Host Suitability of Soybean Cultivars for Meloidogyne incognita and M. arenaria

  • T. L. Kirkpatrick
  • M. L. May


The suitability of five maturity group (MG) III and five MG IV soybean, Glycine max, cultivars as hosts for Meloidogyne incognita and M. arenaria was evaluated in a greenhouse. 'Forrest', a MG V cultivar, was used as the standard of comparison for M. incognita resistance. With M. incognita, root-gall and egg-mass indices and reproductive factors for 'Asgrow 3307', 'FFR 398', and 'Pioneer 9442' were comparable with those found on Forrest. Meloidogyne arenaria reproduction was lower (P = 0.05) on 'Stevens' than on the other cultivars studied except 'TN4-86'. When grown in a field infested with M. incognita, the relative ranking of the cultivars was similar to the greenhouse results. Key words: Glycine max, host suitability, Meloidogyne arenaria, Meloidogyne incognita, root-knot nematode, soybean.