A. M., PATELDHRUV KANTILAL, PATEL2024-07-312024-07-312020-11-09https://krishikosh.egranth.ac.in/handle/1/5810212640The present investigation entitled “Variability, correlation and path analysis in fenugreek [(Trigonella foenum-graecum (L.)]” was carried out by using forty diverse genotypes of fenugreek obtained from seed spices research station, SDAU, Jagudan and evaluated in randomized block design (RBD) with four replications at Agronomy instruction farm, Sardarkrushinagar Dantiwada Agricultural University, Dantiwada during rabi 2019-20. The experimental material was evaluated for ten characters viz., plant height (cm), days to flowering, days to maturity, number of branches per plant, number of pods per plant, pod length (cm), number of seeds per pod, test weight (g), seed yield per plant (g) and harvest index (%). The analyses of variance revealed that mean sum of squares due to genotypes were found highly significant for all the traits. This proved the existence of tremendous variability in the experimental material for different traits. However, for seed yield point of view, JFg 196, GM 2, NDM 82 and JFg 184 were elite genotypes based on per se performance. The genotypes JFg 13, NDM 82, UM 126 and JFg 196 were showed their high per se performance in number of seeds per pod. The genotype JFG 184, JFg 77, JFg 194 and AFG 7 had maximum number of branches per plant. The genotype Kasuri methi, NDM 79, GM 2 and PM 1 had superior in the number of pods per plant. Thus, the selection of this type of genotypes may be helpful for increasing in the seed yield per plant. The close association between phenotypic and genotypic variances in all the traits indicated less influence of environment on expression of these characters. The high values of genotypic and phenotypic coefficient of variation were observed for number of branches per plant, number of pods per plant, seed yield per plant and harvest index. High heritability coupled with high genetic advance as percent of Abstract II mean was observed in number of branches per plant, number of pods per plant, pod length, number of seeds per pod, test weight, seed yield per plant and harvest index which indicates high heritability is due to additive gene action and selection may be effective. The analysis of correlation coefficients suggested that the magnitude of genotypic correlation was higher than the corresponding phenotypic correlation for all the traits. Correlation studies revealed that seed yield per plant had positive and highly significant association with number of pods per plant, pod length, number of seed per pod, test weight and harvest index in both genotypic and phenotypic levels. Hence, these characters should be given due consideration while selecting for increasing the seed yield. On the other hand, plant height, days to flowering and days to maturity exhibited negative association with seed yield per plant at both genotypic and phenotypic level. Number of pods per plant had positive correlation with number of seeds per pod which is desirable for increase in seed yield per plant. So, in future breeding programme for developing genotype having better seed yield per plant, above traits keep in considered at the time of selection. Path analysis revealed that the number of branches per plant, number of pods per plant, number of seeds per pod, days to maturity, test weight and harvest index had positive direct effects towards seed yield per plant. Plant height, days to flowering and pod length had negative direct effects towards seed yield per plant. On the basis of D2 values, forty genotypes of various geographical origins were grouped into four clusters. The traits number of branches per plant, days to flowering and number of pods per plant contributed maximum towards the divergence. The genotype of cluster III showed maximum divergence with cluster IV and II. Thus, the genotypes of this cluster may be selected for hybridization for generating genetic variability. Cluster III seems to be most promising for agronomic traits followed by cluster II and I. Thus, selection and use of these genotypes will be beneficial to generate genetic variability. From the results obtained, it would be reasonable to suggest that a breeder engaged in the improvements of fenugreek seed yield per plant should place emphasis on number of branches per plant, number of pods per plant, pod length and number of seeds per pod. Selection for these traits will be directly helpful in increasing the seed yield.EnglishThesis