International Journal of Plant Protection

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Effect of Soil Edaphic Factors on Rhizoctonia solani Mediated Diseases in Major Vegetable Brassica Growing Districts of West Bengal


Affiliations
1 Department of Plant Pathology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W.B.), India
     

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Gangetic alluvial region is the most fertile part of West Bengal where majority of farmers' livelihood is commercial vegetable production. Vegetable brassica such as cabbage, cauliflower and radish occupies 18 per cent of total vegetable cultivation in West Bengal and mainly cultivated in Nadia, Mursidabad, Purulia, North 24 praganas and South 24 praganas districts. Damping off, wire stem and ischolar_main rot are the major diseases caused by Rhizoctonia solani in these districts. Different soil edaphic factors like soil temperature, soil pH, available carbon, available nitrogen etc. play a major role in survival and spread of Rhizoctonia solani and hence, this study was undertaken. The survey reveals that among different soil edaphic properties; soil pH, organic C and available N (kg/ha) are the important determinants of disease conduciveness and suppressiveness. Soil pH is the most important determining factor for disease development. The disease incidence is negatively correlated with the pH.

Keywords

Vegetable Brassica, Rhizoctonia solani, Wire Stem, Soil pH, Available Carbon.
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  • Effect of Soil Edaphic Factors on Rhizoctonia solani Mediated Diseases in Major Vegetable Brassica Growing Districts of West Bengal

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Authors

Licon Kumar Acharya
Department of Plant Pathology, Bidhan Chandra Krishi Viswavidyalaya, Mohanpur, Nadia (W.B.), India

Abstract


Gangetic alluvial region is the most fertile part of West Bengal where majority of farmers' livelihood is commercial vegetable production. Vegetable brassica such as cabbage, cauliflower and radish occupies 18 per cent of total vegetable cultivation in West Bengal and mainly cultivated in Nadia, Mursidabad, Purulia, North 24 praganas and South 24 praganas districts. Damping off, wire stem and ischolar_main rot are the major diseases caused by Rhizoctonia solani in these districts. Different soil edaphic factors like soil temperature, soil pH, available carbon, available nitrogen etc. play a major role in survival and spread of Rhizoctonia solani and hence, this study was undertaken. The survey reveals that among different soil edaphic properties; soil pH, organic C and available N (kg/ha) are the important determinants of disease conduciveness and suppressiveness. Soil pH is the most important determining factor for disease development. The disease incidence is negatively correlated with the pH.

Keywords


Vegetable Brassica, Rhizoctonia solani, Wire Stem, Soil pH, Available Carbon.

References