Publication | Open Access
Genetic variability, correlation and path coefficient analysis for yield and yield components in transplant aman rice (Oryza sativa L.)
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2018
Year
Transplant Aman RicePath Coefficient AnalysisCrop ProductionQuantitative GeneticsBotanyGeneticsProductive TillersHarvest IndexAgricultural EconomicsCrop ScienceGenetic VariabilityCrop YieldGenetic VariationCrop ImprovementFlag Leaf AreaMedicinePlant Breeding
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.