Table 4.
Percentage frequency of favorable alleles for DH, days to heading; PH, plant height; TGW, thousand grain weight; and GY, grain yield in cultivars released before and after 2000.
| Traita | Cultivar group** | Mean | Frequency (%) of favorable alleles* | |||||
|---|---|---|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 | 4 | ≥5 | |||
| DH | Pre-2000 | 108.73 | 1.5 | 8.8 | 14.7 | 33.8 | 26.5 | 7.4 |
| Post-2000 | 106.9 | 0 | 4.9 | 22 | 39 | 19.5 | 12.2 | |
| PH | Pre-2000 | 94.05 | 2.9 | 23.5 | 26.5 | 25 | 7.4 | 7.4 |
| Post-2000 | 91.85 | 0 | 22 | 39 | 14.6 | 4.9 | 9.8 | |
| TGW | Pre-2000 | 32.25 | 13.2 | 44.1 | 25 | 16.2 | 1.5 | 0 |
| Post-2000 | 36.44 | 17.1 | 43.9 | 22 | 12.2 | 4.9 | 0 | |
| GY | Pre-2000 | 422.4 | 23.5 | 57.4 | 13.2 | 5.9 | 0 | 0 |
| Post-2000 | 521.5 | 34.1 | 43.9 | 9.8 | 7.3 | 4.9 | 0 | |
*
Frequency refers to number of cultivars with 0, 1, 2 3, 4, and 5 favorable alleles.
**
Cultivar groups refers to 68 cultivars released before year 2000 (pre-2000) and 41 cultivars released after 2000 (post-2000).
a
See the footnote of Table 1 for abbreviations.