Location

Tabulated T-value

Calculated T-value

Gedaref Area

5.598

3.011^N.S

Khartoum Area

7.453

2.798^N.S

Gezira State Area

5.598

5.565^N.S

Khartoum North Area

4.773

5.3245^*

College of Agricultural Studies Farm

4.773

5.1412^*