Genetic Divergence and Path Analysis in Fenugreek (Trigonella foenum-graecum L.)

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dc.contributor.advisorMaloo, S. R.
dc.contributor.authorSwami, Anil
dc.date.accessioned2017-09-27T11:14:58Z
dc.date.available2017-09-27T11:14:58Z
dc.date.issued2007
dc.descriptionGenetic Divergence and Path Analysis in Fenugreek (Trigonella foenum-graecum L.)en_US
dc.description.abstractThe present study entitled as “Genetic Divergence and Path Analysis in fenugreek (Trigonella foenum-graecum L.)” was carried out with 20 diverse genotypes/strains of fenugreek collected from different sources. The material were planted during two crop seasons viz. rabi, 2007-08 and 2008-09 at Instructional Farm of Rajasthan College of Agriculture, Udaipur. The experiment was conducted in Randomized Block Design with three replications following uniform and recommended agronomic practices. Observations were recorded for 11 yield contributing characters and seed protein content in each year. Variability parameters, correlation were computed for each year while path analysis was estimated for seed yield per plant as well as seed protein content for each year. Genetic divergence was computed for seed yield per plant over pooled basis using Mahalanobis (1936) D2 statistics and protein profile were distinguished through SDS-PAGE by Davis (1964). Analysis of variance showed presence of sufficient variability among the genotypes. Superior varieties/strains viz. NS 2006-3, UM-134, UM-353 and NS 2006- 1 were identified on the basis of their high per se and consistent performance for seed yield and most of their component characters. Varieties/strains NS 2006-3 displayed superiority for seed yield as well as seed protein content. Plant height, pods per plant and pod length turned out to be the most important contributing traits for enhancing yield level in fenugreek. High GG along with high estimates of heritability and GCV for seed protein content and biological yield per plant. While, moderate GG and GCV with high heritability for pods per plant, seed yield per plant and plant height suggested for these traits would be effective for genetic improvement of seed yield in fenugreek. Association studied revealed that seed yield per plant showed positive correlated with plant height, branches per plant, biological per plant and harvest index at genotypic and phenotypic level in at least one year and over pooled basis. Most of these characters were mutually correlated. Path analysis studied for seed yield revealed direct and indirect contribution of plant height, pods per plant, biological yield per plant, seeds per pod and pod length while for seed protein content it revealed direct as well as indirect contribution of seed yield per plant, harvest index and seeds per pod. These characters showed strong association with seed yield and seed protein content On the basis of divergence studied, it was concluded that there was no relationship between genetic and geographic diversity. These 20 varieties/strains were grouped into 9 clusters. Maximum inter-cluster distance was between cluster VI and IX and genotypes of these clusters with high per se performance could be utilized in breeding programmes. Character contributing maximum to seed yield were branches per plant, 100-seed weight and harvest index. Genetically diverse and high yielding varieties/strains of fenugreek like RMt-1, RMt-305, NS 2006-3, UM-134 and UM- 353 could be used for breeding programme so as to ameliorate the productivity and quality of fenugreek. In protein profiling the dendrogram is used for cluster analysis based on UPGMA method. These 20 varieties/strains were grouped into 3 clusters. The distance coefficients generated between the 20 fenugreek genotypes ranged from 0.00 to 4.29. Maximum distance was recorded between G1 (NS 2006-1) and G4 (NS 2006-4) genotypes of these stages with high genetic divergent as well as per se performance could be utilized in future breeding programme.en_US
dc.identifier.citationSwami and Maloo, 2007en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810031882
dc.keywordsGenetic, Divergence, Path Analysis, Trigonella foenum-graecumen_US
dc.language.isoenen_US
dc.pages84en_US
dc.publisherMPUAT, Udaipuren_US
dc.research.problemGenetic Divergence and Path Analysis in Fenugreek (Trigonella foenum-graecum L.)en_US
dc.subPlant Breedingen_US
dc.subjectnullen_US
dc.themeGenetic Divergence and Path Analysis in Fenugreek (Trigonella foenum-graecum L.)en_US
dc.these.typeM.Scen_US
dc.titleGenetic Divergence and Path Analysis in Fenugreek (Trigonella foenum-graecum L.)en_US
dc.typeThesisen_US
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