| Location | Tabulated T-value | Calculated T-value |
| Gedaref Area | 5.598 | 7.100* |
| Khartoum Area | 7.453 | 2.730N.S |
| Gezira State Area | 5.598 | 5.813* |
| Khartoum North Area | 4.773 | 5.244* |
| College of Agricultural Studies Farm | 4.773 | 4.730N.S |