GENETIC VARIABILITY AND CAUSAL RELATIONSHIPS IN RICE

A.ROY; D.V.S.PANWAR and R.N.SARMA

doi:https://doi.org/10.29321/MAJ.10.A01176

Madras Agricultural Journal

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GENETIC VARIABILITY AND CAUSAL RELATIONSHIPS IN RICE

Author: A.ROY, D.V.S.PANWAR and R.N.SARMA,

p-ISSN: 0024-9602, e-ISSN:2582-5321, Vol: 82, Issue: apr-apr,

DOI:https://doi.org/10.29321/MAJ.10.A01176

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Abstract

Variability, correlation and path coefficient analyses were made for 11 characters in a collection of 99 rice genotypes (Oryza sativa L.). Bacterial blight severity, plant height, spikelets/panicle and grains/panicle showed high heritability with high genetic advance. Yield/plant was positively associated with days to 50 per cent flowering, spikelets/panicle and milling per cent. Path coefficient analysis revealed grains/panicle, spikelets/panicle and bacterial blight severity are the most important characters contributing to yield

Keywords: Rice, Variability, Heritability, Correlation

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