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Genetic Variability, Correlation and Path Coefficient Analysis for Yield and Yield Components in Transplant Aman Rice (Oryza Sativa L.)

Roy, R.K.; Majumder, R.R.; Sultana, S.; Hoque, M. E.; Ali, M. S.

Bangladesh Journal of Botany 44(4): 529-535

2015


ISSN/ISBN: 0253-5416
DOI: 10.3329/bjb.v44i4.38566
Accession: 066308404

Analysis of variance revealed significant differences among the genotypes for all the traits. Flag leaf area (0.643**), productive tillers per plant (0.450**), 1000-grain weight (0.785**) and harvest index (0.920**) showed positive and strong significant association with grain yield per plant at genotypic level whereas plant height (-0.418*) and per cent spikelet sterility (-0.489**) possessed significant negative correlation with grain yield per plant. Flag leaf area (0.157) productive tillers per plant (0.481), 1000-grain weight (0.228), growth duration (0.080) and harvest index (0.544) exhibited direct effect on grain yield. Considering the correlation and path analysis flag leaf area, productive tiller per plant, 1000-grain weight and harvest index are important characters to be considered for yield improvement.

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