Table 3.
Analysis of variance of the effects of population (fixed), treatment (self- versus cross-fertilization, fixed) and maternal plant (random) nested within population
| Life stage | Source of variation | d.f. | MS | F | P |
|---|---|---|---|---|---|
| Seeds per fertilized ovule | Treatment | 1 | 3·66 | 34·71 | 0·000 |
| Population | 2 | 2·93 | 26·69 | 0·000 | |
| Maternal plant (population) | 33 | 0·12 | 1·04 | 0·451 | |
| Treatment × population | 2 | 0·55 | 5·19 | 0·010 | |
| Treatment × maternal plant (population) | 33 | 0·11 | 1·61 | 0·026 | |
| Rate of germination | Treatment | 1 | 0·032 | 1·48 | 0·235 |
| Population | 2 | 4·304 | 77·77 | 0·000 | |
| Maternal plant (population) | 27 | 0·055 | 2·55 | 0·009 | |
| Treatment × population | 2 | 0·018 | 0·81 | 0·454 | |
| Survival to 2 weeks | Treatment | 1 | 0·009 | 1·50 | 0·231 |
| Population | 2 | 0·058 | 9·34 | 0·001 | |
| Maternal plant (population) | 27 | 0·009 | 1·39 | 0·197 | |
| Treatment × population | 2 | 0·021 | 3·36 | 0·050 | |
| Survival from 2 weeks to flowering | Treatment | 1 | 0·005 | 1·546 | 0·224 |
| Population | 2 | 0·005 | 1·850 | 0·177 | |
| Maternal plant (population) | 27 | 0·003 | 0·868 | 0·643 | |
| Treatment × population | 2 | 0·004 | 1·238 | 0·306 | |
| Above-ground biomass | Treatment | 1 | 27·02 | 12·88 | 0·001 |
| Population | 2 | 80·91 | 13·74 | 0·000 | |
| Maternal plant (population) | 27 | 6·108 | 2·821 | 0·004 | |
| Treatment × population | 2 | 1·222 | 0·579 | 0·567 | |
| Treatment × maternal plant (population) | 27 | 2·166 | 2·754 | 0·000 |
Lack of replication within maternal plants precludes a test of the treatment × maternal plant interaction for germination and survival variables.