Studies on genetic variability for physiomorphological and seed vigour parameters in wheat (Triticum aestivum L.Em.Thell.)

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dc.contributor.advisorVikram Singh
dc.contributor.authorKavita Rani
dc.date.accessioned2016-09-21T11:51:32Z
dc.date.available2016-09-21T11:51:32Z
dc.date.issued2014
dc.description.abstractThe present investigation “ Studies on genetic variability for physio-morphological and seed vigour parameters in wheat (Triticum aestivum L. Em. Thell.) was conducted to evaluate 40 genotypes to determined the magnitude of variability for various morphological and seed vigour parameters in wheat as well as to study the character association and genetic divergence. Analysis of variance revealed considerable amount of variability among genotypes for most of the characters under study. Plant drooping height, number of tillers per meter, flag leaf area, seed density and harvest index exhibited high GCV. The differences between GCV and PCV values were minimum which show least influence of environment. Heritability estimates were high for all the characters except grain breadth and germination per cent. Plant drooping height, number of tillers per meter, flag leaf area, harvest index, flag leaf length and seed density exhibited high genetic advance as per cent of mean alongwith high heritability estimates. The grain yield showed significant and positive correlation with number of tillers per meter, flag leaf length, flag leaf area, harvest index, grain weight per spike, 1000 grain weight and grain growth rate at 28 days. Thousands grain weight, harvest index and flag leaf area had positive direct effect on grain yield. So, direct selection for these traits will be effective to increase the grain yield. On the basis of relative magnitude of distances, 40 genotypes were grouped into 6 clusters, which indicated the presence of considerable amount of genetic diversity among the genotypes studied. Cluster V showed maximum genetic divergence with cluster IV and also having higher mean values for important yield traits and thus hydbridization involving genotypes of cluster V with genotypes of cluster IV is advocated in order to achieve high yielding segregants.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/77975
dc.language.isoenen_US
dc.publisherCCSHAUen_US
dc.subGenetics and Plant Breeding
dc.subjectPysio-morphological, Seed vigour parameters, Heritability, Genetic advance, Correlation, PCV, GCV, Genetic divergenceen_US
dc.these.typeM.Sc
dc.titleStudies on genetic variability for physiomorphological and seed vigour parameters in wheat (Triticum aestivum L.Em.Thell.)en_US
dc.typeThesisen_US
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