Author(s):

Priyanka, Abhinav Sao and Deepak Gauraha

Abstract: An experiment was conducted to estimate the genetic variability parameters for yield and quality traits in 67 aromatic breeding line of rice. Analysis of variance showed presence of considerable variability among the aromatic lines. All the genotypes showed highly significant differences for the yield and contributing traits and quality traits. Coefficient of variation ranges from 2.39% for cooking length to 21.06% for alkali spreading value. Highest GCV value was found for gel consistency (34.88%) and high PCV value was found for cooking width (71.99%), indicating high variability for these traits. High heritability with moderate /low genetic advance as a% of mean was found for harvest index, panicle length, kernel width and day to 50% flowering are governed by non additive gene action and these characters can be used heterosis breeding programs. Higher estimates of heritability coupled with high genetic advance was found for gel consistency followed by amylose content, filled spikelet per plant, test weight, flag leaf length, plant height, grain yield per plant, kernel length, grain length and spikelet fertility %. These character are governed by additive gene action and selection will be beneficial is the present materials for these traits. High heritability with moderate /low genetic advance as a % of mean as found for harvest index, panicle length, kernel width and day to 50% flowering and governed by non additive gene action.

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