Screening of cultivated and wild germplasm of urdbean against root knot nematode, Meloidogyne javanica
DOI:
https://doi.org/10.53550/jfl.v19i1.2292Keywords:
Genotypes, Meloidogyne javanica, Root knot nematode, Resistance, Urdbean, Vigna mungoAbstract
Three hundred accessions of cultivated germplasm of urdbean were evaluated for resistance to M. javanica based on the galls/ egg masses on the roots under field conditions. Eleven genotypes showed resistant reaction and 42 genotypes gave moderately resistant reaction. These resistant and moderately resistant genotypes along with 8 wild accessions were retested under pot conditions. It was found that only one genotype PLU 648 gave resistant reaction and 9 genotypes gave moderately resistant reaction, indicating escape and random distribution of nematodes under field conditions. None of the wild accessions was resistant to root knot nematode. However, four wild accessions IPUW 99-16, IPUW 99-20, IPUW 98-13 and VKS/ SCC 9/46 were moderately resistant.
References
Dabur, K.R., Dalal, M.R. and Taya, A.S. 1998. Screening of kharif pulses against root-knot nematode (Meloidogyne javanica). Agricultural Science Digest Karnal 18: 65-66.
Gnanapragasam, N.C., Sivapalan, P. and Dharmasena, W.A.M. 1985. Screening of different cultivars of black gram (Phaseolus mungo L.), green gram (Phaseolus aureus Roxb.) and cowpea (Vigna catjang Walp.) for resistance/susceptibility to Meloidogyne species. International Nematology Network Newsletter 2: 22-25.
Handa, D.K. 1990. Reaction to urdbean cultivars and losses caused by Meloidogyne javanica. International Nematology Network Newsletter 7: 20-21.
Kalita, D.N. and Phukan, P.N. 1993. Pathogenicity of Meloidogyne incognita on black gram. Indian Journal of Nematology 23: 105-109.
