Abstract
Disease suppressive role of the antagonistic microorganisms, Trichoderma harzianum, Trichoderma virens and VAM fungus against rhizome rot of turmeric ( Curcuma longa L.) caused by Fusarium solani was established in both pot culture and field studies. VAM treated plants in the infested soil showed reduced disease incidence as compared to F. solani alone treated plants. Trichoderma and Gliocladium treatment resulted in less disease incidence as compared to VAM treated plants. Among the three-biocontrol agents tested, T. harzianum was found to be the most effective in disease control as compared to others. Plants treated with biocontrol agents were healthy with enhanced biomass and also yield to varied extents.
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