SCREENING OF BLACKGRAM GENOTYPES AGAINST MUNGBEAN YELLOW MOSAIC VIRUS (MYMV) DISEASE

Blackgram is an important kharif pulse crop in Karnataka and popularization of its cultivation during summer in command areas is very crucial for horizontal expansion of the crop for increasing production. For popularizing blackgram cultivation during summer after harvesting paddy, pigeonpea and Bt cotton in command areas, the blackgram varieties need to possess resistance to MYMV disease, which is rampant during summer. Therefore, it necessitates the identification/development of blackgram varieties resistant to MYMV and suitable for summer season. Therefore, study was undertaken with an objective to identify urdbean genotypes resistant against MYMV based on the phenotypic reaction. The screening of 100 blackgram genotypes for Mungbean Yellow Mosaic Virus (MYMV) disease under natural epiphytotic condition during summer-2018 season revealed that 33 genotypes were resistant to MYMV disease. The genotype TRCRU-22 recorded minimum per cent disease incidence (1.70) whereas, susceptible genotype, TAU-1 (67.01) recorded maximum per cent disease incidence.