| Total | Total | Relative Yield |
% Stand | |||||
| Variety | 11-Jun | 11-Jul | 4-Sep | 2001 | 2000 | 2001 | 4/5/01 | 9/26/01 |
| Commercial Seed: | ------- Tons Dry Matter/Acre ------- | % mean | ||||||
| Royal Red | 2.09 | 1.49 | 1.54 | 5.11 | 2.81 | 126 | 95 | 77 |
| StarFire | 1.91 | 1.32 | 1.56 | 4.67 | 3.04 | 115 | 97 | 66 |
| NARN | 2.33 | 1.28 | 0.88 | 4.44 | 2.95 | 109 | 94 | 36 |
| Solid Red | 2.05 | 1.37 | 0.85 | 4.29 | 3.36 | 106 | 98 | 59 |
| Impact | 2.26 | 1.21 | 0.79 | 4.28 | 3.03 | 105 | 97 | 55 |
| BESKYD | 2.28 | 0.41 | 0.11 | 2.86 | 1.32 | 70 | 89 | 2 |
| Vesna | 2.18 | 0.43 | 0.16 | 2.79 | 1.81 | 69 | 90 | 1 |
| Amos | 2.19 | 0.40 | 0.14 | 2.70 | 1.06 | 67 | 90 | 1 |
| Dollna | 2.17 | 0.31 | 0.08 | 2.59 | 0.98 | 64 | 82 | 7 |
| Experimental Seed: | ------- Tons Dry Matter/Acre ------- | % mean | ||||||
| CW5049* | 2.15 | 1.46 | 1.60 | 5.17 | 3.01 | 127 | 95 | 61 |
| RC9803G* | 2.28 | 1.40 | 1.45 | 5.09 | 2.93 | 125 | 100 | 75 |
| ZR9906R* | 1.93 | 1.35 | 1.20 | 4.53 | 3.10 | 111 | 97 | 55 |
| ZR9908R* | 2.13 | 1.17 | 0.96 | 4.33 | 3.07 | 107 | 95 | 52 |
| Mean | 2.15 | 1.05 | 0.87 | 4.07 | 2.50 | -- | 94 | 42 |
| LSD 0.05 | ns | 0.17 | 0.41 | 0.58 | 0.71 | -- | 6 | 24 |
| CV % | 12.90 | 11.10 | 32.80 | 10.00 | 19.80 | -- | 5 | 40 |
| no. of harvests | 1.00 | 1.00 | 1.00 | 3.00 | 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 12 lb/a. | |||||||
| Plot size: | 4' x 20' , 15'alleys and borders, RCBD with four reps. | |||||||
| Soil type and analysis: | Brookston silty clay loam, pH = 6.5, P = 138 lb/a, K = 482 lb/a, CEC = 8.4 (11/00). | |||||||
| 2001 Fertilization: | No fertilization required in reference to the soil analysis. | |||||||
| 2001 Pest control: | Herbicide was applied on 20-June for weed control. Insecticide was applied on 13-July for potato leafhopper control. | |||||||