|Walker, John - UNIV. OF GEORGIA|
Submitted to: ASA-CSSA-SSSA Annual Meeting Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: August 8, 2005
Publication Date: November 6, 2005
Citation: Morris, J.B., Walker, J.T. 2005. Velvetbean genotypes reduce nematodes. In: Proceedings of the ASA-CSSA-SSSA Annual Meeting, November 6-10, 2005, Salt Lake City, UT. 2005 CDROM. Technical Abstract: Environmental problems associated with commercial nematicides has stimulated research on biological control of plant parasitic nematodes using velvetbean. The regeneration of velvetbeans at the USDA Plant Genetic Resources Conservation Unit (Griffin, GA) led us to investigate their activity as soil amendments against parasitic nematodes, Medloidogyne incognita and M. arenaria as well as the variability for nematode reduction among velvetbean genotypes. Plant tissue from 27 genotypes of Mucuna pruriens var. utilis and related species were mixed separatedly at 0 and 1% (w/w) with soil containing 1000 nematode eggs per liter. Variation in nematode suppression occurred among these velvetbean genotypes. Velvetbeans are promising "natural value added" compounds or as cover crops for nematode control and contain sufficient variability for breeding superior cultivars with nematode fighting capability.