| Analysis of variance | df | Total | Soluble | Insoluble |
| Plant part | 4 | *** | *** | *** |
| Treatment | 1 | *** | *** | ns |
| Plant part × treatment | 5 | *** | *** | * |
| LSD plant part (5%) |
| 0.92 | 0.65 | 1.05 |
| LSD treatment (5%) |
| 0.53 | 0.38 | 0.61 |
| LSD plant part × treatment (5%) |
| 1.30 | 0.92 | 1.48 |