TABLE 2.
Difference in starch granule distribution (by number-, volume-, and surface-based percentages) among different treatments.
Cultivars | Treatments |
D ≤ 2.0 μm |
2.0 μm < D ≤ 8.0 μm |
D > 8.0 μm |
|||||||
Nitrogen levels | Temperature regimes | Number (%) | Volume (%) | Surface (%) | Number (%) | Volume (%) | Surface (%) | Number (%) | Volume (%) | Surface (%) | |
Xiushui134 | LN | NT | 44.89a | 4.62b | 15.48b | 54.68d | 45.39e | 77.18c | 0.43c | 50.00a | 7.34c |
HT | 25.66c | 2.63c | 41.70a | 73.55bc | 62.79d | 52.23d | 0.79a | 34.58b | 6.07d | ||
MN | NT | 28.86b | 4.06b | 5.19d | 70.66c | 79.22a | 84.60ab | 0.48c | 16.72d | 10.21a | |
HT | 25.12c | 3.07c | 7.60c | 74.15b | 69.71c | 80.90b | 0.73a | 27.22bc | 11.50a | ||
HN | NT | 47.09a | 5.24a | 14.33b | 52.31d | 74.19b | 77.12c | 0.60b | 20.57c | 8.54b | |
HT | 11.04d | 1.15d | 5.80cd | 88.63a | 66.72cd | 86.78a | 0.33d | 32.13b | 7.42c | ||
Xiushui09 | LN | NT | 64.95a | 4.30b | 18.27a | 34.13e | 45.53d | 64.65d | 0.92b | 50.18b | 17.08a |
HT | 16.96d | 1.55c | 4.72d | 82.12b | 64.90c | 85.48ab | 0.92b | 33.55c | 9.80b | ||
MN | NT | 43.68b | 6.24a | 15.25b | 55.91d | 74.20a | 77.93c | 0.41c | 19.56e | 6.82d | |
HT | 19.08d | 1.28c | 5.23d | 79.76b | 42.85d | 77.08c | 1.16a | 55.86a | 17.69a | ||
HN | NT | 32.00c | 4.26b | 10.97c | 67.59c | 70.61b | 81.58b | 0.41c | 25.13d | 7.45c | |
HT | 7.51e | 0.74d | 2.29e | 92.07a | 63.66c | 90.69a | 0.42c | 35.60c | 7.02cd | ||
Nitrogen | 229.10** | 12.18** | 398.05** | 200.90** | 203.51** | 138.79** | 214.64** | 154.46** | 330.75** | ||
Temperature | 2,402.79** | 511.30** | 26.80** | 1,990.43** | 10.52** | 25.25** | 30.38** | 76.76** | 10.31** | ||
Nitrogen × temperature | 127.83** | 9.52** | 126.71** | 112.57** | 344.09** | 28.87** | 184.43** | 276.85** | 577.46** |
LN, MN, and HN indicate low nitrogen, moderate nitrogen, heavy nitrogen, respectively; NT and HT indicate normal temperature and high temperature, respectively.
Data followed by the same small letter in the same column indicate insignificant difference (p < 0.05) between different treatments for the same rice cultivar; *, ** indicates the significance at 0.05 and 0.01 probability level, respectively.