Length of floret (mm) | Color of floret | State of microspore | Callus induction rate (%) |
>6.0 | Brown | Mature pollen | 1.25 ± 1.25e* |
5.9 - 6.0 | Deep yellow | Mature pollen | 33.75 ± 6.57d |
3.8 - 5.9 | Yellow | Mature pollen | 45.00 ± 2.04c |
2.6 - 3.8 | Faint yellow | Late uninucleate | 83.75 ± 5.15b |
1.8 - 2.6 | Faint yellow | Middleuninucleate, late uninucleate | 96.25 ± 1.25a |
1.2 - 1.8 | Colorless or pale green | Middleuninucleate | 98.75 ± 1.25a |
0.8 - 1.2 | Colorless or pale green | Early-middle uninucleate | 96.67 ± 1.67a |
0.6 - 0.8 | Colorless or pale green | Early uninucleate | 96.25 ± 2.39a |