Screening of Mungbean Genotypes and its wild Relatives for Resistant sources to Cercospora leaf Spot Disease

Mungbean [Vigna radiata (l.) Wilczek], commonly called as greengram is a major source of protein for poor people. In the present investigation 169 genotypes of mungbean were sown in 13 x 13 simple lattice design with two replications during rabi 2004 under field condition. Disease incidence of Cercospora leaf spot (CLS) was scored on 0-5 scale as developed by Singh (2001). Only wild species, Vigna aconitifolia, V. glabrascence, V. sublobata V. umbellata and a muatant PBM were free from CLS infection were grouped as immune. Five genotypes which registered field resistance to CLS should further subjected to glass house screening and then could be used as resistant sources for introgression of CLS resistant genes into present day susceptible cultivars through hybridization programme.