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, 1999
Richard Greenland, Leonard Besemann, and Heidi Eslinger
Table 30. Pumpkin emergence and yields.
Table 31. Pumpkin fruit characteristics.
Pumpkins grow well in North Dakota. Early maturing pumpkins are usually best,
but later maturing ones do well in some years.
MATERIALS AND METHODS
| Soil: | Maddock sandy loam; pH=7.8; 2.3% organic matter; soil-P and soil-K were very high; soil-S was medium. |
| Previous crops: | 1998 - field corn; 1997 - cabbage, broccoli, and oriental vegetable; 1996 - carrot. |
| Seedbed preparation: | Disked on 4 November 1998. Disked on April 12 and April 30. Field cultivated on May 26 to manage stubble and to smooth seedbed. |
| Planting: | Seeds planted 1 ft apart in rows 9.5 ft apart on May 27. In late June thinned to an in-row spacing of one plant every 3 ft. |
| Fertilizer: | On April 7, broadcast 15 lbs N/acre and 75 lbs P2O5/acre as 10-50-0, 18 lbs N/acre and 20 lbs S/acre as 21-0-0-24, and 99 lbs K20/acre as 0-0-60. Sidedressed 50 lbs N/acre as urea on June 25. |
| Pest control: | Sprayed Gramoxone + a nonionic surfactant (3 pt/acre + 1 pt/100 gal on July 16 and July 21) between rows. Also controlled weeds with rototilling and hand weeding. Sprayed Thiodan (2 lbs/acre on July 29 and 1.4 lb/acre on Aug 10), Sevin (1 qt/acre on June 11 and June 23), Asana (8 oz/acre on June 7 and June 29), and Pounce (8 oz/acre on July 7) to control cucumber beetles. |
| Plots: | Plots were 17 ft long by 8 ft (one row) wide (with a 1.5 ft wide border between plots). |
| Irrigation: | Overhead sprinkler irrigation as needed. |
| Harvest: | Hand harvested September 29. |
We had severe problems with a very early attack of cucumber beetles when the pumpkins were in the cotyledon to two true leaf stage. This reduced the stand and weakened the plants of most varieties. Some varieties were more affected than others.
Most pumpkins looked good and had good yields and numbers per acre, especially considering the early problem with cucumber beetles. The best small pumpkin was RWS 6260 with good looks, large numbers per acre, and high yield for its size.
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Table 30. Pumpkin emergence and yields for the Oakes Irrigation Research Site 1999 pumpkin performance trial.
| Name | Seed source† | Plants emerged‡ | Green¶ | Marketable | |
| number | yield | ||||
| plants/plot | tons/acre | fruit/acre | tons/acre | ||
| Jack of All Trades | TW | 10.3 a§ | 5.5 | 3.6 c | 23.8 a |
| Peek-A-Boo | RG | 6.0 b | 2.2 | 4.0 c | 9.1 cd |
| Pro-Gold 100 | AC | 9.5 a | 0.1 | 7.8 b | 9.6 cd |
| Pro-Gold 200 | AC | 9.8 a | 3.2 | 2.6 c | 25.5 a |
| Pro-Gold 300 | AC | 10.3 a | 4.2 | 2.8 c | 24.4 a |
| Pro-Gold 500 | AC | 10.8 a | 4.2 | 2.6 c | 24.7 a |
| Pro-Gold 500 | TW | 10.3 a | 5.7 | 2.8 c | 27.0 a |
| Pro-Gold 510 | AC | 11.3 a | 4.9 | 2.3 c | 23.1 ab |
| RWS 5668 | RG | 9.8 a | 4.2 | 2.4 c | 26.7 a |
| RWS 6260 | RG | 10.0 a | 0.6 | 11.4 a | 14.9 bc |
| Wee-be-little | RG | 9.0 a | 0.0 | 14.2 a | 6.0 d |
| C.V. (%) | 17 | 113 | 39 | 27 | |
| Probability | 0.02 | 0.30 | 0.0001 | 0.0001 | |
†See Appendix A for seed source code.
‡Number of plants per 17 ft plot on June 9. Plants were later thinned to one plant every three feet.
¶Green - pumpkins that were immature at harvest time.
§Values in the same column followed by the same letter are not significantly different at the 0.05 level. If no letters in column, then there are no significant differences between values in that column.
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Table 31. Pumpkin fruit characteristics for the Oakes Irrigation Research Site 1999 pumpkin performance trial.
| Name | Seed source† | Fruit size | Handle (stem)‡ | Fruit color¶ | Fruit shape§ | Uni- formity |
Overall score |
| lbs/fruit | 1 to 5 | 1 to 3 | 1 to 10 | ||||
| Jack of All Trades | TW | 13.3 c†† | 2.3 c | 3.1 | 3.6 | 1.6 cd | 6.0 |
| Peek-A-Boo | RG | 4.6 d | 4.0 a | 3.0 | 3.0 | 2.0 abc | 7.0 |
| Pro-Gold 100 | AC | 2.6 de | 3.0 bc | 3.0 | 3.4 | 2.1 abc | 7.0 |
| Pro-Gold 200 | AC | 19.0 ab | 3.1 abc | 3.3 | 3.6 | 1.8 cd | 6.5 |
| Pro-Gold 300 | AC | 17.6 b | 3.0 bc | 3.0 | 3.4 | 1.8 cd | 6.4 |
| Pro-Gold 500 | AC | 19.8 ab | 2.5 bc | 3.3 | 3.5 | 1.8 cd | 6.5 |
| Pro-Gold 500 | TW | 19.2 ab | 2.8 bc | 3.3 | 3.6 | 1.4 d | 6.1 |
| Pro-Gold 510 | AC | 20.2 ab | 3.0 bc | 3.5 | 3.8 | 1.6 cd | 6.4 |
| RWS 5668 | RG | 21.8 a | 3.4 ab | 3.3 | 3.9 | 1.9 bcd | 6.6 |
| RWS 6260 | RG | 2.7 de | 4.1 a | 3.0 | 3.0 | 2.5 a | 7.8 |
| Wee-be-little | RG | 0.9 e | 2.4 c | 2.8 | 3.0 | 2.4 ab | 7.0 |
| CV (%) | 17 | 20 | 11 | 14 | 20 | 10 | |
| Probability | 0.0001 | 0.005 | 0.23 | 0.15 | 0.008 | 0.08 | |
†See Appendix A for source codes.
‡Handle (or stem) - 1 to 5; the longer and thicker the handle in relation to the size of the pumpkin, the higher the score.
¶Color - 2 = light orange, 3 = medium orange, 4 = dark orange, 5 = red orange.
§Shape - 1 = short, 2 = medium short, 3 = round, 4 = medium tall, 5 = tall.
††Values in the same column followed by the same letter are not significantly different (0.05 level). If no letters in a column, then there are no significant differences between values in that column.
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Go to Oakes Irrigation Research Site Variety Performance Trials
Go to Oakes Irrigation Research Site 1999 annual report