Table 6.
Frequencies of hard, medium and soft wheats bred in different periods in Beijing, Hebei, Shandong and Henan, and their prevalent genotypes in hard wheat
| Location | Perioda (year 2000) | Number | SKCS index | Freq. (%) | Aver. Hardness Freq. (%) | Genotype freq. in hard wheat | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | Range | Hard | Medium | Soft | Hard | Medium | Soft | Pina-D1a/ Pinb-D1b | Pina-D1a/ Pinb-D1p | Pina-D1b/ Pinb-D1a | |||
| Beijing | after | 83 | 69.2 | 10.0–85.5 | 90.4 | 4.8 | 4.8 | 72.5 | 57.1 | 20.7 | 37.3 | 44.0 | 10.7 |
| before | 106 | 58.8 | 12.1–92.5 | 65.1 | 16.0 | 18.9 | 69.7 | 52.6 | 26.7 | 59.4 | 20.3 | 14.5 | |
| Hebei | after | 281 | 68.3 | 13.0–94.2 | 86.5 | 8.2 | 5.3 | 72.0 | 56.1 | 26.6 | 64.2 | 16.9 | 9.9 |
| before | 128 | 48.4 | 11.0–90.4 | 42.2 | 18.8 | 39.1 | 68.4 | 53.0 | 24.5 | 61.1 | 29.6 | 1.9 | |
| Shandong | after | 108 | 63.7 | 1.4–95.6 | 73.2 | 6.5 | 20.4 | 76.5 | 55.0 | 20.5 | 55.7 | 13.9 | 20.3 |
| before | 156 | 50.4 | 11.1–92.7 | 48.7 | 10.3 | 41.0 | 71.6 | 52.9 | 24.7 | 75.0 | 17.1 | 1.3 | |
| Henan | after | 107 | 61.1 | 6.7–95.0 | 67.3 | 13.1 | 19.6 | 72.8 | 53.2 | 26.3 | 75.0 | 8.3 | 12.5 |
| before | 140 | 42.2 | 1.5–83.4 | 30.7 | 13.6 | 55.7 | 71.1 | 52.5 | 23.7 | 67.4 | 11.6 | 16.3 | |
aafter year 2000 means accessions or varieties bred and released in 2000 or later, and before year 2000 means released in 1999 or before