Table 3 Aboveground biomass, crop growth rate (CGR), and harvest index (HI) in machine-transplanted double-cropped rice under different sowing periods in 2015 and 2016.
Season | Cultivar | Sowing date delay (days) | Aboveground biomass (g m−2) | CGR | HI | ||
|---|---|---|---|---|---|---|---|
FH | MA | FH | MA | ||||
2015 ER | ZZ39 | +0 | 954 | 11.0 | 63.5 | ||
+5 | 979 | 11.7 | 62.7 | ||||
+10 | 1158 | 14.0 | 58.2 | ||||
+15 | 1042 | 12.6 | 57.0 | ||||
2016 ER | ZZ39 | + 0 | 703 | 1330 | 11.2 | 12.2 | 59.2 |
+5 | 771 | 1348 | 12.6 | 12.5 | 60.3 | ||
+10 | 639 | 1174 | 10.8 | 11.0 | 56.2 | ||
+15 | 636 | 1291 | 11.6 | 12.3 | 57.4 | ||
LLY268 | + 0 | 863 | 1333 | 12.4 | 11.8 | 53.7 | |
+5 | 756 | 1363 | 11.6 | 12.2 | 52.5 | ||
+10 | 801 | 1332 | 12.5 | 11.9 | 43.2 | ||
+15 | 847 | 1383 | 13.9 | 12.6 | 46.3 | ||
+0 | 783 ± 113a | 1206 ± 218a | 11.8 ± 0.8a | 11.7 ± 0.6a | 58.8 ± 4.9a | ||
+5 | 764 ± 11a | 1230 ± 218a | 12.1 ± 0.7a | 12.1 ± 0.4a | 58.5 ± 5.3a | ||
+10 | 720 ± 115a | 1221 ± 96a | 11.7 ± 1.2a | 12.3 ± 1.5a | 52.5 ± 8.1a | ||
+15 | 742 ± 149a | 1239 ± 176a | 12.8 ± 1.6a | 12.5 ± 0.2a | 53.6 ± 6.3a | ||
LSD0.05 | 305 | 346 | 3.2 | 1.6 | 11.9 | ||
2015 LR | HY518 | + 0 | 1216 | 14.1 | 59.7 | ||
+5 | 1116 | 11.7 | 51.8 | ||||
+10 | 1102 | 11.8 | 56.6 | ||||
+15 | 1231 | 13.0 | 54.0 | ||||
+20 | 1013 | 10.0 | 46.9 | ||||
2016 LR | HY518 | + 0 | 957 | 1825 | 17.1 | 19.2 | 54.4 |
+5 | 895 | 1721 | 16.0 | 18.1 | 53.1 | ||
+10 | 1010 | 1713 | 18.4 | 18.0 | 53.0 | ||
+15 | 1046 | 1761 | 19.4 | 18.3 | 48.0 | ||
+20 | 989 | 1712 | 18.0 | 17.8 | 41.7 | ||
TY390 | + 0 | 975 | 1538 | 16.0 | 17.3 | 53.2 | |
+5 | 1116 | 1868 | 18.6 | 17.8 | 48.8 | ||
+10 | 1058 | 1632 | 17.9 | 15.2 | 47.6 | ||
+15 | 944 | 1678 | 15.7 | 15.5 | 42.0 | ||
+20 | 1117 | 1676 | 18.3 | 15.8 | 26.4 | ||
+0 | 966 ± 13a | 1526 ± 305a | 16.6 ± 0.8a | 16.9 ± 2.6a | 55.8 ± 3.5a | ||
+5 | 1006 ± 156a | 1568 ± 399a | 17.3 ± 1.8a | 15.9 ± 3.6a | 51.2 ± 2.2a | ||
+10 | 1034 ± 34a | 1482 ± 332a | 18.2 ± 0.4a | 15.0 ± 3.1a | 52.4 ± 4.5a | ||
+15 | 995 ± 72a | 1557 ± 285a | 17.6 ± 2.6a | 15.6 ± 2.7a | 48.0 ± 6.0ab | ||
+20 | 1053 ± 91a | 1467 ± 394a | 18.2 ± 0.2a | 14.5 ± 4.1a | 38.3 ± 10.7b | ||
LSD0.05 | 227 | 629 | 3.8 | 5.9 | 11.1 | ||
