Genetic variability, heritability and character association among linseed genotypes for yield and yield attributing traits
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Authors
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S K CHOUDHARY
Departmentof Plant Breeding and Genetics, Bihar Agricultural, University, Bhagalpur-813210, Bihar
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RAM BALAK PRASAD NIRALA
Departmentof Plant Breeding and Genetics, Bihar Agricultural, University, Bhagalpur-813210, Bihar
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RAMANUJ VISHAWAKARMA
Departmentof Plant Breeding and Genetics, Bihar Agricultural, University, Bhagalpur-813210, Biha
Keywords:
Correlation, Heritability, Linseed, VariabilityAbstract
The present investigation has been conducted to determine genetic variability, heritability, and character association among 38 linseed genotypes for yield and thirteen morphological traits at Bihar Agricultural College Sabour Farm of Bihar Agricultural University Sabour, Bhagalpur (Bihar) during the rabi 2020-21. Thirty-eight genotypes including four checks, namely, Sabour Tisi-1, Sabour Tisi-2, Shekhar and T-397 were evaluated inRBD design with three replications. Analysis of variance for fourteen characters indicated that there was a sufficient amount of variability among the genotypes for all the characters studied. The characters, namely, flowering period, plant height, bud fly infestation, bud blight infestation, number of primary branches per plant, number of capsules per plant, number of seeds per capsule, 1000-seed weight and seed yield per plant exhibited high GCV, PCV and high heritability alongwith high genetic advance. A correlation study showed a significant and positive correlation between seed yield per plant and flowering period, flower diameter, number of primary branches per plant, number of capsules per plant, number of seeds per capsule, seed length and 1000-seed weight, whereas, days to 50% flowering, days to 50% maturity, plant height and bud fly infestation were found to be a significant and negative correlation with seed yield per plant. However oil content had a non-significant correlation with seed yield per plant but in the positive direction. Path coefficient analysis indicated that the number of capsules per plant exhibited high and positive direct effect on seed yield per plant, while, bud fly infestation showed a moderate and negative direct effect on seed yield per plant.
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