Table 3. Effect of exogenous 6-BA on the mean endosperm cell division rate and max endosperm cell number of superior and inferior kernels under ambient (AT) and elevated temperature (ET) conditions.
| Cultivar | Treatment | Max endosperm cell number (× 103 cells per endosperm) | Mean endosperm cell division rate (× 103 cells per endosperm d-1) | |||
|---|---|---|---|---|---|---|
| Superior | Inferior | Superior | Inferior | |||
| Wennong 6 | AT | CC | 194.00 c | 72.85 bc | 14.22 b | 3.09 d |
| 6-BA | 208.54 a | 79.54 a | 13.33 c | 4.17 b | ||
| ET | HC | 187.10 d | 59.40 e | 12.87 c | 2.94 d | |
| H6-BA | 201.92 b | 69.35 cd | 13.33 c | 4.07 b | ||
| Jimai 20 | AT | CC | 166.51 f | 67.88 d | 14.42 b | 4.04 b |
| 6-BA | 180.69 e | 74.18 b | 16.63 a | 4.62 a | ||
| ET | HC | 138.24 h | 58.37 e | 10.87 d | 3.16 cd | |
| H6-BA | 152.11 g | 65.06 d | 10.96 d | 3.53 c | ||
| P-value | P(H) | 0.0001 | 0.0030 | 0.0001 | 0.0001 | |
| P (G) | 0.0001 | 0.0001 | 0.1114 | 0.01 | ||
| P (R) | 0.0001 | 0.0001 | 0.0023 | 0.0001 | ||
| P (H×G) | 0.0001 | 0.2797 | 0.0001 | 0.0003 | ||
| P (H×R) | 0.9947 | 0.4269 | 0.1554 | 0.6709 | ||
| P (G×R) | 0.8278 | 0.4269 | 0.0001 | 0.0036 | ||
| P (H×G×R) | 0.9212 | 0.5306 | 0.0001 | 0.4920 | ||
P values (P) for the effects of temperature (H), cultivars (G), 6-BA (R) and their interactions (H × G, H × R, G × R, H × G × R) are shown. Values followed by different letters within columns are significantly different at the 0.05 probability level.