| Total | Relative Yield | ||||
| Variety | 28-Jun | 2-Aug | 7-Sept | 2001 | 2001 |
| Commercial Seed: | ------- Tons Dry Matter/Acre ------- | % mean | |||
| Macon | 1.71 | 1.81 | 1.21 | 4.73 | 108 |
| Starbuck | 1.77 | 1.74 | 1.15 | 4.66 | 107 |
| Phirst | 1.70 | 1.68 | 1.20 | 4.58 | 105 |
| HybriForce-400 | 1.65 | 1.56 | 1.33 | 4.53 | 104 |
| 54V54 | 1.65 | 1.65 | 1.21 | 4.52 | 103 |
| WL 342 | 1.57 | 1.57 | 1.28 | 4.41 | 101 |
| Vernal | 1.74 | 1.66 | 1.00 | 4.40 | 101 |
| Radiant | 1.52 | 1.60 | 1.16 | 4.29 | 98 |
| 6420 | 1.61 | 1.52 | 1.10 | 4.22 | 97 |
| 54H91 | 1.34 | 1.51 | 1.28 | 4.14 | 95 |
| DKA 42-15 | 1.39 | 1.52 | 1.20 | 4.11 | 94 |
| FK 421 | 1.50 | 1.41 | 1.13 | 4.05 | 93 |
| Ameristand 403T | 1.40 | 1.43 | 1.05 | 3.88 | 89 |
| Mean | 1.57 | 1.61 | 1.18 | 4.37 | -- |
| LSD 0.05 | ns | ns | ns | ns | -- |
| CV % | 13.30 | 11.00 | 11.30 | 8.20 | -- |
| no. of harvests | 1.00 | 1.00 | 1.00 | 3.00 | -- |
| * Variety tested using experimental seed that may not give performance identical to that of commercially available seed. | |||||
| Data subjected to Nearest Neighbor AOV, adjusted means reported. | |||||
| Establishment: | Seeded with a Hege 3-point hitch drill with presswheels at 16 lb/a. Eptam applied PPI at 2 qt/a. | ||||
| Plot size: | 4' x 20', 15' alleys and borders, RCBD with four reps. | ||||
| Soil type and analysis: | Crosby silt loam, pH=6.3, P=110 lbs/s, K=282 lbs/a, CEC=8.4, O.M.=3.2, (11/00). | ||||
| 2001 Fertilization: | 300 lb/a of 0-0-60 was fall applied. One ton of lime applied prior to seeding. | ||||
| 2001 Pest control: | Insecticide was applied on 7-June, 12-July and 14-August for potato leafhopper control. Herbicide was applied 11-May and 14-August for weed control | ||||