Table 2.
Grain yield (kg ha−1) relative N application rate and planting density in inbred and hybrid rice at Hangzhou in 2018.
| Variety | N0 | N1 | N2 | N3 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| D1 | D2 | D3 | D1 | D2 | D3 | D1 | D2 | D3 | D1 | D2 | D3 | |
| HHZ | 6.24a | 6.24bc | 7.04a | 8.12a | 8.78b | 9.34ab | 9.80a | 9.61a | 9.33ab | 10.11a | 10.27a | 11.32a |
| YD-6 | 5.43a | 5.91c | 6.55a | 6.72b | 7.74c | 8.21ac | 8.62b | 8.61b | 8.90b | 7.92b | 8.54b | 9.92ab |
| ZZY-8 | 6.57a | 6.82ab | 7.11a | 8.47a | 9.72a | 8.41bc | 9.31a | 9.29ab | 9.81ab | 9.22a | 9.12b | 9.31b |
| C-LYHZ | 6.90a | 7.21a | 7.02a | 8.79a | 9.22ab | 9.52a | 9.91a | 9.13ab | 9.81a | 10.22a | 10.23a | 10.04ab |
| ANOVA | Variety (V) | ** | ||||||||||
| Nitrogen (N) | ** | |||||||||||
| Density (D) | ** | |||||||||||
| V*N | ns | |||||||||||
| V*D | ns | |||||||||||
| N*D | ns | |||||||||||
| V*N*D | ns | |||||||||||
†Different lowercase letters within columns indicate significant differences among varieties at P < 0.05 (n = 3). *P < 0.05. **P < 0.01. ns, not significant.