Induction and evaluation of benomyl-tolerant mutants of Trichoderma viridefor biological control of Botrytis grey mould of chickpea
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Authors
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P.K. MUKHERJEE1, M.P. HAWARE2 and K. RAGHU1
1NuclearAgriculture Division, Bhabha Atomic Research Centre, Mumbai 400 085
2Crop Protection Division, International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), Patancheru 502 324
Keywords:
Botrytis cinerea. Trichoderma. chickpea, biocontrol, benomyl, fungicide toleranceAbstract
Benomyl-tolerance is absent in the natural population of Trichoderma spp. used in the biocontrol of plant pathogenic fungi. Stable benomyl-tolerant mutants of Trichoderma viride isolate T-15 were obtained for the integrated biocontrol of Botrytis grey mould of chickpea caused by B. cinerea. Some of the mutants are hyper-producers of antifungal substances in culture filtrates, and are equally effective as the wild type strain in their disease control potential. The usefulness of these mutants in a biocontrol programme is discussed.
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