Group Title: Indian River Field Laboratory mimeo report
Title: Botrytis gray mold and yields of tomato in relation to calcium and phosphorus fertility
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Permanent Link: http://ufdc.ufl.edu/UF00056009/00001
 Material Information
Title: Botrytis gray mold and yields of tomato in relation to calcium and phosphorus fertility
Series Title: Indian River Field Laboratory mimeo report
Physical Description: 2 leaves : ; 28 cm.
Language: English
Creator: Stall, Robert E
Hortenstine, Charles C ( Charles Carpenter ), 1919-
Indian River Field Laboratory
Publisher: Indian River Field Laboratory
Place of Publication: Fort Pierce Fla
Publication Date: [1962]
 Subjects
Subject: Tomatoes -- Diseases and pests -- Control -- Florida   ( lcsh )
Tomatoes -- Yields -- Florida   ( lcsh )
Genre: non-fiction   ( marcgt )
 Notes
Statement of Responsibility: Robert E. Stall and Charles C. Hortenstine.
General Note: Caption title.
General Note: "April, 1962."
 Record Information
Bibliographic ID: UF00056009
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 69243818

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Indian River Field Laboratory Mimeo Report 62-2


April, 1962


BOTRYTIS GRAY MOLD AND YIELDS OF TOMATO IN RELATION TO
CALCIUM AND PHOSPHORUS FERTILITY

Robert E. Stall and Charles C. HortenstineA/

During the 1961-62 winter season additional information was gained on
calcium and phosphorus fertility of tomato and the relation of this fertility
to the development of botrytis gray mold (Botrytis cinerea Fr.) and yields of
fruit. Plots involved were outlined on virgin Immokalee fine sand. The pH of
this soil before liming averaged 4.7. Designated rates of both hydrated lime
and triple-super phosphate were disked in plots separately before plants were
set. Plants were fertilized with 5-0-10 and 15-0-14 fertilizers at 2200 lb./A
and 400 lb./A rates, respectively. The Manapal variety of tomato was raised.
Data are recorded in tables 1 and 2.


Table 1. Botrytis gray mold ratings and yield data.


Botrytis rating ,/
Lb./A Foliage % Plant Yield data
hydrated Lb./A disease fruit vigor Fruit Weights (lb.)
lime P205 index/ rot index/ no. Total Mr~Il. per fruit

100 3.0 2.7 6.8 719 141 78 .20
5000 300 7.3 7.2 8.5 1027 200 115 .19
oo00 8.3 9.5 9.0 1081 215 131 .20

100 5.3 4.9 7.0 860 164 81 .19
2000 300 7.8 8.3 8.0 990 179 87 .18
900 10.3 13.2 8.0 1032 196 95. .19

100 8.3 7.7 5.3 777 127 52 .16
500 300 13.3 11.4 6.0 863 138 48 .16
900 13.3 16.5 6.0 604 82 22 .14

1/ Rated on a 0-15 basis; where 0 = no disease found at 5 random locations per
plot and 15 = abundant disease at 5 random locations per plot. March 27
rating. Ave. of 4 replicates.

2/ Rated on a 0-10 basis, where 0 = no growth and 10 = all of bed covered with
foliage. March 27 rating. Ave. of 4 replicates.

3 Ave. of 4 replicates.



1/ Assistant Plant Pathologist, Indian River Field Laboratory, Fort Pierce,
Florida and Assistant Soils Chemist, Everglades Experiment Station, Belle
Glade, Florida, respectively.









Table 2. Soil and tissue analysis.


Lb./A Soil analyses Tissue analyses
hydrated lime P205 pH Cal/ pI/ Ca/ P-J/ Ca/P

100 6.45 612 1.0 1.35 .22 6.08
5000 300 6.15 750 3.8 .96 .37 2.58
900 6.18 694 10.8 1.01 .52 1.95

100 5.65 412 1.3 1.15 .25 4.55
2000 300 5.60 487 5.3 1.00 .41 2.43
900 5.35 381 10.3 .90 .54 1.70
100 5.08 231 4.8 .85 .35 2.40
500 300 4.95 193 5.0 .71 .44 1.60
900 4.85 200 29.0 .74 .96 0.72


I/ Lbs. per acre.


Ave. of 4 replicates.


2/ Percent. Ave. of 4 replicates.























IRFL Mimeo 62-2
250 copies




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