Group Title: Horticulture Department mimeo report
Title: Results from southern cooperative cucumber trials at Gainesville from 1951-1953
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Full Citation
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Permanent Link: http://ufdc.ufl.edu/UF00094981/00001
 Material Information
Title: Results from southern cooperative cucumber trials at Gainesville from 1951-1953
Alternate Title: Horticulture Department mimeo report - Florida Cooperative Extension Service ; 53-1
Physical Description: 4, 3 leaves : ; 28 cm.
Language: English
Creator: Nettles, V. F. ( Victor Fleetwood ), 1914-
University of Florida -- Dept. of Horticulture
Publisher: University of Florida, Horticulture Dept.
Place of Publication: Gainesville, Fla.
Publication Date: 1953
Copyright Date: 1953
 Subjects
Subject: Cucumbers -- Florida   ( lcsh )
Cucumbers -- Varieties -- Florida   ( lcsh )
Genre: non-fiction   ( marcgt )
 Notes
General Note: Caption title.
General Note: "Hort:VFN/gr ; 75c/12-4-53"--Leaf 7.
Statement of Responsibility: V.F. Nettles.
 Record Information
Bibliographic ID: UF00094981
Volume ID: VID00001
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 436441530

Full Text
DEC 12 1953

RESULTS FROM SOUTHERN COOPERATIVE CUCUMBER TRIALS AT GAINESVILLE FROM 1951-1953
Horticulture Department Mimeo. Report 53-1

V. F. Nettles


The acreage for the production of cucumbers in the state has increased

from 6,500 acres in 1942-k3 to 15,600 acres in 1951-52 (1), Some 2,000

additional acres in 1951-52 were planted to pickling cucumbers. Accompanying

the increase in slicing cucumbers has been the desire of growers for cucumber

varieties which would combine higher quality with greater disease resistance.

One of the more important diseases for which resistance is sought is downy

mildew Pseudoperonospora cubensis (Burk. Curt.) Rostow. Much of the efforts

of the plant breeder has been towards this goal.

In 1950, workers at Gainesville joined with 9 other southern states

in a cooperative program for the testing of commercial varieties and un-

released lines of cucumbers. The data to be presented are the results of

3 spring crops planted at Gainesville. No yield data were obtained for

1950 due to injury to the planting from cold weather.
METHODS

The cucumber varieties were grown each year in replicated trials with

l, 2 and 3 replications for 1951, 1952 and 1953, respectively. Varieties

were planted in single row plots 37 feet long in 1951, and 30 feet long in

other years with the width of the rows being 64 inches each year. The soil

of the areas used was classified as Arrendonda loamy sand and was fumigated

each year with soil fumigants prior to planting for the control of root-knot

nematodes.

Fertilization consisted of 1,200 pounds per acre of a h-7-5 fertilizer

applied to each side of the plant row at planting An additional application

was made in 1953 as a side-dressirg using 200 pounds of nitrate of soda,

(1) Owens, J.B., J.C. Townsend, Jr., G.N. Rose and D.L. Brooks.
Florida Vegetable Crops, Annual Statistical Summary 1952, Vol. VIII, 39. 125-






-2-

In order to partially check the spread of downy mildew so that yield

data could be obtained from the more susceptible varieties, weekly spray

applications of sineb at the rate of 3 pounds per 100 gallons of water

were made. Lindane, 25 percent wettable, was added to the spray as needed

at the rate of 1 pound per 100 gallons for the control of pickle worms.

Plantings were made March 2, 1951, March 10, 1952 and March 12, 1953.

After the beginning of the harvest season, pickings were made at 2-

to 3-day intervals, at which time the fruits were graded and weighed.

RESULTS

Each season data were obtained on the yielding ability of the varieties,

time of harvest, characteristics of fruits and vines and relative resistance

to downy mildew.

In the 1951 season relatively good yields were obtained with all

varieties in the trial. These yields were obtained by 10 pickings made

at 2- to 3-day intervals throughout the season. The variety Marketer,

which was used as a commercial standard, produced a significantly greater

total marketable yield than the varieties Cubit, Palmetto, Santee (Regular),

Santee 5-2 and the breeding line South Carolina II. These yields are shown

in Table 1 with the other data from the trial. The fancy fruits from the

variety Marketer were found to be equivalent in weight to any of the

varieties in the test but was found to be shorter than Cubit and Santee

(Regular). Marketer, Cubit and A&C were found to be susceptible to downy

mildew whereas the other strains showed varying degrees of resistance.

Upon considering all factors, the numbered lines South Carolina 10-1, 10-3

and the variety Marketer were rated as the best varieties.

The yields of the cucumber varieties for the 1952 season are shown

in Table 2. These yields were lower than those obtained during the trial

in 1951. From 11 pickings the yield of total marketable cucumbers from






-3-


Marketer was exceeded significantly by Palmetto and the lines South Carolina

10-3, 15B, 16A and 17A. In length of fancy fruits the varieties and lines,

Santee, South Carolina 10-3 and 16A were equivalent to Marketer; however,

other varieties were significantly longer. Palmetto and South Carolina 10-3

were considered the most uniform of the varieties in the test. The numbered

lines South Carolina 14, 15A and 15B had poor shape due to a small gourd-

like stem end. Marketer and Vaughn Hybrid were particularly susceptible to

downy mildew.

The spring trial of 1953 consisted of 9 varieties and/or lines of

cucumbers. Hot, dry weather at the time of planting and during maturity

greatly reduced the yields and these were below normal for the Gainesville

area. The variety Marketer in this test was off-type and this was true at

other locations in the Southern Cooperative Tests. Considering all of the

factors presented in Table 3 the lines South Carolina 10-3, 15B-3 and 20-A

appeared to be the more promising cucumbers. The yield of total marketable

cucumbers from 6 pickings of these 3 lines were comparable. The line South

Carolina 16-C, 18 and 20-A produced fancy fruits of a shorter length than

the commercial varieties in the test. Marketer was found to be the most

susceptible to downy mildew. The variety Niagara, although not grown in

the replicated trials, was observed to be also susceptible to this disease,

DISCUSSION

Marketer, although highly susceptible to downy mildew, has produced

commercially acceptable fruits and can be expected to give good results

grown under a good spray schedule for that disease. Palmetto, a vLriety

showing resistance to downy mildew, has produced larger yields of fruits in

seasons with high incidence of downy mildew. Due to the off-type of the

Marketer variety in 1953, no comparison can be made with this variety for

that year.










The numbered line, South Carolina 10-3, which has shown resistance to

downy mildew, has consistently produced a high yield of commercially

acceptable cucumbers. When this line or similar lines showing comparable

characteristics are released they will merit trial by the commercial

cucumber growers in Florida.






TABLE 1. RESULTS OF REPLICATED CUCUMBER TRIALS AT GAINESVILLE SPRING 19$1


FRUIT CHARACTERISTICS VINE VIGOR ALL
: Season a a : -
Yield a- :: : or Shape a : : CHARACTERISTICS. Downy
a : : : : : : : : : a: : : .Mildew
4- 4 P e
Sbu./acre OH : ;t : : : : ?: Resis-
Ia: >a : : 3 : c 4t g .t .: : .tance *

:Mktbl. :Fancy: : : : : : : .g o
":t "a_ a. o'.. ..J: --. o -. o. :. i:c-a _______

Marketer 388 299 I 067 7.7 I __ X __ I __ X iX
A&C 38 261 I_ .7 6 __ 6 X __ x x
Palmetto 280 239 I .7 8. X 0 oX X 2






Santee5 -2 288 220 .78.l I __ X X X -
: Total .- . .. : o: W o. : m ^
:Nktbl, :Fancy: :n! CIO






Marketer 373 287 x .67 7.7 x x x x 3
A-C 358 261 x 7h 76 X X -X I X
Palmetto 284 239 X .75 8,1 x X X x X 2

Santee(Reg. 312 23C X .77 8,4 x x x X 3
Santee 5-2 288 220 X .7518.1 x x x x 4
S. i0-I 373 287 X .67 81 x x X x 3

S.C. 10-3 387 307 I .69 7.6 X X X X 2
S.C. 11 248 185 X .68 7.7 x X X X 3

Cubit 337 254 X o79 8.8 X __ __
Least diff,
for odds 19:1 45 N.S. N.S, 0.1

* 0 Immune
1 Highly resistant
2 Moderate resistant
3 Slight resistance
Moderate susceptibility
5- Highly susceptible







TABLE 2. RESULTS OF REPLICATED CQJCMBER TRIALS AT GAINiSVILLE SPRING 1952
: SASON FRUIT CHARACTERISTICS All:
: Yield SESON : Color Shape VINE VIGOR :Characteristics:
: : : : : : : 2 2 : : :
iBu./Acre : : 2: : :: : o : Dowry
S* :|: :::: : : g: : ~:g s: Mildew
Variety s 2 : a: : : : : 0 ::: : : : lResia-
9 : k : "0 48-1 1 Resis-
S: 1 0 r o i -: : :: tance
sTotal : : s : g: : t : ao
:Mktbl,:Fancy: : : < : : : a a : : : 2 : a L 0


Marketer 124 70 X .33 7.3 I I I X
Palmetto 256 188 .36 8.1 __ X 1 I X 2
Santee 115 93 X .38 7.6 X X I X I 2
Vaughn Hybrid 131 72 x .32 7.9 x x I
S.C. 10-3 288 207 X .33 7.6 X 1 1 X 2

S.C. 14 169 106 X .37 8.4 x x x x 2
S.C. 15A 167 98 X X .38 8.6 X XI X 2
S.C. 15B 323 209 X X .37 8.4 x x X 1

S.C. 16A 310 200 X ,35 7. x x X X 1
S.C. 17A 250 71 1 .38 8.5 x X X x 2
Least Diff.
for odds
19:1 3118 81 1 0 .


* 0 Immune; 1 Highly resistant;

5 Highly susceptible.


2 Moderate resistant; 3 Slightly resistant; U Moderate susceptible;







TABLE 3. RESULTS OF REPLICATED CUCUMBER TRIALS AT GAINESVILLE SPRING 1953


: SEASON ,T FIT CHAHRACTERISTICS VINE VIG a ALL s
: ASON :- : Color : hape :CHA-ACTEBISTICS, Domy
SYIEID s: s : : : : s : 2 : esMildew
S, : 3 2 a :2 t aResi-
ABu./Aore a : 0: : t t t t t :: : tance *
Variety ta g 1 0 S t dI s d a 4)
Ttal : s : s 0: s : e 5: 5 : :s a : : s ,: '1
S I S g 0 : -j : 8 0 x t 3
s 4 3 2 2 3 S 3 t sS2: a
Total; s g tSoI t t x tB Of o
:MktbleFancy t t t t t t s 2 2 t 2 ar
tS_ I ___________I ___ _ S __ 2 : 2 3

Marketer 27 16__ X 49 7*.0 I I L I X 4.0

to 25 x 1 48 7.o0 I -x I 2.0
Santde 33 16 X_ 1 x x x 3.0
s.C. 10.3 4o 87 x .*4 6.6 I x x I_ x x 2o0

S.C. 153B3 151 86 x __ 50 6.9 x __ __ x 2.0
s.c, 16.C 5~L 26 Ix .45 6.3 x x- x X x x 2.0
s.C. 18 79 X .49 6.2 I X I Ix 3.0
s.C. 19A-2 98 61 .50 6.8 I I I 2.0
s.C. 20A 107 63 X .1 5 6.2 x I x I 2.0
Least Diff,
for odds 19:1 58 37 N.S. 0.5

S0 Immne; 1 Highly resistant; 2 Moderate resistant; 3 Slightly resistant; 4 Moderate susceptible;


5 Highly susceptible.


Hort:VFN/gr
75W/12-4,53




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