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
RADISH HYBRID
PERFORMANCE TRIAL, 1998
Richard Greenland, Leonard Besemann, and Heidi Kerlin
Radishes grow well in North Dakota. During the heat of the summer many varieties become too hot and woody, but there are some varieties now available that grow well during the warmer parts of the summer. Control of cabbage maggot is essential for production of radishes.
Table 44. Results of the 1998 radish performance trial.
Go to Oakes Irrigation Research Site Variety Performance Trials
MATERIALS AND METHODS
| Soil: | Maddock sandy loam; pH=7.4; 2.2% organic matter; soil-P and soil-K were very high; soil-S was very low. |
| Previous crops: | 1997 - potato; 1996 - field corn; 1995 - cabbage and carrot. |
| Seedbed preparation: | Disked on 31 October, 1997. Multiweeded (field cultivated) twice on April 20 to incorporate herbicide and smooth seedbed. |
| Planting: | Direct seeded radish on April 22 with a Stanhay vegetable planter. Radish seeds were planted about 18 seeds per foot in 8-inch rows. Seeds were placed about ½ to ¾ inch deep into a flat, fine seedbed. |
| Plots: | Plots were 17 ft long by three rows (24 inches) wide. The study had 4 reps. |
| Fertilizer: | On April 13, broadcast 14 lbs N/acre and 70 lbs P2O5/acre as 10-50-0, 16 lbs N/acre and 19 lbs S/acre as 21-0-0-24, and 94 lbs K20/acre as 0-0-60. |
| Irrigation: | Overhead sprinkler irrigation as needed. |
| Pest Control: | Weeds were controlled using Treflan (1 pt/acre applied preplant incorporated on April 20). Radishes grew vigorously and were harvested before weeds could compete with them. Therefore, no additional weed control was needed. Sprayed Sevin (1.5 pt/acre on May 20) to control flea beetles. |
| Harvest: | A one-foot section of each plot was harvested every one or two days from May 22 until June 15. From these multiple harvests, we selected the harvest date for each hybrid that best represented that hybrid. |
Tinto and Galahad had the highest yields and good quality. VIL 97-53, Brio, and Rebel also looked good. Fancy Red and Red Silk were late maturing and had low yields. Valentine did not form good bulbs (many plants did not even form a bulb).
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Table 44. Results of the Oakes Irrigation Research Site 1998 radish performance trial.
| Name | Seed source† | Early plant | Days to harvest | Yield (by bulb size) | Total bulbs | ||||||
| height | vigor | stand | X-large | large | medium | small | total | ||||
| inches | --- 1 to 10 --- | -------------- 1000s of lbs/acre ------------- | 1000s/A | ||||||||
| Brio (VIL97-12) | VL | 2.1 | 8.8 | 8.5 | 39.0 | 0.8 | 4.3 | 2.4 | 0.5 | 8.1 | 537 |
| Cabernet | NV | 2.3 | 7.5 | 8.3 | 38.5 | 0.5 | 3.8 | 2.8 | 0.4 | 7.8 | 537 |
| Fancy Red | HM | 1.4 | 5.3 | 8.8 | 45.0 | 0.2 | 1.6 | 1.6 | 0.4 | 5.1 | 661 |
| Galahad | ST | 2.3 | 6.5 | 8.8 | 41.8 | 1.1 | 5.8 | 3.1 | 0.3 | 10.7 | 686 |
| Rebel | BZ | 2.2 | 7.8 | 7.8 | 38.0 | 0.1 | 3.8 | 3.0 | 0.8 | 7.9 | 563 |
| Red Silk | HM | 1.9 | 6.5 | 8.5 | 43.0 | 0.7 | 1.7 | 1.2 | 0.5 | 5.5 | 595 |
| Reggae | BZ | 2.2 | 7.0 | 6.3 | 41.5 | 1.0 | 3.7 | 1.4 | 0.3 | 6.7 | 341 |
| Scarlet Globe Special | ST | 2.3 | 7.3 | 9.5 | 44.8 | 1.7 | 2.8 | 2.6 | 0.6 | 8.7 | 799 |
| Tinto | VL | 2.4 | 8.5 | 9.8 | 41.5 | 1.8 | 7.1 | 2.9 | 0.7 | 12.6 | 806 |
| Valentine | ST | 2.7 | 8.0 | 7.8 | 54.0 | 0.0 | 0.4 | 1.0 | 1.0 | 4.1 | 414 |
| VIL 97-53 | VL | 2.4 | 8.3 | 7.5 | 37.8 | 1.1 | 4.9 | 2.1 | 0.5 | 8.8 | 505 |
| Cherry Bell | ## | 1.7 | 6.0 | 9.5 | 45.0 | 1.0 | 3.6 | 2.9 | 0.3 | 8.4 | 722 |
| LSD(0.05) | 0.4 | 1.3 | 1.1 | 3.2 | 0.9 | 2.1 | 1.3 | NS | 2.5 | 146 | |
| C.V. % | 12 | 12 | 9 | 5 | 75 | 40 | 40 | 82 | 22 | 17 | |
| Probability‡ | *** | *** | *** | *** | ** | *** | * | NS | *** | *** | |
†See appendix A for seed source codes.
‡Probability that values in the same column are the same. NS >5%. The *, **, and *** equal <5%, <1%, and <0.1%, respectively.
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Go to Oakes Irrigation Research Site Variety Performance Trials
Go to Oakes Irrigation Research Site 1998 annual report