Table 7.
Different temperature treatments applied to plants 24 h before flowering
| Treatment | Temperature (°C) | Germination rate (%) |
|---|---|---|
| Temp. 1 | 15 | 22.7 ± 3.9 |
| Temp. 2 | 20 | 33.5 ± 1.6 |
| Temp. 3 | 25 | 74.1 ± 4.3* |
| Temp. 4 | 30 | 75.8 ± 5.5* |
| Temp. 5 | 35 | 34.2 ± 6.5 |
| Temp. 6 | 40 | 5.5 ± 3.2 |
| Temp. 7 | 45 | 4.7 ± 2.2 |
Germination rate is the mean ± SD of five replicates. * Indicates the first echelon of multiple comparison results. ANOVA on pollen germination showed that pollen germination rates differed significantly (P < 0.01) between the temperature treatments, with pollen from the 25 and 30 °C treatments showing significantly higher germination rates than the other treatments