Table 4.
Effect of different induced lodging angles (0°, 30°, 60°, and 90°), plant densities (D15, 15 plants m−2; D30, 30 plants m−2; and D45, 45 plants m−2), and nitrogen rates (N180, 180 kg N ha−1; N270, 270 kg N ha−1; and N360, 360 kg N ha−1) on silique weight, silique numbers and aboveground dry weight of rapeseed during the growing seasons of 2015/2016 and 2016/2017.
| Treatments | Silique weight (g plant−1) | Silique no. (plant−1) | Plant height (cm) | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Year | Nitrogen | Density | 0° | 30° | 60° | 90° | 0° | 30° | 60° | 90° | 0° | 30° | 60° | 90° |
| 2015/16 | N180 | D15 | 14.99 | 11.22 | 9.48 | 8.97 | 249.8 | 237 | 220.4 | 176.4 | 157.4 | 150.7 | 152.4 | 151.6 |
| D30 | 12.13 | 10.31 | 7.82 | 7.62 | 233.6 | 211.3 | 199.6 | 167.1 | 144.7 | 148.9 | 151.9 | 149.3 | ||
| D45 | 11.74 | 8.64 | 7.03 | 6.73 | 221.3 | 103.6 | 203.7 | 155.2 | 134.2 | 135.0 | 141.5 | 140.7 | ||
| N270 | D15 | 14.63 | 13.89 | 9.48 | 7.27 | 265.8 | 244.7 | 229.6 | 188.2 | 164.8 | 162.5 | 156.0 | 155.0 | |
| D30 | 13.95 | 11.35 | 7.01 | 7.54 | 252.8 | 220.7 | 190.5 | 170.4 | 166.8 | 158.3 | 166.3 | 150.1 | ||
| D45 | 12.93 | 9.37 | 6.51 | 6.55 | 241.7 | 116.7 | 183.7 | 177.2 | 160.5 | 139.5 | 162.2 | 149.7 | ||
| N360 | D15 | 16.78 | 13.50 | 9.67 | 8.77 | 274.2 | 260 | 233.7 | 196.3 | 181.6 | 171.3 | 171.7 | 167.0 | |
| D30 | 15.35 | 14.62 | 9.10 | 7.68 | 262.7 | 233 | 212.5 | 194.8 | 167.8 | 172.7 | 161.7 | 150.2 | ||
| D45 | 12.71 | 11.03 | 9.22 | 6.10 | 250.2 | 198 | 178.8 | 173.6 | 162.9 | 151.7 | 141.9 | 139.8 | ||
| 2016/17 | N180 | D15 | 14.92 | 12.71 | 9.75 | 9.88 | 241.6 | 240.7 | 195.7 | 166.2 | 164.7 | 155.9 | 157.9 | 155.6 |
| D30 | 14.31 | 11.12 | 9.22 | 9.03 | 228.5 | 117 | 199.4 | 140.6 | 145.7 | 145.2 | 147.8 | 142.7 | ||
| D45 | 12.57 | 9.89 | 8.83 | 7.85 | 230.1 | 62.3 | 166.8 | 133.9 | 136.4 | 136.2 | 143.6 | 138.4 | ||
| N270 | D15 | 18.71 | 15.75 | 10.88 | 10.8 | 257.3 | 254.3 | 220.5 | 170.7 | 167.2 | 160.1 | 164.0 | 151.9 | |
| D30 | 17.88 | 12.73 | 10.92 | 7.79 | 244.4 | 239.3 | 188.1 | 166.3 | 153.1 | 141.6 | 152.2 | 149 | ||
| D45 | 15.98 | 10.52 | 10.75 | 9.47 | 230.3 | 130.7 | 171.6 | 152.3 | 148.8 | 140.3 | 135.0 | 148.4 | ||
| N360 | D15 | 20.04 | 17.32 | 15.84 | 10.81 | 268.5 | 257.2 | 228.1 | 188.2 | 177.0 | 173.5 | 170.3 | 170.7 | |
| D30 | 19.04 | 14.57 | 14.47 | 10.2 | 258.2 | 248 | 202.4 | 156.6 | 168.1 | 160.4 | 155.8 | 158.8 | ||
| D45 | 14.13 | 13.45 | 12.37 | 9.77 | 248.7 | 226.3 | 180 | 163.3 | 152.6 | 168.7 | 144.8 | 149.9 | ||
| Year (Y) | ** | ns | ns | |||||||||||
| Lodging (L) | *** | *** | ns | |||||||||||
| Nitrogen (N) | * | ** | *** | |||||||||||
| Density (D) | *** | ** | ns | |||||||||||
| Y × L × N × D | ns | ns | ns | |||||||||||
ns, not significant; *, ** and ***, significant at P < 0.05, 0.01 and 0.001, respectively, n = 4.