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Screening of cowpeas for tolerance to herbicides
Dr. N. R. Burgos and Dr. T. E. Morelock
Department of Crop, Soil, and Environmental Sciences and Department of Horticulture
University of Arkansas
nburgos@uark.edu
morelock@uark.edu
 
Screening of advanced cowpea breeding lines for tolerance to postemergence herbicides for broadleaf weeds and nonselective herbicides is ongoing at the Vegetable Substation in Kibler. Few herbicides are labeled for weed control in cowpea. Two of the most commonly used herbicides, imazethapyr (Pursuit) and trifluralin (Treflan), have already resulted in the development of some herbicide-resistant weed populations in cowpea production fields or in other crops. These experiments are conducted to develop new cowpea cultivars with tolerance to herbicides that have not been previously used in cowpea. This increases the spectrum of weed species that can be controlled and allows rotation of herbicides with different modes of action, which deters the development of herbicide-resistant weeds.

© 2006
University of Arkansas
Division of Agriculture
All rights reserved.
Last Date Modified 01/4/2006
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