Submitted to: Northwest Science
Publication Type: Abstract Only
Publication Acceptance Date: 3/1/2004
Publication Date: 3/25/2004
Citation: Venable, R.E., Kennedy, A. C., Stubbs, T. L. 2004. Rhizobacteria impact plant survival and competition. In: Northwest Scientific Association 77th Annual Meeting. March 24-27, 2004. Ellensburg, WA. p. 49.
Technical Abstract: Rhizobacteria can selectively suppress various plant species. Our research on these organisms has shown that their use has the potential to reduce tillage, agrochemical usage and related ground and surface water contamination. When applied to field soil, these naturally occurring bacteria selectively suppress the growth of seedling downy brome and jointed goatgrass growing in the presence of other plants. These organisms are effective at reducing weeds in rangeland systems as well. Preliminary rangeland results show an increase in plant biodiversity where downy brome was suppressed by application of rhizobacteria compared to untreated areas. The application of microorganisms that alter plant competition and succession has promise for selective management of plant species in various ecosystems.