Table 2.
Results of interploidy crosses between diploid and tetraploid lily varieties and crosses between tetraploids and N2O-treated plants
| Female parent | Male parent | No. of flowers pollinated | No. of ovaries developed | No. of seeds obtained per capsule (mean ± SD) | Ploidy level of seeds (%) | ||
|---|---|---|---|---|---|---|---|
|
| |||||||
| 2×a | 4× | 5× | |||||
| Diploid × diploid | |||||||
| Mona (2×) | Regata (2×) | 5 | 5 | 125.8 ± 18.2 | 100 n = 20 |
0 | 0 |
| Tetraploid × tetraploid | |||||||
| Gran Paradiso (4×) | Loreto (4×) | 9 | 9 | 33.7 ± 16.7 | 0 | 100 n = 45 |
0 |
| Tetraploid × diploid | |||||||
| Gran Paradiso (4×) | Regata (2×) | 10 | 0 | – | – | – | – |
| Tetraploid × N2O-treated plants | |||||||
| Gran Paradiso (4×) | Regata (2×) | 71 | 42 | 3.1 ± 2.7 | 0 | 100 n = 41 |
0 |
| Gran Paradiso (4×) | Royal Torinity (3×) | 11 | 8 | 5.5 | 0 | 0 | 100 n = 41 |
a
Ploidy of mature seeds was determined by flow cytometry (n = the number of seeds examined).