Abstract
Screening of thirty two test lines of mu ngbean against yellow mosaic virus (MBYMV) and urdbean leaf crinkle virus (UBLCV) diseases revealed that only three cultivars i.e. S 118, S 132 and S 136 were moderately resistant to IsABYIVIV while the rest of the cultivars were moderately susceptible to highly susceptible. In screening studies against UBLCV disease two cultivars viz. S 332 and S 539 were found tobe highly resistant, eight resistant, thirteen moderately resistant and seven moderately susceptible, cultivar S 433 being susceptible and cultivar S 275 highly susceptible.
