Table 2.
Pollen tube growth in pistils of RNAi transgenics for HT-B
| Pistil | Pollen | |
| Hybrid background (S3LSm) | P. inflata (Sk1Sk1) | P. inflata (S3LS3L) |
| CH | 4/4 | 0/4 |
| 78 | 4/4 | 0/4 |
| 87 | 3/3 | 0/3 |
| 96 | 3/3 | 0/3 |
| 176 | 3/3 | 0/15 |
| 199 | 3/3 | 0/3 |
| 94 (DT) | 3/3 | 0/8 |
| Mitchell background (S3LSm) | ‘Mitchell’ (SmSm) | NIL Mitchell (S3LS3L) |
| CM | 3/3 | 0/5 |
| 8 | 3/3 | 0/3 |
| 52 | 5/5 | 4/8 |
| 82 | 3/3 | 0/3 |
| 157 | 3/3 | 0/3 |
| 173 | 3/3 | 0/3 |
| 208 | 3/3 | 4/5 |
Data are presented as the number of compatible pollinations over the total pollinations attempted. Crosses were considered as compatible when one or more pollen tubes were observed at the lower part of the style. CH and CM are untransformed controls of hybrid background and Mitchell background, respectively. DT denotes a double transformant.