Table 2.
Analysis of variance (ANOVA) of seed set for pollinations between diploid and established tetraploids and diploid and neotetraploids of Chamerion angustifolium. The independent variables are: maternal cytotype (2x or 4x), pollination treatment (2x, 4x or 2x + 4x mixture), and tetraploid type (4xest or 4xneo).
| source of variation | d.f. | d.f. error | F | p |
|---|---|---|---|---|
| maternal ploidy | 1 | 68 | 4.36 | 0.04 |
| pollination treatment | 2 | 68 | 0.71 | 0.50 |
| tetraploid type | 1 | 68 | 5.06 | 0.03 |
| maternal ploidy × pollination treatment | 2 | 68 | 23.78 | <0.001 |
| maternal ploidy × tetraploid type | 1 | 68 | 1.18 | 0.28 |
| pollination treatment × tetraploid type | 2 | 68 | 0.64 | 0.53 |
| maternal ploidy × pollination treatment × tetraploid type | 2 | 68 | 0.11 | 0.90 |