The potential of bio agents for management of dry root rot of chickpea caused by Macrophomina phaseolina (Tassi.) Goid.

Abstract

Five different bio agents viz., three isolates of Trichoderma spp., one isolates of Pseudomonas spp. and one isolate of Bacillus spp. were tested for their ability to inhibit Macrophomina phaseolina causing Dry root rot of Chickpea under in vitro conditions. Dual culture of pathogens and bio agents revealed that among the fungal bio agents, T. viride (Tv-1) was found best with 47.36% fungal mycelia inhibiton over control. Among all the bacterial bio agents tested Bacillus subtalis was found best with 30.74% fungal inhibition over control. Further, these bio agents tested against M. phaseolina were categorized on the basis of bells scale of antagonism.