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
WINTER SQUASH VARIETY PERFORMANCE TRIAL, 2001
Richard Greenland, Leonard Besemann and Delores Anderson
Table 34. Fruit characteristics of squash
Table 35. Numbers and yields of squash
Winter squash grow well in North Dakota. A small, but steady, market is available within the state. There are also markets outside the state, especially if squash is stored, then shipped during the winter.
MATERIALS AND METHODS
Soil: |
Hecla sandy loam; pH=6.6; 2.4% organic matter; soil-P and soil-K were very high; soil-S was very low. |
Previous crop: |
2000 - field corn; 1999 - edible bean; 1998 - pepper. |
Seedbed preparation: |
Disked on April 20. Multiweeded (field cultivated) twice on May 17 to incorporate fertilizer and smooth seedbed. |
Planting: |
Seeds planted 1 ft apart in rows 7.5 ft apart on May 18. On June 19 thinned to an in-row spacing of one plant every 3 ft. |
Plots: |
Plots were 20 ft long by 6 ft (one row) wide. |
Fertilizer: |
On April 19, broadcast 10 lbs N/acre and 50 lbs P2O5/acre as 10-50-0 and 18 lbs N/acre and 20 lbs S/acre as 21-0-0-24. Sprayed 50 lbs N/acre as 28-0-0 on May 17. Side dressed 47 lbs N/acre as urea on June 20. |
Irrigation: |
Underground drip irrigation as needed. |
Pest control: |
Weeds were controlled by rototilling and by hand weeding. Sprayed Asana (8 oz/acre on July 19, Aug 8 and Aug 15) and Sevin (1 qt/acre on July 30) to control cucumber beetles. Applied Ridomil MZ72 (2.5 lb/acre on July 24 and Aug 15), Topsin (.41 lb/acre on Aug 1 and Aug 27) and Maneb (2 lb/acre on Aug 8) to reps 1 and 2 to control disease. |
Harvest: |
Hand harvested Oct 1 and Oct 2. |
Most of the squash had trouble maturing. Carnival, JWS 6475A, and sweet mama had the highest yeilds of the squash that matured. Carnival, an ornamental type squash, had the highest yield. Sweet mama was the best Kabocha type squash. There were no statistical differences between the squash that were treated with fungicides and those that did not receive treatments.
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Table 34. Fruit characteristics of squash in the Oakes Irrigation Research Site 2001 winter squash performance trial. Click on name of squash to see picture.
Variety |
Seed source1 |
Squash type |
Outside color |
Inside color |
Early2 stand |
Fruit size |
|||||
|
|
|
|
|
plants/17 ft |
lbs/fruit |
|||||
ST |
buttercup |
green |
orange |
6.2 b |
3.5 d |
||||||
HS |
buttercup |
green |
orange |
10.2 a |
3.4 d |
||||||
HS |
acorn |
white/green/orange |
light orange |
11.0 a |
1.7 e |
||||||
RG |
acorn |
white/green |
light orange |
12.0 a |
1.8 e |
||||||
JS |
kabocha |
red orange |
orange |
11.3 a |
4.8 b |
||||||
RG |
butternut |
tan |
light orange |
10.0 a |
7.3 a |
||||||
AT |
kabocha |
green |
orange |
12.5 a |
4.5 bc |
||||||
AT |
kabocha |
dark green |
orange |
12.3 a |
4.0 cd |
||||||
ST |
acorn |
dark green |
light orange |
12.0 a |
1.9 e |
||||||
C.V. (%) |
|
|
|
18 |
13 |
||||||
Probability |
|
|
|
0.02 |
<.0001 |
||||||
1See appendix A for seed source codes.
2Stand counts taken on June 18. Maximum possible was 17. Squash later thinned to six plants/plot (3-ft in-row spacing).
3Values in the same column followed by the same letter are not significantly different at the 0.05 level.
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Table 35. Numbers and yields of squash in the Oakes Irrigation Research Site 2001 winter squash performance trial. Click on name of squash to see picture.
Variety |
Number of fruit |
Yield |
|||||||||
US # 1 |
US #2 |
green1 |
total |
US # 1 |
US #2 |
green1 |
total |
||||
|
-------------- 1000s/acre --------------- |
---------------- tons/acre ---------------- |
|||||||||
4.4 c2 |
1.4 cd |
5.7 bcd |
11.8 bcd |
7.9 |
2.3 cd |
7.3 bcd |
17.8 ab |
||||
4.2 cd |
2.7 cd |
6.6 bc |
13.8 b |
7.0 |
4.7 abc |
8.5 bc |
20.5 a |
||||
11.9 a |
6.4 a |
4.9 cde |
24.0 a |
10.2 |
5.5 a |
3.6 e |
19.9 a |
||||
9.9 ab |
3.4 bc |
11.0 a |
24.6 a |
9.0 |
2.8 bcd |
9.3 ab |
21.4 a |
||||
4.3 c |
2.5 cd |
3.8 de |
11.5 bc |
10.2 |
4.4 abc |
4.2 de |
20.2 a |
||||
1.8 d |
0.2 d |
5.9 bcd |
8.3 cd |
6.6 |
0.7 d |
12.1 a |
19.8 a |
||||
4.3 cd |
2.5 cd |
3.6 de |
10.6 bcd |
9.5 |
5.5 a |
6.0 cde |
21.3 a |
||||
2.9 cd |
1.9 cd |
3.0 e |
8.2 d |
5.6 |
4.3 abc |
4.4 de |
15.0 b |
||||
8.3 b |
5.7 ab |
7.8 b |
22.0 a |
8.0 |
4.8 ab |
6.6 bcd |
19.6 a |
||||
C.V. (%) |
27 |
52 |
28 |
15 |
25 |
39 |
28 |
12 |
|||
Probability |
<.0001 |
0.0005 |
<.0001 |
<.0001 |
0.06 |
0.003 |
<.0001 |
0.03 |
|||
1These squash were immature at time of harvest.
2Values in the same column followed by the same letter are not significantly different at the 0.05 level.
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