Identification of resistant source against yellow mosaic disease in mungbean through field screening

Yellow mosaic disease, a begomovirus, poses a significant obstacle to the successful and profitable growth of mungbeans, resulting in substantial losses in production and productivity in India. Host plant resistance is the most effective alternative for managing YMV in mungbean, offering an economical and eco-friendly methodof disease management. To identify sources of genetic resistance to YMV disease, 34 mungbean genotypes were tested through field screening at the Regional Agricultural Research Station, Warangal, Telangana, during 2023. Among 34mungbean genotypes, four genotypes, LGG610, LGG628, IPM2-14, and MGG 573 showed disease-free status, six genotypes showed a resistant reaction to YMV, namely ‘PUSA23-111, PUSA 9072, MGG-385, MGG-576, and WGG-42 with low disease score. Eight genotypes were moderately resistant, whereasten genotypes were recorded as moderately susceptible. Seven genotypes, i.e., OBGG103, PUSA23-112, RM03-79, VGG 20-234, MGG-562, MGG-563, MGG-666, were Susceptible, and the WGG-2 is highly susceptible under field conditions. These lines can also be further exploited as a source of resistance in the breeding program to develop varieties resistant to the Yellow Mosaic disease.