Table 2.
Number of seed produced and germinated in relation to the number of crosses carried out for each generation of the introgression programme for Ae. speltoides into wheat
| Wheat × Ae. speltoides | F 1 | BC1 | BC2 | BC3 | BC4 | Total | |
|---|---|---|---|---|---|---|---|
| Number of seeds sown | NA | 20 | 22 | 400 | 187 | 173 | 802 |
| Number of seeds that germinated (%) | NA | 3 (15) | 22 (100) | 292 (73) | 130 (70) | 135 (78) | 582 |
| Number of plants that set seed (%) | NA | 3 (100) | 22 (100) | 261 (89) | 124 (95) | 117 (87) | 527 |
| Number of seed/total number of crosses (average number of seed set per crossed ear) | 127/26 (4.9) | 22/35 (0.6) | 509/357 (1.4) | 5743/2180 (2.6) | 3204/876 (3.7) | 348/416 (0.8) | 9963/3890 |
| Number of crosses producing seed (%) | 18 (69) | 10 (29) | 207 (58) | 1579 (72) | 730 (83) | 350 (84) | 2894 |
| Number of self seed produced | 0 | 0 | 21 | 520 | 753 | 735 | 2029 |