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Character Association studies on Foliar Disease Resistance with Yield and Yield Attributing Traits in Groundnut (Arachis hypogaea L.)

Author: Girish Kumar Killada, Srividhya Akkareddy, Sreevalli Devi Muga, Arunasri Pinagari, Sree Vidya Gundrathi and Jashuva Paul Pesaleddula

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Abstract

Groundnut (Arachis hypogaea L.) is an important oil seed crop being adversely affected by two foliar fungal diseases viz., late leaf spot and rust. The objective of this study is to ascertain the association of these foliar diseases with yield and yield component traits. Phenotypic and genotypic correlations revealed significant negative association of both these diseases with major yield attributing traits like matured pods plant-1, hundred kernel weight, sound matured kernel percentage and pod yield plant-1, which results in high yield losses. Hence, it is concluded that loss of photosynthetic area due to foliar diseases made clear reduction in yield components, and development of disease tolerant varieties can mitigate the problem besides reducing cost of cultivation to farmers.

Keywords

Groundnut, Foliar fungal diseases, Late leaf spot, Rust, Correlation

Conclusion

Both the foliar fungal diseases viz., LLS and rust have adverse effects on yield and yield attributing traits like number of pod yield plant-1, matured pods plant-1, hundred kernel weight and sound matured kernel percentage (%). Hence advanced breeding lines with low disease severity scores for LLS and rust along with more number of matured pods plant-1, maximum hundred pod and kernel weights, maximum shelling and sound matured kernel percentage should be given importance while selection and further advancement as it maximizes the yielding ability of the selected lines.

References

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How to cite this article

Girish Kumar Killada, Srividhya Akkareddy, Sreevalli Devi Muga, Arunasri Pinagari, Sree Vidya Gundrathi and Jashuva Paul Pesaleddula (2023). Character Association studies on Foliar Disease Resistance with Yield and Yield Attributing Traits in Groundnut (Arachis hypogaea L.). Biological Forum – An International Journal, 15(9): 640-643.