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

T. L. Kirkpatrick, Michael L. May

Abstract

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.

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Key concepts: Terra incognita, Cultivar, Biology, Meloidogyne incognita, Meloidogyne arenaria, Gall, Horticulture, Greenhouse