Table 1.
Number of seeds produced and germinated in relation to the number of crosses carried out, cross fertility and the number of self-fertilised seed produced for each generation of the introgression programme for T. timopheevii into hexaploid wheat
| Seeds sown | Germination rate (%) | Crosses made | Cross fertility (%) | Crossed seeds produced | Seeds/Cross | Self-fertilised seeds produced | |
|---|---|---|---|---|---|---|---|
| Wheat × T. timopheevii | – | – | 424 | 5 | 150 | 0.3 | – |
| F1 | 86 | 85 | 351 | 16 | 152 | 0.4 | 0 |
| BC1 | 90 | 42 | 204 | 94 | 1317 | 6.5 | 395 |
| BC2 | 187 | 78 | 641 | 93 | 6398 | 10 | 3077 |
| BC3 | 101 | 81 | 312 | 99 | 4637 | 15 | 3471 |
| BC4 | 6 | 67 | 15 | 100 | 229 | 15.3 | 75 |
| Total | 470 | – | 1947 | – | 12,883 | – | 7018 |