Resistance to Okra yellow vein mosaic virus in Maharastra

An experiment was carried out to identify the source of resistance to okra yellow vein mosaic virus in Maharashtra. The results of four season screening revealed that the wild species A. angulosus was found completely free from yellow vein mosaic virus symptoms. The wild A. tetraphyllus lines (1, 2, 3 and 4), A. moschatus lines (1, 2, 3, 4 and 5), A. caillei-2 and A. manihot spp. tetraphyllus were found highly resistant while the wild lines A. tetraphyllus-5, A. manthot (L.) Medikus and A. manihot spp. rnanihot were found to be resistant whereas A. tuberculatus lines (1, 2 and 3), A. ficulneus lines (1 and 2) and A. caillei-1 were found moderately susceptible to YVMV. Among the cultivated A. esculentus types, none was found resistant to YVMV. However, the cultivars Varsha Uphar, Phule Utkarsha and HRB 107-1 were found moderately resistant to the virus. In general, the incidence to YVMV in wild and cultivated lines of okra was observed more in summer as compared to kharif season at hot spots in western Maharashtra.