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GULF COAST
RESEARCH AND EDUCATION CENTER
BRADENTON, FLORIDA
Ornamental Open House
May 16,1984
I .- 1
L--A 1.
GCREC Research Report GC-1984-4
Gary J. Wilfret, Editor
CITY
TA MPA
BAY
GULF
O F
MEXI CO
LOCATION OF G. C. R. E. C.
BRADENTON FLORIDA
1 INCH= 5 MILES
GULF COAST
RESEARCH AND EDUCATION CENTER
BRADENTON, FLORIDA
Ornamental Open House
institute of Food and Agricultural Sciences
University of Florida, Gainesville
Illustration: Jennifer Johnson
Production: Editorial Department, IFAS
TABLE OF CONTENTS
PAGE
Title Ornamental Open House ........................................... 1
Table of Contents ....................................................... 2
Introduction ....................................... ..................... 3
History of The Gulf Coast Research & Education Center..................... 4
Current List of Program Leaders ........................................ 6
List of Career Service Staff ............................................ 8
Farm Map and Building Key ............................................... 10
Saran House Overlay ..................................................... 12
Experiments in Progress:
Effect of Rhizoctonia and Pythium on Caladiums ..................... 13
Chemical Control of Ascochyta Blight on Chrysanthemums ............. 14
Fungicides for Poinsettia Scab Control ............................. 15
New Insecticides and Miticides for Chrysanthemums .................. 16
Pseudomonas cichorii on Gerbera ..................................... 17
Caladium Seedlings in Containers ................................... 18
Evaluation of Nutricote Fertilizer ................................. 19
Poinsettia Bract Necrosis Prevention by Medium Amendments .......... 19
Evaluation of Spray-type Potted Chrysanthemums ..................... 20
Evaluation of Garden Chrysanthemums in Small Pots .................. 21
Chrysanthemum Cutting Establishment ................................ 22
Emitter Spacing in Chrysanthemum Production ....................... 23
Lisianthus Production Practices .................................... 24
Evaluation of Ornamental Tomatoes in Pots .......................... 24
Evaluation of Petunia Cultivars .................................... 25
Poinsettia Bract Necrosis Prevention by Fertilization .............. 26
Poinsettia Microelement Imbalances ................................. 26
Poinsettia Lateral Branch Abscission Prevention .................... 27
Forcing Achimenes .................................................. 27
Production Practices for Tissue Cultured Caladiums ................. 28
Storage of Caladium Tubers ........................................ 28
Poinsettia Growth Regulators ...................................... 29
Leafminer and Nematode Control ..................................... 30
Cation Balance and Calcium Deficiency of Poinsettia ............... 31
Micronutrients on Poinsettia ....................................... 32
Effect of Lime, Magnesium and Aluminum on Hibiscus ................. 32
Effect of Nutrition on Fusarium Wilt of Carnation ................. 33
Annual Plant Evaluations .......................................... 34
Evaluation of Herbicides on Gladiolus Cormels ...................... 35
Effect of Cypressvine Population on Gladiolus ..................... 36
Effect of Cypressvine Duration in Gladiolus ........................ 37
Evaluation of Herbicides on Statice ............................... 38
Gladiolus Seedling Evaluation and Breeding ........................ 39
List of Contributors to Research Programs .............................. 40
INTRODUCTION
On behalf of the faculty and staff, I extend to each of you a most cordial
welcome to the Gulf Coast Research and Education Center at Bradenton. This
Center was initiated in 1925 as a one-man tomato research operation in Palmetto
and the first ornamental programs began about 17 years later. This Center,
with affiliated agriculturall Research Centers located in Dover and Immokalee,
Florida, is a Research and Education unit of the University of Florida's
Institute of Food and Agricultural Sciences.
In Bradenton we have 14 scientists from various disciplines of training who
participate in ornamental plant research programs. Each scientist also holds
an affiliate appointment with his subject matter department at the University
of Florida. This combination of a broad base of research disciplines, industry
contacts, and an excellent faculty makes our interdisciplinary cooperative
team approach to research programs far more productive than could otherwise
be accomplished with limited investment in independent programs.
An integral part of the overall mission of this Center deals directly with
the ornamental industries in Florida through research programs to 1) develop
new or improve technology for more efficient production, handling and utili-
zation of ornamental crops; 2) improve quality of products made available to
the public through breeding and cultivar evaluations; 3) develop technology
and practices to reduce both energy consumption and environmental pollution
without sacrificing quality during production and thereby enhance man's
environment; 4) develop biological and mechanical pest management concepts;
5) develop improved technology on uses of air, water and land resources,
solar energy and energy conservation practices in greenhouse and agricultural
production; 6) develop information for all Florida growers to compete effec-
tively with other geographic areas of the nation and world; 7) advance basic
knowledge of the various scientific disciplines represented by the faculty;
and 8) assist the cooperative extension service, departments in the College
of Agriculture and other Research Centers with extension, educational train-
ing, and cooperative research programs for the benefit of producers, consumers
and students.
Information presented in this publication summarizes the active research
projects under way this season. We sincerely appreciate your interest and
support of these research programs and continuously solicit your suggestions
for improvement and ideas of industry needs from our research and extension
programs.
Will E. Waters, Center Director
HISTORY OF THE GULF COAST RESEARCH AND EDUCATION CENTER
Gulf Coast Research & Education Center originated in the fall of 1925
with the construction of the Tomato Disease Laboratory.
Tomato Disease Laboratory: In 1925 a 20 acre tract of Manatee County-owned
property in Palmetto was made available with the cooperation of the Manatee
Board of County Commissioners. Operational and construction money and
equipment were supplied by local growers. Primary objective of the laboratory
was to formulate a control of nailhead spot of tomato. Later studies
emphasized the breeding for resistance to Fusarium wilt and the control of
Tobacco mosaic on tomatoes. In 1937, with expansion of the vegetable industry
in Manatee County and surrounding areas, the State Legislature authorized
new facilities for the research program.
Vegetable Crops Laboratory: In August, 1938, the Manatee County
Commissioners donated 80% of the purchase price of a 106 acre tract on the
east side of Bradenton. This expanded facility and diversified vegetable
crop research led to the establishment of the Vegetable Crops Laboratory.
Following this relocation, horticultural, entomological, and soil studies
were initiated on tomatoes, peppers, lettuce, sweet corn, and other
vegetables. Since the laboratory was located in a region where gladiolus
were grown for winter cut flowers, the scope of the laboratory was further
broadened in 1942 to include disease problems confronting gladiolus growers.
Gulf Coast Experiment Station: In March, 1957, at a meeting of the
State Board of Control, the Vegetable Crops Laboratory was given the status
of a branch station and was renamed The Gulf Coast Experiment Station.
Investigations were begun on chemical weed control, nematodes, and other
soil-borne pests. In 1954 the ornamental phase was broadened to include
chrysanthemums and other commercial cut-flowers. In the late 1950's it
became apparent that the facilities on the outskirts of Bradenton were no
longer adequate for the research program. In 1959 a 200 acre tract was
acquired 8 miles east of Bradenton along the Oneco Road. All of the
vegetable experimental field programs were moved to this new location.
In 1965, upon completion of the construction of office and laboratory
facilities, farm buildings, greenhouses, and a residence, all research
programs were conducted on this new farm.
Agricultural Research & Education Center-Bradenton: In 1971 the Gulf
Coast Experiment Station was renamed Agricultural Research and Education
Center to emphasize the programs of both research and education.
Gulf Coast Research & Education Center: In 1984, to reflect the
regionality of the research and education programs at Bradenton, IFAS and
the State Board of Regents renamed the center the Gulf Coast Research &
Education Center.
Active programs are in progress on production problems associated
with vegetables and ornamentals grown on the sandy soils of Florida.
The Gulf Coast Research & Education Center has administrative and
research supervision over two satellite stations: ARC-Immokalee (formerly
the South Florida Field Laboratory) and ARC-Dover (formerly the Strawberry
and Vegetable Field Laboratory). The former center specializes in vegetable
nutrition and culture and in pasture research while the latter is the hub
of strawberry research in Florida, including breeding, horticultural, and
pathological studies.
CURRENT LIST OF PROGRAM LEADERS, APPOINTMENT DATE AND AREA OF SPECIALIZATION
Gulf Coast Research and Education Center
Bradenton, Florida
Waters, Will E., 1960, Horticulturist and Center Director Administration, soil
and plant nutrition, and ornamental horticulture.
Burgis, D. S., 1946, Horticulturist, Emeritus Vegetable production, weed
control and growth regulators.
Chambliss, C. G., 1976, Extension Agronomist Develop extension educational
programs and cooperative research programs on forage production for south
Florida.
Csizinszky, A. A., 1976, Associate Horticulturist Production systems, crop
management and post-harvest studies of vegetable crops.
Engelhard, A. W., 1966, Plant Pathologist Etiology and control of diseases of
ornamental crops.
Geraldson, C. M., 1951, Soils Chemist Soil nutritional problems and their
relationship with cultural methods for vegetable production.
Gilreath, J. P., 1981, Assistant Horticulturist Weed control of vegetable
and ornamental crops.
Harbaugh, B. K., 1975, Associate Ornamental Horticulturist Systems for the
production, harvesting and marketing of ornamental crops.
Jones, J. B., 1981, Assistant Plant Pathologist Ecology and control of bacterial
diseases of ornamental and vegetable crops.
Jones, J. P., 1958, Plant Pathologist Etiology and control of diseases of
vegetable crops.
Kovach, S. P., 1982, Extension Water Specialist Plan and implement extension
programs dealing with water requirements, water use efficiency and water
quality of.commercial vegetable, ornamental and other crops of south Florida.
Magie, R. O., 1945, Plant Pathologist, Emeritus Etiology and control of
diseases of ornamental crops with emphasis on gladiolus flower and corm
diseases.
Marlowe, G. A., Jr., 1975, Extension Vegetable Specialist Develop extension
education programs and cooperative research on vegetable crops of southwest
Florida.
McGuire, R. G., 1983, Post Doctorate Plant Pathologist Conduct experiments on
the ecology and epidemiology of bacterial diseases of tomatoes and peppers.
Overman, A. J., 1945, Nematologist Etiology and control of nematode problems
on ornamentals and vegetables.
Prevatt, J. W., 1979, Extension Farm Management Economist Develop extension
farm management educational programs in agriculture and cooperative research
on production economics of vegetable and ornamental crops.
Price, J. F., 1978, Associate Entomologist Identification, biology and control
of insects ond mites of ornamental and strawberry crops.
Schuster, D. J., 1975, Associate Entomologist Identification, biology and
control of insects and mites of vegetable crops.
Scott, J. W., 1981, Assistant Geneticist Tomato variety development and genetics
of characters related to tomatoes.
Stanley, C. D., 1979, Assistant Soil Scientist Soil-water relations for
ornamental and vegetable crops.
Wilfret, G. J., 1969, Geneticist Breeding and development of new varieties
of cut flowers and other ornamental crops.
Woltz, S. S., 1953, Plant Physiologist Physiology disorders and diseases of
vegetable and ornamental crops.
Agricultural Research Center Dover, Florida
Albregts, E. E., 1967, Soils Chemist Center administration, production, soil
and plant nutrition of strawberry and vegetable crops.
Howard, C. M., 1967, Plant Pathologist Strawberry breeding and etiology, and
control of strawberry and vegetable diseases.
Agricultural Research Center Immokalee, Florida
Everett, P. H., 1958, Soils Chemist Center administration, soil and plant
nutrition, production and variety development of vegetable crops.
List of Career Service Staff GCREC Bradenton, ARC-Dover, ARC-Immokalee
Office Staff:
Name
Frederick Snyder
Hazel Smith
Nancy Kost
Anne Short
Bonnie Keisacker
Lori Bochat
Mary Lee Huffman
Vacant
Title
Bus. Mgr. I
Staff Asst. I
Senior Sec.
Sr. Sec. (Temp)
Sec. Spec.
Clerk Typ. III
Clerk Typ. III
Clerk Typ. III
Service Staff:
Name
Harold Gillis
Jesteen Watkins
Rod Clements
Charles Pratt
Goodlett Watson
Title
Farm Administrator
Agric. Techn. III
Engineer I
Maint. Supvr. I
Maint. Mechanic
Laboratory Technician Staff:
Agricultural Technician Staff:
Name
Nancy West
Teresa Howe
Laverne Barnhill
Charlotte Bell
Nancy Bumgardner
Patricia Cox
Doris Doyle
Karen Hemmerlein
Pamela Palmer
Karen Pearce
Renata Zalewski
Ann Newsome
Rebecca Burke
Title
Chemist II
Bio.
Bio.
Bio.
Bio.
Bio.
Bio.
Bio.
Bio.
Bio.
Bio.
Bio.
Lab.
Sci. III
Sci. II
Sci. II
Sci. II
Sci. II
Sci. II
Sci. II
Sci. II
Sci. II
Sci. II
Sci. I
Tech. II
Name
Thomas Cline
Debra Brown
Clayton Cook
Karen Fraley
Richard Kelly
Russell Owens
Deanna Reckelhoff
(T) Preston Young
Jim Doty
Kenneth Kiger
Susanne Pelton
Dagmar Taborsky
Title
Agr. Technic.
Agr. Technic.
Agr. Technic.
Agr. Technic.
Agr. Technic.
Agr. Technic.
Agr. Technic.
Agr. Technic.
Agr. Technic.
Agr. Technic.
Agr. Technic.
Agr. Technic.
Tractor Driver Staff:
Labor Staff:
Name
Willie Campbell
OPEN
Title
Heavy Equip Op.
Motor Veh. Op.
Data Processing Staff:
Name
Greg King
Title
Com. Op. II
Name
Feliciana Diaz
Michael Gass
Emma G. Jones
Lula Mae McPherson
Hector Ortiz
Mary Williams
Custodial Staff:
Name
Naydane Thompson
Vacant
Title
Laborer
Laborer
Laborer
Laborer
Laborer
Laborer
Title
Custodial Worker
Custodial Worker
Sup.
III
III
III
III
III
III
III
II
II
II
II
ARC-Dover Staff:
Name
Annie Turgeau
Alicia Griffin
Larry Smith
Michele Thompson
Marta Hinton
Frederick Wenzel
Title
Secretary
Bio. Sci. II
Agr. Technic. III
Agr. Technic. III
Agr. Technic. II
Agr. Technic. II
ARC-Immokalee Staff:
Name
Title
Verna Smith
Karen Armbrester
W. M. Littlefield
Sidney Driver
Bernard Lancaster
Clerk Typ. III
Bio. Sci. II
Agr. Technic. III
Agr. Technic. II
Motor Veh. Opr.
S 353
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Building -ode
Numerical
code Building Description
Office and Laboratories
Orn. Polypropylene Shadehouse
Ornamental Sawtooth House
Chemical Storage Building
Golf Cart Storage
Nematology Greenhouse
Variety Evaluation Greenhouse
Orn. Horticulture Greenhouse
Vegetable Entomology Greenhouse
Solar Greenhouse
Tomato Breeding Greenhouse
ORB Polypropylene Shadehouse
Plant Production House
Tomato Grading Room
Speedling Tray Storage Room
Fertilizer Storage Room
Speedling Transplant House
Pathology Greenhouse
Ornamental Entomology Greenhouse
Herbicide Greenhouse
Orn. Breeding & Horticulture Greenhouse
Orchid Breeding Greenhouse
Physiology Greenhouse
Chemical Weighing Building
IPM Headhouse
Mist House
Steam Facility
Air Pollution Headhouse
Air Pollution Greenhouse
Pesticide Storage & Growth Chambers
Headhouse, Laboratories & Cold Rooms
Headhouse (under construction)
Greenhouse (under construction)
Tomato Disease Screening Greenhouse
Potting Shed and Media Storage
Bulk Storage Bins
Greenhouse (under construction)
Equipment Storage Shed
Supply Storage Shed
Carpentry & Engineering Shop
Cold Storage Room
Mechanic Shop
Paint & Body Shop (under construction)
-12-
SARAN HOUSE
\ /
Chrysanthemum Aphid
and Mite Control B
Bacterial Blight of
Gerbera D
N
-- N
Ascochyta Etiology and
A Control on Chrysanthemum
Poinsettia Scab Etiology
C and Control
Caladium Seedling Evaluation
F E Poinsettia Stock Plants
Chrysanthemum Growth
Regulators
6" Spray Pot Chrysanthemum
Cultivar Evaluation
4" Garden Chrysanthemum
Cultivar Evaluation
Shade Effects on Various
Pot Ornamentals
H G Pot Chrysanthemum Nutrition
Poinsettia Nutrition
S
-13-
Title: Effect of Rhizoctonia and Pythium on 6 Cultivars of Caladium
Project: BRA02210
Researcher: Arthur W. Engelhard
Purpose: De.armine the effect on growth and development of 6 cultivars
of caladiums when inoculated with cultures of Rhizoctonia and
Pythium obtained from caladium
Variables:
Cultivars:
Candidum
Frieda Hemple
Carolyn Whorton
Pathogens:
Rhizoctonia
Red Flash
Pink Beauty
Fannie Munson
Pythium
Details:
Planted 1 chip/4" pot on 12/29/83.
Inoculated by inserting 8 pathogen infested oat seeds in a circle
around each caladium chip.
Results:
In a previous experiment, Rhizoctonia had no significant effect
on weights of tubers produced.
-14-
Title: Chemical Control of Ascochyta Blight on Chrysanthemums
Project: BRA-02210
Researcher: Arthur W. Engelhard
Purpose: To evaluate new fungicides for control of Ascochyta blight and
to determinetheir phytotoxicity to chrysanthemum foliage and
flowers; also to look at the performance of Tilt@ (Banner@) in
an extended schedule.
Variables:
Cultivars:
Bright Yellow May Shoesmith
Giant #4 Indianapolis Yellow
Chemical Treatments:
Treatment
Control water
Tilt (CGA 64250) 3.6E-A (weekly)
Banner (CGA 64250) 1.1EC (weekly)
Tilt (every 2 weeks)
Banner (every 2 weeks)
Benlate 50W + Manzate 200 80W
Benlate 50W + Daconil 75W
Benlate 50W + Manzate 200 80W
Benlate 50W + Daconil 75W
Zyban 75W (15% thiophanate M + 60% mancozeb)
Form-A-Turf (30.35% formaldehyde)
Ornalin 50W
Ornalin 50W
Chipco 26019 50W
Chipco 26019 50W
Rate
lb. or oz/100 gal.
5 liq. oz
16.4 liq. oz
5 liq. oz
16.4 liq. oz
0.25 + 0.75 Ib
0.25 + 0.75 lb
0.25 + 1.0 lb
0.25 + 1.0 lb
1.5 lb
1.0 liq. oz
1.5 lb
1.0 lb
1.5 lb
1.0 lb
Experimental Data:
Planted: 2/23/84
Inoculated: 3/20/84
Weekly fungicides started: 3/23/84
Results:
Tilt, Ornalin, and Chipco gave good disease control last season.
-15-
Title: Fungicides for Poinsettia Scab Control
Project: BRA-02210
Researcher: Arthur W. Engelhard
Purpose: To identify chemicals which will control poinsettia scab and
not leave an unsightly residue on the foliage.
Variables:
Plot Rate
no. Treatment oz or lb/100 gal
1 Control water
2 Tilt (CGA 64250) 3.6E-A (weekly)
3 Banner (CGA 64250) 1.1EC (weekly)
4 Tilt (bi-weekly)
5 Banner (bi-weekly)
6 Benlate 50W + Manzate 200 80W
7 Benlate 50W + Daconil 75W
8 Benlate 50W + Orthocide 50W
9 Benlate 50W + Manzate 200 80W
10 Zyban 75W
11 Kocide 101
12 Kocide 101
13 Benlate 50W + Manzate 200 80W + Aqua-Gro
14 Benlate 50W + Manzate 200 80W + Ortho X-77
15 Benlate 50W + Manzate 200 80W + Triton X-100
16 Benlate 50W + Orthocide 50W + Aqua-Gro
17 Benlate 50W + Orthocide 50W + Ortho X-77
18 Benlate 50W + Orthocide 50W + Triton X-100
19 Kocide 101 + Aqua-Gro
20 Kocide 101 + Ortho X-77
21 Kocide 101 + Triton X-100
Experimental Data:
Planted (rooted cuttings): 2/23/84 (into 3" pots)
Set in field: 3/13/84
5 liq. oz
16.4 liq. oz
5 liq. oz
16.4 liq oz
0.25 + 0.75 lb
0.25 + 0.75 lb
0.25 + 1.0 lb
0.25 + 1.0 lb
1.5 lb
2.0 lb
1.5 lb
0.25 + 0.75 lb
0.25 + 0.75 lb
0.25 + 0.75 lb
0.25 + 0.75 lb
0.25 + 0.75 lb
0.25 + 0.75 .lb
1.5 lb + 4 oz
1.5 lb + 4 oz
1.5 lb + 4 oz
-16-
Title: New Insecticides and Miticides for Chrysanthemums
Project: BRA-01668
Researcher: J. F. Price
Purpose: To evaluate several new insecticides and miticides for usefulness
in the commercial flower industry in Florida. Pesticides that
would control leafminers, spider mites and beet armyworms are
featured.
Variables:
Pesticides under evaluation:
A. Untreated check
B. Avid (avermectin or MK 936)
C. Larvin
D. DPX 45893
E. FMC 54800
F. SD 204523
G. Trigard
H. Mavrik
Experimental Data:
A. 'Polaris' cultivar chrysanthemums
B. Planted rooted cuttings on 14 February
C. Pinched to ca. 3 stems on 22 February
D. Long days provided until 12 March
E. Began weekly applications of experimental treatments 2 April
Results:
None available at time of publication
-17-
Title: The effect of Pseudomonas cichorii on Crown Rot Development
of Gerbera
Project: BRA-01668
Researcher: Jeffery B. Jones and Gary J. Wilfret
Purpose: "o determine if injection of P. cichorii into the leaf, stem,
or crown will encourage crown rot development.
Variables:
Pathogen Treatment (4):
100 Leaf Injection
200 Petiole Injection
300 Crown Injection
400 Control
Cultivars (4):
1 TropiGold
2 SC510-OX
3 SC314-OX
4 SC404-OX
Replications 4: A, B, C, D
Experimental Data: Planted (2 x 2 seedlings): December 16, 1983
Inoculated: February 28, 29, 1984 (Bacterial Suspension)
Data Collected: Weekly Flower fields
Disease Severity
-18-
Title: Caladium Seedlings in Containers
Project: BRA-02352
Researcher: Gary J. Wilfret
Purpose: To evaluate caladium seedlings for the inheritance of
various leaf, petiole, and tuber characteristics when
grown in 6" pots in the saran house.
Variables:
Crosses that are being grown:
Candidum x Candidum Jr.
Candidum Selfed
Candidum x White Queen
White Queen Selfed
Candidum Jr. x Red Frills
White Queen x Candidum Jr.
Candidum Jr. x White Queen
Candidum x Carolyn Whorton
Carolyn Whorton x Candidum
Aaron Selfed
Aaron x Red Frills
White Queen x Red Frills
Red Frills x White Queen
Red Frills x Caloosahatchee
Red Frills x Candidum Jr
Carolyn Whorton Selfed
Carolyn Whorton x White Christmas
White Christmas Selfed
White Christmas x Candidum
Poecile Anglais Selfed
Poecile Anglais x Carolyn Whorton
Poecile Anglais x White Christmas
Frieda Hemple x Candidum
Candidum x Poecile Anglais
Poecile Anglais x Candidum
White Christmas x Poecile Anglais
Red Frills Selfed
Candidum Jr. Selfed
Candidum Jr. x Aaron
Aaron x Jubilee
Jubilee Selfed
Location: Saran House, Bay F, Beds 1-3
Note: More caladium seedlings will be available for observation in
the Horticulture Greenhouse and in Block M lands.
-19-
Title: Prevention of Bract Necrosis of Gutbier V-14 Flory Poinsettia
by Management of Medium Amendments
Researcher:: Brent Harbaugh and S. S. Woltz
Purpose: To determine if manipulation of medium amendments can prevent
the development of bract necrosis in V-14 poinsettias.
Variables: V-14 poinsettia plants are being grown in media with various
combinations of dolomite, lime (CaCO3), gypsum, vermiculite,
and magnesium to determine optimum balance of these amend-
ments to prevent bract necrosis.
Cultural Data: V-14 poinsettias planted Jan. 25, pinched Feb. 8, lighted
until Feb. 22, and cycocel applied Feb. 23 and March 14,
1984.
Title: Evaluation of Nutricote Controlled Release Fertilizer
Researcher: Brent Harbaugh
Purpose: To determine the effectiveness of Nutricote, a new resin
coated controlled release fertilizer, for production of
flowering potted plants.
Variables:
'Spirit' chrysanthemums and 'Happy Pot' gerberas are being
grown with Nutricote, Nutricote and liquid feed, Osmocote,
Osmocote and liquid feed or liquid feed alone.
Cultural Data: 'Spirit' chrysanthemums were planted 4 per 6" pot
on March 2, pinched March 9, lighted until March 19.
Gerberas were planted in 41" pots on March 22, 1984.
-20-
Title: Evaluation of Spray-Type Potted Chrysanthemums
Project: BRA-02351
Researcher: Gary J. Wilfret
Purpose: To evaluate 20 of the most recently introduced chrysanthemum
cultivars when grown as center-budded spray types in 6 inch
(15 cm) pots in a polypropylene (25% shade) house.
Variables: Cultivars:
1. Alert
2. Always Pink
3. Cirbronze
4. Circus
5. Echo
6. Excel
7. Fiesta
8. Garland
9. Luv
10. Pert
Experimental Data:
Plants/6" Pot: 4
Replications: 4
Pots/Replication: 6
Pot Spacing: 15 x 15"
Puritan
Quills
Ritz
Songster
Spark
Stripes
Surf
Surfine
Torch
Yellow Torch
Planted: March 2, 1984
Pinched: March 12, 1984
Lights Off: March 19, 1984
Growth Regulator: B-9 @ 2500 ppm
Location: Saran House Bay G, Beds 1-3
-21-
Title: Evaluation of Garden Chrysanthemums Grown in Small Containers
Project: BRA-02351
Researcher: Gary J. Wilfret
Purpose: To evaluate 30 of the most recently introduced garden-type
chrysanthemum cultivars when grown in 4 inch (10 cm) pots
in a polypropylene (25% shade) house
Variables: Cultivars
1. Baby Tears
2. Bandit
3. Brown Eyes
4. Buckeye
5. Cameo
6. Compatriot
7. Debonair
8. Fireside Cushio
9. Fortune
10. Freedom
11. Grenadine
12. Hawkeye
13. Ironsides
14. Jackpot
15. Lancer
Experimental Data:
Plants/4" pot: 1
Replications: 3
Pots/Replication: 8
Pot Spacing: 8 x 8 inches
Liberty
Lipstick
Patriot
Pearls
Penquin
Redcoat
Red Dandy
Revere
Stardom
Starfire
Viking
West Point
Yellow Jacket
Yellow Starlet
Zest
Planted: March 22, 1984
Pinched: March 23, 1984
Growth Regulator: B-9 @ 2500 ppm
Location: Saran House Bay G, Beds 4-5
-22-
Title: Chrysanthemum Cutting Establishment with Various Irrigation
and Cultural Methods
Researchers: C. D. Stanley and B. K. Harbaugh
Purpose: To determine effect of irrigation method, mulch, and an anti-
transpirant on establishment of cut-flower chrysanthemum cuttings.
Variables:
Irrigation method treatments:
1. Overhead sprinkler (microjet)
2. Overhead fogger
3. Trickle irrigation
Mulch treatments:
1. Plastic mulch
2. No plastic mulch
Anti-transpirant treatment:
1. Pre-transplanting dip
2. No anti-transpirant
Cultural Data:
Cultivar:
Cuttings:
Culture:
Manatee Yellow Iceberg
Rooted
Pinched
Data to be Collected:
Transplant leaf area
top weight
root weight
Location: Sawtooth Greenhouse, Bays 2 and 3
Comments:
It has been well established that trickle irrigation can be used
to produce a high quality cut-flower chrysanthemum crop. However,
its ability to establish cuttings without overhead irrigation has
not been well-documented. The ability to do so would aid trickle
irrigation's competitiveness to overhead sprinkler irrigation as
a multi-purpose irrigation system.
-23-
Title: Effect of emitter spacing on trickle irrigated chrysanthemum
production on sandy soils
Researchers: C. D. Stanley and B. K. Harbaugh
Purpose: To determine optimum emitter spacing for trickle irrigation
of cut-flower chrysanthemum production on sandy soils without
precipitation
Variables:
Treatments: Emitter spacing
1. 4 inch (10 cm)
2. 8 inch (20 cm)
3. 12 inch (30 cm)
Cultural Data:
Cultivar: Manatee Yellow Iceberg
Culture: Pinched
Irrigation Rate: 0.25 in./day (0.63 cm/day)
Data collected:
Stem weight
Stem height
Number of stems
Marketable rating
Plant water status
Location: Sawtooth Greenhouse, Bay 4
Comments: Proper emitter spacing for trickle irrigation is very important
because it can affect irrigation rate, soil water distribution,
and maximum length of run.
-24-
Title: Breeding and Evaluation of Dwarf tomatoes for use as Ornamental
Plants in Small Pots and Baskets.
Researchers: J. W. Scott and Brent Harbaugh
Purpose: To develop and release new cultivars of ornamental tomatoes
suited for 4 or 6" pots or 5-10" hanging baskets.
Variables: The releases of 'Florida Petite' and 'Florida Basket' were
significant improvements over available commercial dwarf
cultivars. Additional breeding efforts are underway to
reduce leaf and fruit size of dwarf tomatoes to develop
a tomato with a "miniature" appearance. Also, genetic
parthenocarpy (seedlessness) is being introduced to insure
fruit set without the need of pollination and efforts toward
development of a dwarf tomato with yellow fruit are continuing.
Field and greenhouse evaluations of 58 F generation breeding
lines and field evaluation of 29 F2 generation lines are in
progress.
Cultural Data: Tomatoes were seeded on Jan. 12, 1984, transplanted to
1 x 1 inch cells Jan. 25, 1984, and potted in 5" pots
or set in the field on Feb. 24, 1984.
Location: Sawtooth, Bay 5
Title: Production Practices for Lisianthus (Eustoma grandiflorum)
or Texas Blue Bells
Researcher: Brent Harbaugh
Purpose: To develop information for production of Lisianthus as a
flowering potted plant under South Florida conditions.
Variables:
Nine Lisianthus cultivars are being grown with a combination
of production regimes involving photoperiod, pinching and
growth regulators.
Cultural Data: Lisianthus potted Feb. 13, 1984.
Location: Sawtooth, Bay 5
-25-
Title: Evaluation of Petunia Cultivars in Raised Beds (Land N-18), 10-inch
baskets sarann house), and 4-inch pots (variety trial greenhouse).
Project No: BRA-02351
Researchers: T. K. Howe and W. E. Waters
Purpose: To evaluate the performance of 28 cultivars for use in west-central
Florida in beds and containers.
Variables:
I. 28 cultivars (replicated 4 times in beds and 4-inch pots and
3 times in
10-inch baskets)
1984 Replicated Petunia Trial
1. Ultra Plum Grandiflora F
2. Ultra Blue Grandiflora F
3. Ultra Mix Grandiflora F1
4. Ultra White Grandiflora F
5. White Flair Grandiflora F
6. Red Flair Grandiflora F1
7. Pastel Pink Sails Grandiflora F
8. Blue Cheer Multiflora F
9. Tahitian Sails Grandiflora
10. Yellow Ribbon Multiflora F1
11. Cosmic Rose and White Multiflora F1
12. Snowdrift Multiflora F1
13. Popeye Multiflora F
14. Flash Formula Mixed Grandiflora i
15. Dwarf Resisto Mixed Multiflora F
16. Velvet Flash Grandiflora
17. Rose Flash Grandiflora F
18. Pink Daddy Grandiflora F
19. Victory Multiflora F
20. Cloud Mix Grandiflora 1
21. Cascade Mix Grandiflora F
22. Magic Mix Grandiflora F1
23. Old Glory Mix Grandiflora F1
24. Challenger Mix Grandiflora F1
25. Penny Candy Grandiflora F1
26. Summer Madness Multiflora F1
27. Crockett's Victory White Grandiflora Fl
28. Double Sure Grandiflora F1
II. Culture
Beds: 8 plant plots on 12-inch centers
4-inch pots: 1 plant/pot started as spark plugs
10-inch baskets: 5 plants/pot
Data to be taken:
Goldsmith
Goldsmith
Goldsmith
Goldsmith
Burpee
Burpee
Harris
Harris
Harris
Harris
Harris
Harris
Harris
Sluis & Groot
Sluis & Groot
Sluis & Groot
Sluis & Groot
Pan American
Harris
Ball
Ball
Ball
Ball
Vaughan-Jacklin
Ball
Ball
Ball
Ball
Date of flower
Flower diameter and color
Mid-season plant height and diameter
Incidence of pests andjor disease
Quality
-26-
Title: Prevention of Bract Necrosis in Gutbier V-14 Glory Poinsettia
by Management of Fertilization Practices
Researchers: Brent Harbaugh and S. S. Woltz
Purpose: To determine if fertilization practices can be managed to
prevent bract necrosis in V-14 poinsettias.
Variables: Poinsettia plants are being subjected to different ratios
of NO and NH Ca and Mg, and liquid versus controlled
release fertilizers to determine the optimum balance of
these factors to prevent bract necrosis.
Cultural Data: V-14 poinsettias planted Jan. 25, pinched Feb. 8,
lighted until Feb. 22, and cycocel applied Feb. 23
and March 14, 1984.
Location: Ornamental Horticulture Greenhouse
Title: Effect of Microelement Imbalances on Poinsettias
Researcher: Brent Harbaugh
Purpose: To determine the poinsettia disorders caused by imbalances
in Boron, Iron, Copper, Manganese, Zinc and Molybdenum.
Variables: Poinsettia plants are being subjected to various microelements
(as single elements or in combination with other microelements)
to determine the effect of imbalances on poinsettias.
Cultural Data: Annette Hegg Diva Red poinsettias were planted Jan. 25,
pinched Feb. 8, lighted until Feb. 22, and cycocel applied
Feb. 23 and March 14, 1984.
Location: Ornamental Horticulture Greenhouse
-27-
Title: Prevention of lateral branch abscission in Annette Hegg Diva and
Gutbier V-10 Amy Poinsettias by Management of Medium Amendments
and Fertilization Practices.
Researcher: Brent Harbaugh
Purpose: To determine if fertilization practices and medium amendments can
be managed to prevent lateral branch abscission in poinsettia.
Variables: Poinsettia plants are being grown in media amended with various
combinations of microelements and liming materials, and fertilized
with solutions containing combinations of major and microelements
to determine the optimum combination of medium amendments and
fertilization practices to prevent lateral branch abscission.
Cultural Data: Annette Hegg Diva and V-10 Amy poinsettias were planted
Jan. 25, pinched Feb. 8, lighted until Feb. 22, and cycocel
applied Feb. 23 and March 14 (Diva) or Feb. 23 (Amy).
Location: Ornamental Horticulture Greenhouse
Title: Forcing Achimenes
Researchers: Brent Harbaugh and Jim Gilreath
Purpose; To determine if storage procedures and GA3 can be used to decrease
the length of time required to force Achimenes to flower so they
could be used as a Mother's Day crop.
Variables: Achimenes rhizomes were harvested at 2 week intervals from August
through November, stored for different lengths of time, and then
treated with various concentrations of GA3
Cultural Data: Rhizomes were planted January 18 and February 15, 1984.
Location: Ornamental Horticulture Greenhouse
-28-
Title: Production Practices for Tissue Cultured Caladiums
Researcher: Brent Harbaugh
Purpose: To develop information on media and fertilization requirements
for production of caladiums from tissue cultured plants.
Variables:
Several caladium cultivars are being produced from "plugs"
in 4" pots with combinations of media and fertilizer types.
Media components vary in liming materials, Gypsum and
vermiculite, and fertilization practices involve NO3:NH4
ratios, Ca:Mg ratios, and liquid versus controlled
release fertilizers.
Location: Ornamental Horticulture Greenhouse
Title: Storage of Caladium Tubers
Researchers: Brent Harbaugh and Frank Marousky
Purpose: To determine if controlled atmosphere storage techniques
will increase the storage time and vigor of caladium tubers.
Variables:
Three caladium cultivars are being stored in controlled
atmospheres involving ratios of CO2, 02 and relative
humidity.
Cultural Data: 'Candidum,' 'Red Frill,' and 'Carolyn Whorton' tubers
were placed in chambers Feb. 8.
Location: Ornamental Horticulture Greenhouse.
-29-
Title: Poinsettia Growth Regulators
Project: BRA-02076
Researcher: Gary J. Wilfret
Purpose: To evaluate the effect of paclobutazol (ICI-PP-333) on
poinsettia plants using the chemical with or without
a surfactant (Tween 20).
Variables:
No. Chemical Treatments
PP-333 (GFU342 w/Tween 20)
PP-333 (GFU341 w/Tween 20)
PP-333 (GFU305 w/o Tween 20)
PP-333 (GFU305 w/o Tween 20)
GFU305 + 0.1% Tween 20
GFU305 + 0.1% Tween 20
Tween 20 @ 0.05% v/v
Water Check
Experimental Data:
Planted: 2/8/84
Pinched: 2/22/84
Treated: 3/13/84
Short Days Started:
Rate Pot
(ppm) numbers
31.25
62.5
31.25
62.5
31.25
62.5
3-27
28-52
53-81 w/o 65-68
82-106
107-131
134-158
159-185 w]o 182,183
186-210
Plants/Trt: 25
Plants]6" Pot:
3/20/84
Location: Horticulture Greenhouse, Benches 2 and 3
-30-
Title: Leafminer and Nematode Control with Foliar Sprays on Fumigated
vs. Nonfumigated Soil for Chrysanthemum.
Project: BRA01976
Researchers: A. J. Overman and J. F. Price
Purpose: To evaluate efficacy of foliar applications of pesticides
for control of leafminers, nematodes, and other pests on
chrysanthemum.
Cultivar: Manatee Iceberg (rooted cuttings)
Fumigated: Feb. 13, 1984
Planted: March 8, 1984 (single stem)
Lights off: March 15, 1984
Variables:
Fumigation: 0 = none
1 = Terro-O-Cide 30D EC, 12 gal7A
Foliar Sprays: 0 = none
1 = Vydate L, 1 Ib ai/A/wk
2 = Trigard 75WP, 1/8 lb aijA/wk
3 = Nemacur 3C, 1 Ib ai]A/wk
Replicates: 4
Location: ORB House, 8 beds
-31-
Title: Response of Poinsettia to Varied Cation Nutritional Balance and
Calcium Deficiency
Project: BRA-02359
Researchers: S. S. Woltz and B. K. Harbaugh
Purpose: To determine the inorganic nutritional response to balance among
cations for V-14 poinsettia, with emphasis on induced deficiencies
and toxic excesses; also, by producing deficiency and excess effects
at various stages to identify production problems that are current
or prospective; to determine whether a deficiency of calcium at the
flowering stage is the cause of bract necrosis, a production problem
in V-14.
Variables: Poinsettia plants are being subjected to various cation balance
regimes to study the symptomology of ammonium toxicity, calcium
deficiency and magnesium imbalance. Cations varied include
ammonium, calcium, potassium, magnesium-and sodium. Calcium
is being provided at 6 levels from none to excess to produce
the range of effects that may be associated with the element.
Cultural Data: V-14 was planted 2-23-84 in 2/3 virgin Myakka fine sand and
1/3 Florida peat purposely somewhat imbalanced to predispose
to induced calcium deficiency. Weekly liquid feed is being
adjusted to elicit responses demonstrating deficiencies,
imbalances and toxicities.
Comments: Data are not yet available.
Location: Physiology Greenhouse
-32-
Title: Effect of Lime, Magnesium, Aluminum and Micronutrient Variations
on Hibiscus
Project: BRA-02359
Researcher: S. S. Woltz
Purpose: To determine the nutritional requirements of hibiscus potted
flowering plants.
Cultural Data:
Three liming procedures were superimposed on variations in
supply of 6 micronutrients as well as magnesium and aluminum.
Forty-eight combinations were prepared in a mix of 2/3 Virgin
Myakka fine sand, 1/3 Florida peat. Each micronutrient was
omitted from one combination and also furnished at normal as
well as high rates.
Pink Versicolor hibiscus plants were potted in 7" containers
on March 1, 1984.
Comments: No data are yet available.
Location: Physiology Greenhouse
Title: Response of Poinsettia to Micronutrients
Project: BRA-02359
Researcher: S. S. Woltz
Purpose: To determine the response of V-14 poinsettia to copper, iron,
manganese and zinc variables.
Variables:
Media amended variably with aluminum, lime and superphosphate
received treatments of copper, iron, manganese and zinc together
individually or with all omitted. There are 48 treatment combi-
nations.
Cultural Data: V-14 was planted 2-23 in 2/3 virgin Myakka fine sand and 1/3
Florida peat in 6" plastic containers.
Comments: No data are yet available.
Location: Physiology Greenhouse
-33-
Title: Effect of Nutrition on Fusarium Wilt of Carnation
Project: BRA-02210
Researcher: S. S. Woltz
Purpose: To determine the effect of aluminum, lime, phosphate, and
micronutrients on severity of Fusarium wilt of carnation.
Variables:
Micronutrients were varied in two media (virgin Myakka fine
sand and a mix of 1:1 Florida peat:vermiculite). Superimposed
were 2 levels each of lime, phosphate and aluminum.
Improved White Sim was planted in 6" pots January 20, 1984.
Complete nutrient mix was provided including variables.
Plants were inoculated with Fusarium and roots were wounded
to encourage disease development.
Comments: Plants are not yet showing wilt symptoms.
Location: Physiology Greenhouse
-34-
Title: Garden Trial (Land N-18)
Project: BRA-02351
Researcher: T. K. Howe
Purpose: To examine in non-replicated fashion a variety of flowering
annuals in a bed setting.
Variables: Over 100 cultivars in single plots of 8 plants per plot.
Garden area includes the following major groups: marigold,
petunia, coleus, celosia, lisianthus, snapdragon, ageratum,
geranium, salvia, and others.
Data to be taken:
Date of flower
Flower diameter and color
Mid-season plant height and diameter
Incidence of pests and/or disease
Quality
-35-
Title: Evaluation of Herbicides for Phytotoxicity to Gladiolus Cormels
Spring 1984
Project: BRA-02142
Researcher: J. P. Gilreath
Purpose: To evaluate those herbicides which have performed well on flowering
gladiolus for phytotoxicity to young cormels bulbletss).
Experimental Design: Randomized Complete Block
Number of Replications (Blocks): 4
Plot Size: 10 ft. x 30 inch raised bed on a 4.5 ft. row spacing
Plant Spacing: Cormels were broadcast in a 4.5 inch wide furrow at a rate
of 6 lb. per 100 linear feet, or 0.6 Ib (272 grams) per
10 ft. plot.
List of Treatments:
Rate Method of
No. (lb. a.i./A) application
1. Hoed check --
2. Lasso 1.5 pre
3. Kerb 2.0 pre
4. Surflan 2.0 pre
5. Fusilade 0.25 post
Date of Preemergence Herbicide Application: February 22, 1984
Date Planted: February 22, 1984
Cultivar: Manatee Yellow (75 day cv)
Location: Block B, Land 5
-36-
Title: Effect of various populations of cypressvine morningglory on yield
of flower spikes and corms of gladiolus, spring 1984
Project: BRA-02142
Researchers: J. P. Gilreath and K. Portier
Purpose: To determine the yield reduction of gladiolus associated with
different populations of cypressvine morningglory. The ultimate
objective of this work will be to determine at what population
level chemical weed control becomes necessary in order to maintain
high yields and a costs/benefits analysis of the situation.
Experimental Design: Randomized Complete Block
Number of Replications (Blocks): 4
Plot Size: 18 ft. x 30 inch raised bed on a 4.5 ft. row spacing with a
2 ft. alley between plots.
Plant Spacing: Gladiolus 3 number 2 size corms per foot in a single row
(54 corms per plot)
Morningglory various spacings as indicated below. Planted
at time of planting in a 6 inch wide band centered on the
gladiolus row to simulate the commercial situation when
cultivating. All seed mechanically scarified prior to
planting.
List of Treatments:
No.
1
6
7
8
Date Planted:
Number of morningglory plants per:
Square foot Linear foot Plot
0 0 0
2 1 18
4 2 36
8 4 72
12 6 108
16 8 144
24 12 216
32 16 288
February 22, 1984
Cultivar: Manatee Yellow (75 day cv)
Location: Block B, Land 5
-37-
Title: Effect of duration of cypressvine morningglory completion on yield
of gladiolus flower spikes and corms, spring 1984
Project: BRA-02142
Researchers: J. P. Gilreath and K. Portier
Purpose:
To determine the effect of varying durations of competition by a
high population of cypressvine morningglory on yield of gladiolus
flower spikes and corms. Data obtained will be used to determine
when morningglory competition is the strongest and when morningglory
control is essential in order to obtain acceptable yields.
Experimental Design: Randomized Complete Block
Number of Replications (Blocks): 4
Plot Size: 14 ft. x 30 inch raised bed on a 4.5 ft. row spacing
Plant Spacing:
List of Treatments:
No.
1
2
3
4
5
6
7
8
9
10
Date Planted: Febr
Gladiolus three number 2 size corms per foot in a single
row (42 corms/plot)
Morningglory scarified seed planted at random on bed in
a one foot wide band centered on the gladiolus plant row
at a rate of 480 seeds (8 grams of seed) per plot at time
of planting or at other intervals as indicated below.
Weeks
weedy
0
3
6
9
12
15
Weeks
weed-free
15
uary 22, 1984
Cultivar: Manatee Yellow (75 day cv)
Location: Block B, Land 5
-38-
Title: Evaluation of herbicides for phytotoxicity to flowering statice,
spring 1984
Project: BRA-02142
Researcher: J. P. Gilreath
Purpose: To evaluate those herbicides which show promise in preliminary
screening experiments for phytotoxicity to flowering statice
under field conditions. Compounds which show promise in this
experiment will be evaluated for weed control in the fall of
1984.
Experimental Design: Randomized Complete Block
Number of Replications (Blocks): 4
Plot Size: 15 ft. x 30 inch raised bed on 4.5 ft. row spacing
Plant Spacing: Transplants set 1.5 ft. apart in a single row for a total
of 10 plants per plot
"st of Treatments:
Rate Method of
No. (lb. a.i./A) application
1. Hoed check --
2. Lasso 1.5 pre
3. Ronstar 4.0 pre
4. Eptam 3.0 ppi
5. Dacthal 8.0 pre
6. Devrinol 2.0 pre
7. Surflan 2.0 pre
Date of Herbicide Application: February 22, 1984
Date Planted: February 22, 1984
Cultivar: Midnight Blue
Location: Block B, Land 5
-39-
Title: Gladiolus Seedling Evaluation and Breeding
Project: BRA-02352
Researcher: Gary J. Wilfret
Purpose: To breed and evaluate gladiolus seedlings for their potential
use as cut or landscape flowers which have high levels of
tolerance to Fusarium wilt.
Variables:
Over 100 advanced lines are planted for your observation. Some
of the more promising seedlings are as follows:
#91 Salmon Orange Cut Flower
#301 Pink Cut Flower
#329 Pink Landscape
#331 Pink Cut Flower
#578 Red Cut Flower
#633 Violet Garden and Landscape
#785 Scarlet Cut Flower
#1298 Red and Pink Novelty
#1401 Salmon Cut Flower
In addition, the following recent introductions may be observed:
Jessie M Conner Yellow Landscape
Florida Flame Red Cut Flower
Dr. Magie Salmon Pink Cut Flower
Experimental Data:
Planted: March 6, 1984
Location: Block C, Lands 25 and 26
-40-
ACKNOWLEDGEMENT OF INDUSTRY SUPPORT FOR THE RESEARCH PROGRAMS
AT THE GULF COAST RESEARCH AND EDUCATION CENTER,
BRADENTON, FLORIDA
The effectiveness of the Research Programs at the Gulf Coast Research and Educa-
tion Center here in Bradenton has been greatly enhanced by the excellent support
from the various segments of the Agri-business industries and producers, both
locally and nationally. This support in the form of financial grants-in-aid,
products and services, or equipment, supplements existing state funds and makes
each research project at the Center far more productive than could otherwise be
realized. We sincerely appreciate your participation in these research programs
and are pleased to acknowledge your support
Listed below are the names of agencies, firms or individuals who have contributed
significantly to the research programs during the past two years. We trust that
our records are complete and say again, "Thank you for your confidence."
AGRO-K CORP., Minneapolis, MN
AG. WATER SUPPLY CO., Sebring, FL
ABBOTT LABORATORIES, North Chicago, IL
AMERICAN COLLOID CO., Skokie, IL
AMERICAN CYANAMID CO., Wayne, NJ
AMERICAN HOECHST CORP., Somerville, NJ
ASGROW-FLORIDA CO., Plant City, FL
BALL SEED CO., West'Chicago, IL
BASF WYANDOTTE CORP., Parsippany, NJ
DONALD BATES CALADIUM FARM, Lake Placid, FL
BEAR HOLLOW CALADIUM BULB FARMS,
Lake Placid, FL
BEDDING PLANTS, INC., Okemos, MI
BUCKEYE CELLULOSE CORP., Memphis, TN
CHEVRON CHEMICAL CO. (ORTHO)
San Francisco, CA
CIBA-GEIGY, Greensboro, NC
CITIES SERVICE CO., Atlanta, GA
ANDY CRAIG FARM, Dade City, FL
DANKERT FARMS, INC., Dover, FL
DONALD DITTMAR, Sebring, FL
DOW CHEMICAL, USA, Midland, MI
A. DUDA & SONS, Oviedo, FL
E. I. DUPONT DE'NEMOURS & CO., INC.,
Wilmington, DE
PAUL ECKE, JR., Encinitas, CA
ELSBERRY FARMS,"INC., Ruskin, FL
ELSBERRY GREENHOUSES, Ruskin, FL
FLORIDA FLOWER ASSOC., Fort Myers, FL
FLORIDA STRAWBERRY GROWERS ASSN.,
Plant City, FL
FLORIDA TOMATO EXCHANGE, Orlando, FL
FMC CORP., New York, NY
4-STAR, INC., Palmetto, FL
GAS RESEARCH INSTITUTE, Washington, DC
FRED C. GLOECKNER FOUND., INC., New York, NY
GLOECKNER SEED CO., New York, NY
GOEMAR INT. CORP., Atlanta, GA
GREAT LAKES CHEMICAL CO.,
W. Lafayette, IN
GROOMS FARMS INC., Plant City, FL
HAPPINESS FARMS, Lake Placid, FL
HARLLEE FARMS, Palmetto, FL
HARLLEE-GARGUILO, INC., Palmetto, FL
HARTMAN LABORATORIES, Palmdale, FL
HAWKINS FLOWERS, Fort'Myers, FL
HILLSBOROUGH CO.'MARKETING,
Plant City, FL
ICI AMERICAS, INC., Wilmington, DE
INSECT CONTROL RES. CO., Glen Ellyn, IL
KOCIDE CHEMICAL CO., Houston, TX
AL KOOL, INC., Jackson, TN
LEISEY FARMS, Ruskin, FL
LIEWALD NURSERY, Palmetto, FL
ELI LILLY & CO., Indianapolis, IN
MALLINCKRODT, INC., St. Louis, MO
MANATEE FRUIT'CO., Palmetto, FL
MERCK, SHARPE & DOHM RESEARCH LAB,
Rahway, NJ
MICROLIFE TECHNICS, Sarasota, FL
MINERAL RESEARCH & DEVELOPMENT CORP.,
Charlotte, NC
MONSANTO AGRICULTURAL PRODUCTS CO.,
St. Louis, MO
NOR-AM AGRICULTURAL PRODUCTS, INC.
Naperville, IL
NORTHRUP KING CO., Minneapolis, MN
OGELSBY NURSERIES, Ft. Lauderdale, FL
PALMETTO PLANTS CO., INC., Parrish, FL
PAN AMERICAN PLANT CO., Parrish, FL
PAN AMERICAN SEED CO., W. Chicago, IL
PARKESDALE FARMS, INC.; Dover, FL
PEACE RIVER PEAT CO., Bartow, FL
PENNWALT CORP., Philadelphia, PA
PHELPS DODGE REFINING CORP.,
New York, NY
-41-
THE PLANT FARM, Sarasota, FL
PLANTS, INC. OF SARASOTA, Sarasota, FL
PLANTS OF RUSKIN, Ruskin, FL
PRODUCERS FERTILIZER CO., Palmetto, FL
REASONER'S TROPICAL NURSERIES, INC.,
Oneco, FL
RHONE-POULENC CHEMICAL CO.,
Monmouth Junction, NJ
ROHM & HAAS CO., Philadelphia, PA
SANDOZ, INC., San Diego, CA
0. M. SCOTT'S FERTILIZER CO.,
Marysville, OH
SDS BIOTECH CORP., Pounesville, OH
SHELL DEVELOPMENT CO., Modesto, CA
SIERRA CHEMICAL CO., Milpitas, CA
SLUIS & GROOT, Salinas, CA
SOCIETY OP AMERICAN FLORISTS ENDOWMENT,
Alexandria, VA
SOUTHERN AGRICULTURAL CHEMICALS CO.,
Rubonia, FL
SOUTHWEST FLORIDA WATER MANAGEMENT DISTRICT,
Brooksville, FL
SPEEDLING, INC., Sun City, FL
STAUFFER CHEMICAL CO., San Francisco, CA
S. M. ELECTRONICS, INC., Hollywood, FL
TAMIAMI FLOWERS, Fort Myers, FL
TENNESSEE CHEMICAL CO., Atlanta, GA
UNION CARBIDE AGRI. PROD. CO., INC.
Research Triangle Park, NC
UNIVERSITY OF FLORIDA, IFAS, Gainesville, FL
International Programs
Center for Biomass Energy Systems
SHARE Program
USDA-ARS-DSR, IR-4 PROJECT,
New Brunswick, NJ
USDA-SEA SOUTHERN.REGION PESTICIDE IMPACT
ASSESSMENT PROGRAM, Little Rock, AR
USDA-SEA TROPICAL AND SUBTROPICAL AGRICULTURE
PL89-808, SECTION 406 PROGRAM, Washington, DC
WATER CONTROL PRODUCTS, Winter Haven, FL
MARCUS WILLIAMSON FARMS, Dover, FL
YODER BROTHERS, Fort Myers, FL and
Barberton, OH
ZOECON CORP., Palo Alto, CA
GULF COAST
RESEARCH AND EDUCATION CENTER
BRADENTON, FLORIDA