Table 4.
Effect of cross-pollination treatments (within vs. between species, mother species, pin vs. thrum as mother, pin vs. thrum as father) on fruit set, seed production seed viability and viable seeds per flower
| Source | F-value | P-value |
|---|---|---|
| Fruit set* | ||
| Within–between species (WvBS) | 1·89 | 0·174 |
| Mother species (BvBM) | 38·436 | <0·001 |
| Pin/thrum as mother (PvTM) | 0·046 | 0·83 |
| Pin/thrum as father (PvTF) | 8·188 | 0·006 |
| BvBM × PvTM | 11·099 | 0·001 |
| PvTM × PvTF | 327·262 | <0·001 |
| WvBS × PvTM | 14·159 | <0·001 |
| BvBM × PvTF | 0·234 | 0·63 |
| WvBS × BvBM | 33·698 | <0·001 |
| WvBS × PvTF | 17·873 | <0·001 |
| BvBM × PvTM × PvTF | 1·599 | 0·211 |
| WvBS × BvBM × PvTM | 10·645 | 0·002 |
| WvBS × PvTM × PvTF | 50·649 | <0·001 |
| WvBS × BvBM × PvTF | 1·456 | 0·232 |
| WvBS × BvBM × PvTM × PvTF | 0·267 | 0·607 |
| Seed number* | ||
| WvBS | 0·599 | 0·442 |
| BvBM | 28·801 | <0·001 |
| PvTM | 3·862 | 0·054 |
| PvTF | 2·435 | 0·124 |
| BvBM × PvTM | 6·91 | 0·011 |
| PvTM × PvTF | 268·517 | <0·001 |
| WvBS × PvTM | 2·463 | 0·122 |
| BvBM × PvTF | 1·981 | 0·164 |
| WvBS × BvBM | 23·689 | <0·001 |
| WvBS × PvTF | 1·62 | 0·208 |
| BvBM × PvTM × PvTF | 2·868 | 0·095 |
| WvBS × BvBM × PvTM | 9·195 | 0·004 |
| WvBS × PvTM × PvTF | 62·947 | <0·001 |
| WvBS × BvBM × PvTF | 4·179 | 0·045 |
| WvBS × BvBM × PvTM × PvTF | 5·127 | 0·027 |
| Proportion of viable seed† | ||
| WvBS | 15·967 | 0·02 |
| BvBM | 30·354 | <0·001 |
| PvTM | 2·065 | 0·179 |
| PvTF | 0·114 | 0·742 |
| Number of viable seed per flower† | ||
| WvBS | 10·068 | 0·009 |
| BvBM | 18·004 | 0·001 |
| PvTM | 0·217 | 0·65 |
| PvTF | 0·021 | 0·888 |
*Interactions between ANOVA components are tested using five replicates for each treatment, each replicate comprising a single plant. Nominator d.f. = 1, denominator d.f. = 64.
†Interactions between ANOVA components cannot be tested for these variables because seeds for all five plants were pooled to test for viability. Nominator d.f. = 1, denominator d.f. = 11.