Table 2.
Effect of autumn or winter temperature and drop in temperature from the previous season (summer in the case of autumn, autumn in the case of winter) on the germination of Galanthus nivalis seeds during autumn (year) 1, winter 1, autumn 2 and winter 2, calculated as a percentage (mean ± s.e., nt = 9) of those seeds that had not germinated at the start of each season
| Temperature drop (°C) | Germination temperature (°C) | |||||
|---|---|---|---|---|---|---|
| Autumn 1 | Autumn 2 | |||||
| 5 | 10 | 15 | 5 | 10 | 15 | |
| 0 | – | – | 13 ± 1.9 | – | – | 15 ± 2.4 |
| 5 | – | 08 ± 1.3 | 47 ± 2.6 | – | 09 ± 2.4 | 01 ± 0.5 |
| 10 | 1 ± 0.4 | 11 ± 1.2 | 36 ± 2.0 | 3 ± 0.8 | 10 ± 1.8 | 07 ± 1.3 |
| 15 | 1 ± 0.5 | 02 ± 0.6 | – | 2 ± 1.2 | 08 ± 2.1 | – |
| 20 | 0 ± 0.0 | – | – | 3 ± 2.0 | – | – |
| Winter 1 | Winter 2 | |||||
| 0 | 5 | 10 | 0 | 5 | 10 | |
| 0 | – | 0 ± 0.0 | 0 ± 0.0 | – | 0 ± 0.0 | 0 ± 0.0 |
| 5 | 0 ± 0.0 | 0 ± 0.3 | 3 ± 1.2 | 0 ± 0.0 | 1 ± 0.5 | 1 ± 0.6 |
| 10 | 0 ± 0.0 | 2 ± 0.7 | – | 0 ± 0.0 | 0 ± 0.3 | – |
| 15 | 1 ± 0.4 | – | – | 1 ± 0.7 | – | – |