Path coefficient analysis and correlation of grain yield and yield components of wheat (Triticum aestivum L.) genotypes
1999
Dokuyucu, T. | Akkaya, A. (KSU, Kahramanmaras (Turkey). Field Crops Dept.)
This research was carried out on 22 common wheat varieties in a randomized complete block design with four replications in 1996-1998 season in Kahramanmara, Turkey. In the trial, the following traits were investigated: number of heads per m2, number of grains per head, grain weight per head, test weight, and grain yield. Simple correlation and path coefficients were calculated to determine direct and indirect effects of traits on grain yield. There were positive and significant correlations between grain yield and number of heads per m2, number of grains per head, grain weight per head and test weight. Path coefficients also indicated that both direct effects of number of heads per m2 and grain weight per head, and indirect effect of number of grains per head by grain weight per head on grain yield, were significant and positive. Therefore, number of heads per m2, grain weight per head, and number of grains per head may be used as selection criteria in breeding programs to develop high yielding bread wheat varieties
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