Table 1: ANOVA for line × tester analysis.

Source of variationDegree of freedom (df)Mean square

Replication ( ) ( )
Genotypes ( )( )
Parents ( )( )
Parents versus crosses
Crosses ( )( )
Lines ( )( )
Testers ( )( )
Lines × testers( )
Error ( )( )

Where , , , , and were genotypic mean square, line mean square, tester mean square, line × tester mean square, and error mean square, respectively.