Correlation and path-coefficient analysis in diallel crosses for yield components of maize (Zea mays L.)
1999
Khan, J. (Agriculture Dept., Chilas (Pakistan)) | Shafiullah | Baitullah
The diallel analysis of variance indicated highly significant differences among the genotypes for all the characters except number of ears per plant. The correlation studies on seven characters of 4 parents and 6 hybrids revealed highly significant genotypic positive association between yield and yield components, whereas the phenotypic association of yield components with yield was positive and significant except number of ears per plant, where it was positive but non-significant. Among the characters studied, the number of rows per ear reflected the highest direct contribution of 0.636 and indirect average contribution of 0.605 towards grain yield. Number of ears per plant and number of rows per ear expressed the highest positive coefficient of correlation of 1.409 and 1.018 with grain yield, respectively.
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