Table 3.
Three-way ANOVA of the effects of treatment (open vs. supplemented pollination), population and year (2002 vs. 2003) on mean seed set and seeds produced per plant
| Source of variation | d.f. | MS | F | P |
|---|---|---|---|---|
| Seed set | ||||
| Treatment | 1 | 10201·92 | 39·35 | <0·0001 |
| Population | 2 | 1269·37 | 4·90 | 0·0086 |
| Year | 1 | 3718·59 | 14·34 | 0·0002 |
| Treatment × population | 2 | 1045·43 | 4·03 | 0·0195 |
| Treatment × year | 1 | 246·88 | 0·95 | 0·3306 |
| Population × year | 2 | 5587·00 | 21·55 | <0·0001 |
| Treatment × population × year | 2 | 711·82 | 2·75 | 0·0672 |
| Error | 228 | 259·25 | ||
| Seeds produced per plant | ||||
| Treatment | 1 | 13721603·3 | 92·3 | <0·0001 |
| Population | 2 | 464111·23 | 3·12 | 0·0464 |
| Year | 1 | 10055979 | 67·64 | <0·0001 |
| Treatment × population | 2 | 319613·37 | 2·15 | 0·1193 |
| Treatment × year | 1 | 842435·91 | 5·67 | 0·0183 |
| Population × year | 2 | 1965146·22 | 13·22 | <0·0001 |
| Treatment × population × year | 2 | 342907·43 | 2·31 | 0·1024 |
| Error | 199 | 148661·31 |
The analysis included the three populations of N. linariifolia studied for 2 years.