Table 3.
Statistical analyses (contingency analysis and Pearson's χ2-test) of the effects of ecotype, pre-chilling (5 vs. 20–25 °C) and growth temperature (16/10, 22/16 and 28/22 °C) on the percentage of flowering and the percentage of dormant P. bulbosa plants in SD (9 h), at age 3 months and 5 months after planting
| 3 months SD |
5 months SD |
|||||||
|---|---|---|---|---|---|---|---|---|
| % flowering plants |
% dormant plants |
% flowering plants |
% dormant plants |
|||||
| Factor | χ2 | P | χ2 | P | χ2 | P | χ2 | P |
| Ecotype | 87·1 | 0·0001 | 61·5 | 0·0001 | 17·8 | 0·0005 | 32·4 | 0·0001 |
| Pre-chilling | 4·9 | 0·027 | 32·6 | 0·0001 | 0·3 | 0·6 | 4·6 | 0·03 |
| Temperature | 217·6 | 0·0001 | 137·4 | 0·0001 | 268·5 | 0·0001 | 136·7 | 0·0001 |
| d.f.error | 644 | 644 | 448 | 448 | ||||
Ecotypes were arid and flowering, semi-arid and flowering, semi-arid and non-flowering, and mesic and non-flowering.