| Treatments | Months after sowing | ||||
| 1 | 2 | 3 | 4 | 5 | |
| 1.0 m apart | 27.0 | 30.0 | 32.0 | 34.0 | 36.0 |
| 1.5 m“ | 23.0 | 28.0 | 31.9 | 33.9 | 36.4 |
| 2.0 m“ | 22.0 | 25.0 | 27.4 | 32.1 | 33.2 |
| 2.5 m“ | 21.0 | 23.0 | 27.4 | 28.7 | 29.7 |
| 3.0 m“ | 18.0 | 20.0 | 22.1 | 25.9 | 26.2 |
| Control | 17.0 | 19.0 | 21.1 | 23.7 | 24.5 |
| LSD (p < 0.05) | 3.46 | 4.67 | 5.17 | 5.8 | 5.3 |