Mycoflora associated with grain discolouration of common rice (Oryza sativa L.) cultivars and their management

Six fungal species Alternaria alternata, Dreschelera oryzae, Curvularia oryzae, Fusarium moniliforme, Cercospora oryzae and Helminthosporium oryzae has been found associated with discoloured panicles of different varieties in the field. Helminthosporium oryzae and Alternaria alternata were the predominant species on all the varities. Similarly among the twelve treatment including control, Nativo and Kumulus outclassed all the chemicals in reducing discoloured panicle by 49.59% and 51.34% respectively as compared to control 67.40%.and hence improveing the paddy yield. Kumulus was the best treatment in reducing grain infection.