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Performance of Slicing Cucumber

Cultivars, Plateau Experiment Station,

2000

Charles A. Mullins

 

Interpretative Summary


Most cultivars that were evaluated in the trial performed well. ‘Dasher II’ was more productive than ‘Prolific’, ‘Slice King’, ‘Sweet Slice’, and ‘XP 1901' in marketable yield. Fruit of ‘SRQS 2387', ‘SRQS 2389', ‘Vlasstar B’, ‘XP1901', and ‘XP 1904' was relatively rough while fruit of ‘Sweet Slice’ was among the smoothest. Fruit of ‘Speedway’, ‘Thunder’, and ‘Daytona’ was darker than several of the other cultivars.

Introduction


Cucumbers are grown on a rather limited acreage in Tennessee. Cucumbers have been identified as a crop that has potential for increased production. The market prefers dark green, straight, and long cucumber fruit. The more popular types of cucumbers grown for fresh market are standard slicing type. Burpless cucumbers have become more popular in recent years, and are milder than the standard slicing cultivars. Pickling type cucumbers are also grown for fresh market. Pickling type cultivars usually are shorter, lighter in color and have smaller seeds and seed cavities than slicing type cultivars. Many of the newer cucumber cultivars have resistance to many diseases. An experiment was conducted at the Plateau Experiment Station at Crossville, TN in 2000 to evaluate performance of 15 cucumber cultivars for fresh market usage.

Materials and Methods


The site was prepared for planting by conventional tillage in late April. Fertilizer was broadcast at 300 lb/A of 15-15-15 before final disking on May 8. Four foot wide black plastic mulch was laid on six ft centers on May 9. Plots were direct seeded on May 9. Plot size was one row, 12 ft long and contained 8 plants. Experimental plot design was a randomized complete block with four replications. Row middles were cultivated on June 26. Carbaryl (Sevin XLR) at 1 lb ai/A was applied for insect control on May 17. Esfenvalerate (Asana) was applied for insect control on June 9, June 12, June 23, and July 13. Mancozeb (Dithane DF) at 1.6 lb ai/A and chlorothalonil (Bravo) at 1.5 lb ai/A were applied on June 12, June 23, July 3, and July 11. The cucumber plants were staked with a 54 inch stake driven between each two plants and a string trellis was extended between stakes and was used for support of the cucumber vines.
Twelve harvests were made between June 30 and July 26. Yields were recorded by number and weight of marketable, oversize, and cull fruit. Fruit were measured for length and rated for characteristics at the July 12 harvest date. Three to five fruit were used for these determinations. Ratings were made on a 1 to 10 scale with 10 being the smoothest, straightest, or darkest in appearance.

Results and Discussion


The cucumber cultivars performed well, but bacterial wilt developed on many plants late in the production season. This disease reduced the number of harvests and total yield for the trial, as plant productivity stopped when the disease occurred. Although five insecticide applications were made, several cucumber beetles were observed on June 23, and an application of Asana was made after the insects were observed. Those beetles likely caused the infestation of bacterial wilt.
‘Dasher II’ produced a higher yield in marketable tons per acre than ‘Prolific’, ‘Slice King’, ‘Sweet Slice’, and ‘XP 1901' (Table 1). ‘Vlasstar B’ and ‘XP 1904' were among cultivars that produced the highest number of marketable fruit per acre. ‘Vlasstar B’ produced a rather high level of oversize fruit in tons and number per acre. The weight of cull fruit did not vary due to cultivar. ‘Thunder’ was among cultivars that produced the largest number of cull fruit per acre.
Fruit length was longer for ‘Sweet Slice’ than for all cultivars except ‘Prolific’, ‘Speedway’, and ‘Thunder’(Table 2). ‘Vlassar B’, ‘XP 1901', and ‘XP 1904' produced shorter fruit than the other cultivars. These three cultivars are pickling type which normally produce shorter fruit than the standard slicing cultivars. ‘Sweet Slice’, a burpless type cultivar, was smoother than ‘SRQS 2387', ‘SRQS 2389', and the pickling type cultivars; ‘Vlasstar B’, ‘XP 1901', and ‘XP 1904'. Pickling type cultivars are usually less smooth than slicing type cultivars. There were no significant differences among cultivars for the rating of fruit curvature. ‘Speedway’, ‘Thunder’ , and ‘Daytona’ were among cultivars rated darkest for fruit color.
Table 1. Yield of cucumber cultivars evaluated at The University of Tennessee Plateau Experiment Station at Crossville, 2000.

 

Cultivar

Marketable
yield tons/A

Oversize yield tons/A

Cull yield tons/A

Marketable yield
(#/A)

Oversize
yield
(#/A)

Cull yield
no./A

Dasher II

16.8 az

3.1 abcd

1.1 a

77440 ab

6807 bc

9075 abc

Prolific

10.9 bcd

3.6 abc

0.3 a

54753 cde

7412 bc

2723 d

Slice King

9.4 cd

2.9 abcd

0.9 a

45375 e

5899 bc

2573 d

Slice Max

14.8 ab

4.4 ab

0.7 a

70483 a-e

8017 abc

4992 bcd

Speedway

13.6 abc

1.5 d

0.9 a

75323 abc

3328 c

8773 abc

SRQS 2387

11.9 abcd

2.1 cd

0.5 a

61710 b-e

4387 c

5597 a-d

SRQS 2389

14.2 abc

2.3 bc

1.0 a

73627 abc

5445 bc

9075 a-d

Sweet Slice

11.6 bcd

2.6 bcd

2.4 a

43712 e

4689 bc

2573 d

Thunder

14.2 abc

1.6 bc

1.0 a

74264 abc

3933 c

11041 a

Vlasstar B

13.0 abc

4.8 a

1.1 a

75777 a

12403 a

9831 abc

XP 1901

7.6 d

1.4 d

0.7 a

48713 de

4084 c

9378 abc

XP 1904

12.0 abcd

3.1 abcd

0.7 a

89994 a

9983 ab

10890 ab

Turbo

12.5 abc

2.5 bcd

0.5 a

64585 b-e

11495 a

4689 cd

Indy

14.5 abc

1.6 bcd

0.7 a

76230 abc

4084 c

6504 a-d

Daytona

15.1

1.8 bc

0.5 a

76230 abc

3782 c

5748 a-d

z Means within a column followed by the same letter are not significantly different at the 0.05 level of probability, Duncan’s multiple range tests.
Table 2. Fruit length and quality ratings of smoothness, curvature, and color for cucumber cultivars at The University of Tennessee Plateau Experiment Station at Crossville, 2000.

 

Cultivar

Fruit length
inches

Smoothness
ratingy

Curvature
ratingy

Color
ratingy

Dasher II

7.44 cz

8.25 ab

8.0 a

7.75 bc

Prolific

8.06 abc

8.25 ab

8.0 a

8.00 abc

Slice King

7.44 bc

8.25 ab

7.8 a

8.00 abc

Slice Max

7.88 bc

8.25 ab

7.8 a

8.50 ab

Speedway

8.00 abc

7.25 abcd

7.0 a

8.75 a

SRQS 2387

7.94 bc

7.0 cd

7.0 a

8.00 abc

SRQS 2389

7.88 bc

6.75 cd

7.2 a

8.25 ab

Sweet Slice

8.81 a

8.05 a

7.0 a

8.00 abc

Thunder

8.00 abc

7.75 abc

7.5 a

8.75 a

Vlasstar B

5.62 d

6.75 cd

7.5 a

6.50 d

XP 1901

5.25 d

6.50 d

7.2 a

6.50 d

XP 1904

5.56 d

7.00 d

7.0 a

7.75 bc

Turbo

7.62 c

7.25 bcd

8.0 a

8.50 ab

Indy

7.75 bc

7.50 abc

7.2 a

8.50 ab

Daytona

7.88 bc

7.50 abc

6.2 a

8.75 a

y Ratings on a scale of 1 to 10, 10=smoother, straighter, or darker color.
z Means within a column followed by the same letter are not significantly different at the 0.05 level of probability, Duncan’s multiple range tests.

Copyright © 1999 by The University of Tennessee. All rights reserved.

This research represents one season's data and does not constitute recommendations.  After sufficient data is collected over the appropriate number of seasons, final recommendations will be made through research and extension publications.

 

 

 

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