Table 1.
Fertility transition temperature and pollen fertility of 208S and control PTSMS line Peiai64S in artificial climatic chamber (Hangzhou, China, 2010)
| Line | Photoperiod (h) | Temperature (°C) | Pollen fertility (%) | Self-seed setting rate (%) |
|---|---|---|---|---|
| 208S | 11.5 | 28.0 | 0.0 | 0.0 |
| 24.0 | NA | 0.0* | ||
| 12.5 | 28.0 | 0.0* | 0.0 | |
| 24.0 | 6.1* | 7.3* | ||
| 13.5 | 28.0 | NA | 0.0 | |
| 24.0 | 0.0 | 0.0 | ||
| 23.0 | 9.4 | 8.7* | ||
| 14.5 | 28.0 | NA | 0.0 | |
| 24.0 | 2.0* | 0.7 | ||
| 23.0 | 10.5** | 8.9** | ||
|
| ||||
| Peiai64S (CK) | 11.5 | 28.0 | 0.0 | 0.0 |
| 24.0 | 10.0 | 2.4 | ||
| 12.5 | 28.0 | 4.9 | 0.0 | |
| 24.0 | 0.0 | 0.8 | ||
| 13.5 | 28.0 | 0.0 | 0.0 | |
| 24.0 | 0.2 | 0.4 | ||
| 23.0 | 8.3 | 3.5 | ||
| 14.5 | 28.0 | 0.0 | 0.0 | |
| 24.0 | 0.0 | 0.0 | ||
| 23.0 | 0.0 | 0.0 | ||
NA, not available because of pollen degeneration.
*
Significant at the 0.05 probability level.
**
Significant at the 0.01 probability level.