Table 5.
Rate of development of the first (F1) and second (F2) florets counted from the rachis at the central spikelets of genotypes differing in photoperiod sensitivity grown under a short photoperiod.
| Genotype | Rate of floret development [°Cd ×102]−1 | |
|---|---|---|
| F1 | F2 | |
| Triple Insensitive | 0.179 | 0.189 |
| P(S64-2D) | 0.195 | 0.223 |
| P(GS-100-2A) | 0.152 | 0.179 |
| P(CS-2B) | 0.139 | 0.132 |
| Paragon | 0.101 | 0.110 |
Rate of development was calculated as the reciprocal of the thermal-time elapsed from Waddington stages W4 to W10 (Waddington et al., 1983).