Table 2.
Statistical analyses (ANOVA) of the effects of ecotype, pre-chilling (5 vs. 20–25 °C) and growth temperature (16/10, 22/16 and 28/22 °C) on age of flowering, percentage of flowering tillers and number of panicles per plant in SD (9 h), and age of dormancy in LD (16 h)
| SD |
LD |
|||||||
|---|---|---|---|---|---|---|---|---|
| Age at flowering |
% flowering tillers |
Panicles plant−1 |
Age at onset of dormancy |
|||||
| Factor | F | P | F | P | F | P | F | P |
| Ecotype (E) | 12·5 | 0·0001 | 82·0 | 0·0001 | 36·7 | 0·0001 | 189·0 | 0·0001 |
| Pre-chilling (Pr) | 23·0 | 0·0001 | 0·2 | 0·7 | 1·5 | 0·2 | 19·7 | 0·0001 |
| Temperature (T) | 22·8 | 0·0001 | 130·2 | 0·0001 | 114·7 | 0·0001 | 391·7 | 0·0001 |
| Interactions | ||||||||
| E × Pr | 4·4 | 0·005 | 0·4 | 0·7 | 3·4 | 0·02 | 3·8 | 0·01 |
| T × Pr | 1·4 | 0·24 | 0·8 | 0·5 | 3·3 | 0·04 | 0·2 | 0·813 |
| E × T | 3·2 | 0·04 | 8·5 | 0·0001 | 14·1 | 0·0001 | 3·5 | 0·002 |
| d.f.error | 244 | 402 | 412 | 748 | ||||
Flowering under LD was nil or very low. Therefore, daylength was not included as a factor in the ANOVA. Ecotypes were arid and flowering, semi-arid and flowering, semi-arid and non-flowering, and mesic and non-flowering. Most plants did not flower under LD and did not become dormant under SD.