| 1997 Alfalfa Variety Trial (non-sprayed) - Western Branch, South Charleston ,Ohio. | |||||||
|---|---|---|---|---|---|---|---|
| Potato leafhopper | Relative Yield 1997 | ||||||
| Variety | 10-Jul | 19-Aug | 1997 Total | Injury ** | Injury ** | Height (in) | |
| Commercial Seed | Tons Dry Matter/Acre | 07/10/97 | 08/18/97 | 08/19/97 | (%mean) | ||
| Trailblazer | 0.38 | 0.91 | 1.29 | 5 | 3.9 | 10 | 104 |
| Cleansweep | 0.35 | 0.89 | 1.24 | 7 | 5.8 | 8 | 100 |
| Arrest | 0.33 | 0.89 | 1.22 | 5 | 5.2 | 9 | 99 |
| 5347LH | 0.42 | 0.77 | 1.19 | 8 | 6.7 | 8 | 96 |
| DK121HG | 0.31 | 0.86 | 1.17 | 6 | 4.4 | 10 | 94 |
| AmeriGuard 301 | 0.24 | 0.81 | 1.05 | 6 | 6.3 | 8 | 85 |
| Safeguard | 0.11 | 0.75 | 0.86 | 7 | 7.6 | 7 | 69 |
| Interceptor | 0.23 | 0.62 | 0.85 | 8 | 7.7 | 6 | 69 |
| Susceptible Check | 0.26 | 0.55 | 0.81 | 9 | 8.4 | 6 | 65 |
| Potato leafhopper | Relative Yield 1997 | ||||||
| Variety | 10-Jul | 19-Aug | 1997 Total | Injury ** | Injury ** | Height (in) | |
| Experimental Seed | Tons Dry Matter/Acre | 07/10/97 | 08/18/97 | 08/19/97 | (%mean) | ||
| 4R39* | 0.67 | 1.14 | 1.81 | 3 | 2.1 | 12 | 146 |
| 4R25* | 0.59 | 1.17 | 1.76 | 3 | 2.0 | 11 | 142 |
| 4R30* | 0.47 | 1.17 | 1.64 | 3 | 1.6 | 10 | 132 |
| 4R43* | 0.41 | 1.12 | 1.52 | 3 | 1.9 | 10 | 123 |
| 3R20* | 0.49 | 1.03 | 1.52 | 4 | 2.6 | 11 | 122 |
| 4R32* | 0.44 | 1.00 | 1.44 | 5 | 2.4 | 10 | 116 |
| CW 6043* | 0.34 | 0.95 | 1.29 | 7 | 5.9 | 8 | 104 |
| CW 6033* | 0.31 | 0.82 | 1.13 | 7 | 5.5 | 9 | 91 |
| CW 6035* | 0.31 | 0.79 | 1.11 | 8 | 7.8 | 7 | 89 |
| CW 6034* | 0.24 | 0.67 | 0.91 | 8 | 8.0 | 6 | 73 |
| CW 6042* | 0.23 | 0.66 | 0.89 | 8 | 7.7 | 6 | 72 |
| Mean | 0.36 | 0.88 | 1.24 | 6 | 5.2 | 9 | --- |
| LSD 0.05 | 0.19 | 0.14 | 0.28 | 1 | 1.4 | 2 | --- |
| CV % | 31.82 | 9.54 | 13.52 | 11 | 16.0 | 13 | --- |
| * Variety tested using experimental seed that may not give performance identical to that of commercially available seed. These varieties have not been named as of the publication date of this paper but may be named within the next year; therefore this seed is currently not available commercially. | |||||||
| ** Potato leafhopper injury rated from 1 = least to 9 = most severe injury. | |||||||
| Data subjected to Nearest Neighbor AOV, adjusted means reported. | |||||||
| Date seeded: | 04/11/97 | ||||||
| Establishment: | Seeded with a Carter cone seeder at 16 lb/a. | ||||||
| Plot size: | 3 ' x 20', 10' alleys and borders, RCBD with four reps. | ||||||
| Harvest area: | 3' x 20' | ||||||
| Soil type and status: | Celina silt loam, pH = 6.1, P = 92 lb/a, K = 474 lb/a (10/97). | ||||||
| 1997 Fertilization: | Fall application of 50 lb/a of 0-46-0 and 500 lb/a of 0-0-60. | ||||||
| 1997 Pest control: | No insecticide applied Herbicide was applied on 21 May and 21 August for weed control. | ||||||