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 Front Cover
 Title Page
 Schedule of activities
 Table of Contents
 Introduction
 History of the Agricultural Research...
 List of faculty
 Facilities of Agricultural Research...
 Research
 Acknowledgement


FLAG IFAS PALMM



Vegetable field day
ALL VOLUMES CITATION SEARCH THUMBNAILS PAGE IMAGE ZOOMABLE
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00054244/00002
 Material Information
Title: Vegetable field day
Series Title: Bradenton GCREC research report
Physical Description: v. : ill., maps ; 28 cm.
Language: English
Creator: University of Florida -- Institute of Food and Agricultural Sciences
Agricultural Research & Education Center (Bradenton, Fla.)
Gulf Coast Research and Education Center (Bradenton, Fla.)
Publisher: University of Florida.
Place of Publication: Gainesville Fla
Creation Date: 1975
Frequency: annual
regular
 Subjects
Subjects / Keywords: Plants, Cultivated -- Field experiments -- Periodicals -- Florida   ( lcsh )
Plants, Protection of -- Research -- Periodicals -- Florida   ( lcsh )
Vegetables -- Diseases and pests -- Periodicals -- Florida   ( lcsh )
Vegetables -- Varieties -- Periodicals -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
serial   ( sobekcm )
 Notes
General Note: Description based on: 30th (1973); title from caption.
General Note: Latest issue consulted: 43rd (1999).
Funding: Florida Historical Agriculture and Rural Life
 Record Information
Source Institution: Marston Science Library, George A. Smathers Libraries, University of Florida
Holding Location: Florida Agricultural Experiment Station, Florida Cooperative Extension Service, Florida Department of Agriculture and Consumer Services, and the Engineering and Industrial Experiment Station; Institute for Food and Agricultural Services (IFAS), University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 62706005
lccn - 2005229077
System ID: UF00054244:00002

Table of Contents
    Front Cover
        Front Cover
    Title Page
        Page 1
    Schedule of activities
        Page 2
    Table of Contents
        Page 3
    Introduction
        Page 4
    History of the Agricultural Research and Education Center - Bradenton
        Page 5
    List of faculty
        Page 6
    Facilities of Agricultural Research and Education Center, Bradenton
        Page 7
        Page 8
    Research
        Page 9
        Page 10
        Page 11
        Page 12
        Page 13
        Page 14
        Page 15
        Page 16
        Page 17
        Page 18
        Page 19
        Page 20
        Page 21
        Page 22
        Page 23
        Page 24
    Acknowledgement
        Page 25
        Page 26
Full Text
"3"

r-S


Bi, Forida


31st VegetaField Day

May 21, 1975


IMtitewad Fod an AgriaouamI Sience
Univmsfy of Flrik


Bradenton AREC Research Report


GC- 197 5







AGRICULTURAL RESEARCH & EDUCATION CENTER
BRADENTON, FLORIDA




FIFTY



(50)



YEARS


OF RESEARCH HELPING TO IMPROVE
FLORIDA AGRICULTURE
(1925 1975)




BRADENTON AREC RESEARCH REPORT GC-1975-5
D. S, BURGIS, EDITOR
PRINTING: EDITORIAL DEPT.,, IFAS, UNIVERSITY OF FLORIDA,
GAINESVILLE, FLORIDA











SCHEDULE OF ACTIVITIES FOR WEDNESDAY, MAY 21, 1975

RESEARCH REVIEWS AND FIELD DAY ACTIVITIES


Wednesday morning


10:00 Welcome and Introduction, W. E. Waters, Center Director
Moderator: Mr. Richard Aalberg, Manatee County
Extension Director
10:10 Fifty Years of Progress The Golden Anniversary of
the Bradenton Research Center. Dr. J. W. Sites, Dean
for Research, University of Florida, Gainesville

10:30 12:00 Research Highlights by the Research Faculty of the
AREC-Bradenton

10:30 Solar Energy..................................R. F. Luc

10:40 Soil and Atmospheric Fluoride Pollution.......S. S. Wol

10:50 Trickle Irrigation and Nutrition..............N. Persau

11:00 Disease Control..............................J. P. Jon

11:10 Nutritional Studies...........................C. M. Ger

11:20 Soil Treatment for
Nematode and Disease Control.................A. J. Ove

11:30 Herbicides, Vegetable Varieties and
Tomato Breeding............................ D. S. Bur

11:50 Insect Control................................D. J. Sch

12:00 1:15 Picnic box lunch under the oaks at AREC-Bradenton

1:15 4:00 Tour of Research Plots, AREC-Bradenton


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aldson


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TABLE OF CONTENTS

Page

Schedule of Activities... ................................... 2

Table of Contents............................................. 3

Introduction................................................ 4

History of AREC-Bradenton................................... 5

List of Faculty............................................. 6

Facilities of AREC-Bradenton................................ 7-8

FIELD TOUR Faculty and Experimental Plots listed respective
to Stations

Tour Stops

1. A. Solar Energy (R. F. Lucas)....................... 9
B. Soil and Atmospheric Fluoride Pollution
(S. S. Woltz)................................. 10

2. A. Trickle Irrigation and Nutrition (N. Persaud).... 11
B. Cucurbit-fungicide Trials (J. P. Jones)........... 11

3. A. Fertilizer-placement, rates and plant
population (C. M. Geraldson)................. 12
B. Row spacing, pruning and fertilizer rate
(C. M. Geraldson)............................ 13
C. Single salts to basic fertilizer
(C. M. Geraldson)............................ 14
4. Soil pH and fumigation (A. J. Overman, J.P.Jones).... 15

5. A. Immediate and preplant fumigation
(A. J. Overman, J. P. Jones)................. 16
B. Comparison of fumigants for control of
Verticillium wilt (A. J. Overman, J.P.Jones). 17

6. A. Dwarf Tomato Lines (D. S. Burgis)................ 18
B. Herbicide Evaluation (D. S. Burgis).............. 18
*C. Processing Tomatoes (D. S. Burgis) ............... 18
D. Watermelon-mulch (D. S. Burgis).................. 19
E. uipel insecticide formulation rates-cabbage
(D. J. Schuster) ............................. 20
F. F1 Hybrid Tomatoes (D. S. Burgis)................. 21
G. Southern Pea Varieties (D. S. Burgis)............ 21
H. Old Variety Plots (D. S. Burgis).................. 22
I. Replicated STEP Trials (D. S. Burgis)............ 23
J. Leafminer population studies (J. P. Jones, 24
D. J. Schuster)..............................


-3-









INTRODUCTION


On behalf of the faculty and staff, I extend to each of you a
most cordial welcome to the Agricultural Research and Education
Center at Bradenton. This Center was initiated fifty years ago
as a one-man operation in Palmetto and the first ornamental
programs began about 17 years later. This Center, with affiliated
Agricultural 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 10 research scientists from various
disciplines of training who participate in ornamental plant
research programs. Each research scientist also holds a joint
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
the interdisciplinary cooperative team approach to research
problems 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 vegetable industries in Florida through
research programs to (1) Development of new or improving
technology for more efficient production, handling and utilization
of horticultural products composed mainly of flowers and
vegetables; (2) Improvement in quality of products made available
to the consuming public; (3) Development of technology and
practices to reduce environmental pollution without sacrificing
quality during production and thereby enhance man's environment;
(4) To maintain and improve the productivity of soils in the
state of Florida; (5) Develop information to all Florida growers
to compete effectively with other geographic areas of the nation
and world; (6) Advancement of basic knowledge of the various
scientific disciplines represented by the faculty; (7) To
assist the cooperative extension service, departments in the
College of Agriculture and other Research Centers with extension,
educational training, and cooperative research programs for
the benefit of producers, consumers and students.

Information presented in this mimeograph 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 AGRICULTURAL RESEARCH & EDUCATION CENTER BRADENTON


Agricultural Research & Education Center Bradenton originated in the
fall of 1925 with construction of the Tomato Disease Laboratory.

Tomato Disease Laboratory: In 1925 a 20-acre tract of county-owned property
in Palmetto was made available with the cooperation of the Manatee Board
of County Commissioners, with money and equipment supplied by local growers.
Primary objective of the laboratory was to formualte 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
the 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 eighty percent of the purchase price of a 106-acre tract on the
east side of Bradenton. This expanded program 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 the gladiolus growing area, the scope was further broadened
in 1942 to include disease problems confronting gladiolus growers.

Gulf Coast Experiment Station: In March, 1951, 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 then initiated dealing with chemical weed control,
nematodes, and other soil-borne pests. 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. 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 land.

Agricultural Research & Education Center Bradenton: In 1971 the Gulf
Coast Experiment Station was renamed Agricultural Research & Education
Center to emphasize the programs of both research and education.

Active programs are in progress on production problems associated with
vegetables and ornamentals grown on the sandy soils of Florida.

AREC-Bradenton 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, etiology and control of diseases, and pasture research, while
the latter is the hub of strawberry research in Florida, including
breeding, horticultural and pathological studies.




LIST OF FACULTY, APPOINTMENT DATE, AND AREA OF SPECIALIZATION
Agricultural Research and Education Center Bradenton, Florida

Waters, Will E., 1960, Horticulturist and Center Director.
Administration, soil and plant nutrition, and herbicides.

(Augustine, J. J., July 1975),. Asst. Geneticist. Tomato breeding,
genetics of fungus and virus disease resistance.

Burgis, D. S., 1946, Horticulturist. Vegetable production, weed
control and growth regulators.

Engelhard, A. W., 1966, Assoc. 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.

Jones, J. P., 1958, Plant Pathologist. Etiology and control of diseases
of vegetable crops.

Magie, R. 0., 1945, Plant Pathologist. Etiology and control of diseases
of ornamental crops with emphasis on gladiolus flower and corm diseases.

Marousky, F. J., 1967, Research Horticulturist (USDA). Post-harvest
physiology of cut flowers.

Overman, A. J., 1945, Nematologist. Etiology and control of nematode
problems of ornamentals and vegetables.

Schuster, D. J., 1975, Asst. Entomologist. Identification, biology
and control of insects and mites of vegetables and ornamentals.

Wilfret, G. J., 1969, Asst. 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.

Asst. Ornamental Horticulturist. Systems for production,
harvesting and marketing of ornamental crops.

Area Farm Management Economist. Development of economic
data on ornamental, vegetable and other crops.

Agricultural Research Center Immokalee, Florida

Everett, P. H., 1958, Soils Chemist. Center Administration, soil and
plant nutrition, production, and variety development of vegetable crops.

Blazquez, C. H., 1966, Assoc. Plant Pathologist. Etiology and control of
vegetable diseases with emphasis on disease forecasting & fungicide longevity.

Agricultural Research Center Dover, Florida

Albregrs, E. E., 1967, Assoc. Soils Chemist. Center Administration,
production, soil, and plant nutrition of strawberries and vegetables.

Howard, C. M., 1967, Assoc. Plant Pathologist. Strawberry breeding and
etiology and control of vegetable and strawberry diseases.








FACILITIES OF AGRICULTURAL RESEARCH & EDUCATION CENTER, Bradenton

The Research and Education Center, Bradenton, has developed excellent new
facilities since 1965. Each scientist has available office, laboratory,
greenhouse, and field areas as well as field and laboratory technicians to
support his research programs. The research facilities consist of 200
acres of sandy soil located at the main center, plus 40 acres near Cortez,
Florida, 27 buildings containing 16 offices, library, 9 laboratories, 3
headhouses, 10 greenhouses, 5 storage buildings, 8 walk-in cold rooms, 2
large saran ranges for ornamental plants, maintenance shop, four irrigation
wells, a fleet of vehicles and tractors. The list below is a numerical
key to facilities sketched on page 8 of this publication.


KEY TO FACILITIES

State Building
Numerical Key Building Name Number

1 Office and Laboratories 7601
2 Ornamental Saran House 7616
3 Chemical Storage 7629
4 Soil Boxes
5 Ornamental-Nematology Greenhouse 7628
6 Ornamental Research Saran House 7626
7 Plant Production House 7625
8 Plant Pathology Greenhouse 7615
9 Entomology-Tomato Genetics Greenhouse 7614
10 Horticulture Greenhouse 7613
11 Ornamental-Genetics Greenhouse 7627
12 Herbicide Greenhouse 7611
13 Tomato-Genetics Greenhouse 7610
14 Pesticide Storage 7609
15 Headhouse, Laboratory, Cold Rooms 7624
16 Speedling Greenhouse 7630
17 Storage Shed
18 Well House
19 Equipment Storage 7607
20 Bulb Shed 7621
21 Well House
22 Farm Maintenance 7604
23 Farm Equipment Building 7605
24 Residence 7602
25 Cortez Farm Building (not shown) 7623
26 Soil Sterilization 7631
27 Fumigation Greenhouse 7632





AGRICULTURAL RESEARCH & EDUCATION CENTER
BRADENTON, FLO R I DA


C

L
C


BRADENTON AREC Research Report GC-1975-5











SOLAR ENERGY


Horticulture Greenhouse (Mr. R. F. Lucas)

Purpose: To design and construct an efficient and inexpensive
greenhouse heating system by conversion of solar energy.

Operation:Solar radiation (heat energy) is captured within the
collector boxes with the heat being transferred to the
water circulating in the black plates. The hot water
is circulated to a storage tank for later use. During
cold weather the hot water is circulated through heat
exchangers beneath the benches where a fan blows the
warm air.

A similar system using hot air instead of water is also
under development at the Center.

Results: The present solar heating system is working as designed
and is capable of holding nighttime greenhouse temp.
at 600 for up to five days with no additional heat input.
The cost of the system has been reduced considerably
from original estimates. All components are now readily
available and total greenhouse solar heating systems
could be commercially available in the very near future.





FLUORIDE POLLUTION


Location:


Fumigation greenhouse (S. S. Woltz)


Purpose: To determine the visible and hidden injury produced in various
vegetable crops by soil-borne and atmospheric fluoride; to
determine benefit of varied liming practices on the injury.

Crops: Sweet corn 'Silver Belle'
Mustard 'Florida broadleaf'
Turnip 'Purple top white globe'
Blackeyed pea 'California #5'
Green bean 'Harvester'

Planting Date: March 25

Treatments: Soils in boxes steamed virgin Myakka fine sand.
Soil I: 1,000 lbs Dolomite per acre
2,000 lbs Superphosphate per acre


Soil II: 1,000
2,000
3,000


lbs Dolomite per acre
Ibs Superphosphate per acre
lbs Hydratea lime per acre


Fumigation
Air in F
Air in F

Air in F


greenhouses, air partially scrubbed over
G 1: Scrubbed air
G 2: Scrubbed air + 4 parts per billion
(micrograms F as HF per cubic meter
G 3: Scrubbed air + 20 parts per billion
(micrograms F as HF per cubic meter


water on pads

fluoride
of air)
fluoride
of air)


Procedure:


Hydrofluoric acid solutions are vaporized in gas generators on
west side of greenhouses and blown through the greenhouse
compartments by fans changing the air every 2 minutes.
Fluoride in air is continuously monitored by air sampling;
adjustments are made as required according to the air analysis
results. Soil fluoride is derived from superphosphate.
Liming with hydrated lime reduces availability of fluoride
to plants as a soil treatment variable in the experimental
procedure.


Results: Sweet corn was damaged by soil-borne and atmospheric fluoride.
Damage was reduced by liming. Sweet corn injury was expressed
as a tip and marginal leaf scorch. Blackeyed peas were damaged
in Soil I, apparently by soil-derived fluoride. Fluoride is
released from superphosphate by soil acidity and acidity of
the superphosphate. Air-borne fluoride resulted in additional
damage to blackeyed peas in terms of leaf scorch. Liming to
high pH levels with hydrated lime reduced soil-borne and
atmospheric fluoride damage.

Recommendations: Follow good liming procedures to avoid the effects of
soil-borne fluoride toxicity which result from low pH 5.0 to
5.5). Fluoride toxicity may be included in the "soil-acidity-
complex" which is incompletely defined.


-10-






TRICKLE IRRIGATION

Block G, Land 2 (N. Persaud, S. Locascio,.C. M. Geraldson)

Purpose: To evaluate the effect of rates and placement of N and K
and irrigation system on tomatoes grown with mulch.

Crop: Tomato Walter

Set: February 21


Treatments:*


Seep Trickle**


Broadcast
Broadcast
Broadcast
Banded 3" below


10% Bdcst


10% Bdcst


90%
banded
on top
90%
3"
below


*Replicated in Gainesville
**Anjac (Drip-Eze)
Results preliminary
Experiment duplicated using


- using trickle and overhead irrigation


seep irrigation in Block I, Land 2 (see p.13).


CUCUMBER-CANTALOUPE FUNGICIDE TRIAL


Land: G Block


Purpose:
1) Determine efficacy of sodium azide alone and in combination
with various foliar fungicides in controlling soil rot
incited by Rhizoctonia solani.
2) Determine efficacy of various foliar fungicides in
controlling leaf spotting diseases of cucumber and
cantaloupe.


Treatments:
Main Plots
I. Sodium azide
II. Sodium azide
III. Control
Subplots
1. Bravo
2. Phaltan
3. DuPont experimental
4. Control


Results: Incomplete


-11-


K20

120
240
360


50%
in
water
50%
in
water
50%
in
water
50%
in
water











NUTRITION PLANT POPULATION

Land 1 (C. M. Geraldson)

To evaluate combinations of plant populations, fertilizer
placements and fertilizer rates on pepper production.

Pepper CalWonder

February 25


Treatments:
Fertilizer

1
2
Bd

Fertilizer
A
B

Results: Fall 1974

Fertilizer
1
2
3

Variety Yo
Ca

Fert. Rate


Placement

Center band
2 bands
Broadcast

Rate
1000 18-0-25-2
2000


Placement
Center band
2 bands
2 bands

Lo Wonder
L Wonder

1000 #/A


Y Population C

19200 25600
19200 28800
19200 38400


500# Phos 20# Fruit


Population
19200
19200
28800


30# Units
1154
1196
1436

1280
1242

1276


-12-


Block I,

Purpose:


Crop:

Set:


#/Fruit
0.343
.339
.348

.335
.351

.347










SPACING, PRUNING, AND FERTILIZER


Block I, Land 2 (C. M. Geraldson)

Purpose: To evaluate combinations of
pruning in conjunction with
production.


Crop:

Set:


plant spacings and reciprocal
fertilizer rates on tomato


Tomato Walter, Tropic

February 21


Treatments:
Fertilizer Rate
A 1000 lbs A 18-0-25-2
B 1500
C 2000
Spacing pruning


Spacing
12"
18
24
30


(W) Pruning
fork
once
none
none


500# Phos 20# Frit/A


(T)
5 or 6
2 or 3
fork
none


Results: Fall 1974


Walter
30# Units

3262
3434
3566

3568
3344
3296
3472

3420


Tropic
# Fruit 30# Units


.320
.334
.340

.336
.346
.324
.320

.331


3116
3956
3696

3608
3680
3368
3696

3590


lbs/plant


# Fruit


.482
.516
.467

.488
.486
.527
.453

.488


-13-


11.2
16.9
20.8
28.0










SALTS AND FERTILIZERS


Block I, Land 2 (C. M. Geraldson)


Purpose:


To evaluate additions
applications on sweet


Crop: Silver Queen

Planted: February 25, March 13

Treatments:
Fertilizer Rates
a 500# 18-0-25-2
A 1000

Single Salts


Ca(N03)2
CaC12
MgS04
MH4NO3
(NH4)2SO,
(NH4)2HP04
Urea
K2S04
KC1
KN03
18-0-25-2


of single salts to basic fertilizer
corn production.


500# Super


20# Frit


500#/A


Results:
Spring Crops 600 crates/A (5 dozen ears/crate)
Fall Crops 300-400
Extra nitrogen higher yields
chlorides poorer yields
urea detrimental


-14-









SOIL pH AND FUMIGATION EFFECTS ON SOIL PESTS


Block C, Land 1 (A. J. Overman and J. P. Jones)

Purpose: To evaluate the effect of soil pH on the efficacy of
Furadan and sodium azide in improving tomato production
of land infested with rootknot nematodes, Fusarium race 2
and Verticillium wilt disease fungi.

Crop: Tomato, cv. 'Manapal'

Treated: Azide February 25, 1975
Furadan March 7, 1975

Transplants Set: March 12, 1975

Treatments: 4 replicates

Soil pH: I. 5.5
II. 7.0
III. 7.5-8.0

Chemicals:
1. Control (+ Aldrin)
2. Sodium azide 15G 30 lb ai/A
3. Furadan 10G 10 lb ai/A

Operation: A high level of pest infestation has been established in
the field over several years of cropping. Soil pH levels
have been adjusted with sulfur and lime and maintained
over several years of tomato production. Sodium azide
was broadcast in No. 2 on Feb. 25 and the entire field
was rototilled to an 8-inch depth. Furadan was broadcast
in No. 3 plots on Feb. 7 and again the entire field was
rototilled. On the same day, the field was bedded, 1
ton/A 18-0-25 fertilizer was banded on the edges of the
28-inch bed surface and 55-lb Kraft paper mulch laminated
on both sides with .25 mil poly-film was applied as a
full-bed mulch. Planting holes were cut 2 days before
setting.

Results: The test is still in progress.


-15-









IMMEDIATE AND PRE-PLANT FUMIGATION ON TOMATOES


Block B, Land 12 (A. J. Overman and J. P. Jones)

Purpose: To obtain further information on the question of whether
the combination of Furadan and immediate planting can be
economically advantageous compared to pre-plant fumigation
which necessitates at least a 2-week wait prior to planting
in land infested with wilt disease organisms and nematodes.

Crop: Tomato, cv. 'Manapal' and 'Walter'

Treated: March 4, 1975

Transplants Set: March 5 control 1
Furadan 3
March 25 rest of plots

Treatments: 4 replicates

Set 3/5: Set 3/25:
1. Control 2. Control
Z. Furadan 10G 10 lb ai/A 4. Furadan 10G 10 Ib ai/A
5. Telone 20 gal/A
6. Vorlex 35 gal/A
7. MC-33 350 lb/A

Operation: Furadan was braodcast over appropriate plots and the
entire field was rototilled. Beds were immediately
constructed and 1 ton/A 18-0-25 fertilizer banded on
the edges of a 28-inch bed surface. The fumigants were
applied through 3-chisels injected 6 inches deep on 8-
inch centers. All beds were mulched with 55 lb Kraft
paper laminated on either side with .25 mil poly-film.
Planting holes were cut the following day in plots 1
and 3; the east half of each plot was set with Walter,
the west with Manapal. Twenty days later the rest of
the plots were set.

Results: The test is in progress. Furadan is not cleared for
tomatoes.


-16-










FUMIGANT COMPARISONS


Block B, Land 13 (J. P. Jones and A. J. Overman)

Purpose: To evaluate efficacy of sodium azide and Furadan in
comparison with standard soil fumigants for control of
Verticillium wilt of tomato.


Crop:


Tomato, cv. 'Walter'


Treated: March 4, 1975

Transplants Set: March 25, 1975


Treatments: 4 replicates
1. Control
2. Sodium azide 15G + Furadan 10G 30 + 10 lb ai/A
3. Sodium azide 15G + Furadan 10G 35 + 10 Ib ai/A
4. Furadan 10G 10 lb ai/A
5. Telone C (old formulation) 20 gal/A
6. Telone C (new formulation) 14 gal/A
7. Vorlex 35 gal/A
8. MC-33 350 lb/A


Operation: Azide and Furadan were broadcast over appropriate plots,
the entire field rototilled and bedded. Fertilizer, 1
ton/A 18-0-25, was banded on the edges of the 28-inch
bed surface and appropriate plots were treated with soil
fumigants through 3 chisels 6 inches deep on 8-inch
centers. All plots were mulched with polypaper laminate.
Plants were set 20 days later.

Results: The test is still in progress.


-17-









DWARF TOMATOES

Block A, Land 8A 2 No. rows (D. S. Burgis)
9A 7 rows

Purpose: Numerous lines of dwarf tomato stocks being evaluated in
an effort to put dwarfism into the fresh market machine
harvest program. Most dwarf lines do not have the necessary
disease resistances. Plants with Fusarium and Verticillium
wilt resistance together with gray leaf spot and Alternaria
resistance will be selected. Some of these plant types will
be channeled into the AREC ornamental program for development
into pot varieties.

Planted: February 25, 1975











HERBICIDE TESTING

Block A, Land 11 and 11A (D. S. Burgis)

Purpose: To evaluate the effects of multiple spray applications of
Paraquat on yield and quality of tomatoes and peppers.
Experiment is designed so that samples of first harvest
fruit can be obtained and sampled for Paraquat (chemical)
residue.

Variety: Walter tomato; Early Cal Wonder pepper

Planted: March 7, 1975

Treatment:
1. Check uncultivated
2. Check hand cultivated
3. Paraquat 1/8 lb/A + surfactant
4. Paraquat 1/4 Ib/A + surfactant
5. Paraquat 1/2 lb/A + surfactant
6. Paraquat 1 lb/A + surfactant

Operation: Growers are using multiple applications of Paraquat.
These are applications made Zero, 7, 14 and 21 days prior
to first harvest. Residue samples are taken from first
harvest.

Work supported by Grant-in-Aid from Chevron Chemical Co.


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WATERMELON MULCH

Block A, Land 8 (5 South rows) (D. S. Burgis)

Purpose: Evaluation of watermelon production on close row spacing
comparing mulched and unmulched beds.

Planted: March 14, 1975

Variety: Charleston Gray

Treatments:
1. 55 lb Kraft paper with .25 mil layer of polyethylene on
each side
2. Conventional bed

History of Experiment:
Mulched beds treated with Planavin herbicide, fertilized
with 18-0-25-2 fertilizer at 1200 lb/A, covered and planted,
Unmulched beds were treated in same manner but herbicide
and fertilizer rotovated into formed bed and planted.





CANNING TOMATOES

Block A, Land 8 2 No. Rows (D. S. Burgis)
Land 9 2 So. Rows

Purpose: Comparison of single plant tomato lines selected for resistance
to race 2 Fusarium and Verticillium wilt

Planted: February 25, 1975

Variety: Processing tomato unreleased Florida lines

Lines Under Test:
Line No.
1 052-054
2 055-062
3 063
4 064-069

History: Tomato canning in Florida is historically a salvage operation.
Interest is changing toward the use of canning types that
can be lye peeled and whole packed. This greatly increases
the product quality. Tomato types developed in Florida
have the necessary disease resistance for growing under
Florida conditions.


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INSECTICIDE FORMULATION RATES


Block A, Land 8A (5 south rows) (D.J. Schuster, D.S. Burgis, W.E. Waters)

Purpose: To evaluate three formulations of Dipel(R) (Bacillus
thuringiensis HD-1) at three application rates for
control of worms, chiefly the cabbage looper, on
cabbage.

Crop: Cabbage, 'Copenhagen Market'

Set: February 24, 1975

Replicates: A, B, C and D

Treatments:
1. Dipel WP at 0.5 lb/A
2. Dipel WP at 0.25 lb/A
3. Dipel WP at 0.125 lb/A
4. Dipel WPHP at 0.5 lb/A
5. Dipel WPHP at 0.25 lb/A
6. Dipel WPHP at 0.125 lb/A
7. Dipel SC at 4 BIU/A
8. Dipel SC at 2 BIU/A
9. Dipel SC at 1 BIU/A
10. Check

Operation: Plots treated weekly with Dithane M-45. Plots treated with
Lannate R) (0.5 Ib/A) on March 31, 1975, to suppress worm
populations. First Dipel R) treatments applied April 7, 1975
and at weekly intervals until harvest. Worms will be
counted weekly until harvest. Yield quantity and quality
will be measured.

Results: It is thought all three formulations should give comparable
good control, although the SC formulation has not been as
effective in some tests with other pests under different
conditions.

Work supported by Grant-in-Aid from Abbott Laboratories.


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F1 HYBRID TOMATOES

Block A, Land 6, 50 foot plots at East end (D. S. Burgis)

Purpose: A comparison of F1 hybrid tomatoes

Planted: February 21, 1975

Varieties:
1. Florida OHH-3 unreleased fixed line for comparison
2. Florida Fl(A)
3. Florida Fl(A) Peto Seed Company
4. Florida F1(B)
5. Florida F1(B) Bruinsma seed Company
6. Walter commercial tomato included for comparison
7. Florida No. 152 unreleased line for comparison

Only #6 is commercial. Other items are home garden type tomatoes.










SOUTHERN PEAS

Block A, Land 6A (D. S. Burgis)

Purpose: To evaluate 7 varieties of Southern Peas available to area
U-Pick growers and homeowners.

Planted: March 15, 1975

Varieties:
1. Whipporwill
2. Cream 40
3. Pinkeye
4. Purple hull
5. Zippercream
6. Floracream
7. California blackeye #5


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OLD TOMATO VARIETIES


Block A, Land 4 (D. S. Burgis)

Purpose: To observe tomato varieties that have been grown in
Florida in years past.


Crop:


Tomatoes


Planted: February 18, 1975


Varieties:


Atkinson
Earliana
Floradel
Floralou
Grothen Globe
Homestead 24
Homestead 61
Homestead 500
Immokalee
Jefferson
Manalucie
Manasota
Manalee
Manapal


175
176
177
178
179
180
182
183
184
185
186
187
188
189


Marglobe
Marion
Pearson
Pritchard
Stokesdale
Supermarket
Tropi-Gro
Tropi-Red
Indian River
Valiant
Manahill
Walter
Tropic
Improved Walter


Operation:Because most of these varieties are not resistant to
Race 2 and Verticillium wilt, the soil was treated with
MC-33 fumigant.


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TOMATO STEP TRIALS

Block A, Land 4A (D. S. Burgis)

Purpose: These are the Southern Tomato Exchange Program (STEP)
Variety trials. Replicated trials of these are grown
at 30 or more locations in the southeast U.S. on an
annual basis for observation.


Crop:


Tomato


Planted: February 19, 1975

Varieties:
Replicated Trial
1. Floradel
2. Improved Walter
3. STEP 612
4. STEP 615
5. STEP 616
6. 908-u4
7. STEP 618

Observational Trial
1. Floradel
2. Homestead 24
3. Improved Walter
4. STEP 622
5. STEP 623
6. STEP 624
7. STEP 625
8. STEP 626
9. STEP 627
10. STEP 628
11. STEP 629
12. STEP 630
13. STEP 631
14. Florida Beefstez


Operation:


Sitterly, Clemson University
Lambeth, Univ. of Missouri
Greenleaf, Auburn Univ.
Flora Dade
Hernandez, LSU


Taylor, Vir. Exp. Sta.
Greenleaf, Auburn Univ.
Gilbert, Univ. of Hawaii
Hills, VBL, Charleston, S.
Hills, VBL, Charleston, S.
Sitterly, Clemson Univ.
Sitterly, Clemson Univ.
Sitterly, Clemson Univ.
Sitterly, Clemson Univ.
Lambeth, Univ. of Missouri


Soil was treated with MC-33 fumigant since some of these
varieties are not resistant to Race 2 Fusarium or
Verticillium wilt.


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LEAFMINER POPULATION STUDIES


Block IA, Land 1(J. P. Jones and D. J. Schuster)

Purpose: To correlate leafminer populations on tomatoes and yield.
The effect of determinate versus indeterminate tomatoes
on miner populations will also be studied.

Crop: Tomatoes, varieties 'Walter' and 'Floradel'

Planted: February 11, 1975

Set: March 10, 1975

Replicates: A, B, C, D, and E

Treatments: 1 = Vydate at #/A twice weekly
2 = Vydate at Ib/A weekly
3 = Vydate at lb/A biweekly
4 = Vydate at lb/A every third week
5 = check (no spray)

Operation:Plots are treated weekly with Dithane M-45. Applications
were first applied on March 17, 1975. Beginning April 15,
the number of active and inactive mines on 10 trifoliages
randomly selected from lower plant portions will be counted.
Quantitative and qualitative yield information will be
collected.

Results: In the past it has not been possible to correlate leafminer
populations with yield reductions except when 100% de-
foliation is approached. It is thought insect populations
were too low in previous tests. Hopefully, we will have a
large enough population this season.


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ACKNOWLEDGEMENT OF INDUSTRY SUPPORT FOR THE RESEARCH
PROGRAMS AT AGRICULTURAL RESEARCH AND EDUCATION CENTER,
BRADENTON, FLORIDA


The effectiveness of the Research Programs at the Agricultural Research and
Education 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 forms 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."

Abbott Laboratories, North Chicago, Ill.
Amchem Products, Inc., Gainesville, Fla.
American Cyanamid Co., Princeton, N.J.
Chevron Chemical Co., Orlando, Fla., Richmond, Ca., Pinetta, Fla.
Council Farms, Inc., Ruskin, Fla.
Diamond Shamrock Chemical Corp., Tifton, Ga.
Dow Chemical USA, Atlanta, Ga.
A. Duda & Son, Oviedo, Fla.
E. I. DuPont de Nemours & Co., Wilmington, Del.
Elsberry Farms, Ruskin, Fla.
Florida Flower Assn., Ft. Myers, Fla.
Florida Tomato Committee, Orlando, Fla.
The Fred C. Gloeckner Foundation, Inc., New York, NY
FMC Corp., Niagara Chem. Div., Middleport, NY
Frit Industries, Inc., Ozark, Ala.
Florida Foundation Seed Producers, Inc., Gainesville, FL
Gulf States Paper Corp., Tuscaloosa, Ala.
Geo. J. Ball, Inc., West Chicago, Ill.
Hillsborough County Marketing Commission, Plant City, Fla.
Harllee-Gargulio, Inc., Palmetto, Fla.
H. J. Heinz Co., Bowling Green, Ohio
IFAS Environmental Center, Univ. Fla., Gainesville, FL
Maule Industries, Inc., Hialeah, FL
Mallinckrodt Chem. Corp., St. Louis, Mo.
Mobil Chemical Co., Richmond, Va.
Manatee Board of County Commissioners, Highway Dept., Bradenton, FL
Manatee Fruit Co., Palmetto, Fla.
Mazzoni Flower Farms, Delray Beach, Fla.
Monsanto Co., Agricultural Div., St. Louis, Mo.
Pan American Seed Co., Palma Sola, FL
Peace River Peat Co., Bartow, FL
Paul Ecke, Jr., Encinitas, Ca.
PPG Industries, Inc., Pittsburgh, Pa.
R. J. Claprood Co., Sun City, FL
Rohm & Haas Co., Philadelphia, PA
Sierra Chem. Co., Newark, Ca.
Shell Development Co., Modesto, Ca.
Southern Agri. Chem. Co., Rubonia, FL
Speedling Incorp., Ruskin, FL
Stuaffer Chem. Co., Mountain View, CA
Sun Oil Co., Marcus Hook, PA


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University of Florida, IFAS, International Programs, Gainesville, FL
University of Florida, IFAS, Share Program, Gainesville, FL
3M Co., Minneapolis, Minn.
USDA, ARS, Market Quality Res. Div., Hyattsville, Md.
Union Carbide Corp., Columbia, S.C.
W. Atlee Burpee Co., Sanford, Fla.
West Coast Tomato Co., Palmetto, FL
Yoder Bros., Inc., Ft. Myers, Fla. and Barberton, Ohio


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