Indexing

Correlation coefficients among Yield Attributing Traits and Disease Assessment Parameters for Rust in French bean (Phaseolus vulgaris L.)

Author: G. Indraja, T.S. Aghora, M. Arivalagan, S. Sriram, P. Nandeesha and Syed Sdarunnisa

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Abstract

The French bean is a popular leguminous vegetable grown for its green tender pods as well as dry beans. However, the successful cultivation of this crop is hampered by various biotic stresses. Rust induced by Uromyces phaseoli is one among them, and it causes yield losses ranging from 18 to 78% and disease is more severe during the Rabi season. Several fungicides are used to control rust fungus, but their continued use raises ecotoxicological concerns. The correlation measures the relationship between various plant traits and disease assessment parameters and determines the component characters on which selection can be based for improvement of varieties. Correlation studies in French bean aid in determining the relationship between yield enhancing characteristics and disease evaluation factors. In this study, all disease incidence parameters were positively correlated among themselves and inversely correlated with yield per plant.

Keywords

French bean, rust, rabi and correlation

Conclusion

The present study can be concluded that disease incidence parameters were correlated positively among themselves. Yield and yield attributing traits were negatively correlated with disease incidence parameters. However, there was a substantial negative association between yield per plant and the Percent Disease Index (PDI) at the end of the season and the rate of infection during pod formation to pod development. Furthermore, a vast number of French bean varieties/lines must be tested for rust.

References

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How to cite this article

G. Indraja, T.S. Aghora, M. Arivalagan, S. Sriram, P. Nandeesha and Syed Sdarunnisa (2023). Correlation coefficients Among Yield Attributing Traits and Disease Assessment Parameters for Rust in French bean (Phaseolus vulgaris L.). Biological Forum – An International Journal, 15(10): 25-28.