Correlation and path coefficient analysis of thirteen rice genotypes for grain yield and other yield attributing traits

Abstract

The present investigation is carried out to study the correlation and path coefficient analysis in 13 genotypes of rice (Oryza sativa L.). Field experiment was conducted in a randomized block design with three replications during the Kharif season in 2014-15 at students instructional farm of Narendra Dev University of Agriculture and Technology, Kumarganj, Faizabad. Correlation coefficient analysis revealed that grain yield per plant showed highly significant and positive correlation with biological yield per plant, harvest index, flag leaf area and spikelets per panicle, while significant positive correlation with grains per panicle. Path analysis exhibited that spikelets per panicle, spikelets fertility and biological yield per plant showed positive direct effect on grain yield per plant. So, the improvement in grain yield would be effective and economical, if the selection is based on these component traits.