| Total | Relative Yield | |||
| Variety | 6-Jul | 29-Aug | 2001 | 2001 |
| Commercial Seed: | ------- Tons Dry Matter/Acre ------- | % mean | ||
| 6420 | 1.14 | 1.36 | 2.50 | 106 |
| A 30-06 | 1.16 | 1.31 | 2.48 | 105 |
| Ameristand 403T | 1.20 | 1.27 | 2.48 | 105 |
| WL 342 | 1.17 | 1.23 | 2.39 | 101 |
| Starbuck | 1.15 | 1.23 | 2.39 | 101 |
| HybriForce-400 | 1.12 | 1.24 | 2.36 | 100 |
| Phirst | 1.09 | 1.26 | 2.35 | 99 |
| 54V54 | 1.18 | 1.15 | 2.33 | 99 |
| 54H91 | 1.13 | 1.20 | 2.33 | 98 |
| Vernal | 1.12 | 1.20 | 2.32 | 98 |
| DKA 42-15 | 1.07 | 1.19 | 2.26 | 95 |
| FK 421 | 1.00 | 1.20 | 2.20 | 93 |
| Mean | 1.13 | 1.24 | 2.36 | -- |
| LSD 0.05 | ns | ns | 0.12 | -- |
| CV % | 8.00 | 6.80 | 3.60 | -- |
| no. of harvests | 1.00 | 1.00 | 2.00 | -- |
| * 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 2qt/a. 3 ton/a of lime applied fall 2000 prior to seeding. | |||
| Plot size: | 5' x 25', 25' alleys and borders. RCBD with four reps. | |||
| Soil type and analysis: | Hoytville silty clay, pH=6.3, P=79 lb/a, K=330 lb/a, CEC= 20, O.M.=3.3 (8/01). | |||
| 2001 Fertilization: | 100 lb/a of 0-46-0 and 150 lb/a of 0-0-60 applied prior to seeding. 300 lb/a of 0-0-60 fall applied. | |||
| 2001 Pest control: | Insecticide applied 15-June and 2-August for potato leafhopper control. | |||