Management of Collar Rot Disease of Groundnut under Field condition

Author: B. Teja Bhushan, M. Reddi Kumar, R. Sarada Jayalakshmi, A. Srividhya and Emani Rajeswari

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Abstract

Groundnut is a major oilseed and food crop in India and across the world. The groundnut crop is being affected by a variety of diseases. Among them collar rot is a serious pathogen that causes heavy losses in groundnut cultivation. Collar rot is a seed-borne disease that causes seed rotting and reduces germination. The current investigation concentrated mostly on collar rot management in the field. In field experiment conducted during Rabi, 2018-19, treatment T5 (seed treatment with mancozeb at half recommended dose i.e., 1.25 g kg-1 seed + potential isolate of Trichoderma spp. i.e., GT2 in Talc formulation @ 4 g kg-1 seed) showed least per cent disease incidence at 7 DAS (3.47 %), 15 DAS (2.40 %), 30 DAS (1.76 %) and maximum germination per cent (92.17 %), shoot length (34.67 cm), root length (14.06 cm), fresh weight (376.45 g), dry weight (174.44 g) and yield (2522.22 kg ha-1) among different treatments.

Keywords

Collar rot, Groundnut, mancozeb, seed treatment, Trichoderma spp., yield

Conclusion

The current research concludes that groundnut collar rot disease is complicated in nature owing to the connection of many soil-borne pathogens, and that there is a need for the combination of cultural, biological, and chemical strategies in plant disease management. Integration of bioagents and fungicides in field experiments and groundnut collar rot disease control assessment in farmer fields can be undertaken in the future.

References

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How to cite this article

B. Teja Bhushan, M. Reddi Kumar, R. Sarada Jayalakshmi, A. Srividhya and Emani Rajeswari (2022). Management of Collar Rot Disease of Groundnut under Field condition. Biological Forum – An International Journal, 14(4): 225-231.