Influence of Virginia Market Type Genotype on Peanut Response to Weed Interference

Place, G.T. and Reberg-Horton, S.C. and Jordan, D.L. and Isleib, T.G. and Wilkerson, G.G. (2012) Influence of Virginia Market Type Genotype on Peanut Response to Weed Interference. Peanut Science, 39 (1). pp. 22-29.

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Abstract

Differences in the ability of cultivars to compete with weeds are not well-defined for peanut. Research was conducted in 2007 and 2008 to compare the growth and competitiveness of the virginia market type cultivars NC 10C, NC-V 11, NC 12C, Phillips, VA 98R, and breeding lines N99027L, N01013T, and N02020J under weedy and weed-free conditions. Weed-free peanut was established by applying preemergence and postemergence herbicides throughout the growing season supplemented by weekly hand removal of weeds. Clethodim was applied to weedy peanut to eliminate annual grass interference but not interference from broadleaf weeds and sedges. Weed-free peanut biomass, weedy peanut biomass, and weed biomass were not affected by genotype 10 weeks after peanut emergence. Although substantial yield loss was noted in presence of weeds, the percent yield loss did not vary by genotype when comparing weedy and weed-free yield. These data suggest that cultivar selection within virginia market type peanut will have limited utility in a comprehensive weed management strategy

Item Type:	Article
Uncontrolled Keywords:	Cultural weed management, integrated weed management, weed suppression, weed tolerance, cultivar selection
Author Affiliation:	Research Associate, Crop Science Department, North Carolina State University, Raleigh, NC
Subjects:	Plant Protection Crop Improvement
Divisions:	Groundnut
Depositing User:	Mr B Krishnamurthy
Date Deposited:	04 Feb 2013 03:17
Last Modified:	04 Feb 2013 03:17
Official URL:	http://dx.doi.org/10.3146/PS10-12.1
URI:	http://eprints.icrisat.ac.in/id/eprint/9456

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