| Cultivar | By product (kg∙ha−1) | Tops weight (kg∙ha−1) | ||||
| Obs. | Sim. | RMSE | Obs. | Sim. | RMSE | |
| Dawk Pa-yawm | 7208 | 7440 | 190 | 6890 | 6980 | 102 |
| Mai Tahk | 8050 | 8080 | 98 | 8879 | 8996 | 165 |
| Bow Leb Nahng | 8515 | 8720 | 87 | 7760 | 7890 | 89 |
| Dawk Kha 50 | 7350 | 7860 | 97 | 8850 | 8960 | 104 |
| Dawk Kahm | 7660 | 7860 | 95 | 7590 | 7780 | 93 |