Association and Path Analysis of Morpho-agronomic Traits in Mungbean Germplasm Under Cold Stress

Author: Sasmita Dash, Devraj Lenka, Swapan Kumar Tripathy and Manasi Dash

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Abstract

Low temperature in the early growing season greatly affects mungbean cultivation and results a significant reduction in relative growth rate and seed yield. Therefore, an experiment comprised of 230 mungbean germplasm lines tested over two locations was aimed to assess inter-relationship of agronomic traits including seed yield in winter season. Seed yield per plant was strongly and positively associated with plant height, pod number per plant, pod length, seed number per pod and 100-seed weight. However, path analysis revealed that pod number per plant is the most desirable contributing trait next to seed number per pod and 100-seed weight towards seed yield. Hence, for genetic improvement in the seed yield, direct selection of genotypes based on component traits exhibiting positive correlation and higher positive direct effect will be more effective and fruitful in mungbean under cold stress in the winter season.

Keywords

Character association, path analysis, seed yield, yield related traits, cold stress, mungbean.

Conclusion

The present findings would be helpful for formulation of selection strategy for identification of parent materials in a set of germplasm lines as well as selection of elite plant types in mungbean breeding programme under cold stress.

References

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How to cite this article

Dash, S., Lenka, D., Tripathy, S.K. and Dash, M. (2021). Association and Path Analysis of Morpho-agronomic Traits in Mungbean Germplasm Under Cold Stress. Biological Forum – An International Journal, 13(3): 245-248.