Table 4.
Summary of pollen tube and seed results from controlled pollinations on tetraploid maternal trees; proportion of successful compatible crosses out of the total number of crosses performed is shown in parentheses
| Self pollination |
Cross pollination |
Interspecific (× S. aria) |
Emasculated; bagged |
Bagged and left |
||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Taxon | Pollen tube | Seed | Pollen tube | Seed | Pollen tube | Seed | Pollen tube | Seed | Pollen tube | Seed |
| S. eminens | + | + | + | + | + | + | Not pollinated | – | – | NT |
| (8/8) | (3/4) | (7/7) | (1/1) | (5/6) | (1/1) | (0/2) | (0/2) | |||
| S. porrigentiformis | + | + | + | + | + | + | NT | – | NT | NT |
| (6/6) | (5/5) | (5/5) | (6/6) | (4/4) | (3/3) | (0/1) | ||||
Definitions of +, – and +/– as for Table 2; NT, not tested.