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Ohio, Columbus, Sown 4-2-97 (Early Maturing) | |||||||||||
| Total | Total | Total | Total | Total | Total |
| |||||
| Variety | 11-May | 29-Jun | 7-Aug | 12-Sept | 2001 | 2000 | 1999 | 1998 | 1997 | 1997-01 | Maturity |
| Commercial Seed: | ------- Tons Dry Matter/Acre ------- |
5/11/01 | |||||||||
| Benchmark | 1.81 | 1.61 | 0.61 | 0.84 | 4.84 | 5.93 | 2.11 | 5.10 | 1.49 | 19.51 | 3.9 |
| Potomac | 1.74 | 1.50 | 0.64 | 0.83 | 4.63 | 5.53 | 1.82 | 5.08 | 1.60 | 18.54 | 3.8 |
| WVPB-89-40* | 1.48 | 1.59 | 0.77 | 0.86 | 4.64 | 5.83 | 1.90 | 4.75 | 1.44 | 18.40 | 2.8 |
| Mammoth* | 1.59 | 1.36 | 0.58 | 0.74 | 4.27 | 5.68 | 2.19 | 4.86 | 1.40 | 18.22 | 3.9 |
| Profile | 1.56 | 1.54 | 0.54 | 0.73 | 4.45 | 5.26 | 1.78 | 4.90 | 1.52 | 18.13 | 3.7 |
| AV-61* | 1.43 | 1.57 | 0.72 | 0.78 | 4.57 | 5.45 | 1.75 | 4.72 | 1.35 | 17.77 | 3.1 |
| Udder* | 1.36 | 1.50 | 0.65 | 0.77 | 4.33 | 5.36 | 1.70 | 4.65 | 1.55 | 17.76 | 3.0 |
| GA - 061* | 1.81 | 1.24 | 0.44 | 0.70 | 4.12 | 4.80 | 2.04 | 4.42 | 1.39 | 16.86 | 4.2 |
| Mean | 1.60 | 1.49 | 0.62 | 0.78 | 4.48 | 5.48 | 1.91 | 4.81 | 1.47 | 18.15 | 3.6 |
| LSD 0.05 | 0.21 | ns | 0.13 | 0.11 | ns | 0.58 | 0.26 | ns | ns | 1.61 | 0.3 |
| CV % | 9.00 | 15.00 | 13.80 | 9.60 | 7.90 | 7.10 | 9.40 | 7.50 | 10.90 | 6.00 | 5.6 |
| * Variety tested using experimental seed that may not give performance identical to that of commercially available seed. | |||||||||||
| aMaturity -- 1 = vegetative, 2 = early boot, 3 = initial emergence of inflorescense (head emergence), 4 = complete emergence of inflorescense from boot, 5 = elongated peduncle (stem holding inflorescense). | |||||||||||
| Establishment: | Drill seeded with presswheels at 10 lb/a. | ||||||||||
| Soil type and analysis: | Crosby clay loam, pH = 6.45, P = 156, K = 406, CEC = 8.3, O.M. = 2.7 (10/00). | ||||||||||
| 2001 Fertilization: | Ammonium nitrate (34-0-0) was applied on 27-March at 205 lb/a, 11- May for early maturing and 21-May for late maturing at 150 lb/a, 29 June at 150 lb/a and 8-August at 150 lb/a. | ||||||||||