Table 2. Fertility studies of interspecific hybrid between G. arboreum and G. hirsutum to produce the BC1 to BC3 progenies.
| Parentage | Year | No. ofplants* | No. ofpollinations | No. of bollspicked | Boll setting(%) | No. of seedobtained | No. of seedgerminated | Germination(%) |
| BC1 [2(G. arboreum)×G. hirsutum] | 2009–11 | 15 | 12890 | 338 | 2.6 | 57 | 20 | 35.1 |
| BC1 (G. hirsutum×G. arboreum) | 2009–11 | 12 | 8144 | 265 | 3.3 | 48 | 25 | 52.1 |
| BC2 [2(G. arboreum)×G. hirsutum] | 2012 | 14 | 1495 | 19 | 1.3 | 22 | 11 | 45.5 |
| BC2 (G. hirsutum×G. arboreum) | 2012 | 155 | 299 | 117 | 39.1 | 519 | 340 | 65.5 |
| BC3 [2(G. arboreum)×G. hirsutum] | 2013 | 12 | 980 | 15 | 1.5 | 52 | 24 | 46.1 |
| BC3 (G. hirsutum×G. arboreum) | 2013 | 225 | 7263 | 3123 | 42.9 | 412 | 276 | 67.0 |
*Number of plants used for pollination and recording data.