alexa Abstract | Genetic Analysis and Traits Association in F2 Intervarietal Populations in Rice Under Aerobic Condition
ISSN: 2375-4338

Rice Research: Open Access
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Research Article Open Access

Abstract

Genetic variability studies provide basic information concerning the genetic properties of the population based on which breeding methods could be formulated for further improvement of the crop. The estimates of heritability, coefficients of variability and genetic advance was computed in F2 segregating populations of 15 crosses for 14 characters including drought and yield contributing traits under aerobic condition during dry season 2012. The estimates of phenotypic coefficients of variation (PCV) were high and moderate for days between flowering and maturity (10.71%), number of tillers plant (19.70%), number of panicles plant (21.44%), 100 grain weight (g) (27.01%), panicle exertion (14.75%), panicle length (cm) (12.90%), leaf width (cm) (20.96%), straw weight (g) (30.99%) and yield (g) (34.04%)in different crosses. High heritability coupled with high and moderate genetic advance was observed for all the plant traits observed. Correlation studies revealed that Grain yield plant-1 was positively and significantly correlated with number of tillers, number of panicles, grain length and straw weight. However Grain yield plant-1 was negatively significantly correlated with Days to flowering, Days to maturity, Plant Height, 100-grain weight, Grain width and Leaf width

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Author(s): Farhad Kahani and Shailaja Hittalmani

Keywords

Rice, Aerobic, Genetic variability, Heritability, Genetic advance, Rice Genome, Raw Rice, Rice Blast

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