Thirty-eight urdbean [Vigna mungo] genotypes were screened for resistance to mungbean yellow mosaic virus during the kharif of 1997-2000 and in the summer of 1998-99. The disease occurrence was recorded at 15-day intervals until harvest. Among the genotypes, KU 96 and TU 98-14 were free from the disease; 11 were resistant (KU 96-1, UG 774, UG 737, UPU 97-10, KU 315, NP 6, PLU 96-8, PLU 44, PLU 131, PLU 463 and KU 96-8); and 9 were moderately resistant. UPU 97-10 and UG 774 recorded the highest plant heights, 81 and 74.6 cm height, respectively. UPU 97-10 had the highest yield (1066 kg/ha), which may be attributed to better pods and seeds per plant. The 100-seed weight was similar in genotypes KU 96, UG 774, UG 737 and NP 6, while the 100-seed weight in TU 98-14 contributed to positive yield attributes and yield. The variation in disease severity among the genotypes was clearly associated with the number of pods per plant and yield per 2 rows.
v.56(1):110-111, INDIAN PHYTOPATHOLOGY