Hazarika, B.N.Thungan, Sangja KhanduSingh, Vikas2018-09-202018-09-202012-03-01http://krishikosh.egranth.ac.in/handle/1/5810073878The present investigation consisting of 55 diverse genotypes of turmeric collected from various parts of country was carried out during 2010-11 at Vegetable Farm, Department of Vegetable Science, College of Horticulture and Forestry, Central Agricultural University, Pasighat, Arunachal Pradesh. The experiment was laid out in Randomized Block Design with three replications in a plot size of 3 x 1.2 m. The recommended spacing (30 cm x 15 cm) and package of practices were adapted uniformly to all the genotypes. Observations were recorded on five randomly tagged plants on each genotypes of days to 50% plant emergence, plant height, pseudo stem girth, number of tillers per plant, number of leaves per plant, leaf area, crop duration, number of mother rhizomes per plant, weight of mother rhizome per plant, average weight of mother rhizome,number o primary rhizomes per plant, weight of primary rhizome per plant, average weight of primary rhizome, number of secondary rhizomes per plant, weight of secondary rhizome per plant, average weight of secondary rhizome, rhizome yield per plant, dry recovery and curcumin content. The data collected over the genotypes and replications were analysed statistically for genotypic variance (o2g), phenotypic variance (o2p), phenotypic coefficient of variation (PCV), genotypic coefficient of variation(GCV), heritability (broad sense), genetic advance as percent of mean (GA),Correlation coefficient and path coefficient analysis.Analysis of variance revealed significant differences among the genotypes for all the characters. High phenotypic and genotypic coefficient of variation, heritability (broad sense), genetic advance as percentage of mean were observed for weight of secondary rhizome per plant, average weight of secondary rhizome, curcumin content, rhizome yield per plant, average weight of primary rhizome, weight of primary rhizome per plant, number of mother rhizomes per plant, average weight of mother rhizome, number of secondary rhizomes per plant, weight of mother rhizome per plant and number of tillers per plant. Correlation studies reveal that rhizome yield per plant showed positive and significant correlation with weight of secondary rhizome per plant, weight of primary rhizome per plant, crop duration, average weight of secondary rhizome per plant, average weight of mother rhizome and number of mother rhizomes per plant at both genotypic and phenotypic level but negative and significant association was recognized with days of 50% plant emergence, plant height and curcumin content. Maximum positive direct effect on rhizome yield per plant was exerted by weight of secondary rhizome per plant followed by weight of primary and mother rhizomes per plant at both genotypic and phenotypic level. Other characters had negligible direct effect on rhizome yield per plant. The genotypes viz., CHFT-8, CHFT-61, CHFT-22 and CHFT-30 for rhizome yield and Megha Turmiric-1, CHFT-17, CHFT -24 and CHFT -14 for curcumin content were identified promising and to be utilized for turmeric crop improvement programmes.ennullThesis