Tehlan, S.KYadav, Preeti2018-04-102018-04-102018http://krishikosh.egranth.ac.in/handle/1/5810043133An investigation entitled “Genetic Divergence and Stability Studies in Fenugreek (Trigonella foenum-graecum L.)” was carried out with sixty genotypes during Rabi season of 2015-16 & 2016-17 at Vegetable Research Farm, CCS Haryana Agricultural University, Hisar. The Crop was planted on six dates of sowing as the test environments. The analysis of variance of the twelve characters recorded significant genotypic differences in all the six environments. This variation was amply demonstrated by the estimates of variability parameters and close relationships between phenotypic and genotypic coefficient of variation in most of the characters studied. High heritability and high GCV were observed for seed yield, pods per plant and plant height shows additive gene action. On the basis of D2 values, genotypes were classified into eight clusters and results revealed that there was no association between clustering pattern and eco-geographical distribution of genotypes. Traits seed yield, seed vigour-II, pods per plant and seed germination contributed maximum toward the divergence. The genotypes of cluster VIII showed maximum genetic distance with cluster IV, III and II and genotypes of these clusters may be selected for hybridization for generating genetic variability. The joint regression analysis for G x E interaction exhibited significant variances due to environments and their interaction and subsequent breakup of G x E interaction indicated the importance of both linear and non-linear components. Genotype differed in performance, stability behaviour and response to change in environments, whereby no single genotype was found outstandingly stable for all the characters studied. The sixty genotypes were categorized for poor, average and better environments. The high performing and stable genotype HM-346-1, HM 444, AM 300 and AM 301 was responsive to better environment; RM 191 to the poor environment; HM 355, AM 304, NDM 67 and NDM 74 to average environment. Likewise, other promising genotypes HM 57, HM 346, NDM 61, JFg 13, HM 273 and RM 18 were also suggested to be exploited through hybridization or other breeding approaches so that production potential of fenugreek could be improved.ennullThesis