Correlation and path analysis for yield and yield components in common bean genotypes (Phaseolus vulgaris L.)
2013
Önder Mustafa | Kahraman Ali | Ceyhan Ercan
Determination of breeding criteria is quite important for plant breeders. The present study was carried out to determine yield and its components which are affecting seed yield and to study the relationships between yield components and other characteristics. A total of 42 common bean genotypes that are widely grown in Turkey were used as material. Direct and indirect effects of the yield components on seed yield were analyzed using path coefficient analysis. Seed yield (kg ha-1) was most affected by biologic yield (84.56%), harvest index (65.47%) as positive and negatively affected by number of main branches per plant (28.45%) and flowering day (13.27%) respectively. Correlation analysis showed that seed yield (kg ha-1) was effected by biologic yield (0.8224**), harvest index (0.2913**) as positive and negatively affected by flowering day (-0.3256**), first pod height (-0.2473**), plant height (-0.2406**) and pod number per plant (-0.2272*) respectively. According to the path analysis, the biologic yield, harvest index, number of main branch per plant and days to flowering are important due to direct effect on the increase of seed yield on selection studies.
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