Table 2. The grain yield components of maize in 2017.
| Treatment | Denisity (plants m−2) | Line grain number | 100-grain weight (g) 100- | Kernel weight (g) | Yield (kg ha-1) |
|---|---|---|---|---|---|
| SN 65 + 65 | 6.5 | 29.32±1.86cd | 34.25±0.11cd | 155.10±6.03d | 10110.2±234.17e |
| SN 160 + 40 | 6.5 | 31.39±0.58ab | 36.67±1.02ab | 166.07±6.74b | 10825.1±108.28b |
| EW 65 + 65 | 6.5 | 28.16±1.86d | 32.90±0.26d | 149.00±11.93d | 9712.3±206.32f |
| EW 160 + 40 | 6.5 | 30.33±2.08bc | 35.43±0.32bc | 160.45±8.92c | 10458.7±48.70c |
| SW 20 65 + 65 | 6.5 | 30.14±0.88bc | 35.21±0.39bc | 159.46±10.74c | 10394.3±175.82d |
| SW 20 160 + 40 | 6.5 | 32.70±0.33a | 38.20±1.23a | 173.00±24.96a | 11276.8±94.52a |
Notes: SN: south-to-north orientation; EW: east-to-west orientation; SW20: northeast-to-southwest orientation, where the orientation was southwestern 20°; 65 + 65: 65 cm of both rows; 160 + 40: 40 cm of narrow row and 160 cm of wide row. Data are means ± SD (n = 5). Lower case letters in the table indicate significant differences at P < 0.05.