International Journal of Plant Sciences

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Management of Root Rot Disease in French Beans (Phaseolus vulgaris) by using Microbial Consortium


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1 Horticultural Research Station (T.N.A.U.), Ooty (T.N.), India
     

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Root rot disease of beans is caused by Rhizoctonia solani. Biocontrol agents were tested for their antagonistic activity against ischolar_main rot pathogen Rhizoctonia solani. Among the tested isolates, Trichoderma viride recorded the maximum (86.04 %) inhibition on the mycelial growth of pathogen followed by Pseudomonas fluorescence which recorded 79.12 per cent inhibition on the mycelial growth. Treatment with (SA+ST with P. fluorescens + T. viride) + Neem cake was recorded maximum (78.55%) disease reduction in the field condition with the yield of 2654 kg/acre. Combined application of biocontrol agents having ability to reduce ischolar_main rot disease in French bean and increase the yield siginificantly.

Keywords

Beans Root Rot, Rhizoctonia solani, Trichoderma sp., Pseudomonas sp., Biological Control.
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  • Management of Root Rot Disease in French Beans (Phaseolus vulgaris) by using Microbial Consortium

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Authors

S. Malathi
Horticultural Research Station (T.N.A.U.), Ooty (T.N.), India

Abstract


Root rot disease of beans is caused by Rhizoctonia solani. Biocontrol agents were tested for their antagonistic activity against ischolar_main rot pathogen Rhizoctonia solani. Among the tested isolates, Trichoderma viride recorded the maximum (86.04 %) inhibition on the mycelial growth of pathogen followed by Pseudomonas fluorescence which recorded 79.12 per cent inhibition on the mycelial growth. Treatment with (SA+ST with P. fluorescens + T. viride) + Neem cake was recorded maximum (78.55%) disease reduction in the field condition with the yield of 2654 kg/acre. Combined application of biocontrol agents having ability to reduce ischolar_main rot disease in French bean and increase the yield siginificantly.

Keywords


Beans Root Rot, Rhizoctonia solani, Trichoderma sp., Pseudomonas sp., Biological Control.

References