Table 1.
Results from ANOVA models evaluating the effects of population and all precipitation treatments on the mean germination time (MGT) and dormancy fraction (FDS) in response to different precipitation regimes
| Source | MGT |
FDS |
||||||
|---|---|---|---|---|---|---|---|---|
| d.f. | MS | F | P | d.f. | MS | F | P | |
| Population | 5 | 97·57 | 9·76 | <0·01 | 5 | 0·27 | 8·83 | <0·01 |
| TAS | 2 | 104·34 | 10·44 | <0·01 | 2 | 0·30 | 10·00 | <0·01 |
| Population × TAS | 10 | 23·05 | 2·31 | 0·02 | 10 | 0·06 | 2·11 | 0·03 |
| WA | 1 | 702·99 | 70·32 | <0·01 | 1 | 0·82 | 27·12 | <0·01 |
| Population × WA | 5 | 9·53 | 0·95 | 0·45 | 5 | 0·02 | 0·56 | 0·73 |
| WA × TAS | 2 | 5·08 | 0·51 | 0·60 | 2 | 0·01 | 0·31 | 0·73 |
| Population × WA × TAS | 10 | 29·99 | 3·00 | 0·00 | 10 | 0·02 | 0·65 | 0·77 |
| IL | 1 | 78·91 | 7·89 | 0·01 | 1 | 0·48 | 15·91 | 0·00 |
| Population × IL | 5 | 0·47 | 0·05 | 1·00 | 5 | 0·08 | 2·61 | 0·03 |
| WA × IL | 1 | 1·61 | 0·16 | 0·69 | 1 | 0·05 | 1·68 | 0·20 |
| Population × WA × IL | 5 | 4·38 | 0·44 | 0·82 | 5 | 0·06 | 1·83 | 0·11 |
| TAS × IL | 2 | 0·85 | 0·09 | 0·92 | 2 | 0·27 | 9·04 | 0·00 |
| Population × TAS × IL | 10 | 10·03 | 1·00 | 0·45 | 10 | 0·07 | 2·27 | 0·02 |
| WA × TAS × IL | 2 | 2·39 | 0·24 | 0·79 | 2 | 0·22 | 7·39 | 0·00 |
| Population × WA × TAS × IL | 7 | 9·48 | 0·95 | 0·47 | 10 | 0·04 | 1·41 | 0·18 |
| Seed weight | 1 | 0·23 | 0·02 | 0·88 | 1 | 0·00 | 0·05 | 0·83 |
Seed weight was included as a covariate to account for maternal effects. The overall model for each variable was statistically significant (MGT: d.f. = 69, MS = 38·68, F = 3·87, P = 0·01, R2 = 0·72; FDS: d.f. = 72, MS = 0·10, F = 3·36, P < 0·01, R2 = 0·72).
TAS, time of precipitation addition after summer treatment ended (three levels); WA, amount of water added at watering event (two levels); IL, inundation length following watering event (two levels).