Author(s): MUHAMMAD RAFIQUE, AMER HUSSAIN, TARIQ MAHMOOD, ABDUL WADOOD ALV, M BASHIR ALVI
Interrelationships of grain yield and its components were determined in 49 maize hybrids and 14 parental lines. The results indicated that grain yield was positively and significantly associated with all parameters studied. Kernels per row was highly positively correlated with grain yield, followed by plant height, ear height, length and its diameter. All these attributes were the main yield components. Heritability was also higher than 80% for all parameters showing heritable variation among genotypes. Heritability for kernel per row, plant height and grain yield per plant was higher than the other characters.