Effect of Yellow mosaic virus on yield attributes of Blackgram (Vigna mungo L. Hepper)

A field experiment was conducted during Kharif 2018 at Botanical Garden of Acharya Nagarjuna University to determine the effect of Yellow mosaic virus infection on yield attributes of Blackgram (Vigna mungo L. Hepper). A total of fifty blackgram varieties were obtained from Regional Agricultural Research Station, Lam, Guntur, Andhra Pradesh. The obtained blackgram varieties were cultivated and left to infection of YMV. The data was collected on plant height, days to 50% flowering, clusters per plant, pods per plant, pod length, seeds per pod, 100 seed weight, whole plant dry weight and yield per hectare. Of all the varieties Ku-15-9, TU-18 and PGRU-99-028 found to be potent in producing clusters per plant, pods per plant, pod length, seeds per pod, 100 seed weight along with high whole plant dry weight coupled with high yield content per hectare 1685.45 q/h, 1595.00 q/h and 1280.00 q/h respectively. Based on the performance of the all the varieties, varieties Ku-15-9, TU-18 and PGRU-99-028 should be considered as resistant to yellow mosaic disease.