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Birsa Agricultural University, Ranchi

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Subject: Plant Breeding × Author: Anil kumar Vishwakarma × End date: 1999 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Varibility and correlatoin studies in blackgram
    (Birsa Agricultural University, Ranchi, 1993) Anil kumar Vishwakarma; C. M. Sharma
    The variability and correlation studies were in a collection of sixteen genotypes of blackgram made (Viona-mungo L.. Hepper) of diverse origin for fifteen quantitative characters under late sown condition in plateau region of chotanagpur . The analysis of variance indicated highly significant difference among the sixteen entries for the characters days to 50% flowering, days to maturity. Primary branches per plant, plant height, plant spread, pods per bunch, seeds per pod, seed yield per plot and biological yield per plot. A wide range of phenotypic variability was observed for the characters plant height, plant spread, pods per plant, seed yield per plot and biological yield per plot. The rest of the characters expressed very narrow range of variability. Phenotypic and genotypic coefficient of variation were high for the characters plant height, plant spread, seed yield per plot and biological yield per plot. The estimates of heritability in broad sense were highest for the character plant height followed by plant spread, biological yield per plot, days to maturity and days to 50% flowering. The character pod length expressed lowest estimate of heritability. The genetic advance expressed as of mean was maximum for the character pods the per lowest percentage bunch, followed by primary branches per plant and the value was obtained by biological yield per plot followed by seed yield per plot and harvest index. The study of genotypic and phenotypic correlation indicated higher genotypic correlation than, phenotypic the correlation for most of the characters and they were of comparable magnitude. Seed yield per plant indicated positive branches and per highly significant association plant pods per plant, days with primary 50% to flowering plant spread and pod per bunch both at phenotypic and genotypic level which is probably due to association highly the inherent between them. Pods per plant had positive significant plant, primary character seeds association branches association per with plant and seed plant yield spread. per pod had positive and highly significant with biological yield per plot, seed yield per plot and primary branches per plant at phenotypic level. This indicated that the characters per plant, pods per plant and pods per bunch significantly in bringing yield like would improvement in branches contribute black gram.