Seed Mycoflora of Cluster bean and Control by Seed Treatment

Six fungi detected in the seed samples of ten location and eight fungi in seventeen cultivars of clusterbean. Aspergillus sp. and Alternaria cyamopsidis were most frequently associated with cluster bean seeds. Memnoniella echinata, Curvularia lunata, Rhizopus oryzae, Chaetomium sp., Penicillium vinaceum, Strachybotrys sp. and non-sporulating unidentify fungi were less frequently detected. Out of various mycoflora isolated from seeds, Alternaria cyamopsidis was found pathogenic to clusterbean producing greyish to dark brown, circular leaf spot. Out of six fungicides tested, thiram was found effective in reducing mycoflora and increasing the seed germination and minimise the pre and post-emergence mortality.