Oakes Irrigation Research Site
Carrington Research Extension Center * North Dakota State University
P.O. Box 531, Oakes, ND 58474-0531, Voice: (701) 742-2189, FAX: (701) 742-2700, email: rgreenla@ndsuext.nodak.edu

 

PUMPKIN VARIETY PERFORMANCE TRIAL

Richard Greenland, Leonard Besemann and Delores Anderson


Results summary

Table 32. Pumpkin yields

Table 33. Pumpkin fruit characteristics


          Pumpkins grow well in North Dakota. Early maturing pumpkins are usually best, but later maturing ones do well in some years. In this study we evaluated 10 pumpkins.

MATERIALS AND METHODS


Soil:

Hecla sandy loam and Embden sandy loam; pH=7.2; 2.9% organic matter; soil-K and soil-P were very high; soil-S was low.

Previous crops:

2001 - soybean; 2000 - potato; 1999 - carrot.

Seedbed

preparation:

Coulter chiseled 15 inches deep on April 18. Multiweeded (field cultivated) on May 16 to incorporate fertilizer and smooth seedbed.

Planting:

Seeds planted 1 ft apart in rows 9.5 ft apart on May 17. On June 12 thinned to an in-row spacing of one plant every 3 ft.

Plots:

Plots were 20 ft long by 8 ft (one row) wide.

Fertilizer:

On April 18, broadcast 18 lbs N/acre and 20 lbs S/acre as 21-0-0-24. Side dressed 50 lbs N/acre as urea on June 13.

Irrigation:

Surface drip irrigation as needed.

Pest

control:

Weeds were controlled by rototilling and by hand weeding. Sprayed Asana (8 oz/acre on Jun 10, Jun 18, Jun 25, and Jul 2) and Ambush (8 oz/acre on Jul 11 and Jul 30) to control cucumber beetles.

Harvest:

Hand harvested Sep 24 to 26.

RESULTS


           Hybrid Pam had the highest quality, number and percentage of marketable pumpkins. Rocket had the greatest marketable yield. Overall uniformity of Hybrid Pam, Racer and Trickster was excellent. Howden and Trax Field did not mature before harvest.


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Table 32. Pumpkin yields for the Oakes Irrigation Research Site 2002 pumpkin performance trial.

Name

Seed

 source1

Marketable

Green2

Total3

Percent marketable

number

yield

number

yield

number

yield

 

 

fruit/A

tons/A

fruit/A

tons/A

fruit/A

tons/A

%

 

Appalachian

PS4

1200 e5

10.8

  880

 3.5

  4240 cde

22.7 bcd

48

Howden

RU4

  480 e

 7.1

1840

11.6

  3280 de

19.6 cd

37

Hybrid Pam

SW

5450 b

14.6

  640

 1.5

  7130 b

17.0 cd

86

Merlin

HS4

1600 cde

13.0

1600

 7.1

  5200 bcd

25.6 abc

57

Racer

JS

2560 cd

16.0

1280

 4.1

  5360 bc

24.1 bc

66

Rock Star

JS

1280 de

14.9

  720

 6.2

  3360 de

33.8 a

44

Rocket

JS4

2720 c

17.9

1040

 5.0

  5930 bc

30.7 ab

58

Trax Field

SW

  880 e

11.4

  960

 7.9

  2641 e

24.4 abc

49

Trickster

RU4

7210 a

10.3

1280

 1.2

10250 a

13.2 d

77

Trojan

SW

1200 e

14.3

  560

 5.4

  3040 e

23.0 bc

66

 

Probability

<.0001

0.22

0.34

0.14

<.0001

0.008

0.053

C.V. (%)

37

40

71

90

26

29

35

1See Appendix A for a list of seed sources.

2Green: pumpkins that were immature at harvest time.

3Includes those that were diseased, odd shaped, etc.

4This seed was furnished by Norman Haak

5Values in the same column followed by the same letter are not significantly different (0.05 level). If no letters in column,

  there were no significant differences between values in that column.


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Table 33. Pumpkin fruit characteristics for the Oakes Irrigation Research Site 2002 pumpkin performance trial.

Name

Seed source1

Fruit size

Handle (stem)2

Fruit color3

Fruit shape4

Uniformity

Overall score

 

 

lbs/fruit

------------------- 1 to 5 -----------------

1 to 3

1 to 10

 

Appalachian

PS5

18.0 c6

2.4 d

3.3

3.6 a

2.1 cd

4.9 cd

Howden

RU5

31.0 a

2.4 d

3.2

3.6 a

2.6 abc

6.5 abc

Hybrid Pam

SW

 5.3 e

5.0 a

3.8

2.9 c

2.9 ab

7.9 a

Merlin

HS5

16.0 cd

3.8 bc

3.5

3.6 a

1.4 e

5.1 cd

Racer

JS

12.6 d

4.4 ab

3.3

3.0 bc

2.9 ab

7.3 ab

Rock Star

JS

22.9 b

3.3 c

3.5

3.8 a

2.5 abc

6.1 bcd

Rocket

JS5

13.4 d

3.6 bc

3.0

3.5 ab

2.3 bc

7.0 ab

Trax Field

SW

25.6 b

2.3 d

3.0

3.8 a

1.5 de

5.0 cd

Trickster

RU5

 3.0 e

5.0 a

3.5

3.0 bc

3.0 a

7.8 ab

Trojan

SW

23.0 b

2.4 d

3.0

3.4 abc

2.0 cde

4.5 d

 

Probability

<.0001

<.0001

0.06

0.01

0.0001

0.001

C.V.(%)

18

17

11

11

20

19

1See Appendix A for a list of seed sources.

2Handle (or stem) - 1 to 5; the longer and thicker the handle in relation to the size of the pumpkin, the higher the score.

3Color - 2 = light orange, 3 = medium orange, 4 = dark orange.

4Shape - 1 = short, 2 = medium short, 3 = round, 4 = medium tall, 5 = tall.

5This seed was furnished by Norman Haak

6Values in the same column followed by the same letter are not significantly different (0.05 level). If no letters in a column

  then there were no significant differences between values in that column.


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