Correlation and Path Analysis for Yield and Quality Traits in Hybrid Rice (Oryza sativa L.)
J. Buelah *
Department of Genetics and Plant Breeding, Agricultural College, PJTSAU, Polasa, Jagtial, India.
V. Ram Reddy
Department of Genetics and Plant Breeding, Agricultural College, PJTSAU, Polasa, Jagtial, India.
B. Srinivas
Plant Breeding, PJTSAU, Regional Agricultural Research Station, Polasa, Jagtial, India.
N. Balram
Plant Pathology, PJTSAU, Regional Agricultural Research Station, Polasa, Jagtial, India.
*Author to whom correspondence should be addressed.
Abstract
24 hybrids generated by crossing four male sterile lines with six testers in line x tester fashion were studied along with their parents and checks (BIO-799 and PA 6129) for correlation and path analysis. The results emphasized the need for selection, based on plant type with greater plant height, number of productive tillers per plant, head rice recovery, milling percentage, spikelet fertility, panicle length and kernel length. Since, these traits were found to be the important direct contributors for grain yield.
Keywords: Correlation, correlation coefficients, grain yield per plant, path analysis and residual effect