Character Association and Path coefficient Analysis for Yield and Yield Components in Linseed (Linum usitatissimum L.)

Author: Choudhary S.K., Nirala R.B.P., Anand S. and Kumar A.

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Abstract

Demand for linseed is increases day by day, globally due to its health benefits and industrial uses. Although, the availability of high yielding cultivars of linseed is limited. So, the present study has been conducted to determine genetic variability, heritability and character association among 47 linseed genotypes using eleven agro-morphological traits for yield and yield component. It was carried out at Agricultural Farm of BAU, Sabour, Bhagalpur (Bihar) during the Rabi 2019-20. The experimental material was evaluated in RBD design with three replications. Analysis of variance indicated that the presence of sufficient amount of variability among the genotypes for all the characters studied. High to moderate values of PCV and GCV were obtained for traits plant height, bud fly infestation, number of primary branches per plant, number of capsules per plant, 1000-seed weight and seed yield per plant. High heritability along with high to moderate genetic advance has been estimated for plant height, bud fly infestation, number of primary branches per plant, number of capsules per plant, 1000 seed weight and seed yield per plant. Thus, plant height and the number of capsules per plant are suitable for direct selection of the genotypes. Correlation study showed the significant and positive correlation of seed yield with flower diameter, number of primary branches per plant, number of capsules per plant, number of seeds per capsule and 1000-seed weight, whereas, days to 50% flowering, days to 50% maturity, plant height and bud fly infestation were found to be significant and negative correlation with seed yield per plant Path coefficient analysis indicated that the number of capsules per plant and flower diameter exhibited high and medium positive direct effect on seed yield, respectively. Hence, flower diameter, number of capsules per plant and bud fly resistance would be utilised for improvement of linseed cultivars.

Keywords

Linseed, Correlation, Path coefficient, Variability, Heritability, Genetic Advance

Conclusion

The current study found adequate genetic variability within and among genotypes, indicating the possibility of further genetic enhancement in linseed.Plant height and the number of capsules per plant are two traits with high heritability and genetic advance that are suitable for selection as they have direct positive effects at phenotypic and genotypic level. Furthermore, According to a study that used correlation and path coefficients, the number of capsules per plant showed a significant direct correlation with seed yield. As a result, this trait may be prioritised in the improvement programme to genetic yield potential in linseed. As a result, improve genetic variability can be successfully used to develop new linseed cultivars.

References

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How to cite this article

Choudhary S.K., Nirala R.B.P., Anand S. and Kumar A. (2023). Character Association and Path coefficient Analysis for Yield and Yield Components in Linseed (Linum usitatissimum L.). Biological Forum – An International Journal, 15(3): 40-44.