Stepwise, Backward and Path Coefficient Analysis for S1 and half-sib progenies developed from two different synthetic populations of maize (Zea mays L.)
1997
Husic, I. | Kojic, L. | Filipovic, M. | Trifunovic, S. (Maize Research Institute "Zemun Polje", Belgrade - Zemun (Yugoslavia))
Efficient visual selection is based on complex relations expressing the degree of yield dependence on yield components, i.e. on observed traits. Phenotypic correlations were used as a base for the Stepwise Regression Procedure, Backward Elimination Procedure and Path Coefficient Analysis in S1 and half-sib progenies derived from the two synthetic populations of maize (ZP Syn 99/9 and ZP Syn 101/9). The results obtained indicate that grain yield in both S1 and half-sib progenies was to the greatest extent determined by plant height, 1000-kernel weight along with either the number of kernels per row or the number of kernel rows per ear. Among the observed yield components the most marked, positive, direct effect on grain yield was detected in 1000-kernel weight. Among the studied vegetative traits it was plant height. These traits should form the base for indirect visual selection for increased grain yield.
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