Group Title: Mimeo report - University of Florida Everglades Experiment Station ; 59- 19
Title: Experiments involving pestiole cracking in emerald celery and celery seedbed pH adjustment with sulfur
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 Material Information
Title: Experiments involving pestiole cracking in emerald celery and celery seedbed pH adjustment with sulfur
Series Title: Everglades Station Mimeo Report
Physical Description: 4 leaves : ; 29 cm.
Language: English
Creator: Burdine, Howard W., 1909-
Guzman, V. L ( Victor Lionel ), 1914-
Everglades Experiment Station
Publisher: Everglades Experiment Station
Place of Publication: Belle Glade Fla
Publication Date: 1959
 Subjects
Subject: Celery -- Varieties -- Florida   ( lcsh )
Soils -- Sulphur content -- Florida   ( lcsh )
Genre: non-fiction   ( marcgt )
 Notes
Statement of Responsibility: H.W. Burdine and V. L. Guzman.
General Note: "May 6, 1959."
General Note: Caption title.
 Record Information
Bibliographic ID: UF00067557
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 65284377

Full Text






Everglades Station Mimeo Report 59-19


EXPERIMENTS INVOLVING PETIOLE CRACKING IN EMERALD CELERY
AND CELERY SEEDBED pH ADJUSTMENT WITH SULFUR

H. W. Burdine and V. L. Ouzman

Cracking in Emerald Celery

Perhaps the most serious limitation to wide usage of Emerald Celery variety
is its tendency to crack during the winter months of December, January, February
and even March. Growers have tried increasing boron content of fe:-i.izer but
this has not seemed particularly effective. Experiments involving is. applica-
tions of varying levels of boron were severely damaged during the cold winter of
1957-58, and consequent slow growth resulted in no differences in the amount of
cracking observed.

Table 1 gives summarized results of experiments conducted during the 1956-
57 season involving applications of fertilizers that might increase brittleness.
Table 2 summarizes results of a 1958-59 experiment involving rates of
nitrogen sidedressing. Treatments B, C and D involve all the nitrogen applied
in two applications. Treatments E, F and G involve equal total amounts of
nitrogen with applications on a weekly basis.

In general supplementary nitrogen seers to add to severity of cracking when
a corresponding growth response occurs.

Foliar applications of boron have decreased percentage of cracking plants
as well as severity of cracking. Emerald in its present form grown for December,
January and February harvests remains, however, something of a risk.

Sulfur Applications on Celery Seedbeds Involving Utah 52-70 and S. pascal 259-19.

Data in Table 3 gives results of four seedbed experiments with two varieties
of celery grown on beds with pH adjusted to varying levels with sulfur. Plants
of these two varieties of celery have shown little response to pH adjustment as
will be noted.

Celery varieties have been shown to differ greatly in their response to
varying levels of boron, magnesium, sodium and nitrogen in the nutrient media.
One, therefore, might expect to find variety differences in respoale to pH
environment. It also follows that one should not necessarily assume that all
green celery varieties will give this response.


May 6, 1959










Table 1. Effects of Extra Sidedress Application of Nitrogen and Potassium with Foliar Applications of Boron
on Cracking in Emerald Celery.

Duda's Harvested 1/1/57 Duda's Harvested 2/8/57 Wedgworth' s-Farvested 3/19/57
No. No. No.
Crack. Total 1 Crack. Total Crack. Total
Crack Petioles fresh Crack Petioles Fresh Crack. Petiole fresh
Treatment Plants Per Plant vt. Plants Per plant Weight Plants Per Plant Weight

Nitrogen sidedress 40 2.7 102 80 2.9 159 84 2.8 166
4 Boron Foliar app. 17 1.9 99 75 2.5 156 59 1.3 161

Potassium sidedress 16 1.9 57 88 2.5 157 90 4.6 160
4 Boron Foliar app. 7.6 2.1 63 6 0 2.4 152 70 3.1 161

Nitrogen 4 Potassium 36 2.8 104 79 2.9 162 86 2.9 152
4 Boron Foliar app. 30 2.5 108 70 2.8 172 73 2.3 154

No additional treat. 13 1.4 65 77 3.1 152 87 3.7 165
Boron Foliar app. 2 0.8 58 72 3.1 151 56 1.7 159

N = sidedressed 6 & 9th week after setting total 100 Ibs. N/A.

K sidedressed 6 & 9th week after setting total 100 lbs. K/A.

Boron 6 weekly foliar applications totaling 12 Ibs./A boric acid
(equiv. to about 18 lbs. of borax, or about 10 Ibs. Solubor.)









Table 2. Effects of Rates of Nitrogen Sidedress Application and Foliar Applications of Boron on Cracking
in Emerald Celery, at Duda's, Fall 1958.



% No. crack.
Foliar Av. Total Crack. Petioles
Nitrogen Treatment Boron Aft. per plot Av. Plants Av. Per plant Average


None
None


33 Ibs. N 2 app.
33 lbs. N 2 app.


66 lbs. N 2 app.
66 lbs. N 2 app.

99 Ibs. N 2 app.
99 Ibs. N 2 app.

33 Ibs. N-5.5 Ibs. per week
33 Ibs. N 5.5 lbs. per week

66 lbs. N 11 Ibs. per wk.
66 lbs. N 11 Ibs. per vk.

99 Ibs. N 16.5 Ibs. per wk.
99 lbs. N 16.5 lbs, per kk.

60 Ibs. urea 6-10 Ibs. app.
to foliage (27 lbs., N)

Boron applied as boric acid, a
Nitrogen as ammonium nitrate.


no
yes

no
yes

no
yes

no
yes

no
yes

no
yes

no
yes

no
yes


111
113

123
115

112
121

123
125

118
109

123
124

117
124

111
119


112


119


116


125


112


2.2
1.8

2.8
2.5

2.5
2.4

4.0
2.8

2,5
1.7

2.3
2.2

2.7
2.2

2.7
2.2


121


115


total of 12 Ibs. in 6 app. (equiv. to about 18 lbs. borax or 10 Ibs. Solubor).


2.0

2.7


2.5


3.4


2.3


2.5


2.5









Table 3. Response of Celery Seedlings to pH Adjustment with Sulfur, Fall 1957 and 1958.


1. Evans & Rogers Variety 52-70H


2. Chase & Co. Var. 259-19


Sulfur rate


Final
DH


Wt.-grams Sulfur rate
Sq. foot


Final
pH


Wt.-grams
Sq. foot


0
500# ac.
1000# ac.
1500# ac.


1. 0
2. 100#/A.
3. 2000/A.
4. 3000#/A.


3. Vandergriff & Williams Var. 52-70


4. Chase & Co. Var. 259-19


Sulfur rate


Final Wt.-grams Sulfur rate
DH Sq. foot


Final
DH


WS.-grams
So. foot


215
223
221
210


1. 0
2. 1000# ac.
3. 2000# ac.
4. 3000# ac.


6.11
5.89
5.54
5.26


354
348'
348
387


LSD .05 = 24


EES 59-19
250 copies


6.44
6.30
6.18
6.12


300
291
300
297


6.37
6.08
5.71
5.33


0
2000#
4000#
6000#


426
460
454
438


7.03
6.70
6.23
5.81


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