Group Title: NFES mimeo rpt.
Title: Norticultural trials with cucumbers
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Permanent Link: http://ufdc.ufl.edu/UF00066020/00001
 Material Information
Title: Norticultural trials with cucumbers
Series Title: NFES mimeo rpt.
Physical Description: 5 leaves : ; 28 cm.
Language: English
Creator: Young, H. W ( Harold William ), 1930-
North Florida Experiment Station
Publisher: North Florida Experiment Station
Place of Publication: Quincy Fla
Publication Date: 1962
 Subjects
Subject: Cucumbers -- Florida   ( lcsh )
Cucumbers -- Fertilizers   ( lcsh )
Cucumbers -- Varieties   ( lcsh )
Cucumbers -- Planting   ( lcsh )
Genre: non-fiction   ( marcgt )
 Notes
Statement of Responsibility: by H.W. Young.
General Note: Caption title.
 Record Information
Bibliographic ID: UF00066020
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 69156027

Full Text
/06
F 3 t.
NORTH FLORIDA EXPERIMENT STATION
Quincy, Florida

March 19, 1962

NFES MIMEO REPORT 62-7


HORTICULTURAL TRIALS WITH CUCUMBERS

by H. W. Young
Assistant Horticulturist


Trials with cucumbers at the North Florida Experiment Station include
variety studies, fertilizer tests, and observations on shaded and unshaded
plantings.

VARIETY TESTS

In this report only results from plantings during the fall of 1960 are
included in Table 1. Excessive rainfall shortened the harvesting period of the
plantings in the spring of 1960 and as a result the data were incomplete. Variety
trials were not conducted in 1961 but will be resumed in 1962.

FERTILIZER TESTS

In conjunction with other test crops cucumbers are being grown cn a
series of pH, N, P205 and K20 plots. The results of tests are shown in Table 2.

SHADE PLANTINGS

A number of vegetable crops are being compared in plots Shaded with
cheesecloth and unshaded plots. The results of the cucumber yields are shown in
Table 3.

DISCUSSION

Varieties.--In general Marketer has been satisfactory in spring plantings
The fruit quality and yields meet the market demands, however, since the variety
is susceptible to downy mildew, this disease affects fall plantings. Weekly
sprayings are essential to control mildew as well as other diseases.

Ashley is downy mildew resistant and has been more satisfactory for fall
plantings. Palomar has yielded well at Quincy, usually has slightly better color
than Marketer or Ashley, and is nearly as downy mildew resistant as Ashley.
,-f'CfU J
Polaris, a new variety, has not been extensively test .ts 3 n
however, observations to date would indicate that it is worthy o ia Thi
variety has resistance to anthracnose, downy mildew and powdery dew.

Fertilizer Test.--From information to date it would a ar thAthe b
yields can be obtained at a soil pH of about 6.0. In general, e the Wil
is about 6.0 and the soil phosphorus level is rather low an appl alon dl
pounds of 6-8-6 per acre has been satisfactory. Where the soil ph
is high 1,000 pounds of 8-8-8 has been sufficient. Half of this fer an






-2-


be applied in bands to the sides of the row at planting time and the other half
just after the plants have begun to vine. Rainfall and irrigation will determine
if supplemental applications are needed. In general, approximately 200 pounds per
application of 15-0-15 or equivalent has been satisfactory for these supplemental
applications. It has been necessary to make this sidedress application from 1 to
4 times. Should the soil potash level be very high, it may be sufficient to use
only ammonium nitrate as the sidedress application. However, misshapen fruit may
result from excessive nitrogen applications. It should be kept in mind that in
addition to treatments, rather high fertilizer applications were made to all
treated plots.

In all cases a soil test is desirable before the crop is planted so that
recommendations can be supplied by the county agent or extension specialist.

Shaded Plantings.--Better yields, quality and longer harvesting seasons
have been obtained by tying the cucumber plants to twine suspended from wires
between poles. (Tied similarly to shade tobacco.) It is necessary to periodically
wrap the vines on the twine as the plants do not attach themselves to the supports
as pole beans do. Therefore, the extra cost of operation must be considered. The
shaded plots have consistently outyielded the unshaded plots as well as the
untrained plantings.

Special Problems.--The most prevalent and disastrous disease has been
soil rot (Rhizoctonia and/or Phythium). In wet seasons normal disease practices
have failed to eliminate soil rot as a major factor in the reduction of marketable
yield. Plastic mulch covering has eliminated the problem. Sufficient data is not
yet available to determine if this method is practical for cucumbers in the area.

Tying the plants to trellis supports also eliminates the problem. The
grower must determine if the cost warrants such production.










Table 1. Results of cucumber trials at
fall of 1960. Planted August
1960, to October 5, 1960.


North Florida Experiment Station in the
5, 1960; harvest period September 20,


Marketable Frut (2) % of fruit
yield Aves (3) with
bushels (1) wti Lgth. Diam. Dowhy fhizoctonia
Variety per acre Maturity lbsb int in. Mildew (Soil rot)

Marketer 398 4 .811 .10.2 3.0 5 754
Ashley 409 4 .823 8.5 2.7 0 84.9
Palomar 541 3 .826 11.0 2.7 1 77.2
Polaris (SC53B) 452 2 .722 9.7 2.6 0 78.1
SC56A 402 4 .829 9.0 2.7 0 78.0
SC56B 584 2 .754 9.2 2.7 0 74.5
SC56C 505 2 .722 9.5 3.0 0 75.1
SC57 445 1 .765 9.7 3.7 0 78.5
SC58A 323 4 .733 9.0 2.5 0 68.9
SC58B 567 1 .772 8.7 2.6 0 76.9
SC58C 494 3 .887 9.0 2.5 0 69.5


() Maturity

(2) Fruit:


1 Early; 2 Medium early; 3 Medium; 4 -
5 Late


Medium late;


Mature fruit measurements. Marketing size will be somewhat smaller.
These figures are shown for comparison of varieties.


(3) Downy Mildew: 0 immune; 1 highly resistant; 2 moderately resistant;
3 slight resistant; 4 moderately susceptible; 5 highly
susceptible.


r:










Table 2. Yields, harvest dates and periods of cucumbers on plots at North Florida
Experiment Station treated with various rates of fertilizer.


pH Nitrogen K20

Year 1961 1960 1961
Season Fall Spring Spring
Variety Marketer. Ashley Marketer
Date Planted 8/14 3/29 4/18
Harvest:
First 10/17 5/24 6/8
Last 10/27 6/10 6/30
Days to first
harvest 64: 56 51
Harvest period
days 11 18 23

Marketable Lbs, N Marketable Lbs. K20 Marketable
pH bus./acre per acre bus./acre per acre bus./acre

7.1 113 0 348 0 298
6.2 124 30 403 25 318
5.9 109 60 348 50 271
5.3 84 90 403 75 386
5.0 63 120 371 100 278
4.6 22 150 379 125 309

Overall fertilization in addition to treatments pounds
per acre
N 46 180 226
P205 -126 216
K20 -- 269 165
CaO -- 536 536
MgO -- 338 338












Table 3. Yields, harvest dates ard periods of cucumbers
shaded and Utishaded plots at Quincy, Florida.
trained on trrelis,


Year
Season
Variety
Date Planted
Harvest:
First
Last
Days to first
Harvest
Harvest period
days


1959
Spring
Marketer
3/27

5/22
6/24

55


1961
Spring
Marketer
3/7

5/23
6/20

77


in
Plants


1961
Fall
Marketer
8/14


10/11
11/8


Marketable
Yield bus./acre

Shaded 963 780 255
Unshaded 679 564 128


HWY
250 CC
3/19/62




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