| Types of sorghum | Sweet grain sorghum | Sweet stalk sorghum | Grain sorghum |
| Sweet grain sorghum | 0 | 0.017* | 0.033ns |
| Sweet stalk sorghum | 0.12 | 0 | 0.27ns |
| Grain sorghum | 0.08 | 0.02 | 0 |