Table 6.
Effect of stubble height and water management practices on regrowth rate and maximum tillers in the perennial rice system from 2018 to 2019.
Year | Stubble Height (cm) | Regrowth Rate (%) | Maximum Tiller (Tillers per Hill) | ||
---|---|---|---|---|---|
Shallow Irrigation | Dry and Wet Alternation | Shallow Irrigation | Dry and Wet Alternation | ||
2018 | 0 | 0.00 b | 0.00 d | 0.00 c | 0.00 d |
10 | 73.35 a | 100.00 a | 10.41 a | 16.64 a | |
20 | 74.22 a | 100.00 a | 10.68 a | 17.38 a | |
30 | 75.15 a | 97.29 b | 7.14 b | 13.91 b | |
40 | 74.53 a | 94.71 c | 7.62 b | 11.27 c | |
2019 | 0 | 0.00 b | 0.00 d | 0.00 c | 0.00 d |
10 | 80.37 a | 100.00 a | 12.64 a | 18.32 a | |
20 | 81.16 a | 100.00 a | 12.91 a | 19.15 a | |
30 | 81.11 a | 95.24 b | 9.57 b | 15.77 b | |
40 | 82.51 a | 96.65 c | 8.80 b | 12.03 c | |
Analysis of variance | |||||
Year (Y) | * | ** | |||
Water management (W) | ** | ** | |||
Stubble height (H) | ** | ** | |||
Y × W | * | ** | |||
Y × H | ns | ** | |||
W × H | ** | ** | |||
Y × W × H | ** | ** |
Note: Different lowercase letters in the same column indicate significant differences up to the 0.05 level. * and ** denote significant differences at the 0.05 and 0.01 probability levels, respectively, as determined using ANOVA. ns denotes non-significance based on ANOVA.