GENETIC EVALUATION OF GARDEN PEA GENOTYPES

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dc.contributor.advisorTHAKUR, B S
dc.contributor.authorTHAKUR, ALISHA
dc.date.accessioned2020-11-10T06:24:20Z
dc.date.available2020-11-10T06:24:20Z
dc.date.issued2020-11
dc.description.abstractABSTRACT The present investigations entitled “Genetic Evaluation of Garden Pea Genotypes” was conducted at the Regional Horticultural Research and Training Station, Bajaura, Kullu (H.P.) during Rabi season of 2018-19 and 2019-20 to evaluate the germplasm, assess the nature of variability in the germplasm, to study correlation among various traits and to evaluate the direct and indirect effect of these traits on yield for effective selection and to study the genetic diversity present in the germplasm. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. Thirty genotypes along with one check variety i.e. Pb-89 were evaluated for testing the performance of each genotype for yield and other important horticultural traits. Significant differences among the genotypes were observed based on the analysis of variance. A wide range of variability was recorded for all the characters. Genotypes, Palam Priya, BAJ-PEA-11, Pb-89, BAJ-PEA-9, Green Pearl, Azad P-1, BAJ-PEA-8 and Lincoln were found superior over the other genotypes for yield and other horticultural traits. Wide genetic variability and high heritability coupled with high genetic gain was observed for green pod yield per plant, seed yield per plant, plant height and number of pods per plant. Correlation analysis unveiled that green pod yield per plant was positively and significantly correlated with pod weight, number of pods per plant, number of pods per axil, shelling percentage, seed yield per plant, 100- seed weight, number of seeds per pod, plant height, pod length, node number bearing first flower and pod width at both genotypic and phenotypic levels. Based on the path analysis, maximum positive direct effect of number of seeds per pod was observed on green pod yield per plant followed by pod weight, plant height, number of pods per plant, days to marketable maturity, days to fifty per cent flowering, seed yield per plant, shelling percentage and pod width. This indicated that selection must be done for these characters for obtaining superior genotypes. The genetic divergence analysis revealed considerable genetic diversity in thirty- one genotypes. Mahalanobis D2 analysis divided the thirty-one genotypes into seven clusters with maximum genotypes in cluster II. Cluster IV and VII were found to be more divergent with superior mean for almost all the traits, thus hybridization between the genotypes of these clusters will produce superior transgressive segregants with improved horticultural traits.en_US
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810154822
dc.keywordsEvaluation, Garden Pea,Genotypes, genetic diversityen_US
dc.language.isoEnglishen_US
dc.pages84+iven_US
dc.publisherNAUNI,UHFen_US
dc.subVegetable Scienceen_US
dc.themeEvaluation, Garden Pea,Genotypes, genetic diversityen_US
dc.these.typeM.Scen_US
dc.titleGENETIC EVALUATION OF GARDEN PEA GENOTYPESen_US
dc.typeThesisen_US
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