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Front Cover | |
Table of Contents | |
Map of research center locatio... | |
1990 report by the Dean for... | |
1990 selected research accompl... | |
Changes in faculty | |
Research administration | |
Agricultural and extension... | |
Agricultural engineering | |
Agronomy | |
Animal science | |
Dairy science | |
Editorial | |
Entomology and nematology | |
Food and resource economics | |
Food science and human nutriti... | |
4-H and other youth programs | |
Fruit crops | |
Home economics | |
Microbiology and cell science | |
Environmental horticulture | |
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 | |
Brooksville subtropical agricultural... | |
Everglades REC - Belle Glade | |
Citrus REC - Lake Alfred | |
Central Florida REC - Apopka, Leesburg,... | |
Ft. Lauderdale REC - Ft. Laude... | |
AREC - Ft. Pierce | |
Gulf Coast REC - Bradenton,... | |
AREC - Hastings | |
AREC - Jay | |
AREC - Ona | |
North Florida REC - Quincy, Marianna,... | |
Southwest Florida REC - Immoka... | |
Tropical REC - Homestead | |
Florida medical entomology lab... | |
Director's financial report | |
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Front Cover
Front Cover Table of Contents Page i Page ii Map of research center locations Page iii 1990 report by the Dean for Research Page 1 Page 2 1990 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 Research administration Page 23 Agricultural and extension education Page 24 Agricultural engineering Page 25 Page 26 Page 27 Page 28 Agronomy Page 29 Page 30 Page 31 Page 32 Page 33 Animal science Page 34 Page 35 Page 36 Page 37 Page 38 Dairy science Page 39 Page 40 Page 41 Editorial Page 42 Entomology and nematology Page 43 Page 44 Page 45 Page 46 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 4-H and other youth programs Page 59 Fruit crops Page 60 Page 61 Page 62 Home economics Page 63 Microbiology and cell science Page 64 Page 65 Page 66 Environmental horticulture Page 67 Page 68 Page 69 Page 70 Plant pathology Page 71 Page 72 Page 73 Page 74 Poultry science Page 75 Page 76 Soil science Page 77 Page 78 Page 79 Page 80 Page 81 Statistics Page 82 Vegetable crops Page 83 Page 84 Page 85 Page 86 School of forest resources and conservation Page 87 Forestry Page 88 Page 89 Page 90 Page 91 Fisheries and aquaculture Page 92 Page 93 Wildlife and range sciences Page 94 Page 95 Page 96 College of veterinary medicine Page 97 Page 98 Page 99 Page 100 Brooksville subtropical agricultural research station Page 101 Everglades REC - Belle Glade Page 102 Page 103 Page 104 Citrus REC - Lake Alfred Page 105 Page 106 Page 107 Page 108 Page 109 Page 110 Page 111 Page 112 Page 113 Central Florida REC - Apopka, Leesburg, Sanford Page 114 Page 115 Page 116 Page 117 Page 118 Ft. Lauderdale REC - Ft. Lauderdale Page 119 Page 120 Page 121 Page 122 AREC - Ft. Pierce Page 123 Page 124 Gulf Coast REC - Bradenton, Dover Page 125 Page 126 Page 127 Page 128 Page 129 AREC - Hastings Page 130 AREC - Jay Page 131 AREC - Ona Page 132 Page 133 North Florida REC - Quincy, Marianna, Monticello Page 134 Page 135 Page 136 Page 137 Southwest Florida REC - Immokalee Page 138 Page 139 Tropical REC - Homestead Page 140 Page 141 Page 142 Page 143 Page 144 Florida medical entomology lab - Vero Beach Page 145 Page 146 Page 147 Director's financial report Page 148 Page 149 Back Cover Page 150 |
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.-I tl Contents i Contents MAP OF RESEARCH CENTER LOCATIONS ........................... ...... ........................................ ...........................iii REPORT BY THE DEAN FOR RESEARCH..........................................................................................................................1 SELECTED RESEARCH ACCOMPLISHMENTS ........................... ...... ...................................................................3 CHANGES IN FACULTY....................................................................................... ....................... ......................21 RESEARCH ADMINISTRATION .................................................................... ....... .....................................................23 CAMPUS RESEARCH PROGRAMS* ............................ .......................................................................................... 23 Center for Cooperative Agricultural Programs FAMU ..........................................................................................23 C enter for A aquatic Plant R research ................................................................................................................................... 23 Biomass Energy Systems ........................................................... ... .... 23 Agricultural and Extension Education ................................ ................................. ................... 24 A agricultural Engineering .................................................. .. ................ ...................................... ...... ...............25 Agronomy ............... .......... ............ ..............................................................29 A nim al Science...................................... ... .......... .... .... ...................................... ........... 34 D airy Science ....................................... .......................... .... .. ........................................... ......... ....................... 39 Editorial ..... ....... ........................................................................ 42 Entom ology and N em atology ......................................................... .......................................... .................................43 Food and R source Econom ics ........................................ ......................................................................................51 Food Science and Human Nutrition ..........................................................................................................................55 4H and Other Youth Programs ............. ................................................................................................59 Fruit C rops ......................................... ..................................................... ... .... ...................... ...........................60 H om e Econom ics ................................................................... ..................................... ...................... .... ...63 Microbiology and Cell Science............................................................................................................................64 Environm mental H horticulture ............................................................................................................................................ 67 Plant Pathology ................................................................................................................................................................. 71 Poultry Science ................................................................... .. .. ...................................................................................75 Soil Science........................................................... ....... ............................. ........... .... ......... .....................77 Statistics ................... ...................................................................... ................. ..............................................82 V vegetable C rops ................................................................................................................................................................83 School of Forest Resources and Conservation .............................................. .................... 87 Forestry ....................... .................................................................... ............................................................88 Fisheries and Aquaculture Sciences ... ......... ............................................................................................................92 Wildlife and Range Sciences ................................................................................ .............. ....... .............94 College of Veterinary Medicine, Components of .................................... ...... .............................................97 *PUBLICATIONS A list of manuscripts approved for publication, together with the journal in which publication was proposed is given for each unit. At the time of this report, many of these will have been published, while others will still be in press or pending publication. We have made no attempt to supply bibliographic data on those published. For information regarding present status of these manuscripts or to obtain reprints, one of the authors may be contacted directly. ii Contents AGRICULTURAL RESEARCH AND EDUCATION CENTERS* ...................................................... 101 Brooksville Subtropical Agricultural Research Station ............................... .................................................... 101 Everglades REC Belle G lade ..................................................... ............................ 102 Citrus REC Lake Alfred ..................................................................... 105 Central Florida REC Apopka, Leesburg, Sanford ............................................... ........... ................ 114 Ft. Lauderdale R EC .............................................................................. ........................... 119 AREC Ft. Pierce ................................................................ 123 G ulf C oast REC -Bradenton, D over..................................... .. ....................................... ..................................125 A R EC H astings ...................................................... ................... .. ......... ..... .. ... .... .. ....................... 130 A R EC -Jay ............................................................................ ..... ...................... ......................... 131 A R EC O na .................................................................................................. ........ ..... ......... ............ ....... ... 132 North Florida REC-Quincy, Marianna and Monticello ...................................................................................... 134 Southwest Florida REC-Im mokalee ............................. .. ................................................... ................................... 138 T tropical R EC H om estead............................................................... ...... ............. ... .......................... 140 Florida Medical Entomology Lab Vero Beach ........................ ......... .. ...... ........................... 145 DIRECTOR'S FINANCIAL REPORT .................................................... ...... 148 *PUBLICATIONS A list of manuscripts approved for publication, together with the journal in which publication was proposed is given for each unit. At the time of this report, many of these will have been published, while others will still be in press or pending publication. We have made no attempt to supply bibliographic data on those published. For information regarding present status of these manuscripts or to obtain reprints, one of the authors may be contacted directly. Map of Research Center Locations iii Hastings * 1923 Gainesville * 1906 IFAS Statewide Research and Education Centers Dates Established Leesburg * 1929 Brooksville Ap 1932 1 '( Dover 1925 I *Or 191 Bradenton 1925 1 965 1933 1 Vero Beach ,ake Alfred 1956 1919 la ' 35 Ft. Pierce 1948 x' \ 0 00 o i 1990 Report by the Dean for Research 1 Food and fiber production as well as natural resource protection and conservation in Florida experienced several challenges during the 1980s as a result of natural and/or man's intervention. The state received three major freezes during the 1980s that significantly changed the citrus industry in the state. The presence of pesticides (Temik, EDB, etc.) and nitrate in groundwater as well as eutrophi- cation of several major lakes were attributed to agricultural production (Apopka, Okeechobee, etc.). These water quality issues resulted in new practices and/or policies for applying and handling pesticides as well as increased emphasis on their review by the Environmental Protection Agency (EPA). Also, the latter part of the decade had insufficient rainfall; thus, increasing the need to improve water management and increased irrigation efficiency. The above, along with the identification of new diseases (Citrus Canker, Peanut Stripe Virus) or new approaches to existing diseases (Brucellosis) as well as new insect problems, have impacted the agricultural industry and the way it conducts business in Florida. Each of these as well as others have significantly influenced the IFAS research agenda. Some changes occurred abruptly in response to an identified need, while others were more gradual and were an attempt to anticipate a problem prior to its occurrence. The 1990s are certain to bring further changes in the availability and use of pesticides, fertilizer and water as well as policies governing agricultural and natural resource management in the state. Thus, it is important that IFAS research programs be multifaceted and flexible to address issues broader than those of the past. These include food safety, enhanced compatibility of agriculture, natural resources and the environment, enhanced profitability of commercial aquaculture, improved efficiency and protec- tion of soil and water resources, development of new agricultural enterprises, improved production systems for forestry, computerized decision support systems and exploitation of biotechnology for Florida. A product of the above has prompted increased emphasis in the following four areas: 1. Alternative Pest Control Strategies Identify Pest Resistance Genes Integrated Pest Management Biological Control Agents Improved Application Technology Management and Control Strategies Plant and Animal Resistance through Breeding 2. Improved Animal and Plant Production Systems Production Decision Models New Gene Insertions Mapping and Expression Germplasm Preservation Marketing and Trade Issues Sustainable Agricultural Systems 3. Food Safety and Nutrition Development of Methods for Detection of Biological Contaminants Nutrient Uptake * Human Nutrition Requirements Improved Procedures for Handling Seafood 4. Environmental and Water Quality Fate and Movement of Agricultural Chemicals in the Environment Improved Farm Management Practices Natural Resources Management Species Diversity Social and Economic Issues Ground and Surface Water Protection and Management The overall research programs of IFAS serve to increase the understanding of processes occurring in food and fiber production and natural resource sciences, to develop and effectively use natural and human resources and to translate new knowledge into action. The products of this activity for the citizens of Florida are improvement in their quality of life, their food and fiber, their resources and the communities in which they live. During the past year, a new building was constructed and dedicated at the Southwest Florida Research and Educa- tion Center at Immokalee, a Turf Facility in Gainesville was dedicated in memory of Dr. Granville Horn, construc- tion of new greenhouse facilities behind Fifield Hall on the Gainesville campus were completed, construction of a new building for the Department of Entomology and Nematol- ogy was initiated and is due for completion in the fall of 1990. Construction has also been initiated of a new laboratory facility at the Everglades Research and Educa- tion Center, Belle Glade. Research completed by the Florida Agricultural Experi- ment Station, IFAS/University of Florida, 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 from the previous year, 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 IFAS, but rather to summarize selected areas and to identify those faculty conducting that research. .,'t.,i Scierice Library J AN 0 9 199 lnesM. Iavidson Dean for R search and Director ;r'-i of FlY qda Agricultural Experiment S...vrStatyon f Florida ---"UtMrnvety of Florida 1990 Selected Research Accomplishments 3 ANIMAL SCIENCES New Stargrasses: Stargrasses are perennial grasses that are closely related to bermudagrass. These grasses are important to the tropical livestock industry for grazing, hay and silage. They generally have no rhizomes (underground stems) but spread rapidly by long, robust stolons (runners) which could attain 15 to 20 feet in 30 days and develop into a dense stand 24 inches tall in 90 days. When grazed under a rotational system at a 4-wk frequency, grasses produce high yields of excellent quality forage averaging 9 to 14% crude protein and 56 to 60% digestibility. Animal performance has been good averaging 0.9 to 1.2 pounds per day gain with a stocking rate of three 600 lb steers per acre. Live weight gain per acre has ranged from 525 to 720 pounds per acre. These data are far superior to the 375 pounds live weight gain per acre on bahiagrass in Central Florida. Agricultural Research and Education Center, Ona P. Mislevy, Professor, Project Leader Energy and Protein Supplementation of Ammoniated Tropical Grass Hay. Feeding value for livestock of most tropical grass hay is poor. Anhydrous ammonia treatment improves the feeding value of poor quality hay by chemically breaking down plant parts that restrict digestibility. Crude protein concentration of ammoniated hay is greater than that of nontreated hay due to the addition of nitrogen from anhydrous ammonia, and in many cases, is greater than the animal's crude protein requirement. However, the increased crude protein concentration in ammoniated hay is non-protein- nitrogen, and research suggests that young growing cattle require true protein to maximize protein growth. During the winter of 1988, steer calves (500 Ib) were fed ammoniated hay plus the following supplements: (1) no supplement, (2) 1 lb cottonseed meal/head/day, (3) ad libitum molasses, and (4) ad libitum molasses plus 1 lb cottonseed meal/head/day. Calves fed only ammoniated hay gained 0.5 lb/day. This level of gain is not adequate to develop heifers for breeding as yearlings. However it provides a base to which supplementation programs can be applied. Cattle fed ammoniated hay plus molasses con- sumed 6 Ib molasses/day ($0.25) and gained .8 lb/day. Cattle fed ammoniated hay plus 1 lb cottonseed meal ($0.15) gained 1.0 lb/day. Cattle fed ammoniated hay only were deficient in protein, and the response to protein was greater than the response to energy. Cattle fed ammoni- ated hay plus molasses plus 1.0 Ib cottonseed meal gained 1.7 lb/day. This level of performance is adequate for developing yearling heifers to breed and calve at two years of age. Agricultural Research and Education Center, Ona W. F. Brown, Associate Professor, Project Leader Carbohydrate Digestion by Neonatal Foals. Progress in neonatal care of premature and stressed foals has made nutritional support of these animals critical. When mares' milk is not available or the foal has an intolerance for mares milk, synthetic milk replacers are essential. A key component of these products is the carbohydrate fraction. A study of the ability of the neonatal foal to digest and absorb glucose, lactose, maltose and sucrose indicates that from birth to 5 days of age foals have little or no ability to utilize sucrose and maltose. Glucose was absorbed readily at days 1,3 and 5 and resulted in a serum glucose peak at 15 to 30 minutes post feeding. Lactose was also readily digested and resulted in a glucose peak at 30 to 45 minutes. Results indicate that lactose is the preferable carbohydrate for foals less than 1 week of age. If the foal is unable to utilize lactose, the best alternative is glucose if it can be fed without disturbing the osmotic balance of the gut. Department of Animal Science E. A. Ott, Professor, Project Leader Tenderization in Brahman crossbred cattle. Traditionally, Brahmanand Brahman crossbred cattle have been discriminated against by the feeding and packing industries. A portion of this discrimination has been attributed to lower meat quality, especially tenderness, for carcasses with heavy Brahman influence. Previous studies did not fairly compare Brahman crossbred cattle because they did not take into account the fact that most of these type cattle are larger framed and later maturing than English crossbred cattle. This research project found that steaks from steers with 1/2 or higher percentage Brahman breeding were less tender than steaks from 1/4 or lower percentage Brahman, even when slaughtered at compa- rable slaughter end points. Percentage Brahman breeding did not effect flavor, juiciness or incidence of off-flavor. A postmortem aging study suggested that the observed tenderness differences may be due to a differential response to the aging process. If mechanisms causing this differen- tial response of breed type to postmortem aging could be better understood and controlled, tenderness could be assured in not only Brahman cattle but other types of cattle as well. Department of Animal Science D. D. Johnson, Associate Professor and D. D. Hargrove, Professor, Project Leaders Round Bale Silage. The protein and digestible energy levels of perennial grass forage declines rapidly as the forage matures. Researchers recommend that bermudagrass be cut every 4 to 5 weeks during the summer for good quality and yield of forage. However, frequent rains during the summer often result in field losses after cutting or delay harvest of hay while 4 1990 Selected Research Accomplishments waiting for better weather. In either situation, the hay quality declines. Harvesting as wet forage and ensiling is common for crops such as corn and sorghum but not widely used for forages such as bermudagrass. The high investment cost of the conventional silage harvesting and storage equipment often makes chopped silage too expensive for smaller operations. Round bale silage using conventional hay making equipment and storing in plastic has been researched for the past 6 years. It is essential that air be kept out of the forage to prevent molding and rotting. The "stretch wrap" system of wrapping individual bales with polyethylene film appears to be superior to individual bale bags and long tubes. It costs approximately $20 per ton of dry forage to prevent spoilage. It is essential that the polyethylene be resistant to sunlight degradation and have a low permeability to oxygen. Wilting the forage for 2 to 4 hours in good drying conditions decreased moisture from 75% to 55%, reduced bale weight, reduced wrapping costs, reduced losses during storage and increased dry matter consumption and performance in cattle. The round bale silage system makes it feasible for small produc- ers to harvest perennial grass forages every 4 to 5 weeks by the calendar. Hay making when the weather permits is suggested but harvesting as round bale silage at other times insures good quality. Harvesting high quality forage improves cattle reproduction rate and calf weaning weight, reduces the need for supplemental feeds and should improve profits on many ranches. Department of Animal Science W. E. Kunkle, D. B. Bates R. P. Cromwell, and C. G. Chambliss, Associate Professors, Project Leaders Cumulative Production and Time Trends in Weaning Performance of Two Lines of Angus Cattle Selected for Different Growth Patterns. The cumulative weaning weight produced by a cow over her lifetime provides an efficiency estimate which com- bines reproductive efficiency and maternal ability. This efficiency index was compared between two lines of Angus cattle selected for estimated high mature weight or rapid maturing rate. Smaller, faster maturing cows had a larger cumulative production due to a higher reproductive efficiency which compensated for lower weaning weight of their calves. Changes in cow weight at weaning, calf weaning weight and pounds of calf weaned per 1000 pounds of cow were estimated over an 8-year selection period. Of these three variables, cow weight at weaning increased, while the other two decreased. This declining efficiency was likely caused by reduced milk production relative to calf weight in the large size line. Future selection of larger cattle by this criteria should consider increasing milk production to satisfy the calves' demand. Subtropical Agricultural Research Station, Brooksville J. J. Beltran, USDA, ARS, Adj. Associate Professor, Project Leader Trichomoniasis Impacts the Profitability of a Beef Herd. Trichomoniasis has emerged as a major venereal disease of cattle over the past several years. Trichomoniasis is caused by a protozoa called Tritrichomonas foetus. The bull is the carrier of the disease; but he does not show signs of the disease. However, once infected, he remains infected. There is no treatment available. The organism is spread from the bull to the cow at breeding. The trichomonads multiply and become responsible for the signs observed with this disease, early embryonic deaths, infertility, uterine infections and occasional abortions. How dramati- cally will the disease impact an operation and its profit- ability? We can now use the information available about trichomoniasis to: 1) generate computer simulation models; 2) compare disease dynamics and outcomes; and 3) broaden our understanding of how the disease influences a breeding herd and the subsequent calf-crop. What can we expect of a breeding season? Herd 1 (no infected bulls) will have 96% of the cows bred and pregnant by 63 days into the breeding season. Herd 2 (1 infected bull) will have 82% pregnant at 63 days and 95% after 168 days of breeding. Herd 3 (2 infected bulls) will have only 48% of the cows pregnant by 63 days and only 69% at 168 days. What kind of a calf crop can we expect? Herd 1 will wean 27 calves more than Herd 2 (14% more), and 95 calves more than Herd 3 (50% more). Calves in herd 2 will be 22 pounds (4%) lighter on average than calves in herd 1. Herd 3 calves will be 53 pounds (10% lighter than the non-diseased herd 1. Since the calves in herds 2 and 3 are both fewer in number, lighter in weight, and less uniform at the target weaning date, the revenue returned is also reduced. Calves in Herd 2 will have gross revenues of $3,500 less (5.1%) than Herd 1, and Herd 3 will have gross revenues of $24,500 less (35.2%) than herd 1. That is, $16 less per calf sold in Herd 2, and $37 less per calf sold in Herd 3. What is the average return per cow that went into the breeding season? For Herd 2 it is $18 less, and for Herd 3, it is $123 less revenue per cow compared to the cows in disease-free Herd 1. Department of Large Animal Clinical Sciences D. O. Rae, Assistant Professor, Project Leader Prevalence of Paratuberculosis in Cattle of Florida. Paratuberculosis (Johne's disease), an insidious infectious disease of ruminants caused by Mycobacterium paratuberculosis, occurs worldwide. It has been estimated that 5 to 20% of cattle in the United States are infected. Precise data of prevalence of paratuberculosis for the state of Florida have been lacking. A survey was conducted at the College of Veterinary Medicine from 1986 through 1987 to obtain information on the status of M. ptbc. infection in cattle in Florida. Serum samples from 3,874 beef cattle from 392 herds and 617 dairy cattle from 60 herds were obtained and tested with an ELISA method. 1990 Selected Research Accomplishments 5 Samples from approximately 10 cattle were obtained from each herd, representing 5 geographic regions throughout the state of Florida and 3 herd sizes (small = 0-49 head; medium = 50-99 head and large > 100 head). Results revealed a prevalence of 8.6% of circulating antibodies to M. ptbc. in beef cattle and 17.1% in dairy cattle. Calculat- ing for the entire cattle population of the state of Florida, it would mean that an estimated 86,000 beef cattle and 30,000 dairy cattle are infected. In beef and dairy cattle, prevalence increased with increasing herd size. It was concluded that detectable circulating antibodies to M. ptbc. are widespread in Florida cattle and will cause the producers significant annual economic losses estimated to be $9 million annually. Departments of Comparative Pathology and Large Animal Clinical Sciences C. D. Buergelt, Associate Professor and R. K. Braun, Professor, Project Leaders Eustrongylidosis in Florida Wading Birds. Wading bird populations have declined at an alarming rate in southern Florida, an area where the landscape has been historically characterized by the presence of these birds. This decline has occurred inspite of the acquisition and attempt at preservation of vast areas of their historic breeding and foraging grounds. A survey to determine the effects of diseases and parasites on the reproductive success of wading birds found that a parasitic disease, caused by infection with the nematode parasite Eustrongylides sp., may be of significance in these recent declines. Mortality can approach 100% of nestlings in some colonies. A technique was developed for the diagnosis of this disease in live nestlings, and applied to many colonies in southern Florida to determine which colonies are at risk. Sampling of the intermediate hosts of this parasite, fish and aquatic oligochaetes, at sites important to wading birds has led to the discovery that localized sites in which human waste pollution and habitat alteration have occurred may be important in the transmission of this disease. Department of Infectious Diseases Donald J. Forrester, Professor, Project Leader Resistance to Mastitis. Although antibiotic usage has gained wide acceptance in the food animal industry, recent concerns have been expressed that the indiscriminate use of antibiotics may result in populations of bacteria that are resistant to antibiotics. These antibiotic-resistant microorganisms may represent a potential reservoir for spread of antibiotic resistance to the human population. Streptococcal species isolated from dairy cows with clinical mastitis were obtained from mastitis research workers in Florida, Louisiana, New York, Vermont, Washington, and West Virginia. Seventy-two streptococcal isolates were tested for resistance to erythromycin, lincomycin, oxytetracycline, penicillin, spectinomycin, streptomycin, and tetracycline. None of the strains were resistant to penicillin, but at least some of the strains were resistant to all other antibiotics tested. Resistance to multiple antibi- otics was observed in all streptococcal species tested. Twenty-one (30%) isolates were tetracycline resistant (Tcr), and were chosen for further study. Studies to determine the specific genetic basis for tetracycline resistance suggest that bovine streptococci may differ in their distribution of Tet determinants, and may carry determinants not found frequently in human isolates. If these findings are confirmed in larger studies, it would suggest that Tcr bovine streptococci may not act as a reservoir of human disease or spread their Tet determinants into human strains. Department of Infectious Diseases M. B. Brown, Assistant Professor, Project Leader Effect of Heat Stress on Fertility in Dairy Cattle. Holstein heifers were superovulated utilizing a sequence of FSH and Prostaglandin F-2alpha injections. Following the initial onset of heat, heifers were heat stressed for a 10-hour period, cooled to normal body temperatures and then artificially inseminated. Effect of such a heat stress, compared to non-heat stressed control animals, on embryo survival was evaluated at day 7 post insemination. Only 12% of embryos recovered from heat-stressed heifers were normal compared with 68.4% of embryos from thermoneutral treated heifers. These results indicate the extreme sensitivity of the maturing oocyte to heat stress and emphasize to dairy producers that cattle need to be protected from hyperthermic conditions even before insemination, as soon as cows are detected in heat. This short-term exposure to elevated temperatures had major long-term negative carry-over effects on subsequent embryonic development. Additional studies also indicate that 7 days of intermittent heat stress between days 1 to 7 post insemination are as detrimental to fertility as the 10- hour exposure on the day of heat. This period of sensitiv- ity to heat, days 0 to 7, can be partially bypassed by transfer of good quality embryos into recipient heat stressed lactating cows at day 7 of the estrous cycle. This use of embryo transfer was demonstrated under commercial farm conditions in Florida. Department of Dairy Science and Large Animal Clinical Sciences W. W. Thatcher and M. Drost, Project Leaders Effect of Bovine Growth Hormone on Resistance of Dairy Cows to Heat Stress. In 1989, the Milk Checkoff Program funded by the dairy producers of Florida funded a grant entitled "Effect of heat stress and bovine growth hormone on leukocyte function 6 1990 Selected Research Accomplishments in cattle". There were two main objectives. The first was to determine whether heat stress reduced the ability of cows to fight off disease, as measured by various test of immune function in the mammary gland and blood. The second objective was to test whether bovine growth hormone (called bovine somatotropin or bST) modified the effects of heat stress. Cows received either bST or placebo and were maintained in either a shade barn with evaporative cooling and forced ventilation (thermoneutral group) or in a dry lot without access to shade (no-shade group). Results indicated that heat stress reduced certain aspects of immune function in the mammary gland, while having no effect on immune function in peripheral blood. Perhaps some of the increase in mastitis in the summer may be due to a reduction in mammary defenses against bacteria. While not affecting immune function, bST- treated cows were less able to maintain body temperature in the no-shade group than control cows. The bST increased milk production to the same degree in both environmental groups, however. These results emphasize that cows treated with bST or otherwise managed to have a high level of milk production must be maintained during the summer so that exposure to heat stress is minimal. Department of Dairy Science P. J. Hansen and R. P. Natzke, Project Leaders IGF Action in the New Born Calf. The insulin-like growth factors (IGF-II) are growth- promoting proteins found at high levels in cow's colostrum and at lower levels in later milk. The presence of these regulatory proteins in mammary secretions has generated significant interest with respect to their possible physi- ological functions in the mother and neonate. Research conducted in collaboration with Dr. H. Herbert Head, Chul-Young Lee, Cheryl Feinstein, Frank Michel and Dale Hissem, and funded by the State of Florida Milk Checkoff Program has now identified important markers of IGF action in the newborn calf. Specifically, cellular receptors for IGF-I and IGF-II have been characterized on a number of developing tissues including the gastrointestinal tract (probable first site of contact with ingested IGF). Further- more, endogenous levels of IGFs in the newborn calf were shown to be low. Thus, maternally-derived IGFs may contribute to the early postnatal growth of calves by binding to tissue receptors and stimulating cellular division and differentiation. The next aspect of this study will evaluate the natural variation in colostral IGF levels with respect to possible differences in calf survival and growth. Department of Dairy Science F. A. Simmen and H. H. Head, Project Leaders Boron's Influence on Broiler Breeder Performance. Boron compounds are commonly used as water treatments, detergents, algicides, insecticides and fertilizers. Wood shavings, commonly used as litter material in poultry houses, may contain boron as it is often used as a wood preservative. Poultry producers may also use boron-based insecticides to control beetles in litter. If these insecticides are spread directly on top of the litter, the birds often consume large amounts of boron in a short time period. Two experiments were conducted to study the effects on broiler breeder performance of supplementing practical corn-soybean meal diets with 250 ppm boron. Forty-five male and 45 female broiler breeders were selected and placed in individual 40 x 60 cm cages for weeks (21 to 37 weeks of age). Reagent grade boric acid furnished 0 and 250 ppm boron in the diet. Body weights were maintained at standard recommendations by controlled feed alloca- tion. Females fed boron had numerically lower fertility and significantly lower hatchability in each of three fertility trials. Males produced three times more damaged sperma- tozoal cells compared with the control birds. If boron- based insecticides are used in poultry houses, care must be taken to ensure that consumption of the products in minimal or poor performance may result. Department of Poultry Science R. D. Miles, Professor, Project Leader Processors Continue to Look for More Cost Efficient Methodologies to Remove Breast Meat from the Broiler Carcass. The meat can be most efficiently removed immediately after carcass chilling; however, this often results in toughness associated with the final cooked product. To prevent this toughness development, carcasses are often held for a recommended 3-6 hours before boning, resulting in a minimum loss of approximately $1,000,000 in in- creased drip loss, energy, storage and labor costs to a plant averaging 300,000 birds per week. An in-line procedure has been developed involving carcass electrical stimulation and muscle tensioning that alleviates the toughness problem associated with boning carcasses immediately after chilling. Currently, the patentability of the procedure is being investigated. Once this is accomplished, suitable equipment can be developed. Department of Poultry Science D. M. Janky, Professor, Project Leader ENGINEERING SCIENCES Cooling Systems for Dairy Housing. Heat stress causes declines in dairy milk production and animal fertility in Florida each summer. A fan and sprinkler cooling system has been developed that can reduce heat stress and improve dairy production. In 1989, a study was conducted that evaluated the effect of varying the water flow rate in this system. The results of this study 1990 Selected Research Accomplishments 7 indicate that recommended sprinkler flow rates can be reduced by a factor of four, reducing daily water usage from 100 gallons per cow to 25 gallons per cow while maintain- ing milk production. Departments of Agricultural Engineering and Dairy Science R. A. Bucklin, and D. K. Beede, Associate Professors, Project Leaders Composting and Utilization of Municipal Yard Waste. Municipal yard waste was banned from lined sanitary landfills by the 1988 Florida Solid Waste Act. Research at the University of Florida, in cooperation with the Florida Department of Agriculture and Consumer Services, the Florida Department of Environmental Regulation, and with Wood Resource Recovery, a private firm, has helped to develop methods of processing municipal yard waste into useful products. In a county-wide demonstration project, yard waste has been composted in three types of systems: in-bin composting, turned window composting, and static-pile composting. Nutrient amendments, such as poultry manure, are also being evaluated to enhance the composting process and to improve the quality of the end product. Other possible products include mulch and soil amendments. Research has also been conducted to evaluate and demonstrate the utilization of yard wastes by the homeowner, including composting and mulching. The application of this research will result in increased recycling of wastes and in lower costs to the consumer. Department of Agricultural Engineering R. A. Nordstedt, Associate Professor, Project Leader Factors Affecting the Efficiency of Overhead Irrigation in Container Production. Overhead irrigation application efficiency in container production ranges from 10 to 78% with a median of 25%. Several factors hypothesized to contribute to these low efficiencies were investigated. Water reaching the media surface was measured at two plant spacings and supplied by two sprinkler-head types. One pittosporum and two azalea cultivars produced in 3.8, 7.6 and 11.4 liter containers were used as test species. The percentage of water reaching the media surface was inversely related to the leaf area enclosed in a cylinder the diameter of the container at a spacing of 7.6 cm between containers, and inversely related to the total canopy leaf area when the containers were placed pot-to-pot. Canopy densities (LAI) were less correlated than leaf areas. Differences between sprinkler- head types were significant but dependent on container spacing. Container spacing and canopy shedding of water were determined to be the main factors associated with the low efficiencies. This information is important when calculating irrigation rates and in the development of new irrigation systems. Central Florida and Monticello Research and Education Centers R. C. Beeson, Jr., and G. W. Knox, Assistant Professors, Project Leaders FOREST SCIENCES Forest Water Quality Management. Environmental concern about the effects of forest harvest- ing and regeneration practices resulted in a longterm study in pine flatwoods since 1977. The data showed much higher ground water levels for about six years in clearcut areas, due to reduced plant water use, but increased runoff returned to normal within a few years. Leaving some tree vegetation will reduce these effects. Annual suspended sediment levels increased five-fold up to 14 mg/1 only during the dry treatment year. This was below the 37-56 mg/1 levels during the wet pre- treatment year, which in part were due to soil disturbance for watershed construc- tion. These sediment changes confirmed results from similar studies elsewhere. No real changes were found in nitrogen and phosphorus levels, but did occur in the potassium and calcium levels proportional to the severity of soil disturbance. Reducing soil disturbance and leaving protective buffer zones next to open water will reduce the effects. This information has been used to assist with the formulation and acceptance in Florida of the forestry Best Management Practices to reduce non-point source water pollution. Department of Forestry H. Riekerk, Associate Professor, Project Leader Response of Slash Pine to Air Pollution. Reports in the last few decades of air pollution decreasing forest productivity prompted the installation of a study to determine the effect of acid rain and ozone, singly and in combination, on the growth and physiology of slash pine growing in native soil in north Florida. Acid rain treat- ments were 3.3., 4.3 and 53 pH (7-to-3 ratio of sulfur to nitrogen) and were applied weekly based on a 70 year monthly average for the site. Ozone treatments were charcoal-filtered (about 0.3 ambient level), ambient, twice ambient and thrice ambient, and were applied 12 hours every day over the course of the 2 year exposure period. Initial response to the treatments was a growth increase in the highest acidity rain treatment, primarily due to a fertilizer effect. During the second year this increase has declined as the soil pH has decreased in this treatment. Ozone has affected tree growth as expected with the lowest ozone treatments (charcoal-filtered and ambient) growing better that the higher ozone treatments. Results 8 1990 Selected Research Accomplishments from this study will be used by the U.S. EPA to develop air quality standards in Florida and the southeastern U.S. Department of Forestry J. D. Johnson, Associate Professor, Project Leader Slash Pine Productivity. Slash pine forests are a major production system in Florida and the south east Coastal Plain. During the past ten years we have studied how environmental factors control the productivity of slash pines. Climate, soil nutrition, and water availability have been the focus of our research efforts. The effect of these environmental factors on slash pine leaf growth and physiology is of prime importance. Foresters have traditionally concentrated on stem wood production, and considered foliage to be constant in "closed canopy" forests. We have found large changes in total canopy foliage mass from year to year, and seasonally. These variations in canopy mass can be related to climate, and nutrition. Slash pines can be considered to be a conservative species living in a difficult environment; we have found low rates of photosynthesis, respiration, and transpiration compared to other tree species, but with higher efficiency. Department of Forestry, H. L. Gholz, and K. C. Ewel, Professors, Project Leaders. INSECT AND WEED RESEARCH Eradication of Fuller Rose Beetle on Exported Citrus. The Fuller rose beetle (FRB) is a major concern to citrus growers in California and Florida who opt to ship fresh citrus to Japan. This weevil-like pest lays its eggs beneath the fruit calyx ("button") and the Japanese fear that eggs on export citrus will supply the "seed" for its establishment in Japan. Both preharvest and postharvest research has been underway on both biological and chemical means for control. Scientists have found that: 1) By comparison to Florida, FRB adults are more fecund (lay more eggs) in California and Arizona, 2) Egg-laying preference by FRB favors the calyx of the fruit, 3) Adult FRB emergence from soil from April though January with a peak emergence during July. Suggested time for controlling adults in the tree is early June, mid-July and late August, 4) Less than 1% of mature fruit harvested in December 1989 and January 1990 from different groves had viable FRB eggs beneath the calyx whereas about 18% of the sampled fruit harbored nonviable eggs. Viable eggs represent adult activity from the previous month, 5) Three fungal patho- gens, Beauveria bassiana (AF-4), Metarhizium anisopliae and Paeclomyces fumoso-rosea are infectious to FRB larvae in the soil and show potential as biopesticides, 6) Two strains of the egg parasite, Fidiobia citri, have been introduced into Florida from Jamaica and Chile. The wasp-like parasites are being tested as potential biological control agents of FRB eggs, 7) Gamma radiation at 0.30 kGy has been used to induce 100% sterility of FRB eggs, 8) The insect growth regulator, Fenoxycarb at 100 ppm has been 100% effective as an ovicide of FRB eggs, 9) Vapor heat treatment of fruit infested with FRB eggs at 56-C for 10 min gave 100% mortaility, and 10) Industry degreening is effective in the removal of fruit calyxes infested with FRB eggs. Citrus Research and Education Center, Lake Alfred C. W. McCoy, Professor, Project Leader Non-chemical Alternatives for SubterraneanTermite Control. Barriers composed of soil particles 1.70-2.36 mm in diameter stopped penetration by the Formosan subterra- nean termite, while similar barriers of particle size in 1.00- 2.36 mm diameter excluded penetration by the eastern subterranean termite. When several size ranges were uniformly mixed, the resultant barriers composed of particles in the 1.18-2.80 mm size effectively shielded penetration by both termite species. The results indicate that this non-chemical measures may be used as a pre- construction application for homeowners in Florida where several subterranean termite species exist. Fort Lauderdale Research and Education Center N. Y. Su, Associate Professor, Project Leader Seasonal Incidence of Infestation of West Indies Mahogany by Mahogany Shoot Borer in Florida. The mahogany shoot borer, Hypsipyla grandella, is a major pest of mahoganies and related timber and ornamental trees in the tropics and southern Florida. To provide information for estimating the best timing for control efforts, we conducted a study of the seasonal incidence of infestation by the mahogany shoot borer during two growing seasons in southern Florida. We found that the total number of actively infested terminals per month peaked in May of each year, coinciding with the spring leaf flush of this tree. The seasonal nature of mahogany shoot borer attack will be exploited in developing control strategies for this pest. Fort Lauderdale Research and Education Center F. W. Howard, Associate Professor, Project Leader Protection of Food Commodities from Exposure to Structural Fumigants. Regulations for fumigation of structures for control of termites and other pests require that food be removed 1990 Selected Research Accomplishments 9 from structures or placed in protective enclosures. EPA has mandated that more efficacious protective enclosures be developed. Research has identified that nylon film is highly refractive to permeation by methyl bromide and sulfuryl fluoride. When selected refrigerated and cup- board foods were sealed in nylon bags, no fumigant residues were detected 6 hours after exposure, even when fumigant rates were ten times those used to control drywood termites. Therefore, the use of nylon polymer bags to protect foods from exposure to fumigants will result in decreased food losses and labor associated with structural fumigation practices. Fort Lauderdale Research and Education Center R. H. Scheffrahn, Assistant Professor and N. Y. Su, Associate Professor, Project Leaders Pinpointing St. Louis Encephalitis Virus Transmission in Florida. St. Louis encephalitis virus (SLE) is an important human disease which is transmitted by mosquitoes. The virus periodically infects large numbers of humans and the factors responsible for these epidemics are poorly under- stood. Domestic chicken flocks at field sites throughout Florida serve as an excellent model system for measuring SLE transmission in nature. Data from sentinel flocks indicate that SLE transmission during the autumn months is synchronized by heavy rains (greater than two inches) following droughts of two to three weeks. With this information it is possible to track late summer and autumn meteorological patterns and to predict where and when SLE transmission will occur in sentinel chickens. Our next challenge is to accurately forecast SLE transmission to humans. Florida Medical Entomology Laboratory, Vero Beach J. F. Day, Assistant Professor, Project Leader Exotic Mosquitoes in Florida. In 1986 the so-called Asian tiger mosquito, Aedes albopictus, was discovered for the first time in Florida at a tire dump in Duval county. This mosquito has spread rapidly in north Florida where it is now known to occur in 30 counties. However, elsewhere in the state, there have been relatively few reports of A. albopictus infestations. The form of A. albopictus that has invaded North America in recent years came from the temperate zone, most likely from Japan. Yet, recent studies have shown that some Florida populations of A. albopictus are becoming more adapted to conditions at lower latitudes, thus enhancing the potential for this mosquito to spread to the rest of Florida and possibly into the Caribbean region where it could be a major vector of certain human pathogens. Prior to the introduction of A. albopictus, Aedes aegypti was generally the most common Aedes found in artificial containers throughout Florida. Now, in certain areas, A. albopictus is by far the dominant species in these aquatic habitats. Immature A. albopictus may be common in artificial and natural containers, whereas immature A. aegypti are seldom found in natural containers, such as, treeholes and leaf axils. The females of both species blood feed primarily during the daytime, and since they have rather limited flight ranges, biting activity is most pro- nounced near larval habitats. Efforts to control container- inhabiting Aedes with insecticides have provided only short-term relief from these pestiferous mosquitoes. On the other hand, the implementation of improved methods for the storage, disposal and/or recycling of used tires and other types of artificial containers should lead to more effective mosquito abatement. Florida Medical Entomology Laboratory, Vero Beach G. F. O'Meara, Professor, Project Leader The Use of Beauveria bassiana for Suppression of Red Imported Fire Ant. Fire ant, a native of South America, inflicts a painful sting to both humans and livestock. It has become a serious pest throughout the southeastern United States. Beauveria bassiana was isolated from fire ants in Brazil, and shows high levels of pathogenicity to fire ant, but not higher animals or plants. It is the first biological control agent which shows potential commercial utilization. Department of Entomology and Nematology J. L. Stimac, Professor, Project Leader Cyromazine Resistance in Liriomyza trifolii (Burgess) (Diptera: Agromyzidae). Cyromazine, an insect growth regulator formulated as Trigard 75WP (Ciba- Geigy) for the control of Liriomyza spp. leafminers in celery and head lettuce, is the only registered insecticide that can effectively control leafminers in celery and head lettuce in Florida. Lack of complete leafminer control in celery was experienced late in 1989 during the use of cyromazine and could be attrib- uted to insecticide resistance. Bioassays were conducted on a population of leafminers originating from a problem celery field in the Belle Glade, Florida area and compared to a susceptible colony. Bioassays were conducted on the same colonies to determine the possible presence of cross- resistance to abamectin, a potential alternative for the control leafminer. Results indicated a level of resistance high enough to cause loss of efficacy with cyromazine. Results also indicated no cross resistance to abamectin. Therefore, abamectin was expected to be an effective alternative in the control of cyromazine- resistance L. trifolii. The results of this study were instrumental in the granting of an emergency registration for use of abamectin for the control of leafminer in celery in Florida 10 1990 Selected Research Accomplishments in 1990 which resulted in the prevention of considerable economic loss to the celery industry. Central Florida Research and Education Center, Sanford G. L. Leibee, Associate Professor, Project Leader Floating Row Covers Used for Insect Control. During the fall of 1989, a lightweight floating row cover material was tested as a method of excluding insects, both virus vectors, such as aphids, and direct pests such as pickleworm, melonworm, and sweetpotato whitefly, from zucchini squash. Plants that were not covered were infected with mosaic viruses very early, produced little or no fruit and suffered severe pickleworm damage. No insects or symptoms of virus were found on squash when first uncovered, but once covers were removed for pollina- tion, plants became infected with mosaic viruses within three weeks. Even when covers tore, however, few insects attacked the plants, although bees were able to enter and pollinate. Yields were highest in rows that were uncovered a week or more after the beginning of flowering (up to 14 times greater than those grown without covers). In addition to reducing losses to mosaic viruses and caterpil- lars, the use of floating row covers also prevented leaf silvering induced by sweetpotato whitefly. Although covers may be too expensive to use commercially on summer squash, their use may provide benefits when used to protect more valuable cucurbit crops and to protect cucurbits in the home gardens. Central Florida Research and Education Center, Leesburg S. E. Webb, Assistant Professor, Project Leader MICROBIAL SCIENCES Avirulence Genes Specify Hosts of Xanthomonas campestris pv. vesicatoria. Three groups of strains were distinguished by reactions on tomato and pepper. One group is pathogenic on tomato only, another group is pathogenic on pepper only and the third group is pathogenic on both tomato and pepper. To test whether avirulence genes played a role in these responses, genomic DNA libraries were constructed from two strains of X.c. pv. vesicatoria. Two avirulence genes were identified that converted normally virulent strains to avirulence. The avirulence gene avrBsT controlled the ability of the group pathogenic on tomato to cause hyper- sensitivity on pepper. The avirulence gene avrBsP controlled the ability of the group pathogenic on pepper to cause hypersensitivity on tomato. The two avirulence genes were characterized by restriction enzyme analysis, Southern blot analysis, and analysis of the phenotype by electrolyte leakage from infected tissues. Both genes were located on plasmids in the bacterium. Department of Plant Pathology R. E. Stall, Professor Citrus Tristeza Virus (CTV) is Economically the Most Important Citrus Virus Worldwide. CTV is a large, rod shaped virus that is confined to the phloem tissue of citrus plants. CTV is responsible for 2 major types of disease; stem pitting, which affects grape- fruit and sweet orange; and quick decline, which causes a rapid death on trees that have been grafted to sour orange rootstock. Quick decline is presently the most devastating CTV disease in Florida. However, most experts agree that in the future stem pitting will be the major problem. Our group has been involved in research on CTV from a molecular biological standpoint with two major objectives: to identify the genetic functions of CTV in order to better understand its biology; and to devise methods for protect- ing citrus trees from CTV disease. With regards to the latter, our approach is to explore coat protein-mediated protection, or genetically engineered protection, as a control strategy. Previous work, primarily by Roger Beachy's group in St. Louis, has shown that plants that produce coat protein become resistant to attack by the virus. In order to obtain plants that make the viral coat protein, it is necessary to genetically transform the plant with the viral gene. We have been working on the two major aspects of this project; isolation and characterization of the CTV coat protein gene; and, in collaboration with Gloria Moore, genetic transformation of citrus plants. We have now cloned and sequenced the coat protein gene from the severe T36 isolate of CTV. Mary Sekiya, a former MS student, prepared an expression of cDNA library from the viral RNA and screened this library with antibodies to the coat protein. Fifteen positive clones were obtained; 5 were extensively studied. All of these clones produced coat protein in E. coli, the cloning host. Mike McCaffry and Sue Lawrence obtained nucleotide sequence of a region common to all clones and identified a gene (open reading frame) 669 bases long that codes for a protein approximately the same size as coat protein isolated from virus. Identification of this gene as the coat protein gene was accomplished by comparison of amino acid composition, by a perfect match with a peptide sequence obtained from amino-terminal sequencing of the authentic coat protein, and by reaction of the proteins produced in E. coli with a monoclonal antibody against the coat protein. The cloning and sequencing has revealed notable aspects of CTV/citrus biology. However, our more immediate goal is to transform citrus plants with the coat protein gene and then test for resistance of those plants to the virus. Primarily due to Dr. Moore's efforts, we now have a workable method for introducing genes into citrus. Department of Fruit Crops K. C. Cline, Associate Professor, Project Leader Ratoon Stunting Disease of Sugarcane. Ratoon stunting disease of sugarcane is caused by the xylem-inhabiting, coryneform bacterium, Clavibacter xyli subsp. xyli Davis et al. 1984. Annual yield loss in raw 1990 Selected Research Accomplishments 11 sugar value due to the disease was estimated to be $36.8 million in Florida. This estimate was based on the results of incidence surveys, yield-loss trials, 1988-89 production statistics, and 1987-88 sugar prices. Although genetic resistance to the disease exists, it has not been utilized effectively for control, because a practical means to select for resistant cultivars has not been available. To over- come this obstacle, a procedure to screen sugarcane breeding lines for resistance to the disease is being developed. The procedure is based on measuring the extent of colonization of sugarcane stalks by the pathogen, because this parameter was found to be inversely correlated to the degree of resistance exhibited by different cultivars. A serological technique was developed to measure colonization and adapted for testing large numbers of stalks. When the procedure was used to screen the progeny of a number of crosses between parents differing in resistance to the disease, the degree of resistance ranged widely among progeny of individual crosses regardless of the susceptibility or resistance of parents. This indicates that substantial resistance already exists within present breeding lines which can be used for disease control. Tropical Research and Education Center, Homestead M. J. Davis, Professor, Project Leader Biocontrol of Algal Blooms with Viruses. Current methods for controlling algae are primarily limited to the use of herbicides. For example, copper sulfate remains one of the main treatments for outbreaks of blue-green algae in many parts of the world. Unfortu- nately the use of this and other chemical agents are often of limited effectiveness and are accompanied by undesir- able side effects. There is a serious need for more effective and safe agents to control blue-green algae. Ideally it would be desirable to have agents which are highly specific in their effect, to minimize undesirable side effects. In accordance with this goal we are currently involved in a USDA funded project to evaluate the potential of using viruses, specific to blue-green algae, to control algal blooms which plague lakes and ponds in Florida. To date four viruses have been found in this survey. One of these is effective against Lyngbya. The other three viruses are lethal to three major pelagic bloom-forming cyanobacteria Anabaenaflos-aquae, Microcystis aeruginosa, and Anabaena circinalis. Department of Fisheries and Aquaculture E. J. Phlips, Assistant Professor, Project Leader NATURAL RESOURCES Citrus Irrigation with Reclaimed Municipal Wastewater (Conserv II). More than 7000 acres of citrus in Orange and Lake Counties, Florida have been irrigated with treated reclaimed municipal wastewater from Orlando since 1987. Observation and sampling sites were established for soil water monitoring, tree response, and leaf, fruit and soil analyses. Sites irrigated with well water were used as controls. Groves irrigated with reclaimed wastewater had higher soil water contents than control groves (3.88 acre inches vs. 3.56 acre inches in 1989). The higher soil water content adversely influenced juice quality by reducing both the soluble solids and acid. Controls had an average of 5.86 pound of solids per box of fruit while Conserv II averaged 5.68 pounds of solids. Trees irrigated with reclaimed wastewater had a better appearance than trees irrigated with well water. Higher leaf and soil nitrogen, phosphorus and sodium levels were found in groves irrigated with reclaimed wastewater. The quality of the Conserv II water is very good and heavy metal concentrations were low. The benefits of the use of wastewater for irrigation are; 1) a long-term source of safe water for citrus growers that will increase with urban growth, 2) water is currently provided free at pressures adequate for operation of under-tree irrigation (40 lb. per square inch minimum), 3) construction and energy costs of deep wells are eliminated and 4) phosphorous can be omitted from the fertilizer program because of increase soil and leaf phosphorous contents. Liming can also be reduced because Converv II water is more efficient in raising the subsoil pH than conventional liming pro- grams. It was concluded that the use of reclaimed water for citrus irrigation is a horticulturally sound practice. Citrus Research and Education Center, Lake Alfred R. C. J. Koo, Professor, Project Leader An Evaluation of Micro-Irrigation on Sugarcane. A study was conducted for three seasons to evaluate the practical and economic feasibility of using micro-irrigation as an alternative to seepage irrigation for sugarcane. A comparison of the two irrigation methods for sugarcane was performed on a sandy soil. Water-table levels, soil-water status, sugarcane yield, percent sugar, and water use were measured. Results of the study indicated comparable yields from the two irrigation methods, but there was a significant reduction in water use (ratio 6:1) by the micro- irrigation system. However, there are many practical problems associated with the adoption of micro-irrigation for use with sugarcane on sandy soils. Approximately 60% of the water use by seepage irrigation can be attributed to downward percolation and therefore was returned to ground-water reserves. Southwest Florida Research and Education Center D. J. Pitts, Assistant Professor, Project Leader 12 1990 Selected Research Accomplishments Influence of Phosphorus Fertilization on Water Quality and Bahiagrass. It has been speculated that increased phosphorus in Lake Okeechobee waters results in major algal blooms which reduces oxygen and causes major fish kills. Evidence suggests that phosphorus is the primary factor controlling eutrophication of many surface waters. Leaching and runoff of soluble phosphorus fertilizers applied to beef cattle pastures are believed to be a source of the phospho- rus entering the water. Evidence suggests that phosphorus fertilization rates currently recommended can be reduced without forage or cattle production losses. A three year study was conducted to determine the optimum phospho- rus fertilization rate for bahiagrass and to evaluate the influence of phosphorus fertilization rates on surface and ground water quality. Results show that phosphorus fertilization can be reduced from 100 to 50 pounds of phosphate per acre without reducing yields or quality of bahiagrass. In addition, a beneficial effect on water quality (50 percent reduction) was observed. As a result of this and other studies, IFAS has revised fertilizer recommenda- tions for pasture forages. These reductions should result in substantial cost savings to ranchers and reduce the phosphorus levels in surface waters. Agricultural Research and Education Center, Ona J. E. Rechcigl and P. S. Porter, Assistant Professors, and A. B. Bottcher, Professor, Project Leaders BMP Research in the Okeechobee Basin. The Agricultural Engineering Department has three current research projects ($3.3 million) addressing the problem of nutrient rich agricultural runoff entering Lake Okeechobee. The projects are specifically addressing dairy pasture runoff, beef pasture runoff, and drainage from the Everglades Agricultural Area (EAA, sugar cane and vegetables). These projects are evaluating best manage- ment practices (BMPs) for reducing the phosphorus and nitrogen loadings from the respective operations. The projects are also studying fundamental transport processes in order to extend (through computer models) the results beyond the study areas. The work has already shown that phosphorus fertilizer rates can be cut in half on flatwood pastures and improved drainage management in muck soils can significantly improve water quality. Final conclusions will not be available until 1991. Department of Agricultural Engineering A. B. Bottcher and K. L. Campbell, Professors, and F. T. Izuno, Associate Professor, Project Leaders Distribution and Status of Red-cockaded Woodpecker Colonies at Eglin Air Force Base, Florida. The endangered red-cockaded woodpecker (Picoides borealis) inhabits some of the last remaining mature pine stands in the southeastern United States. Eglin Air Force Base in the Florida panhandle encompasses 250,000- 300,000 acres of potential suitable habitat for these birds, but little detailed information is available on the specific locations and activity status of colonies of these birds on the property. The primary objectives of this study are to survey the pine forests for the presence of red-cockaded woodpecker (RCW) colonies, describe the colony site, mark the RCW cavity trees and plot them on appropriate maps, and assess the status of each colony. The survey is being conducted using two field crews walking parallel transects through suitable habitat; a priority system has been developed so that areas with the highest priorities will be sampled first. Field research began in May 1990 and is expected to conclude in September 1992. Several thousand acres have been surveyed; these initial surveys have revealed substantially more RCW colonies than were previously known for the area. Data obtained from this study will be summarized and used in planning the future protection strategies for this endangered species and possible options for the future use of these military lands. Department of Wildlife and Range Sciences W. R. Marion, Associate Professor, Project Leader Effects of Urbanization on Avian Communities Associated with Riparian Habitats in Gainesville, Florida. Breeding and wintering avian communities were studied in both urban and undeveloped riparian forests in 1989 and 1990. Two treatments in the urban areas consisted of narrow, 20-60m, and wide, 70-150m, naturally wooded riparian strips. These strips were bordered by single-family residential homes. The undeveloped area is a state park and served as the control. All sites consisted of mesic hardwood hammock vegetation and vegetation sampling was completed in 1989. Preliminary analysis indicates that all sites were similar in terms of species composition and density of trees. The shrub component was similar in species composition, but not density. Urban sites con- tained a higher density of birds in both breeding and wintering seasons than the state park. Breeding season diversity was higher in the undeveloped forest than in the urban areas but no difference was detected during the winter. Northern Cardinals, Carolina Wrens, and North- ern Parula Warblers were the most abundant birds in both urban treatments. Hooded Warblers were the most abundant in the undisturbed forest and did not occur in urban areas. The proportion of individuals making up each species was less evenly distributed in the urban areas. 1990 Selected Research Accomplishments 13 Approximately 50% of the urban community consisted of three species while five species made up the same propor- tion of the population in the undeveloped area during the breeding season. The results of this study may be used to justify growth management standards that will minimize ecological impacts of urbanization in riparian areas. Department of Wildlife and Range Sciences J. M. Schaefer, Assistant Professor, Project Leader Population Genetics of Atlantic Sturgeon (Acipenser oxyrhynchus). This study was initiated during FY 1990 and is being conducted with the cooperation of the U.S. Fish and Wildlife Service. The goal of this study is to determine levels of genetic variation within and among remnant populations of this threatened species. Blood samples are being collected by personnel of the U.S. Fish and Wildlife Service as part of a tagging and life history study of Atlantic sturgeon in the Gulf of Mexico. To date, we have collected blood from over 300 fish. Allozymes detected electrophoretically are being used to determine overall levels of genetic variation. In addition, we are suing DNA "fingerprinting" methodologies to determine possible levels of inbreeding and within-population genetic variation. Sturgeon populations in the Gulf of Mexico have gone through a major population decline as a result of overfishing and habitat degradation. In addition, the species has a relatively long generation time (10-20 years). As a result, wild-caught individuals from the same localities may be closely related sibss, cousins, etc.), and we are using DNA fingerprinting to assess this level of relatedness. The study is in progress, and preliminary results are not yet available. Department of Fisheries and Aquaculture. D. E. Campton, Assistant Professor, Project Leader. Fundamental Design Parameters for Artificial Reefs. Over $13 million will be spent by Florida on fishing reef construction in FY 90-91, yet no design criteria exist for these structures, assumed by the public to enhance fishery stocks. This study manipulated interpatch distance within replicate experimental reef plots. Commercially harvestable stone crabs had greatest occupancy rates, greatest average, size, and most mating activity on widely spaced patch reefs compared to more aggregated reef patterns. The treatment effect was consistent for abun- dance of other common reef refusing, off-reef foraging species (i.e., octopus, black sea and gray triggerfish). Benthic prey densities increased with distance from reef materials and was affected by interpatch distance within the experimental reef system. Results, thus far, confirm the general resource mosaic model of reef ecological function. A multivariate experiment, with full-sized reefs and more complex fishery assemblages, is now in its first year of construction. Five years of study are approved to more conclusively test this model and to develop objective reef design criteria to achieve defined management objectives. Department of Fisheries and Aquaculture. W. J. Lindberg, Assistant Professor, Project Leader. PLANT SCIENCES Citrus Blight Detection. Citrus blight is a disease of unknown cause that is respon- sible for more than $60 million in losses annually to Florida citrus growers. CREC scientists are attempting to detect a pathogen or pathogen related proteins or nucleic acids in blighted trees. Seven unique proteins that serve as biochemical markers for citrus blight have been identified. The proteins were found in vacuum extracts of root and stem pieces of diseased trees. These proteins are absent in similar preparations from healthy trees. The proteins are referred to as blight proteins and can be used to diagnose blight in young citrus trees. Young, healthy appearing trees that have been graft-inoculated with roots from blighted trees were found to contain the same proteins found in mature trees with blight. Scientists now have an excellent tool in the early diagnosis of citrus blight and a key to determining its cause. Evidence that the proteins are indeed related to citrus blight include: 1) They have been found in all trees assayed that have symptoms of blight and high zinc levels and low water uptake. 2) They have never been seen in assays of healthy trees or trees declining with CTV, root rot, or water stress. 3) They have been detected in young (presymptomatic trees) trees that had been graft inoculated with blighted roots. 4) They have been detected in extracts of blighted trees from Brazil. Citrus Research and Education Center,Lake Alfred K.S. Derrick, Professor, Project Leader Early Blight of Potatoes. Early blight is a disease which attacks potato foliage after blossoming. For many years the disease was believed unimportant in northeastern Florida. Recent data has documented losses as high as 42% associated with the disease in unsprayed potatoes. In addition, based on rapid defoliation and other factors, it is believed that an unusu- ally aggressive strain of the pathogen exists in Florida which may account for the large losses in yield during some years. This disease is effectively controlled with properly applied fungicides including Chlorothalonil and iprodione. Agricultural Research and Education Center, Hastings D. P. Weingartner, Associate Professor, Project Leader 14 1990 Selected Research Accomplishments Corky Ringspot Disease. Potato corky ringspot disease is important in northeastern Florida potato production. This disease is caused by a virus which is transmitted to potato tubers by stubby root nematodes. Nematodes are microscopic roundworms which inhabit the soil and parasitize the roots of plants. Resistance to corky ringspot in several varieties of potato was reaffirmed in 1990. Varieties Superior, Late Superior, Oceania, and Hudson showed outstanding resistance under intense disease pressure. Temik, which is the most effective chemical control for corky ringspot, will be unavailable to growers during 1991 so resistant cultivars will play a more important role in managing the disease. These cultivars will offer growers an alternative to Temik. Agricultural Research and Education Center, Hastings D. P. Weingartner, and J. R. Shumaker, Associate Profes- sor, Project Leaders Unique Chromosome Makeup for Florida Strains of the Citrus Post Bloom Fruit Drop Pathogen. The fungus Colletotrichum gloeosporioides causes the disease post bloom fruit drop in citrus. To test for genetic varia- tion in the pathogen, the chromosome banding patterns of several strains of the fungus were examined using a new technique called pulsed field electrophoresis. Type cultures of the fungus were examined as well as strains isolated from both lime and sweet orange from various parts of Florida, Belize and Mexico. All strains from Florida contained chromosomes that were 3 million base pairs (3.0 Mb) in size and most also contained chromo- somes between 0.64 and 1.6 Mb. Type cultures and strains from Mexico and Belize lacked chromosomes between the sizes of 0.6 and 3.0 Mb. Strains were also examined for the presence of the gene for an enzyme called cutinase. The gene for cutinase was previously cloned from a strain of C. gloeosporioides that infects papaya and the enzyme was shown to enable the pathogen to penetrate the plant skin or cuticle. However, DNA sequences similar to the cultinase gene are found in only one of the Florida strains of the citrus pathogen whereas all other strains of the citrus pathogen contain sequences similar to the cutinase gene. Presumably most Florida citrus pathogens do not require cutinase in order to cause disease, perhaps due to the limited cuticle barrier present in the flower. These preliminary results suggest that Florida strains of the post bloom fruit drop pathogen are likely to be quite different genetically from type cultures and similar pathogens found in other parts of the world. Control measures must be fashioned to take into account this genetic variability and the unique properties that might be expected of the Florida strains. Department of Plant Pathology H.C. Kistler, Assistant Professor, Project Leader Culture of Vallisneria Aquarium Plants. Several species of the Vallisneria genus are cultured by aquarium growers in Florida. These Vallisneria plants constitute a large portion of the aquatic plants produced by the growers. Competition from foreign growers during the past few years has severely reduced profit potential for the Florida aquarium plant growers. Foreign growers because of their inexpensive labor, and in some cases, favorable climates which help reduce expenses related to production of cold sensitive plants can undercut the growers in Florida. Plant culture techniques and methods are needed to help Florida growers remain competitive with foreign growers. An evaluation of a culture method that involved placing various fertilizers as a layer under sand resulted in production of two to three times the number of Vallisneria plants compared to the aquarium grower's standard culture practice of covering a layer of cow manure with sand. Use of the fertilizer culture method by the Florida aquarium growers may enable them to increase their production of Vallisneria plants and help them remain competitive with foreign growers. Fort Lauderdale Research and Education Center D. L. Sutton, Professor, Project Leader Breeding Carrots for Sweetness. In recent years a large number of new Fl hybrid carrot varieties have been released, but most of them are superior in yield and appearance rather than eating quality. We have initiated a carrot breeding program that has as its top priority the development of a carrot hybrid with sweet flavor superior to all others. The material chosen for parents included the open-pollinated variety 'Early Scarlet Nantes' and a high soluble solids (high sugars) inbred carrot line, 4367M, which has poor flavor in spite of the high sugar content. 'Early Scarlet Nantes' is famous for its eating quality: sweet taste (in spite of only 6-7% soluble solids), tender texture, and good flavor. The cross 'Early Scarlet Nantes' x 4367M was made and selection was made for Fl roots with high soluble solids. The F2 population from this cross was selected for root appearance, high soluble solids, tender texture, and good flavor. We were very surprised to obtain root selections with soluble solids in the range of 10-11% and excellent flavor and texture. These roots are being cross pollinated in a screen cage in Washington state this summer. The prospects for realizing our goals for this program are excellent. There are two main obstacles yet to overcome. High sugar is correlated with a tendency toward bitter or otherwise unpleasant flavors and late flower development. We will select strongly against both of these characteristics. Vegetable Crops Department and Central Florida Research and Education Center, Sanford M. J. Bassett, J. O. Strandberg, Professors and J. M. White, Associate Professor, Project Leaders 1990 Selected Research Accomplishments 15 Development of New Sugarcane Cultivars. Four new sugarcane cultivars were released following their development through the Florida sugarcane breeding program at Canal Point. Cultivars 'CP 82-1172', 'CP 80- 1743, 'CP 78-1628', and 'CP 81-1302' all have shown yield potential equal to or greater than the most widely grown cultivars. These new clones should help provide increased genetic diversity needed to address greater disease pressure, particularly from sugarcane rust. They all show adequate resistance to smut, eye-spot, sugarcane mosiac virus, and leafscald. These new clones also provide additional choices for cultivation in more diverse environments, although CP 82-1172 may not produce well on sandy soils. Everglades Research and Education Center C. W. Deren, Assistant Professor, J. D. Miller, and P. Y. P. Tai, Adjunct Associate Professors, Project Leaders Three New Butterhead Lettuce Cultivars for Florida. The lettuce breeding program at the University of Florida began in the mid- 1970's to develop environmentally adapted lettuce cultivars with multiple disease resistance for production in Florida. Three butterhead lettuce cultivars; 'Everglades', 'Florida Buttercrisp', and 'Florida 202' are in the final stages of release. All three cultivars produce high quality heads, which are free from internal defects such as tipbum, cracked ribs, poor color and bitterness. The head size on all three cultivars are consid- ered large, ranging between 13 and 16 oz. 'Florida Buttercrisp' and 'Florida 202' are resistant and 'Everglades' is tolerant to corky root, a bacterial root disease caused by Rhizomonas suberifaciens. This is the most serious disease of lettuce in Florida. All three are either resistant or tolerant to lettuce mosaic virus, which is transmitted through the seed. 'Everglades' is also resistant to downy mildew and spring yellows virus. With the addition of these three new cultivars to the two standard cultivars presently used, a multiple cultivar use plan is being developed. The development of this plan will help to insure a high quality product by selecting the best adapted cultivar for planting based on environmental and disease conditions expected during the two month growing period. Increased yields can also be expected over the six month harvest period in Florida due to larger heads and increase in the percentage of heads harvested. This could lead to an expansion of the market share controlled by Florida, presently at 3-4 million dollars annually. Everglades Research and Education Center R. T. Nagata, Assistant Professor, Project Leader Fertigation of Young Citrus Trees. Over 126,000 acres of young citrus trees were planted last year, many of which are fertigated (application of soluble fertilizer through irrigation lines). However, no recom- mendations exist as to optimum rates and application frequencies in Florida. Moreover, no information concern- ing fertigation and nutrient leaching in Florida's sandy soils is currently available. Our results suggest that newly set trees may be fertigated weekly, triweekly or every six weeks without affecting tree growth provided that soil moisture is maintained at optimum levels. Leaching of nitrate, however, is most pronounced when infrequent, high rates of fertilizer are applied. Growth of newly set trees is similar whether granular or liquid fertilizer is applied and tree response to varying fertilizer rates is also similar to that for granular materials provided that soil moisture is maintained at optimum levels. Application of liquid fertilizers on a weekly or biweekly basis appears to reduce nutrient leaching without compromising growth of young citrus trees. Department of Fruit Crops F. S. Davies, Professor, Project Leader Wild, Nut-Producing, Forage Peanuts. Two wild peanuts recently have been released by IFAS. Major drawbacks are having to establish them vegetatively by rhizomes and the year or so required for establishment. Experiments have been done with nut-producing types. One, very heavy seed-producing type, has been grown at the AREC for more than 10 years. Last year a new effort was begun to evaluate 11 nut-producing types. Included is a recent Australian release that does not nodulate well and appears very light green in color. Initial years results were encouraging, and nuts produced were used for this years test which includes agronomic field evaluation of single plant plots with emphasis on quantity of seeds produced. Also there are three field tests established in permanent grass pastures to evaluate survival under grazing. Most of the entries survived a low of 22 F in December, 1989, and many had a plant diameter of more than six feet by July 1990. All germinate fast, grow rapidly, and nuts from last season volunteered readily. Additional seeds will be collected this year for further field testing. Commercial harvesting and cleaning of nuts has been a constraint until a mechanical method was developed that has been used successfully in Australia. Agricultural Research and Education Center, Ft. Pierce. A. E. Kretschmer, Professor, Project Leader. Rhizosphere pH Influences Early Root Development of Bell Peppers. Bell peppers (Capsicum annuum L. 'Early California Wonder') were seeded in glass tubes with agar adjusted to pH 4.1, 5.9, or 7.3 under controlled light and temperature conditions. Germination, emergence, shoot weight, and root morphological characteristics were evaluated 16 days after seeding. Taproot lengths were measured every 24 hr 16 1990 Selected Research Accomplishments from 1 to 10 days following radicle protrusion. Days from seeding to germination radiclee protrusion) were only one half day different among pH media treatments. Seeds in a pH 5.9 medium emerged (fully expanded cotyledons) 1 day earlier than seeds placed in pH 4.1 or 7.3 media. Shoot: root ratios were not different among pH media treatments. However, taproot growth rate from 1 to 10 days after radicle protrusion was faster for plants grown in a pH 5.9 medium as compared with pH 4.1 or 7.3 media. Basal and lateral root numbers averaged 1 per plant and were minimally influenced by pH. The data suggests that acidic or alkaline media adversely affect early shoot and taproot development with minimal influence on days to germina- tion or emergence, and subsequent lateral and basal root initiation. Agricultural Research and Education Center, Ft. Pierce. P. J. Stoffella, Professor, Project Leader. Stylosanthes Pasture Improvement. Stylosanthes, a tropical legume, is widely used in the tropics for pasture improvement. In Florida selections have been developed which can be grown on ranches in the southern part of the State. Two genotypes of Stylosanthes guianensis have survived freezing temperatures during the cold snap of December 1989. These cold-hardy types probably could be grown further north in Florida than most other Stylosanthes. They are early flowering (September) and produce seed prior to the winter season in Florida. These genotypes also have shown resistance to anthracnose caused by Colletotrichum gloeosporioides, a fungal disease which very severely reduces the yield of Stylosanthes particular in the tropics. Stylosanthes is rich in protein (20%) and is very digestible (70% in vitro digestibility). Agricultural Research and Education Center, Ft. Pierce J. B. Brolmann, Associate Professor, Project Leader Improved Success in Establishing the Legume, Aeschynomene. Aeschynomene is the major summer legume used by ranchers in south-central Florida. It is an annual, and once initially seeded, it will usually regenerate from seed in subsequent years. Ranchers can assist in this re-establish- ment process by grazing sod close (2 to 3") in the spring, followed by light disking. Limited rain is the major reason for legume failure. It costs about $88/A to initially seed and grow the crop and about $58/A to disk (regenerate) and grow it in subsequent years. We looked at ways to improve the chance of success so that we could make the investment less of a gamble. Over a 5 yr period at the Ona AREC, we studied 17 seedings of aeschynomene and believe we can obtain 80% success if the following conditions are met: 1) have at least 0.9" rain in the 8-d period before seeding, and 2) soil water potential (at 3" depth) on the day of seeding less than 150 bars tension (-15 kPa). Soil water potential is a measure of just how tightly the soil holds the water, and is easily measured with an instrument called a tensiometer. Agricultural Research and Education Center, Ona R. S. Kalmbacher and L. C. Hammond, Professors, Project Leaders Legume Contributions to Bahiagrass Pastures. Potential benefits of legumes in grass pastures include improvements in performance of grazing livestock, due to superior forage quality of pasture legumes, and addition of nitrogen through biological nitrogen fixation. Even the most persistent legumes often comprise only small propor- tions of the forage available in bahiagrass pasture. It has been more difficult to determine whether benefits were obtained from only small proportions of legumes in pastures (as is often the case a year or two after planting many legumes). Management decisions such as when to graze, how heavy to graze, and when and how much nitrogen fertilizer to apply could be altered to optimize benefits of sparse legume stands, if they are of benefit. Recent research has shown growth responses by yearling cattle when aeschynomene and phasey bean comprised as little as 3.5% of the available forage. Cattle selectively grazed these legumes, with diets containing much higher proportions of legume than found in the pasture. Carpon desmodium contributed to animal performance when approximately 8% of the pasture forage consisted of the legume. However, carpon desmodium was consumed in similar proportions to those found in the pasture. Manage- ment of legumes, comprising only small proportions of the forage in pastures could return substantial benefits. Management costs are not necessarily high when fencing exists to allow controlled grazing, and may even include the decision not to apply nitrogen fertilizer in some situations. Agricultural Research and Education Center, Ona W. D. Pitman, Associate Professor, Project Leader Seed Priming Improves Germination and Growth of Annuals. Recommendations have been developed for the successful priming of salvia, dusty miller and pansy seeds. Seed priming consists of imbibing seeds in an osmotic solution at a concentration that allows seeds to imbibe limited quantities of water and go through the first steps of germination, but does not permit radicle protrusion through the seed coat. To successfully prime seed, the correct priming osmoticum, amount of available water, duration of treatment, temperature, aeration, and seed drying and storage procedures must be determined. Priming seeds in aerated polyethylene glycol (PEG 8000) solutions at -0.8 to -1.0 MPa concentrations at 15 degrees 1990 Selected Research Accomplishments 17 C temperature for 7 to 10 days was found best for the bedding plants on trial. Specific PEG 8000 concentrations and priming durations were required for each species. Primed seed had increased total germination, more uniform germination, and seedlings of more uniform size. Many bedding plant species require germination temperatures that can not be maintained consistently in commercial greenhouses, and frequently the species optimum tempera- ture range is very limited. Since priming permits seed germination above the normal temperature range for the species, it eliminates a major problem for Florida's producers. Department of Environmental Horticulture W. J. Carpenter, Professor, Project Leader Prostrate Spurge Control with Metsulfuron. Prostrate spurge (Chamaesyce maculata) is one of the most common summer weeds in golf courses due to its prostrate growth habit, hard-to-kill nature with currently available herbicides, and tendency to thrive in nematode infested soil. Control currently involves combination ofphenoxy and benzoic herbicides repeated every 10 to 14 days, often resulting in undesirable bermudagrass damage. Research was performed to investigate turf tolerance and weed control of several recently introduced herbicides. Metsulfuron-methyl, a substituted area, at 0.016, 0.023, and 0.047 Ib ai per acre provide excellent (> 95%) control without any visible damage to the Tifway bermudagrass. Traditional treatment, 2,4-D (1.0 lb ai/A) plus dicamba (0.5 lb ai/A), provided fair (>75%) control while imazaquin (0.38 and 0.5 lb ai/A) provided poor (>40%) control and also resulted in discolored turf. Metsulfuron shows promise of excellent spurge control at ultra-low rates without serious discoloration to bermudagrass. Department of Environmental Horticulture L. B. McCarty, Assistant Professor, Project Leader Effective Growth Regulators on Cycads. After many years of experimentation branching of cycads was enhanced, thus forcing the plants to produce numerous lateral shoots making their vegetative propagation possible and permitting nurseries to grow rather than illegally collect these ancient plants from their natural habitats, as is currently the case. The results of this research are both of commercial and conservation value. All cycads, including the Florida Coontie (Zamia floridana) are endangered and under international protection. They are, however, much in demand by collectors and the landscape industry. Seeds of most species are not available and their germination is often difficult. Moreover, despite repeated attempts by several laboratories, their tissue culture is as yet not feasible. Department of Environmental Horticulture B. Dehgan, Professor, Project Leader Molecular Responses to Drought and Cold Stress. Current work is addressing the adjustment of plant metabolism and changes in freezing tolerance during exposure to low temperature. One of the proteins (CAP79) synthesized at an elevated rate at 5-C with respect to synthesis at 25~C in spinach leaf tissue has been experimentally identified as a member of 70 kDa heat shock gene family. This assignment is based on protein sequence analysis of cyanogen bromide cleavage frag- ments. Further evidence to support the assignment of spinach CAP79 as a member of the HSP70 protein family includes Western blot analysis using polyvalent mouse antiserum produced with partially purified CAP79, and a rat monoclonal (7.10) raised against the Drosophila HSP70. Both the mouse antiserum and the rat monoclonal antibody recognize a 79 kDa protein in nonacclimated and cold acclimated spinach leaf tissue. Partially purified CAP79 from cold acclimated hypocotyl tissue crossreacts with the Drosophila monoclonal and CAP79 antisera on one- and two-dimensional Western blots. In hardy plant species, the other major function of cold acclimation is the induction and maintenance of increased freezing tolerance. To this extent, some of the alterations in gene expression observed during cold acclimation are considered to be decidedly linked to the adjustments related to freezing tolerance mechanisms. We have produced monoclonal antibodies to two other proteins, CAPs 160 and 85. These antibodies have allowed us to further explore the quantitative relationships between cold acclimation, freezing tolerance and the abundance of CAPs 160 and 85. We have measured the response of spinach leaf and other tissues during cold acclimation, deacclimation, and controlled desiccation at warm temperature. These studies have shown that nonacclimated leaf tissue contains each of these proteins, and that they are accumulated in cold acclimated tissue at low temperature. Preliminary experiments with deacclimated tissue show the proteins begin to decline upon return to warm temperature. While synthesis of CAPs 160 and 85 is rapidly curtailed during the early stages of deacclimation, recent Western analyses indicate the proteins do not decline as rapidly as indicated by in vivo labeling. With the monoclonal antibodies, we have also been able to show that CAPs 160 and 85 are actively accumulated in leaf tissue during desiccation. In fact, the accumulation of these two proteins is greater during a 72 hour desiccation treatment than a seven day low tempera- ture exposure. Turnover of drought induced CAP 160 and 85 is much slower than the accumulation, with the turnover of these proteins being at least 96 hours. Most exciting is that these experiments, for the first time, show a direct molecular linkage, at the protein level, of a relation- ship between desiccation, cold acclimation, and freezing tolerance. Our studies of cold stress proteins indicate that we have accidently found proteins that may play an important role in drought tolerance responses of plants. 18 1990 Selected Research Accomplishments If this holds true, then our work may lead to information that is extremely important in reducing crop losses to the two most significant causes of yield reductions, drought and low temperature. Department of Environmental Horticulture C. L. Guy, Associate Professor, Project Leader Dry Matter Production and Perennation of Penisetum sp. in Central Florida. 'Tifleaf II" pearl millet, a high quality, warm-season annual forage, was compared to its perennial relative "Mott" dwarf elephantgrass and an interspecific hybrid of pearl millet and elephantgrass (Tift 23A N14, N23, N74) for seasonal and total forage production, winter survival and forage quality (protein and digestibility) under central Florida conditions. Total forage production of the pearl millet and the hybrid were similar in 1986 (5.5 and 6 T/A, respectively), but the hybrid produced 15% more forage in the late summer and fall than did the pearl millet. The vegetatively planted dwarf elephantgrass only produced 3 T/A in 1986. Both the hybrid and the dwarf elephantgrass survived several light freezes (min. temp. 32 deg F). Forage production of the overwintered hybrid material and elephantgrass were similar in 1987 (6.7 and 8 T/A, respectively), and higher than 1987 planted, seedling hybrid material (4 T/A). The seedling hybrid material produced 25-30% less forage in 1987 than 1986 due to moisture stress. In 1987 the forage quality of the elephantgrass and the seedling hybrid material was superior to that of the overwintered hybrid material. This was thought to be due to higher leaf content of the elephantgrass and seedling hybrid compared to the overwintered hybrid. Subtropical Agricultural Research Station, Brooksville M. J. Williams, USDA, ARS, Adjunct Assistant Professor, Project Leader Young Citrus Tree Fertilizer Response in Southwest Florida. Large areas of former pasture or range land have been converted to citrus groves in southwest Florida. Fertilizer rates used on the young trees have generally been higher than the present guidelines in the literature. This study was undertaken to evaluate current IFAS recommenda- tions under the longer growing period of the region. Standard water-soluble and slow-release mixed fertilizers were applied to newly-planted 'Hamlin'/Carrizo rootstock trees at five rates, with the lowest rate set at zero applied fertilizer and highest at the current guideline rate for the first year of growth. Tree growth at 1 year expressed in terms of canopy cross-sectional area, trunk cross sectional area, and tree height was maximum at 0.24 lbs of nitrogen fertilizer per tree, which is slightly less than the currently- recommended rate. Tree growth and canopy expansion was exceptional for 1-year-old trees. Southwest Florida Research and Education Center, Immokalee T.A. Obreza, Assistant Professor, Project Leader Impact of Forage Cover Crops on Tomato Production. The establishment of forage cover crops prior to planting tomatoes offers many potential agricultural and ecological benefits to the vegetable grower. Potential benefits from using cover crops includes weed control (less herbicide), nitrogen from mulch and roots (less fertilizer), organic matter (OM) to enrich the soil, reduction in nematode and insect populations, and ground cover to reduce wind erosion (soil). Income from the sale of forages as hay or as a seed crop may provide a secondary income to the vegetable grower, or the forage crop could be mob grazed to provide supplemental forage of good quality to livestock. Efforts are in progress to determine the effect of forage cover crops on seepage irrigated tomato production and on emitter spacing on tomatoes grown with drip irrigation. Soil enrichment (OM, nutrient release) from forage grasses and legumes, nematode and insect populations. Southwest Florida Research and Education Center J. J. Mullahey, C. S. Vavrina, D.J. Pitts, Assistant Professors, Project Leaders Meristem Culture, Somatic Embryogenesis, and Regeneration of Plantlets of Ophiopogon japonicus. Meristems of lily turf, 0. japonicus (Liliaceae) were grown on a tissue culture medium without auxins or cytokinins. Plantlets were easily regenerated from low percentages of meristems. A large proportion of meristems developed into plantlets or produced callus and additional plantlets if they were transferred briefly (30 days) to medium containing a 5 uM a-napthalene acetic acid then returned to basal medium. When calli were grown in liquid shake culture without auxins or cytokinins, somatic embryos were produced. Somatic embryos developed into normal plantlets. Plantlets regenerated from somatic embryos were freed of a potyvirus that infects most sources of lily turf. Only 20% of plantlets regenerated from meristems were free of the virus. Virus-free lily turf plants are now available that grow faster and have a better appearance than virus- infected plants. The procedures developed appear applicable to other ornamental plants in the Liliaceae such as Liriope and Lily. Central Florida Research and Education Center, Sanford J. O. Strandberg, Professor, Project Leader. 1990 Selected Research Accomplishments 19 Water Needed for Cold Protection Reduced by Almost 60%. Leatherleaf fern, the most valuable floricultural crop produced in Florida, is easily cold damaged if temperatures fall below freezing. This crop is almost exclusively pro- tected from cold using overhead irrigation. Due to interest in maintaining water availability and quality, research has been conducted to reduce the amount of water necessary to cold protect this crop. Results during a radiation freeze with a low temperature of 23xF showed that by using a combination of shadehouse icing ('igloo effect'), nonporous sidewalls and frost protection sprinklers (approximately 3 rpm) water application rates could be reduced 60% (from the recommended 0.35"/hr rate to 0.14"/hr) without cold damage or loss of frond vase life. During a severe advective freeze (15-20 mph winds with low temperatures of 18xF), mature fronds were not damaged at the reduced water application rates. However, a majority of immature fronds were damaged as is typical under such severe cold even using conventional applica- tion rates. Frond color, vase life and yield were not reduced by any treatment. These results indicate that considerable reductions in water withdrawals for cold protection of leatherleaf fern can be made without sacrific- ing cold protection capabilities or crop yield and quality. Central Florida Research and Education Center, Apopka R. H. Stamps, Associate Professor, Project Leader Potential of Biocides to Control Diseases and Pests of Tomato. Sulfhydrl proteinases have great potential as a biodegrad- able pesticide to control bacterial and fungal diseases of tomato. Laboratory, growth chamber, greenhouse and field experiments have shown that papain and other sulfhydryl proteinases are able to significantly reduce bacterial leaf spot (caused by Xanthomonas campestris pv vesicatoria) in tomato. when compared with copper and mancozeb treatments, there was increased yield in biocide-treated plots. In addition, fungi such as Fusarium and Verticillium are effectively controlled by sulfhydryl proteinases. Studies are currently underway to test the potential of biocides to control nematodes and other insect pests. Tropical Research and Education Center, Homestead K. R. Narayanan, Assistant Professor, Project Leader SOCIAL SCIENCES Milk Production/Consumption. Given that Florida milk production is less than milk consumption on an annual basis, reducing the cost of the additional milk needed is of high priority. Marketing research has determined that the cost of obtaining addi- tional milk supplies for Florida may be reduced by the use of reverse osmosis, a membrane technology that removes water from milk. The concentrated product can then be transported from distant sources and recombined at plants in Florida. A model of U.S. milk markets which incorpo- rates a network flow algorithm to solve for least-cost interregional movements of milk was developed to analyze the reverse osmosis technology. Department of Food and Resource Economics E. M. Babb, Eminent Scholar, Project Leader World Trade in Orange Juice. A mathematical model of the world orange juice market was completed. A stochastic simulation model which encompassed production in Florida and Brazil, with demand represented by the United States, Canada, Western Europe, and Japan was developed. The model was used to analyze the impact of reduced U.S. tariffs for frozen concentrated orange juice, reduced duty by the European Economic Community for imported frozen orange juice concentrate, exchange rates, and other factors dealing with the structure of production in Florida and Brazil. Department of Food and Resource Economics T. H. Spreen, Professor, Project Leader Rural Land Values. The annual Florida Land Value Survey involves the estimation of the value of different types of agricultural and rural land in the various geographic regions of the state. For 1990, the survey revealed the agricultural land values increased 7 to 9 percent in the Northern areas of the state over the past year. In the South, where freeze damage was less than in the Central areas, bearing orange groveland increased over 12 percent and grapefruit groveland about 17 percent. The market for transition land, i.e., land moving into nonagricultural uses, was strong in the Northwest with increases averaging 10 percent but was stable in other areas. Numerous concerns about the potential effects of government regulations on land values were reflected respondents comments. Department of Food and Resource Economics J. E. Reynolds and J. R. Gordon, Professors, Project Leaders Changes in Faculty 21 Deaths We regret to report the death of the following faculty member: Carl A. Anderson, Citrus Research and Education Center. 4/19/90 Retirements William G. Blue, Soil Science. 7/31/89 Victor W. Carlisle, Soil Science. 2/28/90 George J. Edwards, Citrus Research and Education Center. 10/31/89 George J. Fritz, Agronomy. 11/27/89 Frank P. Gardner, Agronomy. 6/29/90 Carroll M. Geraldson, Gulf Coast Research and Educa- tion Center. 6/30/90 Dwain D. Gull, Vegetable Crops. 12/31/89 James A. Himes, Veterinary College Administration. 6/29/90 Robert C. Koo, Citrus Research and Education Center. 1/31/90 William P. Palmore, Physiological Sciences. 7/31/89 Harlan L. Rhoades, Central Florida Research and Education Center, Sanford.2/28/90 James R. Strain, Food and Resource Economics. 6/30/90 Alvin C. Warnick, Animal Science. 1/31/90 Resignations Philip G. Crandall, Citrus Research and Education Center. 8/3/89 Steven C. Denham, Animal Science. 6/30/90 Duane R. Dippon, Forestry. 5/4/90 Arthur Grider, Jr., Food Science and Human Nutrition. 12/29/89 Dewayne L. Ingram, Environmental Horticulture. 6/22/90 James W. Lamkey, Animal Science. 5/31/90 Claude McGowen, Food Science and Human Nutrition. 8/31/89 New Appointments David R. Allred, Assistant Professor, Infectious Diseases. 2/12/90 Richard C. Beeson, Jr., Assistant Professor, Central Florida Research and Education Center. 9/1/89 Frank A. Chapman, Visiting Assistant Professor, Fisheries and Aquaculture. 8/1/89 Richard E. Dierks, Dean and Professor, Veterinary Medicine. 8/1/89 Laura K. Guyer, Assistant Professor, Food Science and Human Nutrition. 3/1/90 Andrew M. Lazur, Assistant Professor, Fisheries and Aquaculture. 4/1/90 Gale F. Lorens, Assistant Professor, Agronomy. 1/2/90 Robert J. McGovern, Assistant Professor, Southwest Florida Research and Center. 4/2/90 Charles D. Morris, Assistant Professor, Florida Medical Entomology Laboratory. 7/7/89 John J. Mullahey, Assistant Professor, Southwest Florida Research and Gregg S. Nuessly, Assistant Professor, Everglades Research and Education Center. 9/1/89 Susan S. Percival, Assistant Professor, Food Science and Human Nutrition. 8/25/89 Stephen M. Roberts, Assistant Professor, Physiological Sciences. 2/16/90 Robert E. Rouse, Associate Professor, Southwest Florida Research and Education Center. 1/5/90 Sven E. Svenson, Assistant Professor, Ft. Lauderdale Research and Education Center. 8/21/89 ( ( Research Administration 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 Affairs & Prof FLORIDA AGRICULTURAL EXPERIMENT STATION Office of the Dean for Research 2 JAMES M. DAVIDSON Dean For Research & Prof & Director 2 EVERETT R. EMINO Asst Dean & Prof & Asst Director 2,3 THOMAS E. FREEMAN Prof & Act Asst Dean 2 JUDY F. KITE Asst to the Dean 2 JOHN T. NEILSON Asst Dean & Prof & Asst Director 2 ANDREW J. OSWALD Assoc in & Manager, Florida Foundation Seed Producers Inc. 2 NEAL P. THOMPSON Assoc Dean & Prof & Assoc Director 2 ALAN J. WILKENING Asst in Data Base Management IFAS SPONSORED PROGRAMS 1,2,3 CAROL A. COOK Asst Dir CENTER FOR COOPERATIVE AGRICULTURAL PROGRAMS-FAMU 1,2 LAWRENCE CARTER Asst Dean & Assoc Prof, 1890 FAMU Programs CENTER FOR AQUATIC PLANT RESEARCH 1,2,3 JOSEPH C. JOYCE Dir & Prof Research Grants: Davidson J M. The Further Development Of Shrunken-1 First Intron. Uf Div Of Sponsored Research. 07/31/89-06/30/90. $26,000 Davidson J M. Support Of Ag Research Of Mutual Interest. US Dept Of Agriculture. 10/01/86- 09/30/91. $749,260 Davidson J M. Program For Implementation Of Research Guidelines & Related Materials For Abrac. U S Dept Of Agriculture. 04/03/89-03/31/90. $42,132 Davidson J M. Various Departments & Centers. Fl Tomato Committee. 11/01/89-10/31/90. $165,000 Davidson J M. Cooperative Support Agreement. U S Dept Of Agriculture. 01/17/90-01/16/91. $4,598 DavidsonJ M. Biomedical Research Support Grant. National Institutes Of Health. 04/01/90-03/31/91. $13,882 Davis D F. CBAG Management Grant For Tropical/ subtropical Agriculture. U S Dept Of Agriculture. 02/01/88-01/31/91. $57,500 Haller W T. Aquatic Plant Management Strategies In Flowing Waters. U S Army. 03/05/90-12/31/90. $91,268 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 McKee V C. Hurricane Disaster Relief Virgin Islands. U S Dept Of Agriculture. 02/27/90-02/28/91. $5,000 Thompson N P. Various Departments & Centers. Fl Foundation Seed Producers. 07/01/89-06/30/90. $25,000 Thompson N P. Research In Support Of Plant Variety Development. Fl Foundation Seed Producers. 03/01/90-06/30/91. $136,355 Thompson N P. New & Improved Varieties Of Crop Seed & Other Plant Materials In Adequate Quantities. Fl Foundation Seed Producers. 07/01/88-06/30/91. $62,834 BIOMASS ENERGY SYSTEMS 2 WAYNE H. SMITH Dir & Prof 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 24 Agricultural and Extension Education COLLEGE OF AGRICULTURE AGRICULTURAL AND EXTENSION EDUCATION 1 LARRY R. ARRINGTON Assoc Prof, Teaching 1 CARL E. BEEMAN Chair and Prof 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 4 Other UF or Cooperating Agency 1 Resident Instruction 2 Research 3 Extension Agricultural Engineering 25 AGRICULTURAL ENGINEERING 1,2 LARRY O. BAGNALL Prof, Agricultural Proc. & Aquatic Weeds 1,2 CARL D. BAIRD Prof, Engery & Agricultural Proc. 2,3 WILLIAM J. BECKER Prof, Safety Specialist 1,2,3 ADELBERT B. BOTTCHER Prof, Water Resources & Non-Point Pollution 1,2,3 RAY A. BUCKLIN Assoc Prof, Farm Structures & Waste Management 1,2 KENNETH L. CAMPBELL Prof, Water Management 1,2 KHE V. CHAU Prof, Energy & Proc. 2 TEN-HONG CHEN Asst Res Sci Bioengineering 2 DAVID P. CHYNOWETH Assoc Prof, Anaerobic Digestion 2,3 GARY A. CLARK Asst Prof, Water Extension Specialist, Bradenton 2,3 RICHARD P. CROMWELL Assoc Prof, Age. Mach. 2 ROBERT B. CURRY Visiting Prof, Crop Growth 1,2,3 JONATHAN F. EARLE Asst Prof, Bioprocess Engineering 1,2 RICHARD C. FLUCK Prof, Energy & Systems, Resource Utilization 4 JEROME J. GAFFNEY Adj Assoc Prof, Citrus & Vegetable Handling 2,3 WENDY D. GRAHAM Asst Prof, Groundwater Hydrologist 4 DANEL G. HAILE Adj Asst Prof, Ins. Cont. 1,2,3 DOROTA Z. HAMAN Assoc Prof, Water Management 1,2 ROY C. HARRELL Assoc Prof, Robotics 4 WILMOT W. IRISH Adj Prof, Agricultural Engineering 1,2,3 GERALD W. ISAACS Chair and Prof 2,3 FORREST T. IZUNO Assoc Prof, Water Manage- ment, Belle Glade 1,2 JAMES W. JONES Prof, Agricultural Engineering, Plant Modeling & Systems Analysis 1,2,3 PIERCE H. JONES Assoc Prof, Environmental 1,2 EDWARD P. LINCOLN Assoc Prof, Algae Production 1,2 WAYNE MISHOE Prof, Crop Modeling Instrumention Systems 1,2,3 ROGER A. NORDSTEDT Assoc Prof, Waste Management 1,2 ALLEN R. OVERMAN Prof, Water Management & Pollution Control 1,2 ROBERT M. PEART Grad Res Prof, Systems Analysis 4 DONALD R. PRICE V.P. for Res & Prof, Agricul- tural Engineering 1,2 LAWRANCE N. SHAW Prof, Agricultural Mach. 2 SUN-FU SHIH Prof, Hydrology 1,2 W. DAVID SHOUP Act Asst Dean & Prof, Mech Eng 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 Engineering 2,3 DENNIS G. WATSON Asst Prof, Software Development & Utilization 4 J C. WEBB Adj Prof, Insect Attractants 1,2,3 GERALD L. ZACHARIAH V.P. for Agr Affairs & Prof 1,2,3 FEDRO S. ZAZUETA Assoc Prof, Water Management CRIS Projects: AGE02154 Biomass Production and Energetic Systems Analyses J. W. Mishoe R. C. Fluck J. W. Jones AGE02245 Heat and Mass Transfer in Fruits and Veg- etables During Postharvest Operations K. V. Chau C. D. Baird J.J. Gaffney M. T. Talbot AGE02276 Agricultural Meteorology and Climatology for Production in the Southern Region S. F. Shih AGE02486 Utilization of Animal Waste as Energy and Nutrient Souces in Warm, Humid Climates R. A. Nordstedt E. P. Lincoln 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 26 Agricultural Engineering AGE02487 Trickle Irrigation in Humid Regions A. G. Smajstrla F. S. Zazueta D. H. Burgess G. A. Clark AGE02501 Systems Analysis of Dairy Cattle Production G. H. Smerage 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 Functions 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 Phosphorus and Nitrogen Transport A. B. Bottcher F. T. Izuno AGE02643 Energy Analysis and Measurement of Agricul- tural Systems R. C. Fuck 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 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 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 AGE02837 Effect of Land Treatment of Municipal Wastewater on Water Quality and Crop Production A. R. Overman AGE03007 Meteorological Research and Agricultural ManagementModeling for Southern Agriculture J. W. Mishoe S. F. Shih R. M. Peart J. W. Jones P. H. Jones AGE02855 Design of Structures for Optimum Agricul- tural Production R. A. Bucklin AGE02845 Use of Controlled Eutrophication in Aquac- ulture and Animal Production E. P. Lincoln J.F. Earle Refereed Publications: R-00459 Bryant, C. T. and Shih, S. F. Hydraulic Conduc- tivity Analysis of Lake Apopka, Florida. Soil and Crop Science Society 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 R-00690 Bucklin, R. A.; Thompson, S. A. and Ross, I. J. Flow Patterns in Model Grain Bins. American Society of Agricultural Engineers 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 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 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Agricultural Engineering 27 R-00708 Graham, W. D. and McLaughlin, D. B. A Stochastic Model of Solute Transport in Ground- water Application to the Borden,Ontario Tracer Test. Water Resources Research R-00021 Graham, W. D. and McLaughlin, D. B. Stochastic Analysis of Non-Stationary Subsurface Solute Transport: 2. Conditional Moments. Water Resources Research (WRR) R-00796 Harell, R. C.; Adsit, P. D.; Pool, T. A. and Hoffman, R. The Florida Robotic Grove-Lab. American Society of Agricultural Engineers R-00240 Hodges, A. W. and Shoup, W. D. Simulation of Gum Naval Stores Production Systems. Agricultural Systems R-00676 Jones, P.; Jones, J. W. and Hwang, Y. Simulation for Determining Greenhouse Temperature Setpoints. American Society of Agricultural Engineering R-00028 Lal, H.; Peart, R. M.; Jones, J. W. and Shoup, W. D. An Intelligent Information Manager for Knowledge-Based Systems. Applied Engineering in Agriculture 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 R-00587 Lal, H.; Peart, R. M.; Jones, J. W. and Shoup, W. D. An Object-Oriented Field Operations Simulator. American Society of Agricultural Engineers R-00027 Lal, H.; Peart, R. M.; Shoup, W. D. and Jones, J. W. Expert Result Analyzer for a Field Operations Simulator. Electronics and Computers in Agriculture 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 R-00793 Overman, A. R. and Wilkinson, S. R. A Model of Vertical and Seasonal Distribution of Coastal Bermudagrass. American Society of Agricultural Engineers R-00326 Peck, M. W. and Chynoweth, D. P. On-Line Monitoring of the Methanogenic Fermentation by Measurement of Culture Fluorescence. Biotechnology Letters 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 R-00283 Shih, S. F. Satellite Data and Geographic Information System for Rainfall Estimation. Journal of Irrigation and Drainage Engineering R-00148 Shih, S. F. and Jordan, J. D. Remote Sensing Application in Well Monitoring. Journal of Irrigation and Drainage Engineering R-00460 Still, D. S. and Shih, S. F. Rainage Network Analysis for the Econlochatchee River Basin. Soil and Crop Science Society R-00297 Tan, Y. R. and Shih, S. F. Current Agricultural Landuse for Abandoned Well Assessment. Soil and Crop Science Society R-00403 Tan, Y. R. and Shih, S. F. GIG in Agricultural Landuse Study and Abandoned Well Assessment. American Society of Agricultural Engineers R-00734 Turick, C. E.; Peck, M. W.; Chynoweth, D. P.; Jerger, D. E.; White, E. H.; Zsuffa, L. and Kenney, W. A. Methane Fermentation of Woody Biomass. Biomass R-00112 Vellidis, G.; Smajstrla, A. G. and Zazueta, F. S. Continuous Soil Water Potential Measurement with a Microcomputer-Based Data Acquisition System. Computers and Electronics in Agriculture R-00588 Vellidis, G.; Smajstria, A. G. and Zazueta, F. S. Continuous Soil Water Potential Measurement with a Microcomputer-Based Data Aquisition System. Applied Engineering in Agriculture R-00445 Vellidis, G.; Smajstrla, A. G. and Zazueta, F. S. Soil Water Infiltration, Redistribution, and Extraction Patterns of Drip-Irrigated Tomatoes. American Society of Agricultural Engineering R-00296 Xin, J. N. and Shih, S. F. Estimation of Lake Okeechobee Temperature Distribution by Satellite Data. Soil and Crop Science Society 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 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction 28 Agricultural Engineering Non-Refereed Publications: N-00171 Cheng, K. S. and Shih, S. F. Potential Applica- tion of GOES Satellite Data for Rainfall Estimation in Florida. Soil and Crop Science Society N-00065 Jordan, J. D. and Shih, S. F. Photogrammetric Estimation of Artesian Well Flow Rate. Soil and Crop Science Society N-00097 Myhre, B. E. and Shih, S. F. Use of Geographic Information Systems for a Well Monitoring Program. Soil and Crop Science Society N-00157 Overman, A. R. and Blue, W. G. Estimating Yields and Forage N for Bahiagrass Production in Florida. Soil and Crop Science Society N-00150 Talbot, M. T.; Sargent, S. A.; Brecht, J. K. and Risse, L. A. Evaluating Commercial Precooling for Sweet Corn. Florida State Horticultural Society Research Grants: Beck H W. Development Of Intelligent Information Retrieval Technologies. State University System. 01/24/90-01/23/91. $50,000 Bottcher A B. Bmps For Mitigating Nitrate Contamina- tion Of Groundwater Under North Florida Dairies. Dept Of Environmental Regulation. 02/16/90- 12/01/90. $33,900 Bottcher A B. 1990 Florida Water Resources Research Center Program. U S Dept Of Interior. 04/01/89- 03/31/91. $20,700 Campbell K L. Biogeochemical Behavior & Transport Of Phosphorus In The Lake Okeechobee Basin. Water Management Districts. 08/14/87-09/30/90. $238,400 Campbell K L. Gatorade Allocation For Water Manage- ment Project. Uf Div Of Sponsored Research. 01/02/90-01/01/91. $15,265 Campbell K L. Biogeochemical Behavior & Transport Of Phosphorus In Lake Okeechobee Basin. Water Management Districts. 08/14/87-09/30/90. $144,400 Chau K V. Development Of Portuguese Food & Agricul- ture Sector. Univ Catolica Protuguesa. 11/06/89- 12/16/89. $5,000 Chynoweth D P. Biogasification Of Wood Biomass. Gas Research Institute. 03/01/86-04/30/90. $76,059 Chynoweth D P. Methane From Community Wastes Treatment Systems: Operation Of Anaeroric Digestion Etu. U S Dept Of Energy. 02/01/88- 12/31/90. $199,986 Earle j F. Preliminary Evaluation Of Plastics Degradation: Exposure & Testing. State University System. 12/01/89-12/31/90. $6,962 Earle J F. Municipal Solid Waste Management Program For Liberty County Waste Quantification. Liberty County. 06/25/90-08/25/90. $8,925 Graham W D. Statistical Characterization Of Ground- water Fluctuations & Hydrogeologic Properties. Water Management Districts. 01/22/90-06/30/91. $19,819 Jones J W. Computer Systems For Enhancing Agricultural Decision Making In The Caribbean. U S Dept Of Agriculture. 07/01/89-06/30/90. $15,000 Jones P H. Fsgc-usrp. Nasa and Matching Fsgc-usrp. Uf Div Of Sponsored Research. 05/01/90-04/30/91. $3,418 Overman A R. Wastewater Irrigation At Tallahassee. City Of Tallahassee. 01/01/89-09/30/90. $30,000 Peart R M. Assessing The Impact Of Climate Change On Soybean Productivity. Environmental Protection Agncy. 07/17/89-07/16/92. $154,337 Shaw L N. Precision Planter Testing. Italian Trade Commission. 06/01/89-03/31/90. $9,000 Shih S F. Groundwater Flow Analysis Study Of Lake Apopka, Florida. Water Management Districts. 07/17/89-02/16/90. $36,000 Teixeira A A. Microbial Population Dynamics For Bioprocess Sterilization. State University System. 01/24/90-01/23/91. $19,900 Zazueta F S. Mobile Irrigation Laboratory Analysis & Management Recommendations Software. W Coast Reg Water Supply Auth. 07/01/89-12/15/90. $9,168 Zazueta F S. Agricultural Irrigation Database Manager. Water Management Districts. 05/01/90-04/30/91. $20,000 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Agronomy 29 AGRONOMY 4 STEPHAN L. ALBRECHT Adj Assoc Prof, Plant Physiology 2,3 JERRY M. BENNETT Prof, Water Management 1,2 KENNETH J. BOOTE Prof, Plant Physiology 4 NORMAN E. BORLAUG Adj Prof, Food & Feed Production 1,2 KENNETH L. BUHR Asst Prof, Plant Breeding 2,3 CARROL G. CHAMBLISS Assoc Prof, Extension Specialist Forage 2,3 FRANK J. COALE Asst Prof, Extension Agronomist 2,3 DANIEL L. COLVIN Asst Prof, Extension Weed Science Specialist 1,2,3 CHARLES E. DEAN Chair and Prof, 1,2 JOHN R. EDWARDSON Prof, Cytogenetics 1,2 EDWIN C. FRENCH III Assoc Prof, Farming Systems 1,2 RAYMOND N. GALLAHER Prof, Multiple Cropping 1,2 WILLIAM T. HALLER Prof Aquatic Weeds 2 CHARLES G. HANLON Asst in Limnology and Fisheries 2,3 CLIFTON K. HIEBSCH Assoc Prof, Extension Specialist Soybeans 4 KUELL HINSON Adj Prof, Soybean Genetics & Breeding 1,2,3 JOSEPH C. JOYCE Dir & Prof, Aquatic Plants 1,2 DAVID A. KNAUFT Prof, Plant Breeding 2,3 KENNETH A. LANGELAND Assoc Prof, Aquatic Weeds 1,2 FERDINAND LEGRAND Assoc Prof, Biomass Conversion 1,2 GALE F. LORENS Asst Prof, Molecular-Cellular Biologist 1,2 PAUL L. PFAHLER Prof, Genetics 1,2 GORDON M. PRINE Prof, Field Crop Ecology 1,2 KENNETH H. QUESENBERRY Prof, Forage Genetics & Breeding 1,2 STANLEY C. SCHANK Prof, Forage Genetics & Breeding 1,2 DONN G. SHILLING Assoc Prof, Weed Science 4 THOMAS R. SINCLAIR Adj Prof, Plant Physiology 1,2 REX L. SMITH Prof, Forage Genetics & Breeding 1,2 LYNN E. SOLLENBERGER Assoc Prof, Tropical Forage Management 4 SHERLIE H. WEST Adj Prof, Seed Tech & Physiology 2,3 ELMO B. WHITTY Prof, Extension Specialist Peanuts, Crop Management Tobacco 1,2 MERRILL WILCOX Prof, Herbicide Biochemistry 4 MARY J. WILLIAMS Adj Asst Prof, Forage 1,2 DAVID S. WOFFORD Asst Prof, Gentics & Plant Breeding 1,2 E. T. YORK JR Disting Serv Prof, Plant Breeding CRIS Projects: AGR02260 Technology Generation for Enterprises on Small Farms in North Florida E. C. French AGR02356 Irrigation and Drainage of Citrus on Flatwoods Soils L. H. Allen AGR02358 Control and Biology of Selected Aquatic Weeds in Florida V. V. Vandiver AGR02381 Life History, Population Dynamics, and Interference: A Basis for Understanding Weed Biology D. L. Colvin D. G. Shilling AGR02459 Forage Plant Improvement from New Germplasm Under Varied Management O. C. Ruelke AGR02461 Identification and Characterization of Geminiviruses Occurring in the Caribbean Basin J. R. Edwardson R. G. Christie S. R. Christie D. D. Baltensperger E. S. Homer K. H. Quesenberry AGR02476 Breeding Improved Germplasm of Temperate Pasture and Forage Legumes K. H. Quesenberry D. S. Wofford AGR02484 Persistence, Productivity and N Value of Tropical Legumes in Grass Pastures C. G. Chambliss AGR02495 Seed Quality and Viability Maintenance S. H. West 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 30 Agronomy AGR02507 Investigations of Inclusions Induced by Plant Viruses J. R. Edwardson R. G. Christie AGR02516 Potyvirus and Cucumovirus Interaction with Forage Legumes (TAD) J. R. Edwardson D. S. Wofford AGR02539 Environmental and Genotypic Control of Assimilate Allocation in Crops K. J. Boote J. M. Bennett C. K. Hiebsch AGR02542 The Role of Glycoproteins in Regulating Stress in Plants G.J. Fritz 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 AGR02572 Establishment, Response to Defoliation, and Utilization of N-75 Dwarf Napiergrass L. E. Sollenberger AGR02589 Genetics, Physiology, Ecology and Utilization of Tropical Forage Legumes K. H. Quesenberry L. E. Sollenberger 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 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 AGR02739 Genetics, Physiology, Ecology, and Utiliza- tion of TropicalForage Legumes K. H. Quesenberry L. E. Sollenberger AGR02742 Establishment, Response to Defoliation, and Utilization of N-75 Dwarf Napiergrass L. E. Sollenberger AGR02761 Improved Production of Herbs and Spices E. C. French D. L. Colvin F. leGrand 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 AGR02771 Soybean Breeding K. Hinson 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Agronomy 31 AGR02840 Aquatic Herbicide Dissipation in Flowing Water W. T. Haller K. A. Langeland D. G. Shilling AGR02824 Defoliation Responses and Quality-Related Characteristics of Pennisetum Forages L. E. Sollenberger 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 AGR02812 Ecological Responses of Crop Plants to the Environment in a Systems Management Approach C. K. Hiebsch 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 Refereed Publications: R-00388 Allen, Jr., L. H.; Bisbal, E. C.; Campbell, W. J. and Boote, K. J. Carbon Dioxide Effects on Soy- bean Development Stages and Expansive Growth. Soil and Crop Science Society 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 R-00813 Baltensperger, D. D.; Wofford, D. S. and Anderson, W. H. Registration of FL-ML White Clover Germplasm. Crop Science R-00338 Bennett, J. M.; Sexton, P. J. and Boote, K. J. A Root Tube-Pegging Pan Technique for Determin- ing the Effects of Soil Water in the Pegging and Rooting Zone on Peanut Formation. Peanut Science R-00031 Campbell, W. J.; Allen, Jr., L. H. and Bowes, G. Response of Soybean Canopy Photosynthesis to C02 Concentration, Light and Temperature. Journal of Experimental Botany R-00370 Chaparro, C. J.; Sollenberger, L. E. and Linda, S. B. Grazing Management Effects on Aeschy- nomene Seed Production. Crop Science R-00213 Chowdhury, M. K.; Schaeffer, G. W.; Smith, R. L.; DeBonte, L. R. and Matthews, B. F. Mito- chondrial DNA Variation in Long Term Tissue Cultured Rice Lines. Theoretical and Applied Genetics R-00633 Colvin, D. L.; Shokes, F. M.; Shilling, D. G.; Brecke, B. J. and McCarty, L. B. Effects of Tillage and Wheat Straw Leachates on the Germination and Incidence of Sclerotium rolfsii in Peanuts. Peanut Science R-00681 Fox, A. M. and Haller, W. T. use of Rhodamine WT Dye to Predict Herbicide Dissipation in Moving Water. 8th European Weed Research Symposium on Aquatic Weeds, 1990 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 R-00679 Haller, W. T.; Fox, A. M. and Shilling, D. G. Hydrilla Control Program in the Upper St. Johns River, Florida, USA. 8th European Weed Research Symposium on Aquatic Weeds, 1990 R-00605 Holderbaum, J. F.; Sollenberger, L. E.; Moore, J. E.; Kunkle, W. E.; Bates, D. B. and Hammond, A. C. Protein Supplementation of Steers Grazing Limpograss Pasture. Journal of Production Agriculture R-00495 Homer, E. S. Registration of Maize Germplasm FS8A(S), FS8A(T), FS8B(S), ans FS8B(T). Crop Science 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 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction 32 Agronomy R-00550 Knauft, D. A. and Gorbet, D. W. Agronomic Performance and Genetic Shifts of Seed Mixtures in Peanut. Euphytica R-00034 Knauft, D. A. and Gorbet, D. W. Association of Peanut Plant Characteristics in Wide and Narrow Intrarow Spacings. Peanut Science R-00593 Knauft, D. A.; Branch, W. D. and Gorbet, D. W. Genetic Studies with White Peanut Testa Color. Journal of Heredity 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 R-00276 Knauft, D. A.; Gorbet, D. W. and Wood, H. C. The Influence of Seed Size on the Agronomic Performance of a Small-Seeded Spanish Peanut Line. Soil and Crop Science Society R-00705 McKellar, M. A.; Deren, C. W. and Quesenberry, K. H. Outcrossing in Aeschynomene americana. Crop Science R-00805 McKently, A. H.; Moore, G. A. and Gardner, F. P. Regeneration of and Perennial Peanut from Cultured Leaf Tissue. Crop Science 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 R-00703 Niles, W. L. and Quesenberry, K. H. Automatic Shaders Control Photoperiod in Field Plots. Crop Science R-00652 Ray, J. D.; Bennett, J. M.; Boote, K. J. and Ntamag, F. C. Genotype Differences in Soybean Responses to Water Deficits. Irrigation Science R-00311 Rowland, L. J. and Chourey, P. S. In Situ Hybridization Analysis of Kernels of Maize. Maydica 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 R-00617 Rowland-Bamford, A. J.; Baker, J. T.; Alien, Jr., L. H. and Bowes, G. E. Ribulose 1,5-Bisphosphate Carboxylase/Oxygenase Activity and Protein Content in Rice Grown under Various C02 Concentrations. Plant Physiology 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 Transvaal Digitgrass. Crop Science R-00435 Schank, S. C.; Ruelke, O. C.; Ocumpaugh, W. R.; Moore, J. E. and Hall, D. W. Registration of Survenola Digitgrass. Crop Science 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 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 R-00035 Smith, R. L. and Chowdhury, M. K. Character- ization of Pearl Millet Mitochondrial DNA Fragments Rearranged by Reversion from Cytoplas- mic Male Sterility. Plant Molecular Biology R-00680 Thayer, P. L. and Haller, W. T. Fungal Patho- gens Phoma and Fusarium, Associated with Declining Populations of Torpedograss Growing under High Water Stress. 8th Symposium on Aquatic Weeds, 1990 R-00405 Valle, R. R.; Mishoe, J. W.; Allen, Jr., L. H.; Jones, J. W. and Jones, P. H. Soybean Leaf Gas Exchange Responses to C02 Enrichment. Soil and Crop Science Society 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 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 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 Non-Refereed Publications: N-00199 Holderbaum, J. F.; Sollenberger, L. E.; Moore, J. E.; Bates, D. B.; Kunkle, W. E. and Hammond, A. C. Protein Supplementation of Steers Grazing Limpograss Pasture. 1990 Beef Cattle Research Report 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Agronomy 33 N-00210 Mansfield, C. W.; Bennett, J. M. and Baltensperger, D. D. Water Management Effects on Alyceclover. Soil and Crop Science Society N-00213 Niles, W. L.; French, E. C.; Hildebrand, P. E.; Kidder, G. and Prine, G. M. Establishment of Florigraze Rhizoma Peanut (Arachis glabrata) as Affected by Lime, Phosphorus, Potassium, Magne- sium and Sulfur. Soil and Crop Science Society N-00193 Ortega-S, J. A.; Sollenberger, L. E. and Quesenberry, K. H. Grazing Managemenmt for Optimum Rhizoma Peanut Production. Interna- tional Conference on Livestock in the Tropics 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 N-00139 Pfahler, P. L. and Barnett, R. D. Effects of Gibberellic Acid-Potassium Nitrate Seed Treat- ments on Early Seedling Growth in Two Rye Cultivars. Soil and Crop Science Society N-00195 Smith, R. L.; Schank, S. C.; Seib, J. C.; Chowdhury, M. K. and Wheeler, R. A. Develop- ment and Application of RFLP Genetic Markers in Breeding a Biomass Species. Energy from Biomass and Wastes N-00198 Woodard, K. R. and Prine, G. M. Propagation Quality of Elephantgrass Stems as Affected by the Fertilization Rate Used on Nursery Plants. Soil and Crop Science Society Research Grants: Boote K J. Yield Potential In Common Bean (phaseolus Vulgaris L.) Genotypes As Related To Seed Size. U S Dept Of Agriculture. 09/01/89-08/31/92. $42,000 Boote K J. Adapting The Soygro Crop Growth Model To Predict Oil & Protein Composition Of Soybean. Amer Soybean Association. 01/01/90-12/31/91. $60,000 Boote K J. Carbon Dioxide & Climate Effects On Photo- synthesis Growth & Yield Of Rice & Other Crops. U S Dept Of Agriculture. 12/01/88-09/30/91. $190,000 Boote K J. Temperature & Carbon Dioxide Effects On Development Growth & Yield Of Rice & Other Crops. US Dept Of Agriculture. 09/30/89- 09/29/92. $193,600 Boote K J. Computer Simulation Of Peanut Growth & Yield. Ga Agri Commodity Commission. 07/01/90-06/30/91. $3,000 Dean C E. Research Projects In Florida Tobacco Produc- tion. Dept Of Agricul & Consumer Ser. 03/22/90-06/30/91. $11,900 Dean C E. Research Project In Florida Soybean Produc- tion. Dept Of Agricul & Consumer Ser. 05/13/82-06/30/91. $32,000 Dean C E. Research Projects In Florida Peanut Produc- tion. Dept Of Agricul & Consumer Ser. 04/08/86- 06/30/91. $15,000 French E C. Improved Field Production Of Herbs & Spices. U S Dept Of Agriculture. 07/01/88- 06/30/90. $32,160 Gardner F P. Support Of Bachrein Research. Winrock Enterprises.09/01/89-09/01/91. $3,500 Haller W T. Evaluation Of Wacissa River For Hydrilla Control Programs. Dept Of Natural Resources. 06/20/89-12/01/89. $11,000 Hinson K. Soybean Variety Development. Uf Div Of Sponsored Researchl 1/16/89-11/01/90. $5,000 Knauft D A. Molecular Characterization Of High Oleic Acid Peanut Line. R J Reynolds Industries. 01/19/89-01/18/92. $75,500 Knauft D A. Peanut Variety Development. Florida Foundation Seed, Inc. 11/16/89-11/01/90. $25,000 Knauft D A. Improved Peanut Quality. Mars Inc. 04/01/90-03/31/91. $32,011 Langeland K A. Aquatic Pesticide Applicator Certifica- tion Training For Connecticut Dep. E P Educational Services. 11/09/89- 01/09/90. $1,200 Quesenberry K H. Evaluation OfTrifolium Spp. Response To Cylindrocladium Root Rot.. U S Dept Of Agriculture. 01/25/90-09/30/90. $8,225 Sollenberger L E. Defoliation Responses & Quality-related Characteristics Of Pennisetum Forages. U S Dept Of Agriculture. 07/01/89-06/30/90. $61,958 Wilcox M. Gatorade Allocation To The Dept Of Agronomy For Matching Funds For Premier Herbicide. Uf Div Of Sponsored Research. 09/18/89-06/30/90. $5,000 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 34 Animal Science ANIMAL SCIENCE 1,2 CLARENCE B. AMMERMAN Prof, Animal Nutrition 1,2,3 RICHARD L. ASQUITH Assoc Prof, Equine Health 4 JAMES N. BACUS Adj Assoc Prof, Meat Mibrobiologist 1,2 DOUGLAS B. BATES Assoc Prof, Animal Nutrition Ruminant 1,2 FULLER W. BAZER Grad Res Prof, Animal Physiology 4 JORGE J. BELTRAN Adj Assoc Prof, Animal Breeding 1,2 JOEL H. BRENDEMUHL Assoc Prof, Swine Nutrition 1,2 GEORGE E. COMBS JR Prof, Animal Nutrition Swine 1,2 JOSEPH H. CONRAD Prof, Animal Nutrition Tropical Animal Science 1,2 MAURICIO A. ELZO Asst Prof, Animal Breeding & Genetics 1,2 MICHAEL J. FIELDS Prof, Animal Physiology 4 RASMO GARCIA Adj Prof, Ruminant Nutrition 2 RODNEY D. GEISERT Vis Assoc Prof, Reproduc- tive Physiologists 1,2 DONALD D. HARGROVE Prof, Animal Breeding 1,2,3 F. GLENN HEMBRY Chair & Prof, Nutrition 1,2 DWAIN D. JOHNSON Assoc Prof, Meat Science 2,3 WILLIAM E. KUNKLE Assoc Prof, Extension Beef Specialist 1,2 SANDI LIEB Assoc Proj, Animal Nutrition 4 JOHN K. LOOSLI Adj Prof, Animal Nutrition 1,2 TIMOTHY T. MARSHALL Asst Prof, Beef Cattle 1,2 LEE R. MCDOWELL Prof, Animal Nutrition, Tropical Animal Science 1,2 JOHN E. MOORE Prof, Animal Nutrition, Forage 1,2 TIMOTHY A. OLSON Assoc Prof, Animal Nutrition 1,23 EDGAR A. OTT Prof, Animal Nutrition, Horses 2,3 ROBERT S. SAND Assoc Prof, Animal Science, Extension Beef Specialist 1,2 DANIEL C. SHARP Ill Prof, Animal Physiology, Horse 1,2 ROSALIA C. SIMMEN Assoc Prof, Biochemistry & Molecular Biology 1,2 DONALD L. WAKEMAN Prof, Animal Science 2,3 WILLIAM R. WALKER Assoc Prof, Extension Swine Specialist 1,2 ROGER L. WEST Prof, Meat Science 2 CALVIN E. WHITE Assoc Prof, Swine Nutrition 4 MARCUS A. ZANETTI Adj Assoc Prof, Nutrition CRIS Projects: ANS02031 Development of a Vaccine Against Haemonchus Contortus in Sheep P. E. Loggins ANS02193 Dairy Calves for Herd Replacements, Veal and Slaughter Beef R. L. West ANS02253 Improvement of Baby Pig Survival by Improved Nutrition G. E. Combs J. H. Brendemuhl W. R. Walker C. E. White ANS02259 Fertility, Growth and Maternal Ability in Angus, Brahman, Charolais and their Crosses M. Koger T. A. Olson ANS02282 Improvement in Efficiency of Beef Production in Brahman Cattle J. F. Hentges M. J. Fields A. C. Wamick R. S. Sand ANS02295 Ivermectin as an Agent in Control and Treatment of Parasites in Horses R. L. Asquith ANS02323 Mineral Interrelationships, Bioavailability and Toxicity in Ruminants C. B. Ammerman L. R. McDowell ANS02337 Evaluation of Florida Produced Feed Ingredi- ents for Swine Diets G. E. Combs W. R. Walker J. H. Brendemuhl ANS02343 Relationship Between Frame Size and Level of Upgrading with Production Efficiency in Brahman Cattle T. A. Olson D. D. Hargrove 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Animal Science 35 ANS02344 Evaluation of Reproductive Characteristics in Brahman Bulls and their Relationship to Produc- tion Traits in Brahman Cattle T. A. Olson D. D. Hargrove ANS02501 Systems Analysis of Dairy Cattle Production T. A. Olson S. C. Denham ANS02509 Improving Reproductive Efficiency of Cattle and Swine A. C. Warnick M. J. Fields F. W. Bazer 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 F. W. Bazer Embryonic Survival ANS02620 Alternative Crossbreeding Systems to Produce Cattle Adapted to Florida 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 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 ANS02767 Determination of Protein Interactions Responsible for Processed Meat Quality J. W. Lamkey D. D. Johnson R. L. West 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 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 Alternatie Energy Feed Sources for Swine Diets G. E. Combs C. E. White J. H. Brendemuhl W. R. Walker 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 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 36 Animal Science 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 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 R-00345 Denham, S. C.; Larsen, R. E.; Boucher, J. and Adams, E. L. Structure and Behavior of a Deter- ministic Model of Reproductive Performance. Agricultural Systems R-00333 Dones-Smith, M. M.; Mirando, M. A.; Vallet, J. L.; Bazer, F. W. and Buhi, W. C. Endometrial Secretory Response to OTP-1 and Recombinant Human Interferon-Alpha in the Ewe. Journal of Endocrinology 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 R-00267 Harney, J. P. and Bazer, F. W. Effects of Concep- tus and Conceptus Secretory Products on Uterine Development in the Pig. Journal of Reproduction, Fertility and Development R-00192 Harney, 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 R-00090 Huffman, 3. 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 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 R-00375 McDowell, L. R.; Gordon, B. J.; Merkel, R. C.; Fadok, V.; Wilkinson, N. S. and Kunkle, G. A. Mineral Status Comparisons of Goats in Florida, Emphasizing Zinc Deficiency. Small Ruminant Research R-00248 Merkel, R. C.; McDowell, L. R.; Popenoe, H. L. and Wilkinson, N. S. Comparison of the Mineral Content of Milk and Calf Serum from Water Buffalo. Livestock Research for Rural Development 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 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 R-00735 Mirando, M. A.; Ott, T. L.; Hamey, J. P. and Bazer, F. W. Ovine Trophoblast Protein-One Inhibits Development of Endometrial Responsive- ness to Oxytocin in Ewes. Biology of Reproduction R-00111 Mtimuni, J. P. and McDowell, L. R. Performance of Beef Cattle Fed Dwarf (Mott) and Tall Napiergrasses (Pennisetum purpureum) Supple- mented with Maize Bran. International Journal of Animal Sciences R-00767 Ochoa, L.; McDowell, L. R.; Williams, S. N.; WIlkinson, N. S.; Boucher, J. and Lentz, E. Serum and Tissue Tocopherol Concentration in Sheep Fed Different Sources of Vitamin E. Journal of Animal Science R-00122 Olson, T. A.; Filho, K. E.; Cundiff, L. V.; Koger, M.; Butts, Jr., W. T. and Gregory, K. E. Effects of Breed Group by Location Interaction on Crossbred Cattle in Nebraska and Florida. Journal of Animal Science R-00650 Panagakis, P. B.; Walker, W. R.; Bucklin, R. A. and Combs, G. E. Comparison of Heating Systems and Protein Sources on the Performance of Early Weaned Pigs. Livestock Producion Science R-00295 Pastrana, R.; McDowell, L. R. and Conrad, J. H. Mineral Concentrations in Leaves and Stems of Various Forages of the Colombian Paramo. Com- munications in Soil Science and Plant Analysis R-00305 Pastrana, R.; McDowell, L. R.; Conrad, J. H. and Wilkinson, N. S. Mineral Status of Sheep in the Paramo Region of Colombia. I. Macrominerals. Small Ruminant Research R-00306 Pastrana, R.; McDowell, L. R.; Conrad, J. H. and Wilkinson, N. S. Mineral Status of Sheep in the Paramo Region of Colombia. II. Microminerals. Small Ruminant Research 2 Research 3 Extension 4 Other UF or Cooperating Agency I ResidentInstruction Animal Science 37 R-00313 Pastrana, R.; McDowell, L. R.; Conrad, J. H. and Wilkinson, N. S. Productivity of Colombian Sheep Supplemented with Selenium. Small Ruminant Research 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. Buffalo Journal R-00427 Prabowo, A.; McDowell, L. R.; Wilkinson, N. S.; Wilcox, C. J. and Conrad, J. H. Mineral Status of Grazing Cattle in South Sulawesi, Indonesia: I. Macrominerals. Asian-Australian Journal of Animal Science R-00428 Prabowo, A.; McDowell, L. R.; Wilkinson, N. S.; Wilcox, C. J. and Corad, J. H. Mineral Status of Grazing Cattle in South Sulawesi, Indonesia: II. Microminerals. Asian-Australian Journal of Animal Science R-00077 Williams, S. N.; Lawrence, L. A.; McDowell, L. R.; Wilkinson, N. S. and Wamick, A. C. Bone Parameters to Evaluate Cattle Phosphorus Status. I. Chemical, Physical and Mechanical Properties. Journal of Animal Science 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 R-00113 Young, K. H.; Buhi, W. C.; Davis, J.; Horseman, N. D.; Kraeling, R. R.; Linzer, D. and Bazer, F. W. Biological Activities of Glycosylated and Nonglycosylated Porcine Prolactin. Molecular and Cellular Endocrinology 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 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 Non-Refereed Publications: N-00002 Bates, D. B.; Kunkle, W. E.; Chambliss, C. G. and Cromwell, R. P. Effect of Wilting and Ammo- nia Treatment of Bermudagrass and Rhizoma Peanut Prior to Ensiling as Round Bales. Florida Beef Cattle Research Report N-00016 Bates, D. B.; Kunkle, W. E.; Dawson, T. E.; Berthe, A.; Denham, S. C.; Chambliss, C. G.; Cromwell, R. C.; Wasdin, J. G. and Wakeman, D. L. Round Bale Silage A Forage Harvesting Alternative. Florida Beef Cattle Short Course N-00003 Bates, D. B.; Morantes, G. A. and Moore, J. E. Nitrogen Utilization by Lambs Fed Limpograss Supplemented with Molasses-Urea. Florida Beef Cattle Research Report N-00004 Schwingel, W. R.; Bates, D. B.; Denham, S. C. and Beede, D. K. Effects of Potassium and Sodium on In Vitro Ruminal Fermentations in the Presence of lonophores. Florida Beef Cattle Research Report Research Grants: Ammerman C B. Bioavailabilty Of Copper Lysine For Chicks & Sheep. Zinpro Corporation. 01/01/90- 12/31/90. $11,000 Asquith R L. Equine Parasitology Research Project With Invermectin In Northern Mainland China. Merck & Company. 07/19/89-07/18/90. $1,600 Bazer F W. Porcine Conceptus-endometrial Interactions Affecting Concepts Survival. U S Dept Of Agriculture. 09/01/89-08/31/91. $306,000 Bazer F W. Endometrial Response To Conceptus Secre- tory Proteins. National Institutes Of Health. 07/01/87-06/30/90. $102,088 Bazer F W. Editorial Office Society For The Study Of Reproduction. Society For The Study Of Repro. 06/15/89-12/31/90. $35,090 Fields M J. Bovine Relaxin: A Placental Source & Effects On Prostaglandin & Steroid Metabolism. Bard. 01/01/88-12/31/90. $36,720 Johnson D D. Evaluation Of Goat Meat. Embassy Of Arab Repub Of Egypt. 01/09/90-06/08/90. $5,319 Lamkey J W. The Utilization Of Utility Beef As Raw Material For New Product. Fl Beef Council. 01/01/90-12/31/90. $22,125 Leak F W. Beef Update For Food Service. Fl Beef Council. 02/08/90-12/31/90. $3,000 McDowell L R. Mineral & Vitamin Nutrition For Tropi- cal Grazing Ruminants. U S Dept Of Agriculture. 07/01/89-06/30/90. $37,224 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction 38 Animal Science McDowell L R. Vitamin E Bioavailability. Hoffmann-la Roche. 01/04/89-01/03/90. $7,500 Ott E A. Establishment Of Baseline Mineral Concentra- tions In Soil & Forages In Marion County. Fl Thoroughbred Breeders. 04/02/90-03/31/91. $3,250 Sharp D C. The Springtime Anovulatory Follicle: Its Regulation & Clinical Management. Grayson Foundation. 09/01/89-08/31/92. $30,150 Simmen R C. Uteroferrin Gene Expression During Development. National Institutes Of Health. 07/01/89-06/30/91. $199,257 1 Resident Instruction 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 2 Research 3 Extension 4 Other UF or Cooperating Agency Dairy Science 39 DAIRY SCIENCE 1,2 KERMIT C. BACHMAN Assoc Prof, Biochemis- try, 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 1,2,3 BARNEY HARRIS JR Prof, Nutrition 1,2 H. HERBERT HEAD Prof, Animal Physiology Lac. 1,2,3 ROGER P. NATZKE Chair & Prof, Mastitis & Milking Management 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, Animal Physiology Reproduction 2 HAROLD H. VAN HORN JR Prof, Animal Nutrition 1,2 CHARLES J. WILCOX Prof, Genetics CRIS Projects: DAS02193 Dairy Calves for Herd Replacements, Veal and Slaughter Beef H. H. Van Horn H. H. Head K. C. Bachman DAS02376 Macromineral Electrolyte Nutrition and Metabolism of Hyperthermic and Euthermic Lactating Dairy Cows D. K. Beede C. J. Wilcox C. R. Staples DAS02469 Reducing Embryonic Mortality Associated with Heat Stress and Repeat Breeding W. W. Thatcher M. Drost DAS02501 Systems Analysis of Dairy Cattle Production M. A. DeLorenzo C. J. Wilcox DAS02531 The Function of Proteins Secreted by the Periattachment Bovine Conceptus W. W. Thatcher P. J. Hansen 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 W. W. Thatcher P. J. Hansen DAS02886 Long-term Evaluation of Bovine Soma- totropin (bSTH) on Performance of Lactating Dairy Cows H. H. Head C. J. Wilcox C. R. Staples DAS02991 Porcine IgG Receptors in Developing and Lactating Mammary Gland F. A. Simmen Refereed Publications: R-00340 Bachman, K. C. and Wilcox, C. J. Effect of High-Density Lipoprotein upon Lipase Distribution and Spontaneous Lipolysis in Bovine Milk. Journal of Dairy Science 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 R-00591 Bachman, K. C.; Elvinger, F. and Head, H. H. Somatotropin (Growth Hormone): Effects on Lactogenesis and Milk Production. Modem Concepts of Biology of Lactation R-00747 Elvinger, F.; Hansen, P. J. and Natzke, R. P. Modulation of Function of Bovine Polymorpho- nuclear Leukocytes and Lymphocytes by Elevated Temperatures In Vitro and In Vivo. American Journal of Veterinary Research 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 40 Dairy Science 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 R-00365 Gross, T. S.; Thatcher, W. W.; O'Neill, C. and Danet-Desnoyers, G. Platelet-Activating Factor Alters the Dynamics of Prostaglandin and Protein Synthesis by Endometrial Explants from Pregnant and CyclicCows at Day 17 Following Estrus. Theriogenology R-00520 Hansen, P. J. Coat Colour in Holstein Cows Modifies Physiological and Milk Production Responses to Solar Radiation. Veterinary Record R-00033 Head, H. H. Artificial Induction of Lactation. Modem Concepts of Biology of Lactation R-00746 Lander, M. F.; Hansen, P. J. and Drost, M. Effects of Stage of the Estrous Cycle and Steroid Treat- ment on Uterine Immunologlobulin Content and Polymorphonuclear Leukocytes in Cattle. Theriogenology R-00337 Lander, M. L.; Hansen, P. J. and Drost, M. Antisperm Antibodies in Cows after Subcutaneous and Intrauterine Immunization. Veterinary Record 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 R-00803 Low, B. G.; Hansen, P. J. and Drost, M. Inhibi- tion of Lymphocyte Proliferation by Ovine Placenta Conditioned Culture Medium. Journal of Reproductive Immunology R-00373 Low, B. G.; Hansen, P. J.; Drost, M. and Gogolin-Ewens, K. J. Expression of Major Histo- compatibility Complex Antigens on the Bovine Placenta. Journal of Reproduction and Fertility R-00517 Lucy, M. C.; Staples, C. R.; Michel, F. M. and Thatcher, W. W. Effect of Energy Balance on the Size and Number of Ovarian Follicles Detected by Ultrasonography in Early Postpartum Dairy Cows. Journal of Dairy Science R-00518 Lucy, M. C.; Staples, C. R.; Michel, F. M. and Thatcher, W. W. Effect of Feeding Calcium Salts of Long-Chain Fatty Acids to Early Postpartum Dairy Cows on Plasma Concentration of Prostaglandin F2 Metabolite, and Follicular Growth. Journal of Dairy Science R-00394 Lucy, M. C.; Thatcher, W. W. and MacMillan, K. L. Ultrasonic Identifiction of Follicular Popula- tions and Return to Estrus in Early Postpartum Dairy Cows Given Intravaginal Progesterone for 15 Days. Theriogenology 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 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 Placen- tal Tissues of the Sheep. Theriogenology 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 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 R-00662 Plante, C.; Hansen, P. J. and Thatcher, W. W. Intrauterine and Intramuscular Administration of Recombinant Bovine Interferon-Alpha to Cows Alters Estrous Cycle Length, Ovarian Function and Oxytocin-Induced Release of Prostaglandin F-2a. Journal of Reproduction & Fertility 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 R-00658 Plante, C.; Hansen, P. J.; Thatcher, W. W.; Johnson, J. W.; Polard, J. W.; Mirando, M. A. and Bazer, F. W. Purification of Bovine Trophoblast Protein-i Complex and Quantification of its Microheterogeneous Variants as Affected by Culture Conditions. Journal of Reproductive Immunology R-00779 Simmen, F. A. Strategies for Identifying, Isolating and Sequencing Genes of Importance in Growth Biology. Journal of Animal Science R-00185 Stephenson, D. C. and Hansen, P. J. Induction by Progesterone of Immunosuppressive Activity in Uterine Secretions of Ovariectomized Ewes. Endocrinology 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Dairy Science 41 R-00201 Wang, C. and Beede, D. K. Effects of Dietary Thatcher W W. Utero-ovarian-conceptus Response To Protein Content on Acid-Base Status and Calcium Heat Stress In The Dairy Cow & Its Involvement. Metabolism of Nonlactating Jersey Cows. BARD. 08/21/89-08/20/92. $42,500 ADSA.SAS Abstracts Thatcher W W. Effect Of BSt On Ovarian Follicular Growth Establishment & Maintenance Of Preg- Non-Refereed Publications: nancy. Monsanto Company. 08/01/89-08/01/91. $73,560 N-00018 Head, H. H. The Strategic Use of the Physi- ological Potential of the Dairy Cow. Milk Production in the Tropics N-00169 Staples, C. R. Comparative Value of Grass Silage to Corn Silage as Forages for Cow and Heifer Diets. First Annual Ruminant Nutrition Popular Articles: T-00039 Staples, C. R. Don't Be Fooled by a Forage's Crude Protein. Southeast Dairy Outlook Research Grants: Bray D R. The Effect Of Pulsation Ratio On Mild Produc- tion & Udder Health. Alfa-laval. 03/01/90- 02/28/91. $6,550 Bray D R. Antibiotic Assay Of Milk & Urine. Upjohn Company. 05/17/90-12/31/90. $2,460 Hansen P J. Regulation Of Fertility In Cattle With Alpha-interferon. Ciba-Geigy Corporation. 10/01/88- 03/01/91. $47,929 Harris B H. Nutritional Evaluation Of Feather Meal For Lactating Dairy Cows. S E Poultry & Egg Associa- tion. 11/01/89-06/30/91. $22,000 Natzke R P. Increasing Efficiency Of Milk Production In Florida. Fl Dairy Farmers Association. 04/15/88- 04/15/91. 62,893 Simmen F A. Insulin-like Growth Factor-i (igf-i) In Neonatal Growth & Development. U S Dept Of Agriculture. 07/01/89-06/30/92. $420,000 Simmen F A. Porcine IgG Receptors In Developing & Lactating Mammary Gland. U S Dept Of Agricul- ture. 10/01/89-09/30/90. $79,415 Staples C R. The Effect Of Calcium Salts Of Long Chain Fatty Acids Bovine Somatotropin. Church & Dwight Company. 05/15/90-05/15/92. $19,000 Thatcher W W. Function Of Bovine Trophoblast Protein- 1 Secreted By The Conceptus. U S Dept Of Agriculture. 09/01/89-08/31/92. $480,000 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction 42 Editorial EDITORIAL 2,3 CARL W. BREEDEN Assoc Prof, Comm Spec, Radio-TV 2 MARY L. CILLEY Assoc Prof, Publications 2,3 RANDY W. MAULE Asst Prof, Electronic Comm 1,2,3 MILTON E. MORRIS Prof, Government Relations 2,3 JOANN B. PIERCE Assoc Prof, Publications 2 DONALD M. SPRINGER Chair and Prof 2 CHARLES T. WOODS Assoc Prof, News Media 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 Entomology and Nematology 43 ENTOMOLOGY AND NEMATOLOGY 4 HERNDON R. AGEE Adj Prof, Physiology 1,2 JON C. ALLEN Assoc Prof, Population Dynamics & Systems Analysis 2 KEITH L. ANDREWS Prof, Integrated Pest Mgt 4 ROSS H. ARNETT JR Adj Prof, Systematics 1,2 CARL S. BARFIELD Prof, Pest Management 1,2 FREDERICK D. BENNETT Grad Res Prof, Biological Control of Agricultural Pests 1,2 DRION G. BOUCIAS Assoc Prof, Insect Pathology 4 GARY R. BUCKINGHAM Adj Asst Prof, Biological Control 1,2 JERRY F. BUTLER Prof, Vet. Entomology 4 CARROLL O. CALKINS Adj Assoc Prof, Insect Behavior 1,2,3 JOHN L. CAPINERA Chair & Prof 4 DAVID A. CARLSON Adj Assoc Prof, Medical Entomology 4 ANDREW F. COCKBURN Adj Asst Prof, Molecular Biology 4 JAMES A. COFFELT Adj Asst Prof, Stored Production 1,23 HARVEY L. CROMROY Prof, Radiation Biology 4 DAVID A. DAME Adj Prof, Medical Entomology 4 DEAN F. DAVIS Adj Prof, Toxicology 4 HAROLD A. DENMARK Adj Prof, Acarology, Florida Division of Plant Industry 1,2 DONALD W. DICKSON Prof, Nematology 2,3 ROBERT A. DUNN Prof, Extension Nematology 4 CARL W. FATZINGER Adj Assoc Prof, Forest Entomology 4 STEPHEN M. FERKOVICH Adj Assoc Prof, Behavioral 4 RALPH W. FLOWERS Adj Asst Prof, Taxonomy, FAMU 4 DANA A. FOCKS Adj Asst Prof, Economic Entomology 1,2 JOHN L. FOLTZ Assoc Prof, Forestry 1,2 J. HOWARD FRANK Prof, Biological Control 4 PATRICK GREANY Adj Assco. Prof, Behavioral 4 SANTOSH GUPTA Adj Asst Prof, Systematics 2 VIRENDRA K. GUPTA Prof, Systematics 1,2 DALE H. HABECK Prof, Immatures 1,2 DONALD W. HALL Prof, Medical Entomology 2 HARLAN G. HALL Asst Prof, Honey Bee Genetics 4 AVAS B. HAMON Adj Asst Prof, Arthropods 4 ALFRED M. HANDLER Adj Asst Prof, Genetics 4 JOHN B. HEPPNER Adj Asst Prof, Systematics 2,3 FREDDIE A. JOHNSON Prof, Extension 4 DANIEL L. KLINE Adj Asst Prof, Medical and Veterinary Entomology 2,3 PHILIP G. KOEHLER Prof, Extension 4 WALLACE J. LEWIS Adj Assoc Prof, Insect Biocontrol, Tifton, Georgia 1,2 JAMES E. LLOYD Prof, Systematics 4 CLIFFORD S. LOFGREN Adj Prof, Medical Entomology 2 JAMES E. MARUNIAK Assoc Prof, Genetic Engineering 1,2 ELLIS L. MATHENY JR Prof, Economic Entomology 4 MARION S. MAYER Adj Prof, Biophysics 4 JOHN R. MCLAUGHLIN Adj Assoc Prof, Behavioral 1,2 ROBERT T. MCSORLEY Prof, Nematology 4 FRANK W. MEAD Adj Assoc Prof, Systematics 4 ROBERT L. METCALF Adj Prof, Pesticide Biochemistry 4 EVERETT R. MITCHELL Adj Prof, Behavioral 4 PHILIP B. MORGAN Adj Prof, Medical Entomology 4 SUDHIR X. NARANG Adj Assoc Prof, Isozyme Analysis 1,2 JAMES L. NATION Prof, Physiology 4 JOHN H. O BANNON Adj Prof, Nematologist 4 HERBERT OBERLANDER Adj Prof, Endocrinology 4 CHARLES W. OBRIEN Adj Assoc Prof, Aquatic Entomology, FAMU, Tallahassee 4 RICHARD S. PATTERSON Adj Prof, Medical Entomology 4 WILLIAM L. PETERS Adj Prof, Aquatic Entomology, FAMU 4 JOHN L. PETERSEN Adj Prof, Medical Entomologist/Geneticist 2 JIMMY R. RICH Prof, Nematology 2,3 MALCOLM T. SANFORD Prof, Apiculture 4 JACK A. SEAWRIGHT Adj Assoc Prof, Genetics 4 PAUL D. SHIRK Adj Asst Prof, Insect Molecular Biology 2,3 DONALD E. SHORT Prof, Extension 4 DONALD L. SILHACEK Adj Assoc Prof, Stored Products 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 44 Entomology and Nematology 4 JOHN M. SIVINSKI Adj Asst Prof, Insect Ecology 1,2 FRANK SLANSKY JR Assoc Prof, Nutritional Ecology 1,2 GROVER C. SMART JR Prof, Nematology 4 BURRELL J. SMITTLE Adj Prof, Radiation Biology 1,2 JERRY L. STIMAC Prof, Population Ecology 1 JOHN R. STRAYER Prof, Econ Ent 4 MICHAEL C. THOMAS Adj Asst Prof, Coleopterist 4 JAMES H. TUMLINSON III Adj Prof, Behavioral 4 ALBERT H. UNDEEN Adj Assoc Prof, Insect Pathology 4 ROBERT K. VANDER MEER Adj Asst Prof, Chemical Ecology 4 SUDHA VENKATACHARI Adj Asst Prof, Plant Nematode Interaction 4 KENNETH W. VICK Adj Assoc Prof, Physiology 1,2 THOMAS J. WALKER Prof, Ecology 4 HOWARD V. WEEMS JR Adj Prof, Taxonomy, Florida Division Plant Industry 4 DONALD E. WEIDHAAS Adj Prof, Medical Entomology 4 DAVID F. WILLIAMS Adj Asst Prof, Medical Entomology 4 BILLE R. WISEMAN Adj Prof, Plant Resistance, Tifton, Georgia 4 DANIEL P. WOJCIK Adj Asst Prof, Fire Ants 4 ROBERT E. WOODRUFF Adj Prof, Taxonomy, 4 RAYMOND K. YOKOMI Adj Asst Prof, Insect Vectors of Citrus Diseases 4 DAVID G. YOUNG Adj Assoc Res Sci, Sandflies 1,2 SIMON S. YU Prof, Insect Toxicology CRIS Projects: ENY02238 Biology and Management of Nematodes Affecting Agronomic Crops D. W. Dickson R. A. Dunn ENY02243 Development of Entomopathogens as Micro- bial Control Agents D. G. Boucias ENY02431 Biological Control of Selected Arthropod Pests and Weeds through Introduction of Natural Enemies D. H. Habeck F. D. Bennett J. H. Frank J. F. Butler ENY02437 Household Pest Management P. G. Koehler R. S. Patterson ENY02442 Biology and Transmission of Amblyospora (Microspora) Parasites of Florida D. W. HallENY02445 Entomopathogens for Use in Pest Management Systems D. G. Boucias J. E. Maruniak J. L. Capinera ENY02452 Behavior, Taxonomy, and Development of Selected Insect Species Infesting Slash Pine in Florida J. L. Foltz ENY02453 Bioecology and Control of Selected Arthro- pod Parasites of Domestic Tropical and Subtropical Animals J. F. Butler ENY02494 Biology and Management of Nematodes Affecting Vegetable Crops R. T. McSorley 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 ENY02551 Epidemiology and Control of Heartwater J. F. Butler C. E. Yunker 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 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Entomology and Nematology 45 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 ENY02676 Pathology and Efficacy of Beauveria bassiana Against Lesser Cornstalk Borer D. G. Boucias 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 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 ENY02828 Biocontrol of Plant-Parasitic Nematodes with Pasteuria spp. D. W. Dickson ENY02860 African Honeybee Migration Followed with DNA Markers H. G. Hall ENY02862 Toxicology of Agriculturally Important Insect Pests of Florida S.J. Yu ENY03012 Balance between the Intake of Beneficial Nutrients and Deleterious Allelochemicals in Caterpillars F. Slansky S.J. Yu ENY02846 Systematics, Ecology, and Behavior of Insects T. J. Walker ENY03006 Biological Control of Selected Arthropods, Pests and Weeds through Introduction of Natural Enemies F. D. Bennett J. H. Frank D. H. Habeck ENY02872 Systematics and Behavioral Ecology of Lampyridae (Coleoptera) J. E. Lloyd Refereed Publications: R-00526 Adeeye, O. A. and Butler, J. F. Field Evaluation of Carbon Dioxide Baits for Sampling Omithodoros turicata (Acari:Argasidae) in Gopher Tortoise Burrows. Journal of Medical Entomology R-00424 Allen, J. C. Chaos and Phase-Locking in Predator-Prey Models in Relation to the Functional Response. Florida Entomologist 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 46 Entomology and Nematology R-00047 Andrews, K. L. and Goodell, G. Do You Get What You Pay For? Visual Materials in Agricultural Extension for Preliterates-A Case Study from Honduras. Economic Development and Cultural Change R-00646 Atkinson, T. H.; Koehler, P. G. and Patterson, R. S. Catalog and Atlas of the Cockroaches (Dictyoptera:Blataria) of North America North of Mexico. Entomological Society of America 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 R-00561 Atkinson, T. H.; Koehler, P. G. and Patterson, R. S. Reproduction and Development of the Asian Cockroach, Blattella asahinai (Dictyoptera:- Blattellidae), Under Laboratory Conditions. Entomological Society of America R-00290 Atkinson, T. H.; Rabaglia, R. J.; Peck, S. B. and Foltz, J. L. New Records of Scolytidae and Platypodidae (Coleoptera) from the U.S. and Bahamas. Coleopterists Bulletin R-00144 Ballantyne, L. A. and Lloyd, J. E. A Check List for the Fireflies of Melanesia (Coleoptera:- Lampyridae). The Coleopterists Bulletin R-00101 Beard, C. B.; Butler, J. F. and Becnel, J. J. Nolleria pulicis n. gen., n. sp. (Microsporida: Chytridiopsidae), a Microsporidian Parasite of the Cat Flea, Ctenocephalides felis (Siphonaptera: Pulicidae). Journal of Protozoology R-00608 Bennett, C. A. and Buckingham, G. R. Labora- tory Biologies of Two Indian Weevils, Bagous affinis and Bagous laevigatus (Coleoptera:- Curculionidae) that Attack Tubers of Hydrilla verticillata (Hydrocharitaceae. Entomological Society of America R-00152 Bennett, F. D. Potential for Biological Control of the Stink Bug Nezura viridula, a Pest of Macadamias. Acta Horticultura 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 R-00299 Choate, P. M. A Checklist of the Ground Beetles of Florida (Coleoptera:Carabidae). The Florida Entomologist R-00551 Dickson, D. W. and McSorley, R. T. Interaction of Three Plant-Parasitic Nematodes on Corn and Soybean. Journal of Nematology R-00483 Frank, J. H. and McCoy, E. D. Endemics and Epidemics of Shibboleths and Other Things Causing Chaos. Florida Entomologist 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 R-00818 Gowan, T. D. Congress in the Wolf Spider, Lycosa lenta Hentz. Florida Entomologist R-00730 Gowan, T. D. Leaf-Couples Sperm Innduction in the Wolf Spider, Lycosa Lenta Hentz (Araneae:- Lycosidae). The Florida Entomologist R-00783 Gowan, T. D. Production of Eggs by the Wolf Spider, Lycosa lenta Hentz (Araneae:Lycosidae). The Florida Entomologist. R-00810 Gowan, T. D. Sexual Development and Nondeterminative Vitellogenesis in the Wolf Spider, Lycosa lenta Hentz (Araneae:Lycosidae). Florida Entomologist R-00731 Gowan, T. D. Unusual Courtship in Lycosa lenta Hentz (Araneae:Lycosidae).The Florida Entomologist R-00682 Gupta, V. K. A Review of the Exenterine Genus Acrotomus (Hymenoptera:Ichneumonidae). Entomofauna R-00511 Gupta, V. K. The Exenterine Genus Exenterus in the Oriental Region (Hymenoptera:- Ichneumonidae). Entomophaga R-00136 Gupta, V. K. The Parasitic Hymenoptera and Biological Control and our Knowledge of the African Ichneumonidae. Insect Science and its Application R-00357 Hall, D. W. The Environmental Hazard of Ethyleneglycol in Insect Pit-Fall Traps. The Coleopterists 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 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Entomology and Nematology 47 I I R-00447 Hogsette, J. A.; Butler, J. F.; Miller, W. V. and Hall, R. D. Annotated Bibliography of the North- ern Fowl Mite, Ornithonyssus sylviarum (Canestrini & Fanzago), (Acari:Macronyssidae). Entomological Society of America R-00083 Horton, D. R. and Capinera, J. L. Host Utiliza- tion by Colorado Potato Beetle (Coleoptera: Chrysomelidae) in a Potato/Weed (Solanum Sarrachoides Sendt.) System. Canadian Entomologist R-00809 Koehler, P. G. and Patterson, R. S. Residual Efficcy of Chlorpyrifos and Diazinon for German Cockroaches (Orthoptera:Blattellidae) in Commer- cial Food Preparation Areas. Journal of Agricultural Entomology R-00808 Koehler, P. G. and Patterson, R. S. Toxicity of Hydramethylnon to Laboratory and Field Strains of German Cockroach (Orthoptera:Blattellidae). Florida Entomologist R-00181 Koehler, P. G.; Lemke, L. A.; Patterson, R. S. and El-Gazzar, L. M. Insecticide Susceptibiity of the Cat Flea (Siphonaptera Pulicidae). Florida Entomologist 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 R-00410 Lloyd, J. E. Firefly Semiosystematics and Predation. Florida Entomologist R-00155 Maruniak, J. E.; Fiesler, S. E. and McGuire, P. M. Susceptibility of Insect Cells and Ribosomes to Ricin. Molecular and Cellular Biology R-00822 Matthews, D. L.; Habeck, D. H. and Hall, D. W. Annotated Checklist of the Pterophoridae (Lepi- doptera) of Florida Including Larval Food Plant Records. Florida Entomologist R-00601 McSorley, R. T. and Dickson, D. W. Spatial Dispersion of Nematodes in Small Plots. Journal of Nematology R-00172 McSorley, R. T. and Jansson, R. K. Spatial Patterns of Sweet Potato Weevil in Sweet Potato Fields and Development of a Sampling Plan. Sweet Potato Pest Management: A Global Perspective R-00256 McSorley, R. T. and Walter, D. E. Comparison of Soil Extraction Methods for Nematodes and Microarthropods. Agriculture, Ecosystems and Environment R-00766 Moser, B. A.; Koehler, P. G. and Patterson, R. S. Effect of Larval Diet on Cat Flea (Siphonaptera:- Pulicidae) Developmental Times and Adult Emergence. Journal of Economic Entomology R-00765 Moser, B. A.; Koehler, P. G. and Patterson, R. S. Effect of Methoprene and Diflubenzuron on Cat Flea (Siphonaptera:Pulicidae) Larval Development. Journal of Economic Entomology R-00764 Moser, B. A.; Koehler, P. G. and Patterson, R. S. Separation of Cat Flea (Siphonaptera:Pulicidae) Larval Instars by Individual Rearing and Head Width Measurements. Journal of Economic Entomology 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 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 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 R-00228 Need, J. T.; Butler, J. F.; Zam, S. G. and Wozniak, E. J. Protein Characterization of Argasid Tick Salivary Glands; Identification of Specific Proteins Eliciting an Antibody Response. Joumal of Medical R-00489 Nguyen, K. B. and Smart Jr., G. C. Survival of Steinerema scapterisci Nguyen & Smart in Soil. Soil and Crop Science Society 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 R-00355 Nguyen, K. B. and Smart, Jr., G. C. Vertical Migration of Steinernema scapterisci in Soil. Journal of Nematology 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 R-00560 Oostendorp, M.; Dickson, D. W. and Mitchell, D. J. Population Development of Pasteuria penetrans on Meloidogyne arenaria. Journal of Nematology 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 48 Entomology and Nematology R-00233 Payan, L. A. and Dickson, D. W. Malate Dehydrogenase, Phosphoglucomutase, and Phosphoglucose Isomerase Phenotypes in Popula- tion of Pratylenchus brachyurus and P. scribneri. Journal of Nematology 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 R-00210 Phillips, T. W. Attraction of Hylobius pales (Herbst) (Coleoptera:Curcululionidae) to Phero- mones of Bark Beetles (Coleoptera:Scolytidae). The Canadian Entomologist R-00282 Phillips, T. W. Responses of Hylastes salebrosus to Turpentine, Ethanol, and Pheromones of Dendroctonus (Coleoptera:Scolytidae). Florida Entomologist R-00151 Portillo, H.; O'Neil, R. J. and Andrews, K. L. Sampling Program and Action Threshold for Empoasca sp. in Dry Beans. Florida Entomologist R-00441 Powers, L. E. and McSorley, R. T. A Computer Simulation Model for Meloidogyne incognita on Alysicarpus vaginalis. Journal of Nematology 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 R-00572 Rich, J. R. and Hodge, C. H. Efficacy of Selected Fumigant Nematicides and Fenamiphos to Control Meloidogyne javanica in Florida Tobacco (Nicoti- ana tabacum L.). Nematropica R-00009 Rich, J. R.; Arnett, J. D.; Shepard, J. S. and Watson, M. C. Chemical Control of Nematodes on Flue-Cured Tobacco in Brazil, Canada, U.S.A. and Zimbabwe. Annuals of Applied Nematology R-00607 Rueda, A. A.; SlanskyJr., F. and Wheeler, G. S. Compensatory Feeding Response of the Slug Sarasinula plebeia (Soleolifera:Vemonicellidae) to DilutionofTwo Different Diets. Journal of Experimental Biology R-00498 Skelley, P. E. Observations on the Biology of Stephanucha thoracica Casey (Scarabaeidae:- Cetoniinae). Coleopterists Bulletin R-00040 Slansky, F. and Wheeler, G. S. Food Consump- tion and Utilization Responses to Dietary Dilution with Cellulose and Water by Velvetbean Caterpil- lars, Anticarsia gemmatalis. Physiological Entomology R-00420 Slansky, Jr., F. Insect Nutritional Ecology as a Basis for Studying Host Plant Resistance. Florida Entomologist R-00234 Tarjan, A. C.; Davis, J. S. and Nguyen, K. B. The Genus Prochroadora Filipjey, 1922 with a Rede- scription of Prochromadora Orleji (De Man, 1880) Filipjey, 1922 from a Marine Saltern in the People's Republic of China. American Microscopical Society R-00584 Trager, J. C. A Revision of the Fire Ants, Solenopsis geminata Group (Hymenoptera:- Formicidae, Myrmicinae). New York Entomological Society R-00509 Venkatachari, S.; Dickson, D. W. and Hewlett, T. E. Comparisons of Isozyme Phenotypes in Five Meloidogyne spp,. Using Isoelectric Focusing. Journal of Nematology R-00323 Walker, T. J. Butterfly Migration through North Peninsular Florida. Animal Behavior R-00014 Walker, T. J. and Figg, D. E. Song and Acoustic Burrrow of the Prairie Mole Cricket, Gryllotalpa major (Orthoptera:Gryllidae). Journal of the Kansas Entomological Society R-00008 Walker, T. J. and Forrest, T. G. Mole Cricket Phonotaxis: Effects of Intensity of Synthetic Calling Song (Orthoptera:Gryllotalpidae: Scapteriscuc acletus). Florida Entomologist R-00411 Wheeler, G. S. and Slansky, Jr., F. Compensatory Responses of the Fall Armyworm (Spodoptera frugiperda) when Fed Water- and Cellulose-Diluted Diets. Physiological Entomology 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 R-00041 Wing, S. R. Timing of Photinus collustrans Reproductive Activity: Finding a Mate in Time (Coleoptera:Lampyridae). The Coleopterists Bulletin R-00706 Yu, S. J. Insecticide Resistance in the Fall Armyworm, Spodoptera frugiperda (J. E. Smith). Pesticide Biochemistry and Physiology R-00154 Yu, S. J. Liquid Chromatographic Determination of Permethrin Esterase Actviity in Six Phytopha- gous and Entomophagous Insects. Pesticide Biochemistry and Physiology 2 Research 3 Extension 4 Other UF or Cooperating Agency I 1 Resident Instruction Entomology and Nematology 49 R-00698 Zoebisch, T. G.; Stimac, J. L. and Schuster, D. J. Methods for Estimating Relative and Absolute Densities of Adult Liriomyza trifolii (Burgess) Diptera:Agromyzidae) in Staked Tomato Fields. Journal of Economic Entomology Non-Refereed Publications: N-00197 Frank, J. H. and Bennett, F. D. Conclusion on Classical Biological Control. Southern Cooperative Series Bulletin 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. N-00017 McSorley, R. and Dunn, R. A. Infection of Five Species of Landscape Ornamentals by Root-Knot Nematodes (Meloidogyne spp.). Soil and Crop Science Society N-00148 Nguyen, K. B. and Smart, Jr., G. C. Survival of Steinernema scapterisci Nguyen and Smart in Soil. Soil and Crop Science Society N-00030 Westcott, R. L.; Atkinson, T. H.; Hespenheide, H. A. and Nelson, G. H. New Country and State Records, and other Notes for Mexican Buprestidae (Coleoptera). Insecta Mundi Research Grants: Barfield C S. Second Phase Of The Project Integrated Pest Management In Honduras. Escuela Agricola Panamericana. 10/01/86-12/31/89. $99,600 Barfield C S. Translation Of Spanish (to English) Train- ing Moduals On Biological Control. Caribbean Ag Res & Dev Inst. 06/07/90-07/07/90. $7,000 Boucias D G. Galactose-binging Insect Lectin In Defense Response(s) Against Invading Pathogens. National Science Foundation. 11/01/89-10/31/91. $61,875 Boucias D G. Semichemicals That Facilitate Biological Control Of Pest Lepidopter. U S Dept Of Agricul- ture. 08/01/85-07/31/90. $48,855 Butler J F. Merck Sharp & Dohme Research Labs Formu- lations For Control Of Sarcoptic Mange Of Dogs. Merck & Company. 06/01/89-05/31/90. $37,000 Butler J F. Semiochemicals As Attractions & Repellants For House Flies & Other Arthropods. Int Flavors & Fragrances. 07/01/87-06/30/91. $40,000 Dickson D W. Biocontrol Of Plant-parasitic Nematodes With Pasteuria Spp.. U S Dept Of Agriculture. 07/01/89-06/30/90. $47,632 Dunn R A. Biocontrol Agents For Control Of Root-knot Nematode In Turfgrasses. Ricerca. 07/10/89- 11/30/89. $13,500 Frank J H. Release Of Ormia depleta At Doral Golf And Country Club. Fl Turf-grass Association. 07/01/89- 06/30/90. $1,390 Frank J H. Experimental Dispersal Of Parasitic Nematodes By Mole Crickets. Fl Turf-grass Association. 10/01/89-12/31/91. $100,000 Habeck D H. Biological Control Of Hydrilla With Hydrellia pakistanae In Northern Florida. U S Dept Of Agriculture. 03/01/89-09/30/90. $38,000 Habeck D H. Biological Control Of Mutually Important Weed Pests Of Brazil & The United States. U S Dept Of Agriculture. 05/01/90-09/30/91. $15,000 Johnson F A. Information Database Development. University Of Hawaii. 03/15/90-09/15/90. $7,145 Koehler P G. House Fly Residue Studies. 3M Company. 01/01/89-07/01/89. $7,500 Koehler P G. Field Tests For German Cockroach Control. Johnson, S C & Son. 09/09/87-07/01/90. $53,760 Koehler P G. House Fly Residue Studies. 3M Company. 01/01/89-07/01/89. $7,500 Koehler P G. Field Studies With IGR On German Cockroaches. Mclaughlin Gormley King Co. 06/19/89-12/31/89. $29,000 Koehler P G. Bait Acceptance Trials. Johnson, S C & Son. 09/18/89-12/30/89. $1,200 Koehler P G. Flea Shipments. Amer Cyanamid Company. 07/01/89-10/01/89. $5,375 Koehler P G. Bait Acceptance Trials (evaluation For Cockroaches). Johnson, S C & Son. 09/18/89- 01/15/90. $900 Koehler P G. Evaluation Of Commercial Baits For Control Of Cockroaches In Apts. Insect Control & Research. 02/01/90-07/01/90. $6,000 Butler J F. Evaluation Of A Fly & Insect Trap. Crisanti, Joseph S. 03/01/90-06/30/91. $5,000 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 50 Entomology and Nematology Koehler P G. Field Tests For Control Of German Cock- roaches. Johnson, S C & Son. 09/09/87-07/01/90. $10,560 Koehler P G. Apartment Experiments For Control Of German Cockroaches. Johnson, S C & Son. 12/01/89-02/28/90. $30,000 Koehler P G. German Cockroach Control With Sulfuluramid Bait. Griffin Corporation. 04/23/90- 08/01/90. $9,600 Maruniak J E. Production & Research Of Baculoviruses For Insect Control. UF Research Foundation, Inc. 10/31/89-10/31/91. $10,000 Phillips T W. Protecting Individual Pine Trees From Bark Beetle Attacks Using Inhibitory Behavioral. State Of Georgia. 02/07/89-12/31/90. $4,500 Rich J R. Biological Control Of Nematodes & Fertility Status Of Blue Crab Waste Amended Soil. Dept Of Environmental Regulation. 08/01/89-10/31/90. $31,863 Slansky F. Balance Between The Intake Of Beneficial Nutrients & Deleterious Allelochemicals. National Science Foundation. 01/01/90-12/31/92. $205,999 Smart G C. Mole Cricket Control With Steinernema Nematodes In Florida. Monsanto Company. 07/01/89-09/30/90. $30,000 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 Food and Resource Economics 51 FOOD AND RESOURCE ECONOMICS 2,3 JOSE ALVAREZ Prof, Agricultural Economics Farm Management 1,2,3 CHRIS 0. ANDREW Prof, Trade, Development & Marketing 4 MALIK M. ASHRAF Adj Prof, Farming Systems 1,2,3 EMERSON M. BABB Eminent Scholar, Marketing 4 ROBERT M. BEHR Adj Assoc Prof, Marketing, Florida Department of Citrus 1,2 RICHARD P. BEILOCK Assoc Prof, Marketing Transportation 1,2 WILLIAM G. BOGGESS Prof, Farm Manage- ment, Production Resources 4 THURSTON L. BROOKS JR Adj Instructor, Florida Department of Citrus, citrus Marketing 4 MARK G. BROWN Adj Assoc Prof, Florida Department of Citrus, Citrus Marketing 1,2 ROBERT J. BURKHARDT Assoc Prof, Philosophy of Agriculture 2,3 RODNEY L. CLOUSER Assoc Prof, Public Policy 1,2 DOROTHY A. COMER Assoc Prof, Natural Resource Economics 1,2,3 A. F. CRIBBETT Asst V.P. & Asst Prof 1,2 CARLTON G. DAVIS Disting Serv Prof, Food & Nutrition Economics 2,3 ROBERT L. DEGNER Prof & Dir Market Res. Center 2 BUDDY L. DILLMAN Vis Prof, Resource & Regional Economics 2,3 JOSE K. DOW Prof, International Development & Trade 1,2 ROBERT D. EMERSON Prof, Production Eco- nomics Econometric Labor 3 GARY F. FAIRCHILD Prof, Ag Marketing 2,3 STEPHEN A. FORD Asst Prof, Farm Management Economist 1,2 SUBRATA GHATAK Vis Prof, International Agricultural Development 1,23 CHRISTINA H. GLADWIN Assoc Prof, Small Farm Management 1,2,3 JOHN R. GORDON Assoc Chair and Prof, Rural Economics Development, Agricultural Public Policy 2,3 JOHN J. HAYDU Asst Prof, Marketing Ornamen- tal Horticulture Products 1,2 PETER E. HILDEBRAND Prof, International Development Farming Systems/Small Farms 1,2 CLYDE F. KIKER Prof, Natural Resources Envi- ronmental Economics 1,2 RICHARD L. KILMER Prof, Agricultural Marketing 1,2 MAX R. LANGHAM Prof, Economics Develop- ment & Econometrics 4 JONG-YING LEE Adj Prof, Florida Department of Citrus 1,2,3 LAWRENCE W. LIBBY Chair & Prof, Public Policy & Resource Economics 1,2 BURL F. LONG Prof, Undergraduate Coord Natural Resource Economics 1,2 GARY D. LYNNE Prof, Natural Resources Economics Production Economics 1,2,3 VERNON C. MCKEE Dir & Assoc Prof 1,2 JOSEPH W. MILON Prof, Environmental & Natural Resource Economics 1,2 CHARLES B. MOSS Asst Prof, Agricultural and Agribusiness Finance 1,2,3 WILLIAM D. MULKEY Prof, Res. & Environ- mental Regional Economics Comm. Development 1,2 LEONIDAS POLOPOLUS Prof, Marketing & Policy 2,3 JAMES W. PREVATT Assoc Prof, Extension Economist 1,2 JOHN E. REYNOLDS Prof, Natural Resources 1,2 JAMES L. SEALE, JR. Assoc Prof, International Agricultural Trade, Finance & Policy 1,2 JOHN S. SHONKWILER Prof, Price Analysis 2,3 JAMES R. SIMPSON Prof, Livestock Marketing Development 1,2 THOMAS H. SPREEN Prof, Quantitative Methods 4 RICHARD E. SUTTOR Adj Prof, Farming Systems 1,2 TIMOTHY G. TAYLOR Assoc Prof, Production Economics & Econometrics 3,4 KENNETH R. TEFERTILLER Prof, Agricultural Economics 1,2 ERIC M. THUNBERG Asst Prof, Marine Economics 2,3 JOHN J. VANSICKLE Prof, Agricultural Marketing 1,2 RONALD W. WARD Prof, Marketing and Industrial Organization 1,2 RICHARD N. WELDON Asst Prof, Agribusiness Finance 4 HENRY V. YOUNG, JR. Adj Assoc Prof, Market- ing, Florida Department of Agriculture & Consumer Services 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 52 Food and Resource Economics CRIS Projects: FRE02260 Technology Generation for Enterprises on Small Farms in North Florida P. E. Hildebrand FRE02370 The Economics of Transportation of Florida Agricultural Products R. P. Beilock FRE02487 Trickle Irrigation in Humid Regions J. W. Prevatt FRE02500 Market Performance, Structural Change and Marketing Alternatives for Agricultural and Food Industries R. W. Ward R. L. Kilmer T. H. Spreen E. M. Babb L. Polopolus 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 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 Environ- ment: 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 FRE02732 Effects of Expanded Food and Nutrition Education Program Participation on Household Food Consumption C. G. Davis J. Y. Lee FRE02738 Intra-Caribbean and U.S. Caribbean Agricultural Trade: Implications for Development J. S. Seale C. G. Davis M. R. Langham W. D. Mulkey FRE02796 Quantifying Long Run Agricultural Risks and Evaluating Farmer Responses to Risk W. G. Boggess 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 FRE02804 Enterprise Budgets for Selected Florida Vegetables T. G. Taylor S. A. Ford FRE02802 Specification, Estimation and Evaluation of Economic Models of the Food Sector J. S. Shonkwiler FRE02782 International Trade Research on Commodities Important to the Southern Region J. L. Seale G. F. Fairchild C. B. Moss J. Y. Lee M. G. Brown J. R. Simpson 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Food and Resource Economics 53 Refereed Publications: R-00497 Ansoanuur, J. S. and Langham, M. R. Returns to Research and Development in the Fresh-Winter- Tomato Industry. American Journal of Agricultural Economics R-00745 Beilock, R. P. and Freeman, J. Broadening Participation in Regulated Freight: The Case of Produce Haulers. Transportation Journal R-00015 Beilock, R. P.; Burkhardt, R. J. and Welsh, R. Risk Permits: An Alternative Approach to Trans- portation Safety Regulations. Logistics and Transportation Review R-00107 Fairchild, G. F. Marketing Orders and Market Segmentation: Matching Product Characteristics to Consumer Preferences. Journal of Food Distribution Research 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 R-00103 Gladwin, C. H.; Long, B. F.; Babb, E. M.; Beaulieu, L. J.; Moseley, A.; Mulkey, D. and Zimet, D. J. Rural Entrepreneurship: One Key to Rural Revitalization?. American Journal of Agricultural Economics R-00596 Hildebrand, P. E. Agronomy's Role in Sustain- able Agriculture: Integrated Farming Systems. Journal of Production Agriculture R-00437 Hodges, A. W. and Haydu, J. Major Issues Confronting the Florida Ornamentals Industry. Florida State Horticultural Society R-00811 Kalaitzandonakes, N. and Taylor, T. G. Com- petitive Pressure and Productivity Growth: The Case of the Florida Vegetable Industry. Southern Journal of Agricultural Economics R-00163 Lee, J. Y. and Brown, M. G. Consumer Demand for Food Diversity. Southern Journal of Agricultural Economics 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 R-00522 Lynne, G. D. and Burkhardt, J. The Evolution of Water Institutions in Florida: A Neoinstitutionalist Perspective. Journal of Economic Issues R-00138 Moss, C. B.; Muraro, R. P. and Boggess, W. G. Distortionary Impacts of the 1982 and 1986 U.S. Tax Codes on Capital Investments: A Case Study of Investment in Orange Groves. Southern Journal of Agricultural Economics R-00510 Moss, C. B.; Shonkwiler, J. S. and Ford, S. A. A Risk endogenous Model of Aggregate Agricultural Debt. Agricultural Finance Review R-00104 Moss, C. B.; Shonkwiler, J. S. and Reynolds, J. E. Government Payments to Farmers and Real Agricultural Asset Values in the 1980's. Southern Journal of Agricultural Economics R-00500 Polopolus, L. C. Current Status and Future Directions of Agricultural Economics Programs at 1890 Institutions: Discussion. Southern Journal of Agricultural Economics R-00618 Reynolds, A. Analyzing Fresh Vegetable Con- sumption from Household Survey Data. Southern Journal of Agricultural Econmics R-00321 Schiek, W. and Babb, E. Impact of Reverse Osmosis on Southeast Milk Markets. Southern Journal of Agricultural Economics R-00619 Shonkwiler, J. S. Consumer's Surplus Revisited. American Journal of Agricultural Economics R-00492 Taylor, T. G. and Kalaitzandonakes, N. A Text of Asset Fixity in Southeastern U.S. Agriculture. Southern Journal of Agricultural Economics 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 N-00134 Ford, S. A.; Muraro, R. P. and Fairchild, G. F. Economic Comparison of Southern and Northern Citrus Production in Florida. Florida State Horticultural Society N-00005 Libby, L. W. Public Recreation on Private Land: Research Needs and Considerations. Income Opportunities for the Private Landowner N-00022 Mahan, R. and Beilock, R. P. Unloading Practices for Produce Revisited. Journal of Transportation on Research Forum N-00181 Prevatt, J. W. and Everett, P. H. An Empirical Examination of Tomato Yield Response to Fertil- izer. Soil and Crop Science Society of Florida 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 54 Food and Resource Economics Research Grants: Babb E M. Factors Affecting Interregional Competition In The U.S. Dairy Industry. U S Dept Of Agricul- ture. 09/01/89-12/31/90. $35,000 Beilock R P. Brokerage & Electronic Marketing Of Trucking Services. University Of North Carolina. 08/01/89-06/30/90. $29,496 Beilock R P. 1989-90 Produce Trucking Survey. Dept Of Agricul & Consumer Ser. 03/12/90-09/30/90. $15,000 Boggess W G. An Economic Impact Of The Tropical Bont Tick Pilot Eradication Project On Antigua. U S Dept Of Agriculture. 11/11/88-09/01/90. $48,000 Clouser R L. Agricultural Reserve Study: Palm Beach County. Dames & Moore. 05/23/90-05/22/91. $39,123 Degner R L. An Economic Impact Evaluation Of Agricul- ture & Agribusiness In Dade County Florida. Dade County. 11/01/89-10/31/90. $30,000 Degner R L. 1990 Observational Survey Of Vehicle Occupant Safety Devices In Florida. Dept Of Community Affairs. 12/01/89-09/30/90. $59,570 Gordon J R. Graduate Student Support. Fl Sugar Cane League. 08/01/89-07/31/90. $7,500 Gordon J R. Peace Crops Strategy Contract Agreement. Peace Corps. 10/01/89-09/30/90. $1,000 Milon J W. Preferences & The Economic Consequences Of Safety Programs For Shellfish Products. U S Dept Of Commerce. 04/01/89-03/31/91. $8,600 Mulkey W D. Rural School-community Relationships. S E Ed Improvement Laboratory. 11/27/89-02/01/90. $2,520 Seale J L. Intra-Caribbean & U.S.-Caribbean Agricultural Trade Flows With Implications For Expande. U S Dept Of Agriculture. 07/01/88-06/30/90. $47,534 Spreen T H. Marketing Of Florida Citrus Products. Dept Of Citrus. 07/01/88-06/30/90. $38,000 Spreen T H. Development Of A Model Of Mathematical Analysis Of U.S. Livestock Industry. Auburn University. 07/18/89-09/30/90. $1,500 Taylor T G. Graduate Student Support. Sigma One Corporation. 10/01/89-02/28/90. $3,500 Taylor T G. Agriculture Land Use Projections. Water Management Districts. 01/12/90-08/31/90. $37,056 Vansickle J J. Voice Messaging System For Market News. Dept Of Agricul & Consumer Ser. 08/01/89- 09/30/90. $50,000 Ward R W. Evaluating The Effectiveness Of Beef Promo- tions. Nat Cattlemen's Association. 02/21/90- 12/01/90. $45,000 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Food Science and Human Nutrition 55 FOOD SCIENCE AND HUMAN NUTRITION 1,2 ESAM M. AHMED Prof, Food Psycho Physiology 1,2 LYNN B. BAILEY Prof, Human Nutrition 1,2 MURAT BALABAN Asst Prof, Food Engineering & Processing 1,2,3 ROBERT P. BATES Prof, Food Processing 1,2 PEGGY L. BORUM Assoc Prof, Human Nutrition 1,2 ROSS D. BROWN JR Assoc Prof, Biochemistry 2 BERNADETTE R. CORBETT Assoc in Environ- mental Chemistry 1,2 MICHAEL D. CORBETT Prof, Pesticide Chemistry 1,2 ROBERT J. COUSINS Eminent Scholar, Nutritional Biochemistry 4 ANTONIO D. FIGUEIREDO Adj Prof, Food Chemistry 1,2 JESSE F. GREGORY III Prof, Food Chemistry 2 MIKELINA GRITZALI Asst Res Sci, Bio-chemistry 1,2 LAURA K. GUYER Asst Prof, Dietetics & Nutrition 2 LORI O. LIM Asst Res Sci 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 2 CHARLES W. MEISTER Res Sci, Pesticide Research 1,2 H. ANSON MOYE Prof, Analytical Chemistry 3 OLAF N. NESHEIM Prof, Pesticide Info Coord 1,2 SEAN F. OKEEFE Vis Asst Prof, Food Chemistry 1,2 SUSAN S. PERCIVAL Asst Prof, Nutrition and Immunity 2 RALPH C. ROBBINS Assoc Prof, Human Nutrition 1,2 GARY E. RODRICK Assoc Prof, Food Microbiology 4 UPALI SAMARAJEEWA Adj Assoc Prof, Toxicologist 2,3 RONALD H. SCHMIDT Prof, Dairy Technologist 1,2 RACHEL M. SHIREMAN Prof, Biochemistry 1,2 CHARLES A. SIMS Asst Prof, Enologist 1,2 HARRY S. SITREN Assoc Prof, Human Nutrition 2 NEAL P. THOMPSON Assoc Dean & Prof 2 JOHN P. TOTH Assoc Res Sci, Analytical Chemistry 1,2 CHENG-I WEI Prof, Food Toxicologist 1,2,3 WILLIS B. WHEELER Chair & Prof, Toxicology CRIS Projects: FOS02151 Enzyme Treatment for Conversion of Polysac- charides 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 FOS02499 Mechanisms of the Transfer of Sterols and Glycerides into Cells R. B. Shireman 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 FOS02673 Product Development for Increased Utiliza- tion of the Sweet Potato E. M. Ahmed M. O. Balaban FOS02687 Quality and Safety of Seafood Products M. R. Marshall C. I. Wei 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 56 Food Science and Human Nutrition FOS02698 Nutritional Properties of Pyridoxine- Beta-Glucoside J. F. Gregory J. P. Toth L. B. Bailey FOS02710 Reduction of Aflatoxin Content in Peanut Seeds by Microwave Roasting E. M. Ahmed C. I. Wei FOS02724 Southern Region Program to Clear Pest Control Agents for Minor Uses W. B. Wheeler C. W. Meister L. O. Lim 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 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 Refereed Publications: 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 Identifica- tion using Enzyme-Linked Immunosorbent Assay. Agricultural and Food Chemistry R-00409 Balaban, M. 0. and Chen, C. S. Supercritical Fluid Extraction. Encyclopedia of Food Science and Technology R-00069 Bhandari, S. D.; Gregory, J. F.; Renuart, D. R. and Merritt, A. M. Properties of Pteroylpoly- glutamate Hydrolase in Pancreatic Juice of the Pig. Journal of Nutrition 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 R-00073 Corbett, M. D.; Corbett, B. R.; Quintana, S. J.; Hannothiaux, M. H.; Wei, C. I.; Owusu-Yaw, J. D. and Lim, L. O. Microsomal N-Hydroxylation of a Glycolamide, and the Mutagenicity of the Glycolic and Acetic Acid Amide and Hydroxamic Acid Derivatives of 2-Aminofluorene. Chemical Research in Toxicology R-00791 Corbett, M. D.; Hannothiaux, M. H.; Corbett, B. R. and Quintana, S. J. Relative Abilities of the HL-60 Cell Line and Human Granulocytes to Effect the Bioactivation of Arylamines and Related Xenobiotics. Chemico-Biological Interactions R-00089 Gregory, J. F. Improved Synthesis of [31, 51- 2H2] Folic Acid: Extent and Specifity of Deuterium Labeling. Journal of Agricultural and Food Chemistry R-00071 Gregory, J. F. and Leatham, K. Vitamin B6 Activity of 6-Hydroxpyridoxine. Journal of Food Science 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 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'-BOD-Glucoside Determined in Humans by Stable-Isotopic Methods. Journal of Nutrition 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 Intes- tines. Journal of Nutritional Science and Vitaminology 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 R-00675 Bates, R. P.; Graham, H. D.; Matthews, R. F. and Clos, L. R. Breadfruit Chips: Preparation, Stability and Acceptability. Journal of Food Science 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction Food Science and Human Nutrition 57 R-00043 Lim, L. 0.; Schrer, S. J.; Shuler, K. D. and Toth, J. P. Photodegradation of Cyromazine and Melamine Under Environmental Conditions. Journal of Agricultural and Food Chemistry R-00312 Lindsay, J. A.; Barton, L. E.; Leinart, A. S. and Pankratz, H. S. The Effect of Sporulation Tempera- ture on Sporal Characteristics of Bacillus Subtilis A. Current Microbiology R-00742 Marshall, D. L. and Schmidt, R. H. Mechanism for Stimulated Growth of Listeria monocytogenes by Pseudomonas Secies in Milk. Canadian Journal of Microbiology R-00309 McGowan, C. and Wiley, V. A. Quantitation of L-Canavanine in Alfalfa Sprouts Using Reversed Phase High Performance Liquid Chromatography. Journal of Food Composition and Analysis R-00632 Moore, L. F. and Sitren, H. S. Optimal Arginine Level for Total Parenteral Nutrition of the Rat. Journal of Nutrition 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 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 R-00080 Patel, B. M.; Moye, H. A. and Weinberger, R. UV Photolysis and OPA-MERC Derivatization of Pharmaceuticals for Enhanced Fluorescence Detection in HPLC. Analytical Letters 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 R-00691 Rolle, R. S.; Marshall, M. R.; Wei, C. I. and Chen, J. S. Phenoloxidase Forms of the Florida Spiny Lobster: Immunological and Spectropolari- metric Characterization. Comparative Biochemistry and Physiology R-00153 Samarajeewa, U.; Sen, A. C.; Cohen, M. D. and Wei, C. I. Detoxification of Aflatoxins in Foods by Physical and Chemical Methods. Journal of Food Protection R-00487 Samarajeewa, U.; Sen, A. C.; Fernando, S. Y.; Ahmed, E. M. and Wei, C. I. Inactivation of Aflatoxin B1 in Corn Meal, Copra Meal and Peanuts by Chlorine Gas Treatment. Food and Chemical Toxicology 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 R-00200 Shireman, R. B.; Graves, J. and Pollack, M. Variation in Serum Lipid Parameters in a Normal Elderly Population. Clinical Chemistry 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 R-00776 Sims, C. A.; Bates, R. P. and Mortensen, J. A. Effects of Must Polyphenoloxidase Activity and Timing of Sulfite Addition on the Color and Quality of White Wines. American Journal of Enology and Viticulture R-00661 Sims, C. A.; Johnson, R. P. and Bates, R. P. Effects of Mechanical Trimming on the Yield and Quality of Muscadine Grapes. American Journal of Enology and Viticulture 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 R-00413 Wei, C. I. Food Toxicology. Encyclopedia of Food Science and Technology Non-Refereed Publications: N-00146 Matthews, R. F.; Lindsay, J. A.; West, P. F. and Leinart, A. Refrigerated Vacuum Packaging of Carambola Slices. Florida State Horticultural Society N-00056 Sims, C. A. and Mortensen, J. A. Evaluation of Wine Potential from Breeding Lines and Cultivars in Florida. Florida State Horticultural Society Research Grants: Borum P R. Comparison Of Novalipid & Intralipid In Tpn Of Neonatal Piglets. Kabivitrum Ab. 06/21/89- 06120/90. $45,000 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 58 Food Science and Human Nutrition Borum P R. Carnitine Studies. Miscellaneous Donors. 05/16/86-05/15/94. $6,761 Borum P R. The Role Of Nutrition In The Development Of The Immune System In Neonatal Piglets. Clintec Nutrition Company. 08/09/89-08/08/90. $40,000 Borum P R. Procysteine Piglet Program. Clintec Nutri- tion Company. 03/14/90-03/13/91. $80,000 Cousins R J. Zinc & The Synthesis Of Zinc Binding Proteins. National Institutes Of Health. 07/01/87- 06/30/92. $118,435 Gregory J F. The Nutritional Properties Of Pyridoxine-beta-glucoside. National Institutes Of Health. 08/01/88-07/31/91. $160,310 Lim L. Bentazon Analysis In Perennial Peanuts. Basf Wyandotte Corporation. 03/30/90-03/29/91. $6,000 Lim L 0. Analysis Of Chlorothalonil In Tropical Fruits. Fermenta Asc. 07/21/89-07/20/90. $3,150 Lim L O. Pesticide Research Data For Food Use Clearances. Rutgers State University. 03/21/90- 12/31/90. $2,500 Lindsay J A. Activation Of Bacterial Toxins In Sudden Infant Death. National Institutes Of Health. 08/01/89-07/31/92. $71,308 Matthews R F. Aseptic Citrus Juice Processing. Tetra Pak Inc. 08/31/89-09/01/90. $8,000 Matthews R F. Canning Tomatoes For Residue Analysis. Valent U S A Corporation. 11/01/89-12/15/89. $5,000 Meister C W. Analysis Of Benomyl In Artichokes. Western Farm Service. 06/01/89-05/30/90. $2,400 Meister C W. Analysis Of Pesticides In Artichokes. Artichoke Research Association. 02/05/90- 02/04/91. $2,250 Moye H A. Extension Of The PAMI Carbamate Method. Millipore Corporation. 01/01/90-12/31/90. $11,600 Rodrick G E. Uptake Elimination Retention & Depuration Of Virulent & Avirulent Forms Of Vibrio. U S Dept Of Commerce. 04/01/89 -03/31/91. $22,300 Sims C A. Processing Of Tomatoes For Residue Analysis. ICI Americas. 10/28/89-12/01/89. $9,000 Sirren H S. Xa-043 Three-week Intravenous Dose Tolerance Study In Female Sprague-Dawley Rats Subjected. Dupont Company. 04/24/89-04/23/90. $31,000 Wei C. Detoxification Of Aflatoxin On Agricultural Products By Chlorine Gas Treatment. Conserva- tion Food & Hlth Found. 11/29/89-12/15/90. $8,800 Wei C. Identification Of Fish & Fishery Products By Monoclonal Antibody Techniques. U S Dept Of Commerce. 04/01/89-03/31/91. $39,300 Wheeler W B. Southern Region Program To Clear Pest Control Agents For Minor Uses. U S Dept Of Agriculture. 02/01/88-09/30/91. $367,460 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 4-H and Other Youth Programs 59 4-H AND OTHER YOUTH PROGRAMS 2,3 LIONEL J. BEAULIEU Prof, Extension Rural Sociologist 2,3 MYRLA J. CANTRELL Asst Prof, Extension 4-H Youth Specialist CRIS Projects: 4-H02474 Socioeconomic Dimensions of Technological Change, Natural Resource Use and Agriculture Structure L. J. Beaulieu 4-H02795 The Changing Structure of Labor Markets in Nonmetropolitan Areas L. J. Beaulieu M. J. Cantrell 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 60 Fruit Crops FRUIT CROPS 4 HASSAN M. ALI-DINAR Adj Assoc Prof, Physiology 4 LEON H. ALLEN JR Adj Prof, Microclimatology and Environmental Physiology 4 HERBERT C. BARRETT Adj Prof, Genetics and Plant Breeding Orlando 4 MICHAEL G. BAUSHER Adj Asst Prof, Physiol- ogy, Orlando 1,2 ROBERT H. BIGGS Prof, Biochemistry 4 NORMAN F. CHILDERS Adj Prof, Deciduous Fruits 1,2 KENNETH C. CLINE Assoc Prof, Biochemistry & Molecular Biology 2,3 JONATHAN H. CRANE Asst Prof, Tropical Fruits, Homestead 1,2 REBECCA L. DARNELL Asst Prof, Deciduous Fruits 1,2 FREDERICK S. DAVIES Prof, Environmental Physiology 1,3 JAMES J. FERGUSON Assoc Prof, Citrus Specialist 2 JOHN F. GERBER Prof, Fruit Crops 4 CHARLES J. HEARN Adj Prof, Genetics and Plant Breeding, Orlando 4 DONALD J. HUTCHISON Adj Prof, Genetics and Plant Breeding, Orlando 1,2,3 LARRY K. JACKSON Chair and Prof, Citrus Specialist 4 ROBERT J. KNIGHT JR Adj Prof, Horticulture, Miami 1,2 KAREN E. KOCH Assoc Prof, Plant Physiology 4 ALDO C. LEOPOLD Adj Prof, Plant Physiology 1,2 PAUL M. LYRENE Prof, Decid. Fruit Breeding and Genetics 4 SIMON E. MALO Adj Prof, Horticulture Honduras 1,23 J D. MARTSOLF JR Prof, Climatology 4 ROY E. MCDONALD Adj Prof, Post Harvest, Orlando 1,2 GLORIA A. MOORE Assoc Prof, Fruit Breeding & Genetics 4 JORGE RODRIGUEZ-ALCAZA Adj Assoc Prof, Fruit Crops 1,2 WAYNE B. SHERMAN Prof, Deciduous Fruit Breeding 4 THOMAS R. SINCLAIR Adj Prof, Environ- mental Physiology 2,3 DAVID P. TUCKER Prof, Extension Horticulture, Area Citrus Specialist 2,3 WILFRED F. WARDOWSKI II Prof, Post-Harvest Handling 2,3 JEFFREY G. WILLIAMSON Asst Prof, Citrus Specialist 4 HEINZ K. WUTSCHER Adj Prof, Horticulture, Orlando 4 GEORGE YELENOSKY Adj Prof, Horticulture, Orlando CRIS Projects: FRC02521 Genetic Transformation of Citrus to Facilitate Hybrid Production G. A. Moore K. C. Cline FRC02529 Environmental and Biological Stresses of Rootstock in Peach Tree Longevity W. B. Sherman P. M. Lyrene P. C. Anderson 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 FRC02741 Low-Chill Prunus Cultivar Improvement for the Subtropics and Tropical Highlands W. B. Sherman P. M. Lyrene G. A. Moore FRC02778 Freeze Damage and Protection of Fruit and Nut Crops L. R. Parsons FRC02783 Chilling and Photoperiod Effects on Carbohy- drate Allocation and Crop Yield in Blueberry R. L. Damell 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Fruit Crops 61 FRC02816 Deciduous Fruit and Nut Crops Cultivar Development W. B. Sherman P. M. Lyrene G. A. Moore 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 Popula- tions. American Society for Horticultural Science R-00720 Crane, J. H. and Baranowski, R. M. Planning Grower Funded Tropical Fruits Research in Florida. Interamerican Society for Tropical Horticulture R-00007 Darnell, R. L. and Davies, F. S. Chilling Accu- mulation, Budbreak, and Fruit Set of Young Rabbiteye Blueberry. HortScience R-00029 Damell, R. L. and Lyrene, P. M. Cross- Incompatibility of Two Related Rabbiteye Blue- berry Cultivars. HortScience R-00085 Dweikat, I. M. and Lyrene, P. M. Twin Seedlings and Haploids in Blueberry Vaccinium Spp.. Journal of Heredity R-00663 Fernandez, R. T. and Martsolf, J. D. Growth, Development and as Exchange of Young Citrus Trees Growing Under and Orchard Cover. Scientia Horticulturae R-00285 Kinnaird, M. F. Pregnancy, Gestation and Parturition in Free-Ranging Tana River Crested Magabeys (Cercocebus galeritus galeritus). Primates R-00722 Koch, K. E. and Avigne, W. T. Post-Phloem, Non-Vascular Transfer in Citrus: Kinetics, Metabo- lism, and Sugar Gradients. Plant Physiology R-00238 Lyrene, P. M. The Florida Climate as it Relates to Blueberry Production. Florida State Horticultural Society R-00284 Robinson, J. G. and O'Brien, T. G. Adjustment in Birth Sex Ratio in Wedge-Capped Capuchin Monkeys. Wildlife and Range Sciences R-00057 Topp, B. and Sherman, W. B. Sources of Bacterial Spot Resistance in Japanese-Type Plum Cultivars. Fruit Varieties Journal R-00051 White, T. L. and Hodge, G. R. Predicting Breeding Values with Applications in Forest Tree Improvement. Book Title R-00537 Willis, L.; Davies, F. S. and Graetz, D. A. Fertigation and Growth of Young 'Hamlin' Orange Trees in Florida. HortScience R-00794 Yen, C. R. and Koch, K. E. Developmental Changes in Translocation and Localization of 14C- Assimilates in Grapefruit: Photosynthesis and Dark CO2 Fixation by Leaves and Fruit. Journal of the American Society for Horticultural Science Non-Refereed Publications: N-00050 Marler, T. E. and Davies, F. S. Microsprinkler Irrigation Scheduling and Pattern Effects on Growth of Young 'Hamlin' Orange Trees. Florida State Horticultural Society N-00127 Martsolf, J. D. Heated Irrigation Cold Protec- tion. Florida State Horticultural Society N-00072 Miller, E. P. Performance of Non-Astringent Persimmons (Diospyros kaki L.) in Florida. Florida State Horticultural Society N-00147 Moore, G. A.; DeWald, M. G. and Evans, M. H. Micropropagation of Pineapple (Ananas comosus L.). Biotechnology in Agriculture and Forestry N-00073 Norden, D. E. Comparison of Pine Bark Mulch and Polypropylene Fabric Ground Cover in Blueberries. Florida State Horticultural Society N-00044 Topp, B. L. and Sherman, W. B. Location Influence on Fruit Traits of Low-Chill Peaches in Australia. Florida State Horticultural Society N-00137 Williamson, J. G. and Castle, W. S. A Survey of Florida Citrus Nurseries. Florida State Horticultural Society Research Grants: Cline K C. Biogenesis Of Chloroplasts: Import & Assem- bly Of Nuclear Encoded Chloroplast Proteins. National Science Foundation. 08/01/88-07/31/91. $68,600 Davies F S. Microsprinkler Irrigation Of Grapefruit In The Flatwoods Using Reclaimed Water. Water Man- agement Districts. 10/20/89-09/30/92. $100,938 Koch K E. Fruit Sugars & Bird Predation: A Feasibility Study For Altering Blueberry Sugar. U S Dept Of Agriculture. 07/24/89-09/30/89. $4,961 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 62 Fruit Crops Koch K E. Physiological Role Of Sugarmodulated Gene Expression In Higher Plants. National Science Foundation. 06/01/89-05/31/92. $68,600 Martsolf J D. Nasa and UF Div Of Sponsored Research. 05/01/90-01/31/91. $3,418 Moore G A. Genetic Transformation of Citrus to Facilitate Hybrid Production. US Dept of Agriculture. 09/01/88-08/01/90. $220,000 4 Other UF or Cooperating Agency 1 Resident Instruction 2 Research 3 Extension Home Economics 63 HOME ECONOMICS 3 LINDA B. BOBROFF Assoc Prof, Foods & Nutrition 3 MARY V. PEART Assoc Prof, Housing 2,3 SUZANNA D. SMITH Asst Prof, Human Development 3 NAYDA I. TORRES Assoc Prof, Family & Consumer Economics 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 HEC02732 Effects of Expanded Food and Nutrition Education Program Participation on Household Food Consumption 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 R-00159 Peart, V. Southern Mildew Problems: Weather and Psychrometrics. Improving Building Energy Efficiency in Hot and Humid Climates R-00507 Peart, V. and Cook, G. Sick Buildings: Moisture and Mildew, Correlation and Prevention. Annual Meeting Associated Schools of Construction R-00506 Peart, V. and Johannsen, R. Critical HVAC Concern: The Dehumidification Gap. 1990 International Appliance Technical Conference R-00194 Smith, M. F. and Bobroff, L. B. Study of the Effectiveness of a Health Risk Reduction Program. Journal of Nutrition Education R-00493 Smith, S.; Swisher, M. E. and Shehan, C. Women in Agribusiness: Using Research to Identify Extension Audiences. Journal of Extension Popular Articles: T-00024 Peart, M. V. and Baillie, S. Women and DIY: A Neglected Market. DIY Retailing 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 64 Microbiology and Cell Science MICROBIOLOGY AND CELL SCIENCE 1,2 PHILLIP M. ACHEY Prof, Radiation Biology 1,2 HENRY C. ALDRICH Prof, Biological Ultra-structure 4 SYLVIA E. COLEMAN Adj Asst Prof, Bacteriology 1,2 FRANCIS C. DAVIS JR Assoc Prof, Biochemistry of Development 1,2 DENNIS E. DUGGAN Assoc Prof, Microbial Genetics 2 GREGORY W. ERDOS Asst Res Sci, EM Specialist 1,2 SAMUEL R. FARRAH Assoc Prof, Environ- mental Microbiology 2 RANDY S. FISCHER Asst Res Sci, Enzymological Research 1,2 JOHN E. GANDER Prof, Biochemistry of Fungal Glycoprotein 1,2 WILLIAM B. GURLEY Assoc Prof, Plant Molecu- lar Biology 1,2 EDWARD M. HOFFMANN Chair & Prof, Immunology & Complement 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 Chair & 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, Microbial Ecology 1,2 STEVEN G. ZAM III Assoc Prof, Parasitology and Protozoology CRIS Projects: MCS02060 Amanitin-protein Conjugates as Inhibitors of Specific Cell Types J. F. Preston E. M. Hoffmann MCS02068 Cell Cycle Regulation of Chlorella Ribulose- 1, 5-bisphosphate Carboxylase Levels R. R. Schmidt 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 MCS02683 Sequences of 2 Ammonia-induced Glutamate Dehydrogenases, their Genes and mRNAs 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 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Microbiology and Cell Science 65 MCS02786 Genetic Engineering of Alcohol Production in E. Coli L. O. Ingram MCS02792 Enhancing Beneficial Microorganisms in the Rhizosphere J. R. Milam S. L. Albrecht MCS02789 Degradation of Structural Polymers: Depoly- merization of PlantCell Wall Polyuronides J. F. Preston MCS02770 Incrasing Microbial Production of Alcohol by Genetic Engineering L. O. Ingram MCS02769 Removal and Recovery of Human Enteric Viruses from Water using Modified Solids S. R. Farrah MCS02852 Gene-enzyme Relationships in Somatic Cells and their Organismal Derivatives R. A. Jenson MCS02879 Nuclear Gene Encoding Two NH3-Inducible Chloroplastic Isoenzymes R. R. Schmidt MCS03013 Synthetic Peptide Technology for Structure/ Function Studies of Hormones and Cytokines H. M. Johnson 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 Phyloge- netic Positioning of Enteric Bacteria. Journal of Bacteriology R-00176 Bandyopadhyay, R. S.; Bruce, W. B. and Gurley, W. B. Regulatory Elements Within the Agropine Synthase Promoter of T-DNA. Journal of Biological Chemistry R-00150 Cock, J. M. and Schmidt, R. R. A Glutamate Dehydrogenase Sequence. Nucleic Acids Research 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 R-00479 Doong, R. L.; Ahmad, S. and Jensen, R. A. Higher Plants Express 3-Deoxy-DO-Manno-Octulo Sonate 8-Phosphate. National Academy of Science R-00743 Eddy, C. K.; Keshav, K. F.; An, H.; Utt, E. A.; Mejia, J. P. and Ingram, L. O. Partial Degradation of the Z. Mobilis gap Operon Message as a Mecha- nism for Differential Synthesis of Glyceraldehyde- 3-Phosphate and 3-Phosphogycerate Kinase: Potential Involvement of a Novel..... Journal of Bacteriology R-00755 Francis, K.; Patel, P.; Wendt, J. C. and Shanmugam, K. T. Purification and Characteriza- tion of Two Forms of Hydrogenase Isoenzyme 1 from Escherichia coli. Journal of Bacteriology 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 R-00052 Hoffmann, E. M. and Eisenschenk, F. C. Purifi- cation of the Ninth Component of the Bovine Complement Cascade. Molecular Immunology 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 R-00349 Ingram, L. O.; Ohta, K. and Beall, D. S. Genetic Modification of Escherichia coli for Ethanol Production. Institute of Gas Technology 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 R-00398 Jensen, R. A. and Ahmad, S. Nested Gene Fusions are Markers of a Hierarchial Series of Phylogenetic Branchpoints. Trends in Ecology and Evolution R-00684 Keller, A. E. and Zam, S. G. The Toxicity of Selected Metals to the Freshwater Mussel, Anodonta imbecilis. Environmental Toxicology and Chemistry 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 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 2 Research 3 Extension 4 Other UF or Cooperating Agency --- I Resident Instruction 66 Microbiology and Cell Science R-00232 Mah, R. A.; Xun, L. Y.; Boone, D. R.; Ahring, B.; Smith, P. H. and Wilkie, A. C. Methanogenesis from Propionate in Sludge and Enrichment Systems. FEMS Symposium R-00442 Maupin, J. A. and Shanmugam, K. T. Genetic Regulation of Formate Hydrogenlyase of Escherichia coli: Role of fhlA Gene Product as a Transcriptional Activator for a new Regulatory Gene, fhlB. Journal of Bacteriology R-00164 Mejia, J. P.; Eddy, C. K.; Conway, T. and Ingram, L. O. Construction of Zymomonas mobilis Recom- binants Containing Multiple Copies of the pdc Gene (pyruvate decarboxylase): Plasmid Stability, Growth, and Evidence for Trans-active Factors Controlling Expression. Journal of Bacteriology 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 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 R-00065 Preston, III, J. F. and Rice, J. D. Kinetic Analysis of Pectate Lyases by High-Performance Liquid. Analytical Biochemistry Popular Articles: T-00062 Achey, P. M. Radiation Biology. Encyclopedia of Science Research Grants: Aldrich H C. Acquisition Of A Transmission Electron Microscope. National Science Foundation. 01/01/90-12/31/91. $148,000 Farrah S R. Virus Monitoring At The Kanapaha Waste- water Plant. City Of Gainesville. 12/01/89-12/01/ 90. $24,240 Gander J E. Nematode Parasites Research Project In IFAS. Uf Div Of Sponsored Research. 01/17/89- 11/01/89. $2,285 Gurley W B. Transcriptional Regulation Of Plant Heat Shock Genes. National Institutes Of Health. 08/28/88-07/31/93. $202,278 Gurley W B. Cis & Trans Components Of T-DNA Promoter Function. National Institutes Of Health. 04/01/88-03/31/93. $99,035 Hoffmann E M. Modulation Of The Bovine Immune Response To Brucella AbortusSubunit Vaccine. State University System. 01/24/90-01/23/91. $16,250 Hoffmann E M. A Novel Hypertensive Peptide. UF Research Foundation, Inc. 12/28/89-12/28/91. $8,000 Hoffmann E M. Enzyme-targeted Antimicrobials For Plant Disease Control. UF Research Foundation, Inc. 03/01/90-03/01/92. $990 Ingram L O. Support To Dr. Ohta As A Visiting Professor From Japan. UF Div Of Sponsored Research. 01/01/89-12/31/90. $15,000 Jensen R A. Biosynthesis & Regulation Of Aromatics In Pseudomonas. National Institutes Of Health. 07/01/86-06/30/93. $121,930 Jensen R A. Biochemical-pathway Diversity In Archaebacteria. U S Navy. 02/01/88-06/30/90. $50,000 Johnson H M. Regulatory & Antitumor Effects Of Gamma Interferon. National Institutes Of Health. 07/01/88-05/31/93. $174,766 Johnson H M. Structure/function Studies Of Pregnancy Recognition Hormone. National Institutes Of Health. 09/30/89-08/31/94. $165,138 Johnson H M. Staphylococcal Enterotoxins. National Institutes Of Health. 03/01/88-02/28/93. $154,859 Johnson H M. Regulation Of Production Of Gamma Interferon In Tumor Defense. National Institutes Of Health. 12/01/86-11/30/90. $30,963 Schmidt R R. Nuclear Gene Encoding Two NH3 induc- ible Chloroplastic Isoenzymes. U S Dept Of Agriculture. 09/01/89-08/31/91. $90,000 Wilkie A C. Biodegradation Of Town Gas Tar From The PSE&G Harriston Site. Public Service Elec & Gas Co. 06/13/89-06/12/90. $45,000 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Environmental Horticulture 67 ENVIRONMENTAL HORTICULTURE 1,2 JAMES E. BARRETT Prof, Woody Ornamental & Flor. 1,2 WILLIAM J. CARPENTER JR Prof, Woody Ornamentals 2,3 JOHN L. CISAR Asst Prof, Turfgrass, Ft. Lauderdale 1,2 BIJAN DEHGAN Prof, Woody Ornamentals 1,2 ALBERT E. DUDECK Prof, Turf 2 EVERETT R. EMINO Asst Dean & Prof 2,3 EDWARD F. GILMAN Asst Prof, Plant Environment 1,2 CHARLES L. GUY Assoc Prof, Plant Physiology & Biochemistry 1,2 MICHAEL E. KANE Asst Prof, Tissue Culture 4 FRANCIS J. MAROUSKY Adj Prof, Flor. Postharvest 2,3 LAMBERT B. MCCARTY Asst Prof, Turfgrass Production and Maintenance 1,2,3 DENNIS B. MCCONNELL Prof, Foliage 1,3 ALAN W. MEEROW Asst Prof, Foliage and Nursery Crops 4 CHARLES L. MURDOCK Adj Prof, Turfgrass 2,3 TERRILL A. NELL Prof, Flor. 1,2,3 2,3 THOMAS J. SHEEHAN Prof & Chair, Flor. THOMAS YEAGER Assoc Prof, Woody Ornamental 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. L. Ingram D. B. McConnell T. J. Sheehan ORH02695 Technical and Economical Efficiencies of Producing and Marketing Landscape Plants D. B. McConnell ORH02803 Low Temperature Regulated Genes Associ- ated with Freezing Tolerance in Spinach C. L. Guy ORH02778 Freeze Damage and Protection of Fruit and Nut Crops 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 R-00455 Black, L. A.; Nell, T. A. and Barrett, J. E. Effect of Stage of Development and Transport Tempera- ture and Duration on the Postharvest Performance of 'Gloria' Azalea. American Society for Horticul- tural Science R-00239 Black, L. A.; Nell, T. A. and Barrett, J. E. The Effect of Forcing Irradiance, Temperature and Fertilization on Development and Postharvest Performance of 'Gloria' Azalea. American Society for Horticultural Science R-00478 Carpenter, W. J. Pansy Seed Germination Improves at High Temperatures by Priming. Scientia Horticulturae R-00642 Dehgan, B. and Schutzman, B. Contributions Toward a Monograph of Neotropical Jatropha:Phenetic and Phylogenetic Analysis. Annals of the Missouri Botanical Garden R-00301 Dudeck, A. E. and McCarty, L. B. Comparison of Overseeded Grasses for Putting Greens. Florida State Horticultural Society R-00045 Foster, W. J.; Ingram, D. L. and Nell, T. A. A System to Measure Shoot and Root Carbon Exchange Rates at Controlled Root-Zone Tempera- ture. American Society of Horticultural Science R-00408 Gilman, E. F. Tree Root Growth and Develop- ment. I. Depth, Spread and Periodicity. Journal of Environmental Horticulture R-00406 Gilman, E. F. Tree Root Growth and Develop- ment. II. Response to Culture, Management and Planting. Journal of Environmental Horticulture R-00189 Gilman, E. F.; Yeager, T. H. and Weigle, D. Nitrogen Leaching from Cypress Wood Chips. HortScience R-00091 Guy, C. Freezing Stress Tolerance: Role of Protein Metabolism in Cold Acclimation. Annual Review of Plant Physiology and Molecular Biology 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 68 Environmental Horticulture R-00121 Harris, J. R. and Gilman, E. F. Effect of Produc- tion Method on Post-Transplant Growth of Leyland Cypress. Southern Nurseryman R-00651 Jenks, M.; Kane, M. E.; Marousky, F. J.; McConnell, D. B. and Sheehan, T. J. In Vitro Estabishment and Epiphyllous Plantlet Regenera- tion of Nymphaea 'Daubeniana'. HortScience R-00669 Kane, M. E. and Gilman, E. F. In Vitro Propaga- tion and Bioassay Systems for Evaluation Growth Regulator Effects on Aquatic Plants. Journal of Aquatic Plant Managment R-00573 Maekawa, S. and Carpenter, W. J. Verbena Seed Morphology Promotes Irregular Germination. HortScience R-00581 Martin, C. A. and Ingram, D. L. Computer Modeling of Temperature Fluctuation in a Con- tainer Medium II. Factor Influencing the Magni- tude, Location, and Duration of Supraoptimal Root-Zone Temperatures. American Society for Horticultual Science R-00580 Martin, C. A. and Ingram, D. L. Computer Modeling of Temperature Fluctuations in a Container Medium I. Model Development and Validation. American Society for Horticultural Science R-00582 Martin, C. A. and Ingram, D. L. Evaluation of Thermal Properties in Container Media and Effect of Irrigation on Temperature Dynamic in Con- tainer Media. Journal of Environmental Horticulture R-00678 Martin, C. A. and Ingram, D. L. Root Growth of Southern Magnolia Following Exposure to Rootzone Temperature Treatments. HortScience R-00640 Martin, C. A.; Ingram, D. L. and Jenks, M. A. Acclimatization of Southern Magnolia to Supraoptimal Root-Zone Temperatures. Tree Physiology R-00586 Martin, C. A.; Ingram, D. L. and Nell, T. A. Growth and Photosynthesis of Magnolia grandiflora Hort. 'St. Mary' in Response to Container Volume and Shifting Treatments. American Society for Horticultural Science 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 R-00763 Ramcharan, C.; Ingram, D. L.; Nell, T. A. and Barrett, J. E. Interactive Effects of Root-Zone Temperature and Irrigation Volume on Banana Vegetative Growth in Two Environments. Fruits 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 R-00204 Roude, N.; Nell, T. A. and Barrett, J. E. Effects of N, K and NH4:NO3 Ratio on Growth and Longevity of Potted Chrysanthemums. HortScience R-00315 Ruter, J. M. and Ingram, D. L. Influence of Supraoptimal Root-Zone Temperatures on Photo- synthetic Mechanisms in 'Rotundifolia' Holly. American Society for Horticultural Science R-00612 Ruter, J. M. and Ingram, D. L. Seed Germination of Sophora Secundiflora: Effect of Scarification Treatments. HortScience 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 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 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 Non-Refereed Publications: N-00109 Black, R. J. and Meerow, A. W. Landscaping to Conserve Energy. Florida State Horticultural Society N-00219 Colon, W.; Ingram, D. L. and Kane, M. E. Irradiance Effects on Acclimatization of Micropropagated Aronia arbutifolia. Caribbean Food Crops Society N-00117 Dehgan, B.; Almira F.; Gooch, M. and Sheehan, T. J. Vegetative Propagation of Florida Native Plants: IV. Quercus spp. (Oaks). Florida State Horticultural Society N-00116 Dehgan, B.; Gooch, M.; Almira, F. and Kane, M. E. Vegetative Propagation of Florida Native Plants: III. Shrubs. Florida State Horticultural Society 2 Research 3 Extension 4 Other UF or Cooperating Agency - - I Resident Instruction Environmental Horticulture 69 N-00123 Dudeck, A. E. Sound Mowing and Renovation Practices. Florida Turfgrass Association N-00043 Gilman, E. F. Effects of Injected and Surface Fertility on Hibiscus Growth. Florida State Horticultural Society N-00036 Gilman, E. F. Root Growth into Landscape Soil One Year after Planting. Southern Nurseryman's Proceedings N-00079 Ingram, D. L.; Martin, C. A. and Ruter, J. M. Heat Stress of Container-Grown Plants. International Plant Propagators Society N-00007 Kane, M. E. Micropropagation of Freshwater Plants. Restoration and Management Notes N-00009 Kane, M. E. Micropropagation of Native Woody Plants. Restoration and Management Notes N-00120 Kane, M. E.; Jenks, M. and Sheehan, T. J. In Vitro Propagation Studies in the Numphaeaceae: American Lotus. Water Garden Journal N-00077 Kane, M. E.; Sheehan, T. J.; Dehgan, B. and Philman, N. L. In Vitro Propagation of Florida Native Plants: Styrax americana and Persea palustris. Florida State Horticultural Society N-00023 Knox, G. W.; Neal, C. A. and Yadav, U. Effect of Micro Irrigation and Frequency on Growth of Crape Myrtle and Laurel Oak Produced in Field- Grown Containers. Southern Nurserymen's Association Research Conference N-00214 Martin, C. A. and Ingram, D. L. Effects of Container Volume and Shifting Strategies on Growth of Southern Magnolia. Proceedings of Southern Nurserymen's Association Conference N-00081 Martin, C. A. and Ingram, D. L. Evaluation of Magnolia Grandiflora 'Glen St. Mary' for use in Interior Environments. Florida State Horticultural Society N-00180 Martin, C. A. and Ingram, D. L. Evaluation of Magnolia grandifloria 'Glen St. Mary' for Use in Interior Environments. Florida State Horticultural Society N-00215 Martin, C. A. and Ingram, D. L. Growth of Southern Magnolia after Root-Zone Temperature Treatments. Southern Nurserymen's Association Proceedings N-00080 Martin, C. A. and Ingram, D. L. Rooting Response of'Glen St. Mary' Magnolia as a Func- tion of Cutting Harvest Date and Exogenously- Applied Hormones. International Society of Plant Propagators Society N-00024 Martin, C. A. and Ingram, D. L. Simulation of Temperature in a Container Media. Southern Nurserymen's Association Research Conference N-00106 McConnell, D. B.; Henley, R. W. and Kelly, C. B. Commercial Foliage Plants: Twenty Years of Change. Florida State Horicultural Society N-00025 Ruter, J. M. and Ingram, D. L. Supraoptimal Root-Zone Temperatures Influence Photosynthate Partitioning in 'Rotundifolia' Holly. Southern Nurserymen's Association Research Conference N-00118 Wright, G. J. and Smith, I. E. Nitrogen Nutri- tion of Cabbage Seedlings Grown in a Pine Bark Medium. Florida State Horticultural Society N-00021 Yeager, T. H.; Ingram, D. L. and Larsen, C. A. Nitrate Nitrogen and Potassium Release from Surface-Applied and Growth Medium-Incorporated Osmocote and Escote. Southern Nurserymen's Proceedings N-00107 Yeager, T. H.; Ingram, D. L. and Larsen, C. A. Response of Ligustrum and Azalea to Surface and Growth Medium-Incorporated Fertilizer Applica- tions. Florida State Horticultural Society N-00221 Yeager, T. H.; Kainer, K. A. and Gallaher, R. N. Tissue Elemental Status of Landscape Laurel and Shumard Oaks. Southern Nurserymen's Proceedings N-00130 Yeager, T. H.; Knox, G. W.; Simone, G. W.; Gramling, H. M. and Newton, R. D. Efficacy of Chlorinated Irrigation Water for Controlling Root Rot Organisms. International Plant Propagators Popular Articles: T-00052 Barrett, J. E. and Nell, T. A. How do the New Developments with Growth Retardants Affect You. Florida Ornamental Growers Association Newsletter T-00032 Gilman, E. F. Juniper Root Growth into Land- scape Soil One Year After Planting. Florida Nurseryman T-00037 Gilman, E. F. Root Growth After Planting. Florida Nuserymen T-00031 Gilman, E. F. and Kane, M. E. Effect of Root Pruning at Different Shoot Growth Stages on Growth and Transplantability of Southern Magnolia. American Nurseryman 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 70 Environmental Horticulture 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 T-00017 Knox, G. W. Integrated Landscape Management: A New Extension Program for Florida. Florida Nurseryman T-00044 Nell, T. A. Commercial Transport of Flowering Potted Plants. Grower Talks T-00045 Nell, T. A. and Barrett, J. E. A Review of Florida Poinsettia Production 1989. Florida Ornamental Growers Association Newsletter Research Grants: Guy C L. Low Temperature Regulated Genes Associated with Freezing Tolerance. US Dept of Agriculture. 09/01/88-08/01/91. $210,000 Ingram D L. Moisture Sensing & Irrigation Control For Container-grown Plants. Fl Turf-Grass Associa- tion. 05/01/90-08/31/91. $10,000 Kane M E. Application Of Micropropagation For Produc- tion Of Hardy Water Lilies. Dept Of Agricul & Consumer Ser. 11/01/89-12/07/90. $14,490 Kane M E. Plant Tissue Culture Technology For Marine Angiosperms Used In Habitat Restoration. U S Dept Of Commerce. 12/01/89-06/30/91. $30,829 Nell T A. Relationship Of Carbohydrate Levels To Flowering Potted Plant Longevity. Gloeckner Foundation. 09/01/89-08/31/90. $5,000 Nell T A. Poinsettia Postproduction Longevity Branching & Height Control. Paul Ecke Poinsettias. 08/01/89-07/31/90. $16,500 Nell T A. Evaluation Of Flowering Potted Plants. Ball Seed Company. 01/01/90-12/31/91. $23,000 Nell T A. Post-greenhouse Evaluation Of Forced Bulbous Plants. Amer Floral Endowment. 01/01/90- 12/31/90. $5,000 Nell T A. Physiological And Hormonal Factors Related To Longevity Of Flowering Potted Plants. Amer Floral Endowment. 01/01/90-12/31/90. $8,000 Nell T A. Increasing The Production & Postproduction Quality Of Flowering Potted Plants. Manatee Fruit Co. 03/01/90-08/31/90. $5,000 Nell T A. Postproduction Longevity Of Easter Cactus. Amer Floral Endowment. 01/01/90-12/31/90. $2,000 Nell T A. Poinsettia Postproduction Longevity Branching & Height Control. Ecke Poinsettia. 08/01/90- 07/31/91. $17,000 Yeager T H. Nitrate Nitrogen Loss From Container Nurseries: A Seven State Cooperative Project. Horticultural Research Inst. 02/09/90-02/08/91. $2,000 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Plant Pathology 71 PLANT PATHOLOGY 1,23 GEORGE N. AGRIOS Chair & Prof 4 EDWARD L. BARNARD Adj Asst Prof, Forest Pathology 1,2 JERRY A. BARTZ Assoc Prof, Post-Harvest Diseases 2 RICHARD D. BERGER Prof, Plant Disease Epidemiology 4 LAWRENCE G. BROWN Adj Asst Prof, Plant Disease 2 RAGHAVAN CHARUDATTAN Prof, Biological Control of Weeds 4 PREM S. CHOUREY Adj Assoc Prof, Gene Regulation, Tissue Culture 2,3 THOMAS E. FREEMAN Actg Asst Dean & Prof, Turfgrass Disease 1,2 DEAN W. GABRIEL Assoc Prof, Bacterial/Plant Interactions 4 STEPHEN M. GARNSEY Adj Prof, Citrus Virus 4 TIMOTHY R. GOTTWALD Adj Assoc Prof, Host-Pathogen 2 ERNEST HIEBERT Prof, Virology 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 2 FRANK N. MARTIN Asst Prof, Biological Control, Soil-Borne Plant Pathogens 4 JOHN J. MCRITCHIE Adj Asst Prof, Disease Control 4 JOHN W. MILLER Adj Assoc Prof, Plant Pathogenic Bacteria 1,2 DAVID J. MITCHELL Prof, Bio. of Soil-Borne Pathogens 23 CHARLES L. NIBLETT Prof, Biochemistry 4 DARYL R. PRING Adj Prof, Molecular Biology of Corn & Sorghum Diseases 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 1,2 NORMAN C. SCHENCK Prof, Mycorrhizae Soil Borne Pathogens 4 RAYMOND J. SCHNELL Adj Assoc Prof, Plant Breeding 2,3 GARY W. SIMONE Assoc Prof, Extension Ornamental & Vegetable Crops Diseases 1,2 ROBERT E. STALL Prof, Bacterial 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 PLP02513 Organelle DNA Organization and Cytoplas- mic Male Sterility in Pennisetum D. R. Pring PLP02527 Biological Control and Dynamical Models of Species Interactions R. D. Berger PLP02546 Genetic Improvement of Small Grains H. H. Luke PLP02600 Role of Plasmid-like DNAs in Host Specialization of Plant Pathogenic Fungi H. C. Kistler 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 Soilborne Disease in Agroecosystems of South Florida D. J. Mitchell PLP02709 Genetics of Pathogenicity of Xanthomonas campestris pv. vesicatoria R. E. Stall 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 72 Plant Pathology PLP02711 Diseases of Turfgrasses T. E. Freeman G. W. Simone R. D. Berger PLP02734 Improvement of Methods for the Culture and Preservation of VA Mycorrhizal Fungi N. C. Schenck PLP02798 Phylogenetic Relationships of Pezizales (cup-fungi) and Tuberales (truffles) J. W. Kimbrough PLP02771 Soybean Breeding R. D. Berger PLP02792 Enhancing Beneficial Microorganisms in the Rhizosphere N. C. Schenck PLP02806 Curation of the Mycological Herbarium of the University of Florida Florida J. W. Kimbrough PLP02832 Controlling Virus Diseases of Tropical Fruits and Edible Aroids C. L. Niblett J. Bird PLP02833 Development of Potyviral-Resistant Cucurbits for the Caribbean Region E. Hiebert D. E. Purcifull PLP02871 Developmental Regulation of Sucrose Synthase Genes in Maize P. S. Chourey PLP02758 Relationships of Xanthomonas Species R. E. Stall PLP03000 Molecular Approaches for Characterization and Control of Cucurbit Potyviruses E. Heibert D. E. Purcifull PLP02992 Discovery and Development of Plant Patho- gens for Biological Control of Weeds R. Charudattan T. E. Freeman PLP03008 Heritability of Resistance to Witches' Broom in Theobroma cacao L. H. Purdy R. J. Schnell PLP02844 Management of Diseases of Field Crops in North Florida T. A. Kucharek F. M. Shokes PLP03006 Biological Control of Selected Arthroods, Pests and Weeds through Introduction of Natural Enemies R. Charudattan PLP02851 Identification, Epidemiology and Control of Viruses Infecting Ornamentals, Root Crops and Legumes F. W. Zettler Refereed Publications: R-00064 Almeida, R. T. Scientific Names in the Endogonales, Zygomycotina. Mycotaxon R-00391 Almeida, R. T. and Schenck, N. C. A Revision of the Genus Sclerocystis (Glomaceae, Endogonales). Mycologia R-00383 Almeida, R. T. and Schenck, N. C. Albino Spores Associated with Dark-Spored Species of Scutellospora. Mycotaxon R-00438 Almeida, R. T. and Schenck, N. C. Ornamented Inner Walls of Scutellospora heterogama Azygospores Induced by an Actinomycetelike Microorganism. Mycologia 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 R-00644 Benny, G. L. Gilbertellaceae, A New Family of the Mucorales (Zygomycetes). Mycologia R-00643 Benny, G. L. and Benjamin, R. K. The Radiomycetaceae (Mucorales). III. A Taxonomic Reevaluation of the Family with the Description of a New Species. Mycologia 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 R-00538 Bowers, J. H. and Mitchell, D. J. The Relation- ship Between the Level of Inoculum of Phytophthora capsici and Mortality of Pepper. Phytopathology R-00127 Charudattan, R. The Mycoherbicide Approach with Plant Pathogens. Microbial Weed Control 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction Plant Pathology 73 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 R-00012 Douds, Jr., D. D. and Schenck, N. C. Cryopreservation of Spores of Vesicular-Arbuscualr Mycorrhizal Fungi. New Phytologist R-00402 Douds, Jr., D. D. and Schenck, N. C. Relation- ship of Colonization and Sporulation by VA Mycorrhizal Fungi to Plant Nutrient and Carbohy- drate Contents. The New Phytologist R-00592 Glab, N.; Wise, R. P.; Pring, D. R.; Jacq, C. and Slonimski, P. Expression in S. cerevisiae of a Gene Associated with Cytoplasmic Male Sterility from Maize: Respiratory Dysfunction and Uncoupling of Yeast Mitochondria. European Molecular Biology Journal R-00401 Kimbrough, J. W. Ultrastructural Observbations on Helvellaceae (Pezizales:Ascomycetes). V. Septal Structures in Gyromitra. Mycological Research R-00039 Kingsley, M. T. and Gabriel, D. W. Tn5-Induced Mutations of a Wide Host Range Xanthomonad Affecting General and Host-Specific Virulencel and Host-Specific Virulence. Journal of Bacteriology R-00622 Kistler, H. C.; Momol, E. M. and Benny, U. Repetitive Genomic Sequences for Determining Relatedness among Strains of Fusrium oxysporum. Phytopathology 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 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 R-00816 Martin, F. N. Characterization of Circular Mitochondrial Plasmids in Three Pythium Species. Current Gentics R-00199 Minsavage, G. V.; Canteros, R. I. and Stall, R. E. Plasmid-Mediated Resistance to Stretpmycinn in Xanthomonas campestris pv. vesicatoria. Phytopathology R-00699 Momol, E. A. and Kistler, H. C. Cell Fusion and Cytoplasmic Reassortment, but no Evidence for Stable Parasexual Recombination, in Fusarium oxysporum. Molecular Plant-Microbe Interactions R-00092 Perez, Y. and Schenck, N. C. Occurrence of Branched Sporophores in Scutellospora Gregaria. Mycologia R-00193 Pohronezny, K.; Dankers, W.; Schaffer, B.; Valensuela, H. and Moss, M. A. Factors Involved in Invasion of Hydathodes and Stomates of Cocoyam by Xanthomonas campestris pv differenchiae dieffenbachie. Plant Disease 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 R-00145 Wu, C. G. and Kimbrough, J. W. Ultrastructural Studies on the Cleistothecial Development of Emercellopsis microspora (Eurotiales, Ascomyce- tes). Canadian Journal of Botany R-00543 Zettler, F. W.; Ko, N. J.; Wisler, G. C.; Elliot, M. S. and Wong, S. M. Viruses of Orchids. Plant Disease R-00419 Zettler, F. W.; Stansly, P. A.; Elliott, M. S.; Carranza, C. and Peralta, A. Bean Pod Mottle Virus in Ecuador and its Transmission by Cerotoma spp. (Coleoptera:Chrysomelidae). Plant Disease 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 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 Non-Refereed Publications: N-00196 Charudattan, R.; DeValerio, J. T. and Prange, V. J. Microbial Control of Aquatic Weeds 1990. European Weed Research Society N-00201 Gabriel, D. W. and Rolfe, B. G. Working Models of Specific Recognition in Plant-Microbe Interac- tions. Annual Review of Phytopathology N-00177 Kucharek, T. Epidemics of Diseases in Agro- nomic Crops in North Florida, 1970-1979. Soil and Crop Science of Florida 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 74 Plant Pathology Popular Articles: T-00043 Freeman, T. E. and Simone, G. W. Turfgrass Disease Identification and Control. Southern Turf Management Research Grants: Charudattan R. Nontarget Plant Screening Of Mycoleptodiscus Terrestris A Microbial Herbicide. Ecoscience Laboratory. 08/03/89-12/31/89. $7,440 Chourey P S. Developmental Regulation Of Sucrose Synthase Genes In Maize. U S Dept Of Agricul- ture. 08/01/89-02/28/91. $40,000 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. $20,000 Gabriel D W. Dna Probes For Bean Blight Bacteria. SW Ontario Ag Research Corp. 02/02/90-02/01/91. $2,000 Hiebert E. Development Of Polyviralresistant Cucurbits For The Caribbean Region. U S Dept Of Agricul- ture. 07/01/89-06/30/90. $37,260 Hiebert E. Molecular Approaches For Characterization & Control Of Cucurbit Potviruses. Bard. 02/14/89- 02/14/92. $45,600 Hiebert E. Development Of Potyviral-resistant Cucurbits For The Caribbean Region. U S Dept Of Agricul- ture. 07/01/89-06/30/91. $43,664 Kucharek T A. Assessment Of The Agricultural Benefits Of Fungicide Use In The United States. Ohio State University. 07/01/89-08/31/90. $2,000 Niblett C L. Controlling Virus Diseases Of Tropical Fruits & Edible Aroids. US Dept Of Agriculture. 07/01/89-06/30/90. $58,150 Niblett C L. Nuclear Regulation Of Expression Of Sorghum Bicolor Mitochondrial Genome. U S Dept Of Agriculture. 01/17/90-11/30/92. $135,000 Niblett C L. Genetic Instability Regulation & Expression Of Corn & Sorghum Genes. U S Dept Of Agricul- ture. 07/01/87-06/30/92. $31,000 Niblett C L. The Development Of Transformed Cassava Resistant To Major Virus Diseases. Int Fund For Agricultural Res. 10/01/89-03/31/91. $10,000 Purdy L H. Heritability Of Resistance To Witches' Broom In Theobroma Cacao. Int Development Coop Agency. 08/11/89-12/31/92. $146,904 Schenck N C. Modification & Improvement Of The International Culture Collection Of VA Mycorrhizal. National Science Foundation. 07/01/89-09/30/90. $57,540 Simone G W. Cultivar Evaluation & Diagnostic Strategy Development For Tomato Spotted Wilt Virus. Wed Enterprises. 01/16/90-01/15/91. $47,162 Stall R E. Genetic Characterization Of Ecotypes Of Xanthomonas campestris Pv. vesicatoria. Northrup King Company. 10/15/89-10/14/91. $74,485 Zettler F W. Virus Indexing Of Lilium. Inst For The Advance Of Flori. 08/01/89-07/31/90. $5,160 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Poultry Science 75 POULTRY SCIENCE 2,3 ROBERT B. CHRISTMAS Prof, Supervisor, Florida Poultry Evaluation Center, Chipley 1,2,3 BOBBY L. DAMRON Prof, Poultry Nutrition 2,3 CARROLL R. DOUGLAS Prof, Extension Poultryman 1,2 ROBERT H. HARMS Grad Res Prof, Poultry Nutrition 1,2 DOUGLAS M. JANKY Prof, Poultry Production Technology 1,2,3 F B. MATHER Assoc Prof, Poultry Physiology 1,2 RICHARD D. MILES JR Prof, Poultry Nutrition and Management 4 ROBERT F. MILLER Adj Visiting Prof, Poultry Nutrition 1,23 MICHAEL D. OUART Assoc Prof, Extension Poultryman 4 RAYMOND F. SHUMARD Adj Prof, Poultry Science 1,2,3 DON R. SLOAN Chair & Assoc Prof 1,2,3 HENRY R. WILSON Prof, Poultry Physiology CRIS Projects: PSE02357 Mineral Metabolism in Poultry as Related to Acid Base Balance, Eggshell Quality and Bone R. D. Miles R. H. Harms PSE02372 Environmental and Management Factors Affecting Poultry F. B. Mather H. R. Wilson PSE02374 Relationship of Water-borne Nutrients and Water Quality to Poultry Performance B. L. Damron PSE02419 Factors Affecting Reproductive Efficiency in Poultry Breeder Flocks H. R. Wilson F. B. Mather R. H. Harms PSE02491 Nutritional Programs for Turkeys R. H. Harms R. D. Miles H. R. Wilson PSE02579 Development of New Processes and Technologies 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 PSE02998 Influence of Water Quality, Feed and Water Additives upon Poultry Performance B. L. Damron 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 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 R-00824 Bootwalla, S. M. and Miles, R. D. Nutrient Requirement of Breeder Males: A Review. World's Poultry Science Journal R-00407 Damron, B. L. and Flunker, L. K. Supplementa- tion of Broiler Drinking Water with Liquid Ammo- nium Polyphosphate. Poultry Science R-00516 Damron, B. L. and Sloan, D. R. Research Note: Energy Supplementation of Laying Hen Feed and Drinking Water. Poultry Science 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 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 R-00209 Fethiere, R. F.; Miles, R. D. and Harms, R. H. The Utilization of Sodium in Ethacal Feed Compo- nent for Broilers and Layng Hens. Poultry Science 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 76 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 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 R-00795 Harms, R. H. Performance of Commercial Laying Hens Fed Various Supplemental Amino Acids in a Corn Soybean Meal Diet. Poultry Science 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 R-00630 Harms, R. H. The Influence of Removing Salt, Sodium or Chloride from Diet of Commercial Layers. Poultry Science R-00237 Harms, R. H. and Bootwalla, S. M. Research Note: A Lack of Response to Pantothenic Acid Supplementation by Turkey Poults Fed a Corn- Soybean Meal Diet from Four to Twelve Weeks of Age. Poultry Science R-00787 Harms, R. H. and Ivey, F. J. An Evaluation of the Lysine Requirement and Lysine Supplementation for Broiler Breeder Hens. Poultry Science R-00558 Harms, R. H. and Ivey, F. J. The Use of Corn- Soybean Meal Diet for Assaying the Lysine Requirement of the Commercial Laying Hens. Poultry Science R-00496 Harms, R. H. and Sloan, D. R. Research Note: Influence of Age on Egg Shell Quality from Commercial Laying Hens. Poultry Science R-00615 Nelson, D. S.; Janky, D. M. and Harms, R. H. Research Note: A Lack of Fluctuation in Xantho- phyll Blood Level in Laying Hens at Night and Absence of Pigmentation Rings in the Yolk. Poultry Science R-00614 Nelson, D. S.; Janky, D. M. and Harms, R. H. Research Note: A Short Assay for Use in Pigmen- tation Evaluation of Egg Yolks. Poultry Science R-00371 Ouart, M. D. and Wilson, H. R. Comparison of Infra-Red Lamb vs Quartz Bar Radiant Brooders with Bobwhite Quail. Poultry Science R-00474 Ruiz, N. and Harms, R. H. Research Note: The Lack of Response of Broiler Chickens to Supple- mental Niacin When Fed a Corn-Soybean Meal Diet from 3 to 7 Weeks of Age. Poultry Science R-00274 Sabri, H. M.; Wilcox, C. J.; Wilson, H. R. and Harms, R. H. Measuring Genetic Variation in Metabolizable Energy Intake of Hen Adjusted for Body Weight and Egg Production. Poultry Science R-00264 Sabri, H. M.; Wilson, H. R.; Harms, R. H. and Boulos, N. Z. A Procedure for Measuring Energy Efficiency of Individual Laying Hens. Poultry Science R-00275 Sabri, H. M.; Wilson, H. R.; Wilcox, C. J. and Harms, R. H. A Comparison of Energy Efficiency Among Six White Leghorn Lines. Poultry Science R-00771 Sams, A. R. and Janky, D. M. Characterization of Rigor Mortis Development in Four Broiler Muscles. Poultry Science R-00515 Wilson, H. R. Interrelationships Among Egg Size, Chick Size, Posthatching Growth and Hatchability. World's Poultry Science Journal R-00444 Wilson, H. R. and Keeling, L. Effect of Time of Feeding on Oviposition Time and Production Parameters in Broiler Breeders. Poultry Science Popular Articles: T-00060 Ouart, M. D.; Damron, B. L.; Mather, F. B. and Marion, J. E. Another Approach: Fasting Diet Stressed Broilers. Poultry Science T-00036 Ouart, M. D.; Russell, G. B. and Wilson, H. R. Mating Behavior in Response to Toe Nail Removal in Broiler Breeder Males. Poultry Science Association T-00064 Wilson, H. R. The Effects of Temperature, Egg Orientation and Egg Turning on the Avian Embryo. Poultry Digest Research Grants: Miles R D. An Evaluation Of The Efficacy & Commercial Feasibility Of Ardacin-virginiamycin. Smithkline Beckman. 10/09/89-11/27/89. $10,000 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Soil Science 77 SOIL SCIENCE 4 RICHARD W. ARNOLD Adj Prof, Pedology Genesis & Classification, Coop USDA-SCS 1,3 RANDALL B. BROWN Prof, Extension Soils Specialist Land Use 1,2 MARY E. COLLINS Assoc Prof, Pedology Genesis & Classification & Graduate Coord 1,2 NICHOLAS B. COMERFORD Assoc Prof, Soil Fertility, Forest Soils 2 JAMES M. DAVIDSON Dean for Research, Prof & Director 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 & Management 1,2 WILLIE G. HARRIS Assoc Prof, Soil Genesis & Mineralogy 2,3 ARTHUR G. HORNSBY Prof, Soil Physics, Soil Water Management 4 YUCH P. HSIEH Adj Assoc Prof, Soil Genesis & Mineralogy, Florida A&M 1,2 DAVID H. HUBBELL Prof, Soil Microbiology Rhizosphere 1,2 CLIFFORD T. JOHNSTON Assoc Prof, Soil Physical Chemistry 3 GERALD KIDDER Acting Chair & Prof 1,2 ROBERT S. MANSELL Prof, Soil Physics Water and Nutrient Movement 1,23 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 P. SURESH RAO Prof, Soil Physics Soil Water Relations 1,2 R. DEAN RHUE Assoc Prof, Soil Physical Chemistry 1,2,3 JERRY B. SARTAIN Prof, Soil Fertility Turf & Ornamentals 4 EARL L. STONE JR Adj Prof, Forest Soils 1,2 JIMMY J. STREET Assoc Prof, Soil Chemistry Micronutrients 1,2 DAVID M. SYLVIA Assoc Prof, Soil Micro- biology 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 SOS02555 Influence of Soil Fertility on the Growth and Quality ofTurfgrasses J. B. Sartain SOS02557 Mineralogy of Selected Soils in the Southern Region W. G. Harris V. W. Carlisle M. E. Collins R. D. Rhue SOS02651 Characterization, Classification, and Mapping of Florida Soils V. W. Carlisle 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 E. A. Hanlon A. G. Hornsby P. Nkedi-Kizza 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 78 Soil Sciences SOS02781 Variability of Soil Properties and its Effect on Water Quality and Soil Management A. G. Hornsby L. C. Hammond P. Nkedi-Kizza SOS02792 Enhancing Beneficial Microorganisms in the Rhizosphere D. H. Hubbell D. M. Sylvia SOS02718 Crop, Soil and Water Management and Economics of Rice Grown on Organic Soils of South Florida K. R. Reddy SOS02848 Pesticides and Other Organics in Soils and Their Potential for Groundwater Contamination P. S. Rao A. G. Homsby C. T. Johnston L. T. Ou P. Nkedi-Kizza J. J. Street SOS02867 Transport of Multiple Cations During Water Flow in Acid Mineral Soils R. S. Mansell R. D. Rhue W. G. Harris P. Nkedi-Kizza SOS02997 Chemistry and Bioavailability of Waste Constituents in Soils J. J. Street G. W. Easterwood 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 R-00197 Brown, R. B. and Huddleston, J. H. Presentation of Statistical Data on Map Units to the User. Symposium on Spatial Variability and Map Units for Soil Surveys R-00102 Brusseau, M. L. and Rao, P. S. Modeling Solute Transport in Structured Soils: A Review. Geoderma R-00737 Brusseau, M. L. and Rao, P. S. Sorption Kinetics of Organic Chemicals: Methods, Models and Mechanisms. Soil Science Society of America R-00353 Brusseau, M. L.; Jessup, R. E. and Rao, P. S. Sorption Kinetics of Organic Chemicals: Evalua- tion of Gas-Purge and Miscible-Displacement Techniques. Environmental Science and Technology 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 R-00758 Burgoa, B.; Mansell, R. S. and Rhue, D. Effect of Solids Concentrations upon Non-Equilibrum Phosphorus Sorption in Aqueous Soil Suspensions. Soil and Crop Science Society of Florida 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 R-00389 DeBusk, W. F.; Reddy, K. R. and Graetz, D. A. Comparative Rates of Methane Efflux through Emergent Aquatic Macrophytes. Aquatic Botany 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 R-00044 Fisher, H. M. and Stone, E. L. Active K-Uptake by Slash Pine Roots from 02-Depleted Solutions. Forest Science R-00059 Fisher, H. M. and Stone, E. L. Air-Conducting Porosity on Slash Pine Roots. Forest Science R-00252 Fisher, H. M. and Stone, E. L. Iron Oxidation at the Surfaces of Slash Pine Roots from Saturated Soils. Soil Science Society of America R-00381 Fox, T. R. and Comerford, N. B. Phosphorus and Aluminum Release Caused by Low-Molecular- Weight Organic Acids. Soil Science Society of America R-00072 Fox, T. R. and Comerford, N. B. Water Soluble Organic Acids in Selected Forest Soils of the Southeastern United States. Soil Science Society of America 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 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Soil Science 79 R-00191 Grant, S. A.; Bloom, S. A.; Mansell, R. S. and Rhue, R. D. Simulations of the Transport of Three Cations through Porous Media Using Different Selectivity Coefficients. Water Resources Research 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 R-00710 Johnston, C. T.; Agnew, S. F. and Bish, D. I. Polarized Single-Crystal Fourier Transform Infrared Microscopy of Ouray Dickite and Keokuk Kaolinite. Clays and Clay Minerals 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 R-00250 Lee, L. S.; Rao, P. S.; Nkedi-Kizza, P. and Delfino, J. J. Influence of Solvent and Sorbent Characteristics on Distribution of Pentachlorophe- nol in Octanol-Water and Soil-Water Systems. Environmental Science and Technology R-00738 Lin, Z. and Myhre, D. L. Differential Response of Citrus Rootstocks to Aluminum Levels in Nutrient Solutions: II. Plant Growth. American Society for Horticultural Science R-00739 Lin, Z. and Myhre, D. L. Differential Response of Citrus Rootstocks to Aluminum Levels in Nutrient Solutions: II. Plant Mineral Concentrations. American Society for Horticultural Science R-00471 Lin, Z. and Myhre, D. L. Supernatant Solutions Containing Various Levels of Aluminum and Similar Concentrations of Phosphorus as Culture Solutions for Aluminum Studies. Soil Science Society of America R-00571 Mansell, R. S.; Bloom, S. A. and Aylmore, L. A. Simulating Cation Transport During Unsteady, Unsaturated Water Flow in a Sandy Soil. Soil Science R-00503 McCarthy, J. W. and Stone, E. L. Changes in Soil Water Tables Following Phosphorus for Fertilization of Young Slash Pine. Soil Science Society of America 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. Journal of Environmental Quality R-00347 Moorhead, K. K. and Reddy, K. R. Carbon and Nitrogen Transformation in Wastewater During Treatment with Hydrocotyle umbellata. Aquatic Botany R-00751 Moorhead, K. K.; Graetz, D. A. and Reddy, K. R. Treatment of Anaerobic Digester Effluents Using Water Hyacinth. Journal of Biological Wastes R-00802 Ou, L. T. Interactions of Microorganisms and Soil During Fenamiphos Degradation. Soil Science Society of America 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 R-00246 Pinal, R.; Rao, P. S.; Lee, L. S.; Cline, P. V. and Yalkowsky, S. H. Cosolving of Partially-Miscible Organic Solvents on the Solubility of Hydrophobic Organic Chemicals Hydrophobic Organic Chemi- cals. Environmental Science and Technology R-00583 Poole, B. C. and Sylvia, D. M. Companion Plants Affect Colonization of Myrica cerifera L. by Vesicular-Arbuscular Mycorrhizal Fungi. Canadian Journal of Botany R-00198 Rao, P. S. Sorption of Organic Contaminants. Water Science and Technology R-00247 Rao, P. S.; Lee, L. S. and Pinal, R. Cosolving and Sorption of Hydrophobic Organic Chemicals. Environmental Science and Technology R-00348 Reddy, K. R. and Debusk, W. F. Decomposition of Water Hyacinth Detritus in Eutrophic Lake WAter. Hydrobiologia R-00084 Reddy, K. R.; D'Angelo, E. M. and DeBusk, T. A. Oxygen Transport Through Aquatic Macro- phytes: The Role in Wastewater Treatment. Journal of Environmental Quality 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. Soil Biology and Fertility 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 R-00709 Rhue, R. E. and Rao, P. S. Application of Gas Chromatographic techniques for Characterizing Vapor Sorption on Soils: A Review. Chemosphere 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 80 Soil Science R-00074 Stone, E. L. Boron Deficiency and Excess in Forest Trees: A Review. Forest Ecology and Management R-00179 Sylvia, D. M. and Neal, L. H. Nitrogen Affects the Phosphorus Response of VA-Mycorrhiza. New Phytologist R-00382 Van Rees, K. C. and Comerford, N. B. Uptake Kinetics and Selectivity for Potassium and Rubidum by Slash Pine Roots. Canadian Journal of Forest Research 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 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 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 R-00804 Wang, H. D.; Harris, W. G. and Yuan, T. L. Presence of Noncrystalline Phosphates in Florida Phosphatic Soils. Soil Science Society Non-Refereed Publications: N-00216 Box, Jr., J. E. and Hammond, L. C. Rhizosphere Dynamics. Rhizosphere Dynamics N-00204 Sartain, J. B. and Wang, Y. Effects of Urea-Urea and Urea-Nitric Phosphates on Plant Growth and Selected Soil Chemical Characteristics. Soil and Crop Science Society N-00176 Sylvia, D. M. Beneficial Root-Associated Fungi Improve Establishment of Sea Oats on Nourish- ment Sand. Beaches: Lessons of Hurricane Hugo Research Grants: Carlisle V W. Acceleration Of Soil Surveys In Florida Basic Agreement. Dept Of Agricul & Consumer Ser. 07/01/89-06/30/90. $148,000 Graetz D A. Fate Of Fertilizer Nitrogen In Maize & Groundnut Crop Rotation Systems In Zambia. North Carolina A&T University. 11/27/89- 11/26/90. $3,000 Graetz D A. Determining Chemical Exchange Across Lake Water-sediment Interface. U S Dept Of Interior. 12/01/89-07/31/91. $16,000 Hornsby A G. Agricultural Chemical Impact Evaluation & Management System. Oklahoma State University. 07/15/89-07/14/91. $34,000 Johnston C T. Chemical Mechanisms Of Interaction Of Aromatic Hydrocarbons By Clay Minerals In Soil. U S Air Force. 12/09/88-12/31/90. $131,831 Ou L T. Degradation Of Telone Ii & Fenamiphos In Subsoils & Groundwater & By Microorganism. U S Dept Of Agriculture. 07/01/90-06/30/93. $90,000 Rao P S. Environmental Partitioning & Release Of Organics From Utility Waste Disposal Sites. University Of Texas. 04/01/89-12/31/89. $347,172 Rao P S. Solubility & Sorption Of Hydrophobic Organic Compounds In Complex Solvents. Environmental Protection Agency. 10/19/89-10/18/90. $218,172 Rao P S. Multi-solute Sorption Chemistry Of Phenolic Compounds In Soils & Groundwater. Battelle Laboratories. 05/15/89-09/30/92. $61,600 Reddy K R. Sediment Chemistry Of The Wetland Systems. Reedy Creek Energy Services. 05/01/88- 09/30/89. $11,600 Reddy K R. Lake Okeechobee Phosphorus Dynamics Study. Water Management Districts. 02/12/88- 02/12/91. $10,500 Reddy K R. Knight's Farm Nutrient Study. Water Management Districts. 02/01/90-07/31/91. $123,562 Reddy K R. Nitrogen & P Removal By Wetlands. Azurea Incorporated. 03/01/90-12/31/90. $15,000 Reddy K R. Physico-chemical Properties Of Lake Maggiore Sediments (lake Restoration Project). Ch2M Hill. 05/21/90-09/30/90. $10,000 Reddy K R. Knight's Farm Nutrient Study. Water Management Districts. 02/01/90-07/31/91. $96,900 Sartain J B. Studies Involving The Use Of Nitroform On Turfgrasses. Nor-am Agricultural Products. 05/01/89-04/30/90. $2,400 Sartain J B. Effects Of Types & Rates Of N & K Sources On Turfgrasses. Canadian Industries Limited. 05/01/89-04/30/90. $4,500 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Soil Science 81 Sartain J B. Evaluation Of Deflorinated Phosphate On Turfgrasses. Consolidated Minerals. 08/01/89- 03/01/90. $1,800 Sartain J B. Evaluation Of Release & Leaching Character- istics Of Super Turf. Agrico Chemical Company. 08/15/89-01/30/90. $500 Sartain J B. Effects Of Types & Rates Of N&k Sources On Turfgrasses. Fl Turf-grass Association. 10/01/89- 09/30/90. $5,000 Sartain J B. Lunar Soil Stimulant Plant Growth Studies: An Assessment Of Mineralogical Chemical. Tech Research & Dev Authority. 07/01/90-06/30/91. $50,000 Sartain J B. Establishing Vegetative Cover On Phosphogypsum. Fl Inst Of Phosphate Research. 04/27/90-04/26/93. $60,585 Sartain J B. Effects Of Organiform On Growth Of Turfgrasses. R E Kelly Associates. 12/01/88- 12/31/91. $1,200 Sartain J B. Studies Involving Nitroform On Warm & Cool Season Turfgrasses. Nor-am Agricultural Products. 05/01/90-04/30/91. $2,400 Sartain J B. Evaluation Of Release & Leaching Character- istics Of Agrico Turf. Agrico Chemical Company. 08/15/89-03/31/91. $900 Sartain J B. Effects OfN & K Sources In Growth & Quality Of Turfgrass. Canadian Industries Limited. 05/01/90-04/30/91. $4,800 Sartain J B. Effectiveness Of Rlcu Products On Warm Season Turfgrass. Pursell Industries. 05/15/90- 05/14/91. $8,400 Sartain J B. Effects Of Coron Based Products On Cool & Warm Season Turfgrasses. Coron Corp. 03/01/90- 03/15/91. $2,400 Sartain J B. Evaluation Of Slow Release Materials On Turfgrasses. Pursell Industries. 06/01/89-12/31/89. $600 Street J Seafood Industry Waste Demonstration Projects. Dept Of Environmental Regulation. 08/01/89-10/31/90. $70,545 Street J J. Land Application Of Dewatered Domestic Wastewater Sludge On Citrus. Palm Beach County. 10/19/89-09/30/92. $30,390 Sylvia D M. State University System Of Florida Sea Grant College Program. U S Dept Of Commerce. 01/16/90-04/30/90. $2,650 Sylvia D M. State University System Of Florida Sea Grant College Program Services. US Dept Of Commerce. 01/16/90-11/30/90. $3,188 Sylvia D M. Monitoring VAM Fungi On The Hole-in-the Donut Mitigation Site, Enp. U S Dept Of Interior. 04/30/90-09/30/93. $73,796 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 82 Statistics STATISTICS 4 VICTOR CHEW Adj Prof, Least Squares & Regression Analysis 2 JOHN A. CORNELL Prof, Design of Experiments, Experiments With Mixtures 2 RAMON C. LITTELL Prof, Theory of Inference, Statistical Computing 2 FRANK G. MARTIN Prof, Design & Analysis of Experiments, Statistical Genetics 2,3 KENNETH M. PORTIER Assoc Prof, Environ- mental Statistics 4 RONALD H. RANDLES Chair & Prof CRIS Projects: STA02820 Experimental Designs and Models for use in Agricultural Mixture Experiments J. A. Cornell STA02999 Evaluation of and Maximizing the Use of Alternatie Energy Feed Sources for Swine Diets R. C. Littell STA02990 Statistical Models and Analyses for Repeated Measures Data R. C. Littell Research Grants: Comell J A. Editor Journal Of Quality Technology. Amer Soc For Quality Control. 07/01/89-06/30/90. $37,210 Comell J A. Editor Journal Of Quality Technology. Amer Soc For Quality Control. 07/01/90-06/30/91. $34,030 1 Resident instruction 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 2 Research 3 Extension 4 Other UF or Cooperating Agency Vegetable Crops 83 VEGETABLE CROPS 1,2 MARK J. BASSETT Prof, Horticulture, Plant Breeding 1,2 THOMAS A. BEWICK Asst Prof, Vegetable Production 4 CHARLES D. BOYER Adj Prof, Biochemical Genetics 1,2 JEFFREY K. BRECHT Assoc Prof, Postharvest Physiology 1,2,3 DANIEL J. CANTLIFFE Chair & Prof, Seed Physiology 1,2 CHRISTINE D. CHASE Asst Prof, Molecular Genetics 4 RAYMOND P. CHEE Adj Asst Prof, Tissue Culture 1,2 ROBERT J. FERL Prof, Biological Sciences 2 CHESLEY B. HALL Prof, Physiology 1,2 LARKIN C. HANNAH Prof, Horticulture, Biochemical Genetics 2,3 GEORGE J. HOCHMUTH Assoc Prof, Extension Vegetable Specialist Nutrition 1,2 DONALD J. HUBER Prof, Postharvest Physiology 1,2 THOMAS E. HUMPHREYS Prof, Horticulture, Physiology 1,2 STEPHEN R. KOSTEWICZ Assoc Prof, Crop Production 1,2 SALVADORE J. LOCASCIO Prof, Herbicides and Nutrition 3 DONALD N. MAYNARD Prof, Veg Crops Spec 1,2 DONALD R. MCCARTY Asst Prof, Seed Physiology 4 HENRY A. ROBITAILLE Adj Prof, Horticulture - EPCOT 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: VEC02261 Development of Improved Carrot Cultivars for Florida M. J. Bassett VEC02405 Vegetable Cultivar Evaluation S. J. Locascio S. R. Kostewicz M. B. Lazin S. M. Olson M. Sherman D. N. Maynard 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 M. Sherman VEC02536 Characterization of Plant Genes Involved in Mineral Metabolism and Cytoplasmic-nuclear Interactions C. D. Chase 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 VEC02564 Molecular Genetics of Cytoplasmic Male Sterility in Common Bean, Phaseolus vulgaris C. D. Chase M. J. Bassett 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 VEC02597 Zinc Chelation in Citrus-Metabolic Role in a Decline Disorder C. D. Chase VEC02612 Weed Control in Vegetable Crop Production S. J. Locascio S. R. Kostewicz W. M. Stall T. A. Bewick VEC02640 Development of Cultivars and Specialized Genetic Stocks for Basic Research in Common Bean M. J. Bassett 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 84 Vegetable Crops 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 Horticultural 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 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 VEC02853 Molecular Analysis of Regulatory Gene Interaction in Maize D. R. McCarty VEC02831 Biological Control of Nutsedge with Fungal Pathogens T. A. Bewick VEC02878 Molecular Genetics of Cytoplasmic Male Sterility in Phaseolus vulgaris C. D. Chase VEC02877 Molecular and Genetic Analysis of Low Temperature Tolerance in Tomato C. E. Vallejos VEC02883 Cellular and Whole Plant Complexation and Transport of Zinc and Copper C. D. Chase 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. D. Chase C. E. Vallejos Refereed Publications: R-00098 Ahrens, M. J. and Huber, D. J. Physiology and Firmness of Ripening Tomato Fruit. Physiologica Plantarum R-00486 Bae, J. M. and Hannah, L. C. Cloning and Characterization of the Brittle-2 Gene of Maize. Maydica R-00432 Bassett, M. J. A Pleiotropic Mutant at the sb Locus in Common Bean that Produces Male Sterility and Spindly Branching. American Society for Horticultural Science R-00629 Bassett, M. J. Revision of the Linkage Map of Common Bean Based on Prakken's Gene Recon- ciliation and other Commentaries. HortScience R-0Q158 Bassett, M. J. Three Mimic Mutants for Spindly Branch in Common Bean and Tests for Linkage with Reclining Foliage Mutants. HortScience 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 R-00023 Bassett, M. J. and Lin-Bao, X. Inheritance of Red Flower Color Derived from Phaseolus coccineus in Crosses with Purple Flowered P. vulgaris. American Society for Horticultural Science R-00190 Bewick, T. A.; Kostewicz, S. R. and Stall, W. M. Influlence of Fungicides/Bactericides on Control of American Black Nightshade (Solanun americanum, Mill.) with Paraquat. HortScience 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 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 R-00635 Bournival, B. L. and Vallejos, C. E. New Sources of Genetic Resistance to Race Three of Fusarium Wilt of Tomato. Plant Disease 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Vegetable Crops 85 II R-00205 Bournival, 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 R-00278 Braverman, M. P.; Duskky, J. A.; Locascio, S. J. and Hornsby, A. G. Sorption and Degradation of Thiobencarb. Weed Science Science Society R-00277 Braverman, M. P.; Locascio, S. J.; Dusky, J. A. and Homsby, A. G. Mobility and Bioactivity of Thiobencarb. Weed Science Society of America 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 Applica- tion. American Society of Horticultural Science R-00396 DeLisle, A. J. and Ferl, R. J. Characterization of the Arabidopsis Adh G-Bos Binding Factor. The Plant Cell 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 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 R-00798 Leskovar, D. I. and Cantliffe, D. J. Tomato Transplant Growth Morphology affected by Handling and Storage. HortScience R-00259 Leskovar, D. 1.; 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 R-00149 McCarty, D. R.; Carson, C. B.; Lazar, M. and Simonds, S. C. Transposable Element-Induced Mutations of the Viviparous-1 Gene in Maize. Developmental Genetics R-00175 McKendree, W. L.; Paul, A. L.; DeLisle, A. J. and Ferl, R. J. In Vivo and In Vitro Characteriza- tion of Protein Interactions with the Dyad G-Box of the Arabidopsis Adh Gene. The Plant Cell R-00671 Morrish, F. M.; Hanna, W. W. and Vasil, I. K. The Expression and Perpetuation of Inherent Somatic Variation in Regenerants from Embryo- genic Cultures of Pennisetum glaucum (L.) R.BR. (Pearl Millet). Theoretical and Applied Genetics R-00752 Odell, G.; Cantliffe, D. J. and Bryan, H. H. Field Establishment of Fresh Market Tomatoes Sown at High Temperatures. American Society for Horticultural Science R-00665 Paul, A. L. and Ferl, R. J. Adhl and Adh2 Transcriptional Regulation. Maydica R-00688 Paul, A. L. and Ferl, R. J. Constitutive and Reversible Interactions of DNA-Binding Factors with the 5' Flanking Region of Maize ADH1 In Vivo. Plant Physiology 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 R-00535 Redway, F. A.; Vasil, V. and Vasil, I. K. Charac- terization and Regeneration of Wheat (Triticum aestivum L.) Embryogenic Cell Suspension Cultures. Plant Cell Reports 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 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 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 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 R-00097 Vasil, V.; Clancy, M.; Ferl, R. J.; Vasil, I. K. and Hannah, L. C. Increased Gene Expression by the First Intron of Maize Shrunken-1 Locus in Grass Species. Plant Physiology R-00527 Vasil, V.; Redway, F. and Vasil, I. K. Regenera- tion of Plants from Embryogenic Suspension Culture Protoplasts of Wheat (Triticum aestivum L.). Bio/Technology 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 86 Vegetable Crops i i Ili Non-Refereed Publications: N-00114 Gull, D. D.; Brecht, J. K.; Datnoff, L. E.; Raid, R. N. and Guzman, V. L. Storability of California and Florida Crisphead Lettuce. II. Fungicide Treatments. Florida State Horticultural Society N-00162 Hochmuth, B. and Hochmuth, G. J. Evaluation of Slicing Cucumber Cultivars for North Florida. Florida State Horticultural Society N-00149 Hochmuth, G. J.; Hanlon, E.; Gilreath, P. R. and Shuler, K. Field Evaluation of Nitrogen Programs for Subsurface-Irrigated Tomatoes. Florida State Horticultural Society N-00010 Lamberts, M. L. Latin American Vegetables. National Symposium New Crops Research, Development, Economics N-00011 Lamberts, M. L. and Crane, J. H. Tropical Fruits. 1st National Symposium New Crops, Research, Development, Economics N-00168 Lamberts, M.; Marewski, G.; Monteith, R. H. and Rabin, M. "The Guide": An Industry Response to New Regulations. Florida State Horticultural Society N-00124 Locascio, S. J. and Smajstrla, A. G. Drip Irrigated Tomato as Affected by Water Quantity and N and K Application. Florida State Horticultural Society N-00125 Locascio, S. J.; Stall, W. M.; Olson, S. M. and Vavrina, C. S. Watermelon Production as Influ- enced by Herbicide Combination and Cultivation. Florida State Horticultural Society N-00110 Olson, S. M. Pruning Method Effects on Yield, Fruit Size, and Percentage of Marketable Fruit of 'Sunny' and 'Solar Set' Tomatoes. Florida State Horticultural Society N-00136 Stall, W. M.; Locascio, S. J. and Hochmuth, R. C. Preemergence and Postemergence Weed Control in Snap Beans. Florida State Horticultural Society N-00098 Tanne, I. and Cantliffe, D. J. Seed Treatments to Improve Rate and Uniformity of Celery Seed Germination. Florida State Horticultural Society Brecht J K. Evaluation Of Tomato Handling & Packaging. Campbell Soup Company. 04/01/89-10/01/89. $10,200 Cantliffe D J. Somatic Embryogenesis & Synthetic Seed Production For Plant Propagation. U S Dept Of Agriculture. 01/01/90-12/31/90. $15,000 Cantliffe D J. Biological Protectants For Sweet Corn. Cornell University. 12/11/89-12/10/90. $2,500 Cantliffe D J. Lettuce Production From Transplants. Fl Lettuce Foundation. 07/01/90-06/30/92. $24,000 Cantliffe D J. Vegetable Agriculture In Florida. Pioneer Hi-bred International. 07/01/90-12/31/90. $12,000 Chase C D. Molecular Genetics Of Cytoplasmic Male Sterility In Phaseolus vulgaris. U S Dept Of Agriculture. 09/01/89-08/31/91. $100,000 Ferl R J. Trans-acting Factors Regulating Adh Gene Expression. National Institutes Of Health. 01/01/89-12/31/93. $104,271 Hannah L C. Further Development Of Shrunken-1 First Intron. Uf Div Of Sponsored Research. 07/31/89- 06/30/90. $26,000 Hannah L C. Maize Endosperm Development. Pillsbury Company Inc. 04/01/90-03/31/93. $91,426 Hochmuth G J. Production Of Antitumor Agents By Plants Grown Under Hydroponic Conditions. National Institutes Of Health. 08/28/89-08/27/90. $12,000 McCarty D R. Molecular Analysis Of Viviparous-1 Gene In Maize. National Science Foundation. 06/01/88- 05/31/91. $78,400 Sargent S A. Degreening Carambola Fruits: Commercial Feasibility. J R Brooks & Sons. 12/01/89-06/30/90. $720 Sargent S A. Feasibility Study Of Options For Standard- ized Containers For Shipping Bell Pepper. Fl Bell Pepper Growers Exch. 05/01/90-04/30/91. $2,800 Vallejos C E. Molecular & Genetic Analysis Of Low Temperature Tolerance In Tomato. U S Dept Of Agriculture. 08/15/89-08/31/92. $100,000 Research Grants: Bewick T A. Biological Control Of Nutsedge With Fungal Pathogens. U S Dept Of Agriculture. 07/01/89- 06/30/90. $42,650 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction School of Forest Resources & Conservation 87 SCHOOL OF FOREST RESOURCES & CONSERVATION 1,2,3 ARNETT C. MACE JR Dir and Prof Research Grants: Kitchens W M. Graduate Research In Fish & Game Commission. Game & Fresh Water Fish Commis. 07/01/79-12/31/99. $133,427 Mace A C. Impact Of Forest Practices On Multiple Forest Values. U S Dept Of Agriculture. 10/01/88- 12/31/89. $24,840 Mace A C. Impact Of Forest Practices On Multiple Forest Values. U S Dept Of Agriculture. 10/01/89- 12/31/90. $90,000 Mace A C. Polk County Mined Lands Agricultural Research/Demonstration Project. Polk County. 03/01/90-02/28/91. $85,480 Percival H F. Alligator Egg Viability & Effects Of Ranching On Selected Lakes In Florida. Fl Alligator Farmers Assoc. 05/01/88-07/30/92. $15,391 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 88 Forestry FORESTRY 1,2 ROBERT C. ABT Assoc Prof, Forest Economics 1,2 LOUKAS G. ARVANITIS Prof, Mensuration Biometrics 1,2 GEORGE M. BLAKESLEE JR Assoc Prof, Forest Pathology 4 RONALD J. DINUS Adj Prof, Forest Genetics 23 MARY L. DURYEA Assoc Prof, Tree Physiology/ Reforestation 4 KAY M. EOFF Affil Asst Prof, Alternate Energy Sources 1,2 KATHERINE C. EWEL Prof, Ecology 1,3 DAVID M. FLINCHUM Prof, Forestry Management 4 STEPHEN W. FRAEDRICH Adj Asst Prof, Forest Pathology 1,2 HENRY L. GHOLZ Prof, Forestry Ecology 4 LEWIS R. GROSENBAUGH Adj Prof, Forest Mensuration 1,2 JON D. JOHNSON Assoc Prof, Tree Physiology 1,2 ERIC J. JOKELA Assoc Prof, Silviculture 4 SUSAN N. KOSSUTH Adj Assoc Prof, Forest Physiology, Genetics 2 MARK S. LESNEY Asst Prof, Forest Biotechnology 4 CORINNE LEYVAL Adj Asst Prof, Mycorrhizal Fungi 1,2 ALAN J. LONG Assoc Prof, Forest Operations 1,2,3 ARNETT C. MACE, JR. Dir & Prof 4 THOMAS MILLER Adj Prof, Plant Pathology, USFS, SE Forest Experiment Station, Gainesville 2 PUTHEN K R. NAIR Vis Prof, Agroforestry 1,2,3 CHARLES P. REID Chair & Prof, Ecology, Physiology 2,3 HANS RIEKERK Assoc Prof, Forest Hydrology 1,2 DONALD L. ROCKWOOD Prof, Forest Genetics 1,2 ROBERT A. SCHMIDT Prof, Forest Pathology 4 ANTHONY E. SQUILLACE Adj Prof, Genetics, USFS SE Forest Experiment Station 4 BENEE F. SWINDEL Adj Prof, Biometry 2,3 ROGER S. WEBB Assoc Prof, Forest Pathology 1,2 TIMOTHY L. WHITE Assoc Prof, Forest Genetics CRIS Projects: FOR01827 Impact of Forest Management Practices on Multiple Forest Values W. H. Smith H. Riekerk K. C. Ewel W. L. Pritchett D. L. Rockwood J. D. Johnson C. A. Hollis W. R. Marion A. C. Mace L. D. Harris H. L. Gholz E. J. Jokela G. M. Blakeslee FOR02212 Effects of Management on Ecological Relationships in Cypress Swamps K. C. Ewel FOR02255 Effects of Hexazinone on Managed Pine Ecosystems in Florida D. M. Flinchum A. J. Long FOR02315 The Economics of Forest Management in the Southeastern Coastal Plain D. R. Dippon FOR02334 Pine Tree Evapotranspiration H. Riekerk 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 R. E. Goddard T. L. White FOR02443 Relationsips and Interactions between Pathogens, their Hosts, and Attack by Bark Insects R. S. Webb FOR02465 Epidemiology and Management of Fusiform Rust R. A. Schmidt FOR02503 Fertilization and Nutrition of Southern Pine E. J. Jokela A. V. Mollitor 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 2 Research 3 Extension 4 Other UF or Cooperating Agency I - 1 Resident Instruction Forestry 89 I II II 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 Mechanism 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. Wehb 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 FOR02856 Relationships Between Human Population Growth and Wildlife Species Diversity in Hard- wood Hammocks J. M. Schaefer FOR02864 Ethylene's Role in the Induced Host Resistance to Bark Beetles and Vectored Fungi J. D. Johnson Refereed Publications: R-00351 Bannister, M. E. and Nair, P. K. Alley Cropping as a Sustainable Agricultural Technology for the Hillsides of Haiti: Experience of an Agroforestry Outreach Project. American Journal of Alternative Agriculture R-00585 Brugger, K. E. Anatomical Adaption of the Gut to Diet in Red-Winged Blackbirds (Agelaius phoeniceus). Auk 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 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 R-00736 De Souza, S. M.; White, T. L.; Hodge, G. R. and Schmidt, R. A. Genetic Parameter Estimates for Greenhouse Traits of Slash Pine Artificially Inoculated with Fusiform Rust Fungus. Forest Science R-00224 Duryea, M. L. Nursery Fertilization and Top Pruning of Slash Pine Seedlings. Southern Journal of Applied Forestry R-00536 Duryea, M. L. and Dougherty, P. M. Forest Regeneration Manual. Kluwer Academic Publishers R-00018 Ewel, K. C. Evaluating Multiple Demands on Wetlands. Wetlands R-00740 Ewel, K. C. Regeneration in Harvested and Undisturbed Cypress Swamps. Ecological Applications 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 R-00505 Gholz, H. L.; Kranzynski, L. M. and Volk, B. G. Disappearance and Compressibility of Buried Pine Wood in a Warm Temperate Soil Environment. Ecological Applications 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 Intercep- tion in Pinus elliottii Stands of North Florida. Ecology/Ecological Monographs R-00741 Hall, P. M. Dangerous to Man, Fact or Fiction? A Record of an Attack by a Black Caiman (Melanosuchus niger) in Guyana. Journal of Herpetology 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 90 Forestry R-00732 Hodge, G. R.; Schmidt, R. A. and White, T. L. Substantial Realized Gains from Mass Selection of Fusiform Rust-Free Trees in Highly Infected Stands of Slash Pine. Southern Journal of Applied Forestry R-00372 Jacobson, S. K. An Evaluation Model for Developing and Implementing Conservation Education Programs: Case Studies from Belize and Costa Rica. Journal of Conservation Biology R-00303 Kantola, A. T. and Humphrey, S. R. Habitat Use by Serman's Fox Squirrel (Sciurus niger shermani) in Florida. Journal of Mammology R-00602 Kinnaird, M. F. Competition for a Forest Palm: Use of Phoenix reclinata by Human and Non- Human Primates. Conservation Biology 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 R-00714 Popp, M. P.; Johnson, J. D. and Massey, T. L. Stimulation of Resin Flowin Slash and Loblolly Pine by Bark Beetle Vectored Fungi. Canadian Journal of Forest Research R-00575 Warrag, F. I.; Lesney, M. S. and Rockwood, D. L. Micropropagation of Field Tested Superior Eucalyp- tus grandis Hybrids. New Forests R-00334 Webb, R. S. Cross-Sectional Life Table Analysis of Fusiform Rust Incidence and Severity Among Slash Pine Plantations in North Florida. Applied Agricultural Research R-00360 White, T. L. and Hodge, G. R. Indirect Predic- tion of Genetic Values. Silvae Genetica Non-Refereed Publications: N-00163 Marion, W. R. and King, T. P. Establishing Wildlife Habitat Features on Phosphate Mined Lands. 1990 National Symposium on Mining N-00033 Rockwood, D. L. and Geary, T. F. Growth of 19 Exotic and Two Native Tree Species on Organic Soils in Southern Florida. Symposium on Exotic Pest Plants N-00112 Schmidt, R. A. and Allen, J. E. Temporal and Spatial Variation Affecting Fusiform Rust Hazard Prediction in Slash Pine Plantations in the South- eastern United States. Proceedings-IUFRO "Rust of Pines" Research Grants: Abt R C. Impact Of The 1990 RPA Projections On The "South's Fourth Forest" State Projections. U S Dept Of Agriculture. 08/21/89-02/28/91. $7,500 Abt R C. Information Assistance & Forest Landowner Behavior. U S Dept Of Agriculture. 06/01/90- 05/31/91. $15,000 Duryea M L. Physiological & Genetic Mechanisms Controlling Growth Rate In Slash Pine. State Of Georgia. 08/01/89-07/31/90. $7,815 Gholz H L. Interaction Of Climate & Nutrition On Forest Production. National Science Foundation. 03/01/90-02/28/92. $68,691 Gholz H L. Measuring & Modelling The Productivity Of Pine Forest Ecosystems. National Science Founda- tion. 04/25/90-04/30/91. $44,802 Gholz H L. The Development Of A North Florida Location As An Intensive Forest Study. U S Dept Of Agriculture. 01/01/90-06/30/91. $133,006 Huffman J B. Hickson Wood Treatment Test Plots. Hickson Corporation. 12/01/89-11/30/94. $3,750 Huffman J B. Koppers Wood Treatment Test Plots. Koppers Company. 12/01/89-11/30/94. $3,750 Johnson J D. Ethylene's Role In The Induced Host Response To Bark Beetles & Vectored Fungi. U S Dept Of Agriculture. 08/01/89-07/31/91. $200,000 Johnson J D. Ethylene Induction Of Host Resistance To Southern Pine Beetle. US Dept Of Agriculture. 07/01/89-06/30/91. $80,000 Johnson J D. Response Of Slash Pine Families To Acidic Precipitation & Ozone In N. Florida Phase III. U S Dept Of Agriculture. 01/01/90-06/30/91. $269,000 Jokela E J. Cooperative Research In Forest Fertilization. Fl Forestry Association. 01/01/90-12/31/90. $75,700 Mace A C. Osmose-wood Treatment Test Plots. Osmose Wood Preserving. 08/01/87-07/31/91. $375 Reid C P. Development Of Microbial Siderophores As Iron Carriers For Higher Plants Production. Bard. 08/25/87-02/25/91. $15,000 Schmidt R A. A Partnership For Fundamental Research On Pine Productivity. Union Camp Corporation. 01/01/90-12/31/90. $50,000 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Forestry 91 Schmidt R A. A Partnership For Fundamental Research On Pine Productivity. Westvaco Corporation. 01/01/90-12/31/90. $50,000 Schmidt R A. A Partnership For Fundamental Research On Pine Productivity. Champion International Corp. 01/01/90-12/31/90. $50,000 Schmidt R A. A Partnership For Fundamental Research On Pine Productivity. Container Corp Of America. 01/01/90-12/31/90. $50,000 Schmidt R A. Integrated Forest Pest Management Cooperative. Fl Forestry Association. 07/01/90- 06/30/91. $54,600 White T L. Cooperative Forest Genetics Research Program. Fl Forestry Association. 07/01/90- 06/30/91. $85,500 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 92 Fisheries and Aquaculture FISHERIES AND AQUACULTURE 2 DONALD E. CAMPTON, JR. Asst Prof, Fish Genetics 2 DANIEL E. CANFIELD JR Prof, Limnology 2,3 FRANK A. CHAPMAN Vis Asst Prof, Fishwater- Estuarine Habitats 2,3 CHARLES E. CICHRA Asst Prof, Fish Ecology and Population Dynamics 4 JAMES P. CLUGSTON Adj Prof, Fish and Wildlife 4 NICHOLAS A. FUNICELLI Adj Asst Prof, Fisheries Biology 4 CARTER R. GILBERT Adj Assoc Prof, Ichthyology 4 CHURCHILL B. GRIMES Adj Assoc Prof, Marine Ecology 4 WILEY M. KITCHENS Adj Assoc Prof, Wetland Systems Ecology 1,2 WILLIAM J. LINDBERG Asst Prof, Marine Crustacean Biology 4 MICHAEL J. MACEINA Adj Asst Prof, Limnology and Fisheries 4 ROBERT Q. MARSTON Adj Prof, Fisheries 4 FRANK G. NORDLIE Adj Prof, Limnology 2 EDWARD J. PHLIPS Asst Prof, Marine Biomass & Microbial Physiology & Biochemistry 4 CURTIS D. POLLMAN Adj Asst Prof, Limnological Modeling ,2 CLAIRE L. SCHELSKE Eminent Scholar, Water Resources 1,2,3 JEROME V. SHIREMAN Chair and Prof 4 LUCIAN M. SPRAGUE Adj Prof, Genetic Fishery Research CRIS Projects: FOR03019 Ecologic Studies of the Littoral and Pelagic Systems of Lake Okeechobee J. V. Shireman D. E. Canfield E.J. Phlips R. Francis-Floyd C. E. Cichra FOR03029 Tests of Stratigraphic Correlation and Nutrient Accumulation Hypotheses in Lake Erie and Lake Ontario C. L. Schelske FOR03030 Agreement to Study Phytoplankton-Nutrient Interactions in Lake Apopka C. L. Schelske FOR03028 Toward Forecasting Stone Crab Recruitment and Environmentally Induced Year-Class Strength W. J. Lindberg T. M. Bert C. E. Cichra FOR03033 Population and Quantitative Genetics of Fish and Shellfish in Florida D. E. Campton Refereed Publications: R-00037 Campton, D. E. and Mahmoudi, B. Genetic Variation and Population Structure of Striped Mullet (Mugil cephalus) in Florida. Copeia R-00087 Campton, D. E. Application of Biochemical and Molecular Genetic Markers to Analysis of Hybrid- ization. Applications/Electrophoresis & Isoelectric Focusing on Fisheries Management. R-00346 Canfield, D. E.; Hoyer, M. V. and Duarte, C. M. An Empirical Metho for Characterizing Standing Crops of Aquatic Vegetation. Plant Management R-00564 Hoyer, M. V. and Canfield, Jr., D. E. Stream Fertility and Related Total Fish Standing Crops. Water Resources Bulletin R-00017 Opuszynski, K. and Shireman, J. V. Food Passage Time and Daily Ration on Bighead Carp, Aristichthys nobilis Rich., Kept in Cages. Environ- mental Fish Biology R-00453 Phlips, E. J. and Zeman, C. Photosynthesis, Growth and Nitrogen Fixation by Epiphytic Forms of Filamentous Cyanobacteria from Pelagic Sargas- sum. Bulletin of Marine Science R-00452 Phlips, E. J.; Monegue, R. and Aldridge, F. Cyanophages which Impact Bloom-Forming Cyanobacteria. Aquatic Plant Management Society R-00180 Stauffer, R. E. and Canfield, Jr., D. E. Hydrology and Alkalinity Regulation of Soft Floridian Waters: An Integrated Assessment. Water Resources Research Research Grants: Canfield D E. An Assessment Of Water Quality In The Lakes Of North & Central Florida. Dept Of 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction Fisheries and Aquaculture 93 Environmental Regulati. 01/30/90-03/30/91. $72,275 Canfield D E. Characterization Of Fish Population In Florida Lakes. Fl Turf-grass Association. 09/18/89- 06/01/90. $5,000 Canfield D E. Riverine Fisheries. Water & Air Research. 05/01/89-08/31/89. $3,392 Canfield D E. Florida Lakewatch Water Quality Data Collection Pilot Program. Water Management Districts. 02/05/90-09/30/90. $20,325 Cichra C E. Evaluation Of Aquaculture Effluents. Dept Of Agricul & Consumer Ser. 01/01/90-12/07/90. $40,859 Lindberg W J. Suwannee Artificial Reef Construction. Dept Of Natural Resources. 09/01/89-10/31/90. $300,000 Lindberg W J. An Analysis Of Bivalve Culture Effluent. Sierra Club-Fl. 06/01/90-12/31/90. $500 Lindberg W J. Toward Forecasting Stone Crab Recruit- ment & Year Class Strength (r/lr-b-25). U S Dept Of Commerce. 04/01/89-03/31/91. $59,600 Schelske C L. A Paleolimnological Analysis Of Lake Tsala Apopka Citrus County Florida. Water Manage- ment Districts. 08/23/89-02/12/90. $8,000 Schelske C L. Lake Seminole Sediment Mapping & Analyses. Water Management Districts. 05/07/90- 05/20/91. $23,000 Shireman J V. Ecological Studies Of The Littoral & Pelagic Systems Of Lake Okeechobee. Water Management Districts. 04/15/88-10/30/90. $966,639 Shireman J V. Early Life History & Relative Abundance Of Sturgeon In The Lower Suwannee River, Florida. U S Dept Of Interior. 09/29/87-10/31/90. $40,423 Shireman J V. A Community Finfish Study To Determine The Impact Of Exotic Fishes On Native Fishes. U S Dept Of Interior. 09/01/86-09/30/90. $46,395 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction 94 Wildlife and Range Sciences WILDLIFE AND RANGE SCIENCES 4 JAIME A. COLLAZO Adj Asst Prof, Ecological Research 1,2 MICHAEL W. COLLOPY Chair & Prof, Raptor & Wading Bird Ecology 4 MARK C. CONNER Adj Asst Prof, Population Ecology 4 ALLAN L. EGBERT Adj Assoc Prof, Wildlife Ecology 1,2 JOHN F. EISENBERG Ordway Prof, Ecosystem Conservation 4 LAWRENCE R. FRANZ, JR. Adj Assoc in Ecology 4 PETER C. FREDERICK Adj Asst Prof, Wetland Ecology 1,2 LAWRENCE D. HARRIS Prof, Wildlife Land- scape Design 2,3 CRAIG N. HUEGEL Asst Ext Sci, Urban Wildlife Management 4 STEPHEN R. HUMPHREY Adj Prof, Wildlife Ecology 4 FREDERIC W. KING Adj Prof, International Conservation Strategies 1,2 RONALD F. LABISKY Prof, Wildlife Ecology & Management 4 LYNN W. LEFEBVRE Adj Asst Prof, Marine Mammals 4 CLIFFORD E. LEWIS Adj Assoc Prof, SE Forest Experiment Station, Forest-Range Management 4 JEFFREY L. LINCER Adj Assoc Prof, Wildlife Ecology 2,3 WAYNE R. MARION Assoc Prof, Avian Ecology 2,3 FRANK J. MAZZOTTI Asst Ext Sci, Urban Wildlife Management Broward County 4 JAMES D. NICHOLS Adj Assoc Prof, Wildlife Biology 4 THOMAS J. O'SHEA Adj Assoc Prof, Mammalian Behavior and Ecology 4 HENRY F. PERCIVAL Adj Assoc Prof, Florida Cooperative Fish & Wildlife Research Unit, Wetlands Wildlife 4 GEORGE V. POWELL Adj Asst Prof, Wetland Bird Research 4 JOHN G. ROBINSON Adj Prof, Zoological Society 2,3 JOSEPH M. SCHAEFER Asst Prof, Urban Wildlife Management 4 STUART D. STRAHL Adj Asst Prof, Zoologist 4 THOMAS T. STRUHSAKER Adj Prof, Verte- brate Ecology 2,3 GEORGE W. TANNER Assoc Prof, Range Ecology & Management CRIS Projects: FOR02817 Wildlife and Growth Management in Florida C. N. Huegel F. J. Mazzotti J. M. Schaefer Refereed Publications: R-00116 Frederick, P. C. and Collopy, M. W. Nesting Success of Five Ciconiiform Species in Relation to Water Conditions in the Florida Everglades. The Auk R-00178 Frederick, P. C. and Collopy, M. W. Researcher Disturbance in Colonies of Wading Birds: Effects of Visit and Egg-Marking on Reproductive Param- eters. Colonial Waterbirds R-00117 Frederick, P. C. and Collopy, M. W. The Role of Predation in Determining Reproductive Success of Colonially Nesting Wading Birds in the Florida Everglades. The Condor R-00439 Frederick, P. C.; Dwyer, N.; Fitzgerald, S. and Bennetts, R. E. Relative Abundance and Habitat Preferences of Least Bitterns (Ixobrychus exilis). Florida Field Naturalist R-00610 Hoyer, M. V. and Canfield, Jr., D. E. Limnologi- cal Factors Influencing Bird Abundance and Species Richness on Florida Lakes. Lake and Reservoir Management R-00114 Smallwood, J. A. Age Determination of Ameri- can Kestrels: A Revised Key. Journal of Field Ornithology 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 Research Grants: Bolten A B. Sea Turtle Populations In The Eastern Gulf Of Mexico. U S Dept Of Interior. 07/18/89- 06/30/94. $32,095 2 Research 3 Extension 4 Other UF or Cooperating Agency 1 Resident Instruction Wildlife and Range Sciences 95 Bolten A B. Effect Of Marine Pollution On Juvenile Pelagic Sea Turtles. U S Dept Of Interior. 03/01/88-05/01/93. $44,372 Bolten A B. Sea Turtles Inhabiting The King's Bay St. Mary's Entrance Channel: Distribution. U S Dept Of Interior. 09/01/88-09/30/93. $36,559 Bolten A B. Effects Of Artificial Lighting On Nesting Adult & Hatchling Sea Turtles. U S Dept Of Interior. 03/17/89-03/30/94. $45,070 Bolten A B. Distribution & Population Structure Of Sea Turtles Inhabiting The Cape Canaveral. U S Dept Of Interior. 12/15/87-06/30/90. $40,752 Collopy M W. Status Distribution & Requirements Of The Swallow-tailed Kite (Elandoides forficatus). Game & Fresh Water Fish Commis. 09/11/87- 06/30/90. $17,814 Collopy M W. Population Dynamics Of Southern Bald Eagles In Florida. US Game & Fresh Water Fish Commis. 08/28/87-06/30/91. $47,600 Collopy M W. A Cooperative Urban Wildlife Manage- ment Program. US Game & Fresh Water Fish Commis. 01/06/86-12/31/90. $200,000 Collopy M W. Nesting Ecology Habitat Use & Manage- ment Of The Southern Bald Eagle On Merritt Island. Nat Fish & Wildlife Foundation. 11/22/89- 11/21/90. $32,482 Harris L D. Greenlining & The Future Of Florida's Parks. Dept Of Natural Resources. 06/20/90-12/15/90. $18,376 Kitchens W M. Fish Community Structure In Some Naturally Acid Florida Lakes. US Dept Of Interior. 11/15/88-07/31/90. $1,600 Labisky R F. Population Ecology & Management Of White-tailed Deer In The Osceola National Forest. Game & Fresh Water Fish Commis. 07/01/89- 12/31/90. $35,400 Labisky R F. Population Dynamics Of Whitetailed Deer In The Big Cypress National Preserve. U S Dept Of Interior. 09/28/88-03/01/92. $112,000 Lefebvre L W. Manatee Movements & Foraging In Cumberland Sound & Adjacent Waters. U S Dept Of Interior. 11/21/88-12/31/90. $6,308 Marion W R. Distribution & Status Of Redcockaded Woodpecker Colonies At Eglin Air Force Base Fla. U S Dept Of Interior. 01/17/90-09/30/92. $434,625 Marion W R. Effects Of Herbicide Hexazinone On Habitats For Bob-whites, Wild Turkeys & White-tailed Deer. U S Dept Of Agriculture. 05/ 01/90-05/01/91. $24,160 Mazzotti F J. Monitoring American Crocodiles At The Turkey Point & Fort Lauderdale Power Plant Sites. Fl Power & Light Company. 01/01/88-12/31/89. $38,286 Mcivor C C. Ecology Of Fish & Macroinvertebrate Populations In Mangrove Habitat In South Florida. Nat Audubon Society. 08/11/89-08/31/91. $24,000 Percival H F. Habitat Resources Availability & Use By Migratory Shorebirds At Cabo Rojo Salt Flats. U S Dept Of Interior. 08/01/89-08/01/90. $5,000 Percival H F. Land Management Practices In The Montane Region Of Puerto Rico: Impact & Implications. U S Dept Of Interior. 08/01/88-12/ 31/92. $15,000 Percival H F. Dynamics Of An Exploited Natural Popula- tion: An Experimental Approach. U S Dept Of Interior. 09/26/89-08/31/94. $60,000 Portier K M. Statistical Aspects Of Line Transect Sam- pling. US Dept Of Interior. 07/01/88-12/31/90. $37,290 Schaefer J M. Hardwood Hammock Fragments: Relation- ships Between Human Population Growth & Wildlife. Game & Fresh Water Fish Commis. 07/18/89-06/30/93. $96,446 Schaefer J M. The Econlockhatchee River Management & Protection Plan For Wildlife. Water Manage- ment Districts. 08/16/89-05/15/90. $12,500 Smallwood J A. Nest Box Program For Management Of The Southeastern American Kestrel In Florida. Game & Fresh Water Fish Commis. 12/11/89- 06/30/93. $41,906 Struhsaker T T. The Impact Of Canoe Felling On The Riverine Forests & Two Species Of Endangered Primates. World Wildlife Fund. 05/01/90- 04/30/91. $5,000 Sunquist M E. A Study Of Genetic Variations In Sri Lankan Leopards. Smithsonian Institute. 12/23/88- 12/28/89. $3,373 Tanner G W. Small Mammal & Plant Responses To The Rehabilitation Of A Dry Prairie Grassland Association. Game & Fresh Water Fish Commis. 08/28/87-06/30/90. $9,480 2 Research 3 Extension 4 Other UF or Cooperating Agency I Resident Instruction 96 Wildlife and Range Sciences Tanner G W. Application Of A Habitat Succession Model For The Wetland Complex Of The Savannah. US Dept Of Interior. 09/15/85- 12/31/90. $42,355 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 |