| Potato Leafhopper Resistant Trial | ||||||||||
| Total |
Heighta 2001 | Injuryb 2001 |
Nymphc 2001 | |||||||
| Variety | 28-Jun | 2-Aug | 7-Sep | 2001 | 27-Jun | 7-Sep | 27-Jun |
31-Jul | 27-Jun | 31-Jul |
| Commercial Seed: | ------- Tons Dry Matter/Acre ------- | |||||||||
| 54H91 | 1.11 | 1.41 | 1.18 | 3.74 | 15.8 | 18.6 | 2.0 | 1.0 | 18.0 | 3.8 |
| Evergreen | 1.11 | 1.42 | 0.92 | 3.47 | 14.1 | 15.7 | 2.8 | 1.8 | 43.9 | 6.7 |
| DKA 37-20 | 0.74 | 1.13 | 0.92 | 2.72 | 11.6 | 14.8 | 3.3 | 1.8 | 53.7 | 13.3 |
| 54V54 | 0.93 | 0.99 | 0.71 | 2.60 | 9.7 | 9.7 | 4.8 | 4.3 | 125.5 | 44.8 |
| Vernal | 0.85 | 1.01 | 0.61 | 2.46 | 9.1 | 9.0 | 4.5 | 4.3 | 112.4 | 31.7 |
| 5454 | 0.78 | 0.97 | 0.64 | 2.44 | 10.9 | 12.0 | 5.0 | 4.3 | 130.0 | 38.8 |
| Experimental Seed: | ------- Tons Dry Matter/Acre ------- | |||||||||
| FG 40H111* | 1.12 | 1.31 | 1.08 | 3.51 | 15.4 | 14.9 | 2.0 | 1.0 | 19.6 | 1.9 |
| FG 4S97* | 0.94 | 1.40 | 1.08 | 3.46 | 13.6 | 16.8 | 2.8 | 1.0 | 35.0 | 4.9 |
| FG 40H124* | 1.13 | 1.27 | 1.01 | 3.46 | 15.5 | 14.7 | 2.0 | 1.0 | 19.0 | 4.4 |
| FG 40H106* | 1.27 | 1.19 | 1.01 | 3.42 | 15.1 | 13.9 | 2.0 | 1.0 | 10.9 | 1.8 |
| FG 4S98* | 1.12 | 1.33 | 0.98 | 3.41 | 13.9 | 16.1 | 2.3 | 1.0 | 19.0 | 10.8 |
| Mean | 1.01 | 1.22 | 0.92 | 3.15 | 13.2 | 14.2 | 3.0 | 2.0 | 53.3 | 14.8 |
| LSD 0.05 | 0.29 | 0.32 | 0.14 | 0.65 | 1.5 | 1.9 | 0.5 | 0.7 | 22.8 | 16.7 |
| CV % | 19.70 | 17.90 | 10.20 | 14.30 | 8.1 | 9.2 | 11.2 | 23.8 | 29.5 | 78.1 |
| 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. | ||||||||||
| a Height recorded in
inches
b Potato leafhopper injury rated from 1 = least to 5 = most severe reported c Nymph = Number of nymphs collected with two pan sweeps | ||||||||||
| Establishment: | Seeded with a Hege 3-point hitch drill with presswheels at 16 lb/a. Eptam was 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. | |||||||||
| 2001 Pest control: | Herbicide was applied 11-May and 14-August for weed control | |||||||||