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
TOMATO HYBRID PERFORMANCE TRIAL, 1999
Richard Greenland, Leonard Besemann and Heidi Eslinger
Table 33. Yield, size, and quantity of tomatoes.
Table 34. Fruit characteristics of tomatoes.
Table 35. Cumulative yields of tomatoes, and green tomato yields.
Tomatoes grow well in southern North Dakota. Yield and quality may be reduced in cool or short growing seasons.
MATERIALS AND METHODS
| Soil: | Maddock sandy loam, Hecla sandy loam; pH=7.7; 2.6% organic matter; soil-P and soil-K were high; soil-S was very low. |
| Previous crop: | 1998 - carrot; 1997 - winter squash; 1996 - broccoli. |
| Seedbed preparation: | Disked on 5 November 1998. Deep chiseled on May 4. Field cultivated three times on June 1, once deep and twice shallow, to incorporate herbicides. |
| Planting: | Tomatoes were seeded in the greenhouse on April 9. Plants were hand transplanted to the field on June 1. Rows were spaced 4 feet apart. In-row spacing was 1.5 ft. As it was planted, each plant received one pint of fertilizer solution (1 gal 10-34-0 in 100 gal of water). Tomatoes were irrigated immediately after planting. |
| Plots: | Plots were 17 ft long by 4 ft (one row) wide. Tomatoes were staked on half of each plot. |
| 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. Fertigated 50 and 40 lbs of N/acre as 28-0-0 on July 7 and July 21, respectively. |
| Irrigation: | Surface drip irrigation as needed. |
| Pest control: | Weeds were controlled by Tillam (3 qt/acre on June 1), Treflan (1 pt/acre on June 1) both preplant incorporated, Shadeout (2 oz/acre on June 14), and by hand weeding. We applied Kocide (2.5 lbs/acre on July 14) and Quadris (6 oz/acre on July 26 and Aug 25) for blight control. We applied Asana (8 oz/acre on June 29 and July 14) for insect control. |
| Harvest: | Harvested 5 times from August 18 to September 27. Harvested all green tomatoes Sept 28 to Sept 30 - just before frost. |
Red Rider was the earliest and had the highest yields. Tuscany, a paste tomato, was also early and had high yields. Sun Leaper was a later maturing tomato with high yields.
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Table 33. Yield, size, and quantity of tomatoes in the Oakes Irrigation Research Site 1999 tomato hybrid performance trial.
| Hybrid | Seed source† | Yield | Fruit size | Cracked fruit | Total fruit | |||
| US #1 | US #2 | US #3 | total | |||||
| 1000s of lbs/acre | oz/fruit | % | 1000s/A | |||||
| Staked | ||||||||
| Carolina Gold | RG | 48.2 | 9.6 | 2.1 | 66.1 | 7.4 | 4.6 | 145 |
| Leila | RG | 21.2 | 5.8 | 3.2 | 33.3 | 7.3 | 11.8 | 74 |
| Mountain Spring | RG | 32.0 | 7.0 | 1.5 | 44.6 | 7.7 | 5.2 | 93 |
| Red Rider | ST | 55.6 | 15.8 | 5.0 | 91.7 | 6.8 | 5.4 | 215 |
| Sun Leaper | RG | 60.8 | 15.9 | 2.9 | 85.9 | 6.3 | 2.9 | 218 |
| Supra | RG | 42.9 | 3.9 | 0.4 | 48.7 | 2.7 | 1.9 | 294 |
| Tuscany | JS | 68.1 | 8.5 | 0.5 | 78.8 | 3.0 | 0.3 | 424 |
| Joker | TW | 14.1 | 3.0 | 1.3 | 20.1 | 8.0 | 11.1 | 40 |
| LSD (0.05) | 6.5 | 3.3 | 1.3 | 7.7 | 0.8 | 3.4 | 27 | |
| C. V. (%) | 10 | 26 | 42 | 9 | 9 | 43 | 10 | |
| Probability | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | |
| Unstaked | ||||||||
| Carolina Gold | RG | 56.2 | 9.4 | 4.5 | 78.4 | 8.1 | 8.8 | 156 |
| Leila | RG | 24.6 | 5.3 | 2.1 | 35.9 | 8.1 | 7.5 | 73 |
| Mountain Spring | RG | 41.8 | 8.6 | 2.7 | 57.6 | 7.8 | 7.6 | 118 |
| Red Rider | ST | 54.0 | 16.3 | 7.9 | 97.5 | 7.4 | 6.2 | 212 |
| Sun Leaper | RG | 48.8 | 13.1 | 3.0 | 75.2 | 6.4 | 4.0 | 189 |
| Supra | RG | 57.4 | 4.3 | 1.6 | 65.3 | 2.7 | 0.9 | 393 |
| Tuscany | JS | 76.3 | 8.9 | 1.1 | 88.5 | 3.1 | 0.1 | 456 |
| Joker | TW | 13.1 | 2.1 | 0.6 | 21.7 | 8.7 | 16.7 | 40 |
| LSD (0.05) | 12.2 | 3.9 | 1.6 | 13.4 | 1.1 | 4.8 | 40 | |
| C.V. (%) | 18 | 31 | 37 | 14 | 12 | 51 | 13 | |
| Probability | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | |
†See Appendix A for seed source codes.
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Table 34. Fruit characteristics of tomatoes in the Oakes Irrigation Research Site 1999 tomato hybrid performance trial.
| Hybrid | Seed source† | Skin color‡ | Fruit length | Fruit width | Fruit shape¶ | Taste | Uni- formity | Overall score |
| 1 to 9 | cm | 2 to 7 | 1 to 4 | 1 to 3 | 1 to 10 | |||
| Staked | ||||||||
| Carolina Gold | RG | 4.8 | 6.8 | 8.0 | 2.6 | 2.8 | 1.6 | 5.2 |
| Leila | RG | 7.7 | 6.7 | 7.9 | 2.8 | 2.6 | 1.8 | 5.3 |
| Mountain Spring | RG | 7.7 | 6.9 | 8.4 | 2.6 | 2.9 | 1.6 | 5.3 |
| Red Rider | ST | 7.9 | 6.4 | 7.7 | 2.3 | 3.2 | 1.6 | 5.4 |
| Sun Leaper | RG | 7.8 | 6.7 | 7.9 | 2.8 | 3.2 | 1.7 | 5.5 |
| Supra | RG | 7.8 | 7.3 | 4.4 | 7.0 | 3.0 | 1.9 | 5.6 |
| Tuscany | JS | 7.9 | 6.5 | 5.8 | 6.0 | 2.9 | 1.7 | 5.6 |
| Joker | TW | 7.8 | 6.5 | 8.0 | 2.2 | 3.3 | 2.0 | 5.9 |
| LSD (0.05) | 0.1 | 0.4 | 0.4 | 0.5 | 0.3 | 0.2 | 0.4 | |
| C. V. (%) | 1 | 4 | 4 | 10 | 8 | 7 | 5 | |
| Probability | 0.0001 | 0.011 | 0.0001 | 0.0001 | 0.004 | 0.0008 | 0.02 | |
| Unstaked | ||||||||
| Carolina Gold | RG | 5.0 | 7.1 | 8.4 | 2.7 | 3.2 | 1.6 | 5.2 |
| Leila | RG | 7.7 | 6.5 | 7.9 | 2.3 | 2.8 | 1.9 | 5.5 |
| Mountain Spring | RG | 7.8 | 6.5 | 8.4 | 1.9 | 3.1 | 1.6 | 5.2 |
| Red Rider | ST | 7.9 | 6.7 | 8.0 | 2.7 | 3.7 | 1.7 | 5.5 |
| Sun Leaper | RG | 7.8 | 6.8 | 7.9 | 2.8 | 3.1 | 1.7 | 5.4 |
| Supra | RG | 7.7 | 7.3 | 4.3 | 7.0 | 2.9 | 1.9 | 5.7 |
| Tuscany | JS | 7.9 | 6.6 | 5.6 | 6.0 | 3.1 | 1.8 | 5.6 |
| Joker | TW | 7.8 | 6.8 | 8.6 | 2.2 | 2.8 | 1.7 | 5.3 |
| LSD (0.05) | 0.2 | 0.5 | 0.5 | 0.6 | 0.3 | NS | NS | |
| C.V. (%) | 2 | 5 | 5 | 12 | 7 | 7 | 6 | |
| Probability | 0.0001 | 0.023 | 0.0001 | 0.0001 | 0.0002 | 0.07 | 0.29 | |
†See Appendix A for seed source codes.
‡Mature color - 1 to 3 is light to dark yellow; 4 to 6 is light to dark orange; 7 to 9 is light to dark red.
¶Tomato shape - 2 is deep oblate; 3 is globe; 6 is square; 7 is pear.
For taste, uniformity, and overall score, higher values are better.
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Table 35. Cumulative yields of tomatoes, and green tomato yields in the Oakes Irrigation Research Site 1999 tomato hybrid performance trial.
| Hybrid | Seed source† | Cumulative yield of US #1 plus US #2 tomatoes as of: | ||||||
| Aug 18 | Aug 25 | Sep 1 | Sep 10 | Sep 20 | Sep 27 | Green‡ | ||
| 1000s of lbs/acre | ||||||||
| Staked | ||||||||
| Carolina Gold | RG | 0.8 | 2.5 | 4.3 | 19.1 | 42.5 | 57.8 | 61.1 b |
| Leila | RG | 0.0 | 1.2 | 2.3 | 10.2 | 19.2 | 27.1 | 69.6 b |
| Mountain Spring | RG | 0.1 | 1.5 | 2.1 | 11.1 | 27.3 | 39.0 | 47.0 c |
| Red Rider | ST | 6.7 | 12.7 | 17.9 | 46.2 | 62.7 | 71.4 | 26.6 d |
| Sun Leaper | RG | 2.3 | 5.6 | 8.0 | 32.0 | 59.2 | 76.7 | 39.9 c |
| Supra | RG | 2.7 | 4.3 | 6.2 | 21.5 | 37.8 | 46.8 | 48.7 c |
| Tuscany | JS | 7.3 | 11.4 | 17.5 | 52.5 | 66.9 | 76.7 | 11.5 e |
| Joker | TW | 0.0 | 0.0 | 1.1 | 8.2 | 14.3 | 17.0 | 86.9 a |
| LSD (0.05) | 2.2 | 2.8 | 5.1 | 7.2 | 7.6 | 7.3 | ¶ | |
| C. V. (%) | 60 | 39 | 47 | 20 | 13 | 10 | 14 | |
| Probability | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | |
| Unstaked | ||||||||
| Carolina Gold | RG | 1.2 | 2.4 | 4.4 | 24.7 | 51.8 | 65.6 | 43.6 |
| Leila | RG | 0.0 | 1.8 | 3.3 | 9.8 | 21.1 | 29.9 | 54.5 |
| Mountain Spring | RG | 0.0 | 1.0 | 2.2 | 18.2 | 39.0 | 50.4 | 38.3 |
| Red Rider | ST | 6.9 | 11.5 | 17.6 | 51.6 | 63.5 | 70.2 | 11.8 |
| Sun Leaper | RG | 3.0 | 4.2 | 6.0 | 31.1 | 50.0 | 62.0 | 27.1 |
| Supra | RG | 3.1 | 3.9 | 8.6 | 32.2 | 44.8 | 61.7 | 41.2 |
| Tuscany | JS | 5.4 | 10.9 | 19.7 | 61.8 | 75.8 | 85.2 | 13.1 |
| Joker | TW | 0.0 | 0.2 | 1.3 | 5.8 | 10.7 | 15.2 | 81.9 |
| LSD (0.05) | 2.5 | 3.5 | 10.0 | 9.5 | 12.2 | 13.5 | 12.0 | |
| C.V. (%) | 71 | 53 | 87 | 22 | 19 | 17 | 21 | |
| Probability | 0.0001 | 0.0001 | 0.0045 | 0.0001 | 0.0001 | 0.0001 | 0.0001 | |
†See Appendix A for seed source codes.
‡Yield of green tomatoes harvested Sept 28 to Sept. 30. These did not mature before the first frost and are not included in cumulative yield. Also, they are not included in total yield in Table 33.
¶Values in this column followed by the same letter are not significantly different at the 0.05 level.
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Go to Oakes Irrigation Research Site Variety Performance Trials
Go to Oakes Irrigation Research Site 1999 annual report