-01062 Dame, J. B.; Yowell, C. A.; Courtney, C. H. and Lindgren, W. G. Cloning and Characterization of the Ribosomal RNA Gene Repeat from Osteritagia ostertagi. Molecular and Biochemical Parasitology 45:275-280. 1991 R-00010 Ferenc, S. A.; Stopinski, V. and Courtney, C. H. The Development of an Enzyme-Linked Immunosorbent Assay for Trypanosoma vivax. International Journal for Parasitology 20:51-56. 1990 R-00374 Forrester, D. J. and Rausch, R. L. Cysticerci (Cestoda:Taeniidae) from White-Tailed Deer, Odocoileus virginianus (Zimmermann), in Southern Florida. Journal of Parasitology 76:583-585. 1990 R-00927 Francis-Floyd, R.; White, J. R.; Chen, C. L.; Cardeilhac, P. T. and Cichra, C. E. Serum Progesterone and Estradiol Concentrations in Captive Manatees, Trichechus manatus. Journal of Aquatic Animal Health 3:70-73. 1991 R-01202 Garber, J. L. and Madison, J. B. Signs of Abdominal Pain Caused by Disruption of the Small Intestinal Mesentery in Three Post Parturient Cows. American Veterinary Medical Association 198:864-866. 1991 R-01455 Gaskin, J. M.; Homer, B. L. and Eskelund, K. H. Preliminary Findings in Avian Viral Serositis: A Newly Recognized Syndrome of Psittacine Birds. Journal of the Association of Avian Veterinarians 5:27-34. 1991 R-00075 Greiner, E. C.; Alexander, F. C.; Roach, J.; St. John, V. S.; King, T. H.; Taylor, W. P. and Gibbs, E. P. Bluetongue Epidemiology in the Caribbean Region: Serological and Entomological Evidence from a Pilot Study in Barbados. Medical and Veterinary Entomology 4:289-295. 1990 R-00852 Greiner, E. C.; Calderwood-Mays, M. B.; Smart, Jr., G. C. and Weisbrode, S. E. Verminous Mastitis in a Mare Caused by a Free-Living Nematode. Journal of Parasitology 77:320-322. 1991 R-00196 Greiner, E. C.; Fadok, V. A. and Rabin, E. B. Equine Culicoides Hypersensitivity in Florida: Biting Midges Aspirated from Horses. Medical and Veterinary Entomology 4:375-381. 1990 R-00330 Heard, D.; Kollias, G.; Buss, D.; Caligiuri, R. and Coniglario, J. Comparative Cardiovascular Effects of Intravenous Etorphine and Carfentanil in Domestic Goats (Capra capra). Journal of Zoo and Wildlife Medicine 21:166-170. 1990 R-00475 Isaza, R.; Courtney, C. H. and Kollias, G. V. Parasite Control Programs Used in Collections of Wild Ruminants. Zoo Biology 9:385-392. 1990 R-00801 Jacobson, E. R. Chronic Upper Respiratory Tract Disease of Free-Ranging Tortoises, Xerobates agassizii. Journal of Wildlife Diseases 27:296-316. 1991 R-01083 Jacobson, E. R.; Homer, B. and Adams, W. Endocarditis and Congestive Heart Failure in a Burmese Python. Journal of Zoo and Wildlife Medicine 22:245-248. 1991 R-00934 Larsen, R. E.; Littell, R.; Rooks, E.; Adams, E. L.; Falcon, C. and Warnick, A. C. Bull Influence on Conception Percentage and Calving Date in Angus, Hereford, Brahman and Senepol Single Sire Herds. Theriogenology 34:549-568. 1990 R-01204 Madison, J. B.; Dreyfuss, D. J. and Charlton, C. Illeal Diverticulum as a Cause of Chronic Colic in a Horse. Journal of American Veterinary Medical Association 198:453-454. 1991 R-01206 Madison, J. B.; Summer, M. and Spencer, P. A. Relationship Among Synovial Membrane Histopathologic Findings, Synovial Fluid Cytologic Findings, & Bacterial Culture Results in Cases of Equine Infectious Arthritis Cases of Equine Infectious Arthrit Journal of American Veterinary Medical Association 198:1655-1661. 1991 R-01205 Madison, J. B.; Young, D. and Richardson, D. Repair of Shoulder Luxation in a Horse. Journal of American Veterinary Medical Association 198:455-456. 1991 R-00011 Miller, T. R.; Gaskin, J.; Whitley, R. D. and Wittcoff, M. L. Herpetic Keratitis in a Horse. Equine Veterinary Journal 10:15-18. 1991 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction College of Veterinary Medicine, Components of 97 R-01451 Nixon, A. J.; Krook, L. P.; Roth, J. E. and King, J. M. Pulsed Carbon Dioxide Laser for Cartilage Vaporization and Subchondral Bone Drilling in Horses II. Morphologic and Histochemical Reaction. Veterinary Surgery 20:200-208. 1991 ' R-01429 Reddy, G. R.; Chakrabarti, D.; Yowell, C. A. and Dame, J. B. Sequence Microheterogenity of the Three Small Subunit Ribosomal RNA Genes of Babesia bigemina: Expression in Erythrocyte Culture. Nucleic Acids Research 19:3641-3645. 1991 R-00523 Reep, R. L. and O'Shea, T. J. Regional Brain Morphometry and Lissencephaly in the Sirenia. Brain, Behavior and Evolution 35:185-194. 1990 R-00217 Reep, R. L.; Johnson, J. I.; Switzer, R. C. and Welker, W. I. Manatee Cerebral Cortex: Cytoarchitecture of the Frontal Region in Trichechus manatus latirestris. Brain, Behavior and Evolution 34:365-386. 1990 R-01450 Roth, J. E.; Nixon, A. J.; Gantz, V. A.; Meyer, D. and Mohammed, H. Pulsed Carbon Dioxide Laser for Cartilage Vaporization and Subchondral Bone Perforation in Horses: I. Technique and Clinical Results. Veterinary Surgery 20:190-199. 1991 R-00229 Sherman, K.; Turner, T. A.; Calderwood-Mays, M. B. and Asbury, A. C. Maligant Seminoma in a Horse. Journal of Equine Veterinary Science 10:271-274. 1990 R-00314 Spalding, M. G. Antemortem Diagnosis of Eustrongylidosis in Wading Birds (Ciconiiformes). Journal of the Colonial Waterbird Society 13:75-77. 1990 R-00270 Spalding, M. G.; Greiner, E. C. and Green, S. L. Haliciephalobus (Micronema) Deletrix Infection in Two Half-Sibling Foals. American Veterinary Medical Association 196:1127-1129. 1990 R-00995 Suarez, S. S.; Redfem, K.; Raynor, P.; Martin, F. and Phillips, D. M. Attachment of Boar Sperm to Mucosal Explants of Oviduct In Vitro: Possible Role in Formation of Sperm Resevoir. Biology of Reproduction 44:998-1004. 1991 R-01237 Telford, Jr., S. R. and Forrester, D. J. Hemoparasites of Raccoons (Procyon lotor) in Florida. Journal of Wildlife Diseases 27:486-490. 1991 R-00928 Telford, Jr., S. R. and Forrester, D. J. Piroplasms of White-Tailed Deer (Odoeoileus virginianus) in Florida. Florida Field Naturalist 19:49-51. 1991 R-00464 Telford, S. R.; Forrester, D. J.; Wright, S. D.; Roelke, M. E.; Ferenc, S. A. and McCown, J. W. The Identify and Prevalence of Trypanosomes in White-Tailed Deer (Odocoileus virginianus) from Southern Florida. Helminthological Society of Washington 58:19-23. 1991 R-01016 Wilson, N. A.; Telford, Jr., S. R. and Forrester, D. J. Ectoparasites of a Population of Urban Gray Squirrels (Sciurus carolinensis Gmelin) in Northern Florida. Journal of Medical Entomology 28:461-464. 1991 Non-Refereed Publications: N-00013 Bolon, B. and Buergelt, C. D. A Simple Field Necropsy Technique for Examination of the Equine. Equine Practice 12:26-29. 1990 Research Grants: Allred D. R. Identification Cloning & Immunogenicity of Anaplasma Marginale Invasins. U S Dept of Agriculture. 09/01/90-08/31/93. $138,150 Brown M. B. Respiratory Mycoplasmosis in Pet Birds: Potential for Vaccine Development. Morris Animal Foundation. 09/01/90-08/31/92. $5,000 Brown M. B. IGA FC Receptors on Mycoplasmas & Impact on Disease. National Institutes of Health. 02/01/90-01/31/95. $78,979 Burridge M. J. Improved Animal Vaccines Through Biotechnology Phase II Anaplasmosis & Babesiosis. Int Development Coop Agency. 09/30/87-09/30/92. $799,999 Butcher G. D. Nutrition & Health Interrelationships. UF Research Foundation, Inc. 08/01/90-08/01/93. $7,450 Butcher G. D. Evaluation of Chicken Feed Diets Supplemented with Probiotic Pelletmate. UF Research Foundation, Inc. 10/26/90-10/26/93. $2,000 Butcher G. D. Evaluation of Cell Mediated & Humoral Immune Systems of Chicken Feed Diets. UF Research Foundation, Inc. 01/15/91-01/15/93. $2,000 Butcher G. D. General Research. UF Research Foundation, Inc. 04/30/91-04/30/93. $500 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instuction |