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Department of Seed Science & Technology, S.V. Agricultural College, ANGRAU, Tirupati-517 502.
Among the viral diseases, Urdbean Leaf Crinkle Virus (ULCV) is one of the most serious disease in all urdbean growing
areas The causal agent is reported to be transmitted by seed, sap, aphid and whitefly. However, there is limited work on the development of resistant cultivars to Urdbean Leaf Crinkle Disease (ULCD) due to the non-availability of the resistant sources. Hence the present investigation was carried out at RARS, Lam, Guntur district, Andhra Pradesh during 2021-22. Screening was conducted in RARS, Lam during Rabi, 2021-22 among 25 urdbean genotypes along with LBG 623 (Suceptible check) against ULCD under field conditions using 0-5 disease rating scale revealed that one genotype was found highly resistant, 10 genotypes were resistant, 9 genotypes were moderately resistant, 3 genotypes were moderately susceptible and 3 genotypes exhibited susceptible reaction to ULCV. While none of the urdbean genotypes were found to be highly susceptible to the disease.
KEYWORDS: Urdbean, ULCV, Resistance, Screening.