| Effect |
| Value | F | Hypothesis df | Error df | Sig. |
| Time | Pillai’s Trace | 0.97 | 178.72 | 7.00 | 39.00 | <0.001 |
| Wilks’ Lamda | 0.03 | 178.72 | 7.00 | 39.00 | <0.001 | |
| Hostelling’s Trace | 32.07 | 178.72 | 7.00 | 39.00 | <0.001 | |
| Roy’s Large Root | 32.07 | 178.72 | 7.00 | 39.00 | <0.001 | |
| Time*Agroecological zone | Pillai’s Trace | 0.95 | 1.88 | 28.00 | 168.00 | 0.008 |
| Wilks’ Lamda | 0.28 | 2.12 | 28.00 | 142.03 | 0.002 | |
| Hostelling’s Trace | 1.77 | 2.37 | 28.00 | 150.00 | <0.001 | |
| Roy’s Large Root | 1.30 | 7.79 | 7.00 | 42.00 | <0.001 |