Table 1 Developmental process of megasporocytes after pollination in P. simonii × P. nigra var. italic.
Time after pollination (h) | Embryo sac percentage in each developmental stage (%) | *Percentage of inducible embryo sacs (%) | ||||||
|---|---|---|---|---|---|---|---|---|
Meiosis I | Meiosis II | Uni-nucleate embryo sac | Two-nucleate embryo sac | Four-nucleate embryo sac | Eight-nucleate embryo sac | Mature embryo sac and post | ||
0 | 12.70 | 28.57 | 36.51 | 14.29 | 7.94 | 58.73 | ||
12 | 5.00 | 33.33 | 35.00 | 18.33 | 6.67 | 1.67 | 60.00 | |
24 | 2.94 | 32.35 | 35.29 | 19.12 | 8.82 | 1.47 | 63.24 | |
36 | 3.17 | 19.05 | 36.51 | 25.40 | 11.11 | 4.76 | 73.02 | |
48 | 15.15 | 30.30 | 31.82 | 13.64 | 6.06 | 3.03 | 75.76 | |
60 | 26.87 | 34.33 | 22.39 | 10.45 | 5.97 | 83.58 | ||
72 | 16.42 | 32.84 | 17.91 | 19.40 | 13.43 | 67.16 | ||
96 | 5.08 | 20.34 | 22.03 | 28.81 | 23.73 | 47.46 | ||
120 | 18.03 | 44.26 | 37.70 | 18.03 | ||||
144 | 39.62 | 60.38 | 0.00 | |||||
