Perraju, P.Rathore, Naveen2016-07-282016-07-282014http://krishikosh.egranth.ac.in/handle/1/70119ABSTRACT The present investigation entitled “Assessment of Genetic variability in Quality rice lines of Madhya Pradesh .” was carried out with the objectives to estimate mean, range, heritability (%), genetic advance (%), correlation coefficients and path analysis agronomical and quality traits. The experimental material consisted of 60 genotypes and conducted at Experimental farm of College of Agriculture, Rewa (M.P.) Kharif 2013. Observations were recorded on the basis of five random competitive plants selected from each plot in every replication for morphological traits e.g. days to 50 % heading, plant height, panicle length, no. of panicles/plant and grain yield/plant. Grain quality traits viz., test weight, milling percentage, head rice recovery percentage, kernel length, kernel breadth, L/B ratio, kernel length after cooking, kernel breadth after cooking, elongation ratio and amylose content. The salient findings of the study and conclusion drawn as summarized below: The mean data estimated were subjected to analysis of variance as per the Randomized Block Design. Analysis of data revealed highly significant difference among genotypes for all traits. The coefficients of phenotypic and genotypic variability were comparatively high for L/B ratio, grain yield/plant, no. of panicles/plant, test weight, kernel length, kernel breadth and kernel breadth after cooking. Whereas moderate genotypic and phenotypic coefficient of variations was observed for head rice recovery, kernel length after cooking, plant height, days to 50 % heading and amylose content. High heritability accompanied with high genetic advance indicated predominance of additive gene action for the traits viz., L/B ratio followed by grain yield/plant, test weight, kernel length, kernel breadth after cooking, no. of panicles/plant, head rice recovery, kernel length after cooking, days to 50 % heading, plant height and amylose content. Selections can be effective on the basis of correlation for characters and path analysis like Days to 50 % heading, panicle length, no. of panicles/plant, test weight, kernel length and L/B ratio. These characters should be considered during selection for developing high yielding stable breeding lines. ***enThesis