Spatial Distribution and Incidence of Dry Root Rot of Pigeonpea Caused by Rhizoctonia bataticola (Taub.) Butler and Stem Canker Caused by Macrophomina phaseolina (Tassi) Goid]

Author: G. Vamsikrishna, S.K. JayaLakshmi, D.S. Aswathanarayana, Y.S. Amaresh and S. Muniswamy

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Abstract

Pigeonpea is one of the protein rich legume crops grown in India. The production and productivity were very less due to losses caused by dry root tot and stem canker diseases from flowering to harvesting stage. The disease dry root rot caused by R. bataticola and stem canker caused by Macrophomina phaseolina is a seed borne as well as soil borne necrotic fungal pathogens infecting more than 284 plant species including monocot and dicots throughout the world. It is the most destructive disease and causes severe yield loss in major pigeonpea growing areas of North-Eastern Karnataka. Keeping this in view, a comprehensive and systematic survey was conducted by using GPS coordinates during the months of October-November 2018 in the farmer’s field at Kalaburgi, Raichur, Yadgir and Bidar districts to know the status of incidence of dry root rot and severity of stem canker disease. The obtained results revealed that mean maximum dry root rot incidence was noticed in Kalaburgi distri

Keywords

dry root rot, Macrophomina phaseolina, Pigeonpea, Rhizoctonia bataticola, stem Canker.

Conclusion

The maximum incidence of dry root rot of pigeonpea was 24.20 per cent in Kalaburgi and least was in Yadgir district to an extent 9.14 per cent during kharif 2015. The maximum severity of stem canker of pigeonpea was 29.72 per cent in Kalaburgi and least was in Raichur district to an extent 4.97 per cent during kharif 2015.

References

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How to cite this article

Vamsikrishna, G., JayaLakshmi, S.K., Aswathanarayana, D.S.,Amaresh, Y.S and Muniswamy, S. (2021). Spatial Distribution and Incidence of Dry Root Rot of Pigeonpea caused by Rhizoctonia bataticola (Taub.) Butler and Stem Canker Caused by Macrophomina phas