Table 1.
The total additive effect estimated on the basis of model (1) and model (2) for the 150 doubled haploid lines of barley obtained from the Steptoe × Morex cross (all epistasis effects are statistically significant at the 0.05 level).
| Environment | Model | Trait
|
|||||||
|---|---|---|---|---|---|---|---|---|---|
| AA | DP | GY | GP | HD | H | L | ME | ||
| ID91# | (1) | 13.48 | 29.04 | 2.33 | 0.030 | 6.00 | 12.83 | - | 0.018 |
| (2) | 11.76 | 29.68 | 3.40 | 0.030 | 6.09 | 12.77 | - | 0.019 | |
| ID92 | (1) | 7.80 | 69.54 | 1.50 | 0.015 | 6.96 | 9.85 | - | 0.013 |
| (2) | 7.62 | 61.93 | 2.66 | 0.034 | 7.03 | 9.71 | - | 0.013 | |
| MA92 | (1) | - | - | 0.70 | - | 6.18 | 25.19 | 0.328 | - |
| (2) | - | - | 0.72 | - | 6.26 | 24.94 | 0.380 | - | |
| MN92 | (1) | 15.33 | 35.01 | 1.36 | 0.026 | 8.00 | 17.67 | - | 0.047 |
| (2) | 7.67 | 36.52 | 1.39 | 0.026 | 8.00 | 17.67 | - | 0.046 | |
| MTd91 | (1) | - | - | 1.17 | - | 5.56 | 9.88 | - | - |
| (2) | - | - | 1.13 | - | 5.71 | 9.88 | - | - | |
| MTd92 | (1) | 5.45 | 50.21 | 1.06 | 0.028 | 5.63 | 13.90 | 0.457 | 0.034 |
| (2) | 5.47 | 54.64 | 1.00 | 0.028 | 5.63 | 13.73 | 0.468 | 0.035 | |
| MTi91 | (1) | 4.95 | 51.06 | 1.67 | 0.042 | 5.94 | 18.76 | - | 0.023 |
| (2) | 5.04 | 48.80 | 1.57 | 0.039 | 5.45 | 18.59 | - | 0.023 | |
| MTi92 | (1) | 15.36 | 30.01 | 0.65 | 0.021 | 4.63 | 18.40 | 0.631 | 0.025 |
| (2) | 17.64 | 43.52 | 0.65 | 0.051 | 4.66 | 18.19 | 0.644 | 0.025 | |
| NY92 | (1) | - | - | 1.24 | - | 7.59 | 18.68 | 0.331 | - |
| (2) | - | - | 1.24 | - | 7.57 | 17.21 | 0.328 | - | |
| ON92 | (1) | - | - | 0.94 | - | 4.24 | 6.18 | 0.349 | - |
| (2) | - | - | 1.28 | - | 6.22 | 6.18 | 0.349 | - | |
| OR91 | (1) | 8.44 | 42.02 | 1.37 | 0.013 | 4.12 | 12.71 | - | 0.028 |
| (2) | 8.61 | 40.55 | 1.37 | 0.013 | 8.04 | 12.71 | - | 0.028 | |
| SKg92 | (1) | - | - | 1.30 | - | 6.65 | 16.97 | - | - |
| (2) | - | - | 1.77 | - | 6.65 | 17.30 | - | - | |
| SKg93 | (1) | - | - | 0.60 | - | 6.18 | 19.40 | - | - |
| (2) | - | - | 1.30 | - | 6.16 | 19.40 | - | - | |
| SKo92 | (1) | - | - | 0.95 | - | 4.99 | 13.16 | 0.383 | - |
| (2) | - | - | 0.95 | - | 4.75 | 13.16 | 0.387 | - | |
| WA91 | (1) | 7.51 | 21.84 | 1.43 | 0.022 | 5.53 | 15.92 | - | 0.027 |
| (2) | 7.51 | 21.84 | 1.44 | 0.023 | 5.53 | 16.00 | - | 0.027 | |
| WA92 | (1) | 5.04 | 32.56 | 0.65 | 0.026 | 5.07 | 20.35 | - | 0.027 |
| (2) | 5.13 | 49.03 | 1.22 | 0.026 | 5.05 | 21.20 | - | 0.028 | |
Abbreviations: ID91 - Aberdeen, Idaho, 1991; ID92 - Tetonia, Idaho, 1992; MA92 - Brandon, Manitoba, 1992; MN92 - Crookston, Minnesota, 1992; MTd91 - Bozeman, Montana, dry, 1991; MTd92 - Bonzeman, Montana, dry, 1992; MTi91 - Bozeman, Montana, irrigated, 1991; MTi92 - Bozeman, Montana, irrigated, 1992; NY92 - Ithaca, New York, 1992; ON92 - Guelph, Ontario, 1992; OR91 - Klamath Falls, Oregon, 1991; Kg92 - Goodlae, Saskatchewan, 1992; SKg93 - Kcfr, Saskatchewan, 1992; SKo92 - Outlook, Saskatchewan, 1992; WA91 - Pullman, Washington, 1991; WA92 - Pullman, Washington, 1992.