author(s)
Sahaja Deva, GMV Prasada Rao, Ch. Varaprasada Rao and P Vinayalakshmi

abstract
Yellow Mosaic Virus is the major problem in pulses in prakasam district which leads to major yield reduction. A new variety of black gram tolerant to yellow mosaic virus was introduced and demonstrated in the Prakasam district. Krishi Vigyan Kendra, Darsi, assessed the performance of yellow mosaic virus resistant variety TBG 104 over yellow mosaic virus susceptible variety LBG 752 in cluster Front Line Demonstrations s in 25 acres each from 2016-17 to 2018-19. TBG 104 have shown advantage over LBG 752 in terms of yield and C: B ratio. Average yield of TBG 104 was 11.9 q ha^-1 with C: B ratio of 1:1.7. Whereas, LBG 752 recorded yield of 11.0 q ha^-1 with C: B ratio of 1:1.4.