Table 4.
Yield components relative to N application rate and planting density in inbred and hybrid rice varieties at Hangzhou.
| Variety | N | D | Panicles | Skikete panicle−1 | Seed setting precentage(%) | 1000-grain weight(mg) |
|---|---|---|---|---|---|---|
| HHZ | N0 | D1 | 196.8g | 165.5b | 92.8a | 18.9ab |
| D2 | 223.5fg | 169.8ab | 91.9a | 18.8ab | ||
| D3 | 244.7defg | 166.8b | 92.7a | 19.0ab | ||
| N1 | D1 | 240.5efg | 170.1ab | 92.7a | 18.8ab | |
| D2 | 259.5cdef | 177.3ab | 92.4a | 19.0ab | ||
| D3 | 304.0bc | 174.0ab | 93.2a | 18.1b | ||
| N2 | D1 | 278.5cde | 191.0a | 91.5a | 18.2b | |
| D2 | 348.6ab | 184.7ab | 91.2a | 19.0ab | ||
| D3 | 377.2a | 186.3ab | 94.3a | 18.5ab | ||
| N3 | D1 | 358.3a | 190.9a | 91.0a | 19.1ab | |
| D2 | 297.4bcd | 190.7a | 92.6a | 18.9ab | ||
| D3 | 367.9a | 182.8ab | 93.2a | 19.4a | ||
| YD-6 | N0 | D1 | 161.0bc | 147.6bcd | 91.9a | 28.1ab |
| D2 | 177.5bc | 135.5d | 92.4a | 27.9b | ||
| D3 | 142.7c | 143.3cd | 89.9ab | 28.3ab | ||
| N1 | D1 | 169.9bc | 188.7a | 91.3a | 28.2ab | |
| D2 | 217.0ab | 182.3ab | 90.3ab | 28.3ab | ||
| D3 | 172.9bc | 159.3abcd | 87.5ab | 28.5ab | ||
| N2 | D1 | 173.1bc | 193.2a | 92.2a | 28.2ab | |
| D2 | 221.7ab | 174.9abc | 89.5ab | 28.2ab | ||
| D3 | 211.9ab | 177.0abc | 83.5b | 28.5ab | ||
| N3 | D1 | 205.8abc | 189.2a | 91.0a | 27.9b | |
| D2 | 248.3a | 177.8abc | 90.0ab | 28.9a | ||
| D3 | 265.9a | 166.7abcd | 85.4ab | 28.0b | ||
| ZZY-8 | N0 | D1 | 192.6d | 178.7c | 83.3abc | 22.5a |
| D2 | 203.6 cd | 193.8bc | 86.6a | 22.6a | ||
| D3 | 212.1bcd | 200.1bc | 83.4ab | 22.6a | ||
| N1 | D1 | 226.6abcd | 233.8ab | 81.5abcd | 22.8a | |
| D2 | 247.3abc | 230.1ab | 80.3abcd | 22.6a | ||
| D3 | 233.9abcd | 237.7ab | 81.0abcd | 22.1a | ||
| N2 | D1 | 236.3abcd | 250.9a | 80.1abcd | 22.5a | |
| D2 | 242.2abcd | 246.1a | 78.4bcde | 22.7a | ||
| D3 | 262.5ab | 245.2a | 81.4abcd | 22.5a | ||
| N3 | D1 | 246.8abc | 249.1a | 75.4de | 22.6a | |
| D2 | 264.8ab | 247.5a | 70.9e | 22.8a | ||
| D3 | 271.5a | 251.1a | 75.7cde | 22.6a | ||
| C-LYHZ | N0 | D1 | 201.2e | 183.3b | 86.3a | 20.9a |
| D2 | 235.1 cde | 181.9b | 84.7ab | 20.7ab | ||
| D3 | 226.5de | 179.6b | 84.5ab | 20.9a | ||
| N1 | D1 | 292.0ab | 211.8ab | 79.0abc | 20.4ab | |
| D2 | 308.7ab | 214.8ab | 78.2abc | 20.4ab | ||
| D3 | 285.8abc | 212.5ab | 80.2abc | 21.1a | ||
| N2 | D1 | 316.0ab | 218.6ab | 79.1abc | 21.0a | |
| D2 | 273.9bcd | 227.6a | 74.9c | 19.9b | ||
| D3 | 304.5ab | 225.4a | 74.3c | 20.4ab | ||
| N3 | D1 | 333.6a | 226.2a | 77.0bc | 20.7ab | |
| D2 | 323.9ab | 230.1a | 73.4c | 20.5ab | ||
| D3 | 337.8a | 231.5a | 73.7c | 20.9a | ||
| ANOVA | Variety (V) | ns | ns | ns | ns | |
| Nitrogen (N) | ** | * | ns | * | ||
| Density (D) | * | ns | ns | ns | ||
| V*N | * | ** | ns | ns | ||
| V*D | ns | ns | ns | ns | ||
| N*D | * | ns | ns | ns | ||
| V*N*D | ns | ns | ns | ns |
†Different lowercase letters within columns indicate significant differences at P < 0.05 across N rates (n = 3).
Different lowercase letters indicate significant differences at P < 0.05 (n = 3).