Identification of Mungbean Genotypes with Multiple Disease Resistance

Abstract Mungbean is a high-protein legume and is widely cultivated in a variety of cropping systems. Foliar diseases like powdery mildew, anthracnose and mungbean yellow mosaic virus (MYMV) not only limit the productivity but also affect the physical quality of seeds rendering them unusable. In this study 130 advanced breeding lines were subjected to field screening to identify genotypes with multiple disease resistance.Field screening was conducted using infector row method to identify the resistant genotypes. Screening for powdery mildew and anthracnose was done during kharif 2021 and for MYMV during summer 2022. During each season, two trials were laid, each under protected and unprotected conditions. The genotypes were screened under unprotected conditions and the yield differences between these two trials were used to determine the per cent yield reduction due to the disease.Of the 130 advanced breeding lines screened for foliar diseases, Vigna trilobata was found to show multiple disease resistance. The advanced breeding lines such as DGG-227, V-02-709, DGG-96, DGG-21 showed resistant reaction for anthracnose. GPM-19 was the only genotype which was found to be resistant to powdery mildew. During summer 2022, 18 genotypes showed resistant reaction towards MYMV.