Resistance of Lathyrus Species and Accessions to the Northern Root-knot Nematode, Meloidogyne hapla
Rumbaugh, M.D.; Griffin, G.D.
Journal of Nematology 24(4s): 729-734
1992
ISSN/ISBN: 0022-300X PMID: 19283053 Document Number: 394672
Twenty-eight USDA Agricultural Research Service Plant Introduction accessions representing 16 Lathyrus species were examined for their ability to tolerate attack by Meloidogyne hapla. There were differences in the percentage of root tissue galled and in the nematode reproductive index among species and among accessions within species. Root biomass of infected plants was significantly less than that of uninfected plants of the same accession. Accessions of L. ochrus and L. tingitanus were susceptible to M. hapla, whereas L. latifolius, L. sylvestris and L. hirsutus were resistant. The variation among Lathyrus spp. in root galling and reproductive indices of M. hapla warrant the inclusion of these traits in Lathyrus breeding programmes.