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A Technique for Evaluation of Mixtures of Dalapon and Cacodylic Acid
Published online by Cambridge University Press: 12 June 2017
Abstract
Orchardgrass (Dactylic glomerata L.) and Kentucky bluegrass (Poa pratensis L.) were used as test species to study the phytotoxicity of mixtures of 2,2-dichloropropionic acid (dalapon) and dimethylarsinic acid (cacodylic acid). A technique involving ED50 values, a shortened graphic procedure, and probit transformations was developed. Mixtures in which cacodylic acid was in excess indicated synergistic effects on bluegrass and additive effects on orchardgrass. Dalapon in excess in the mixtures appeared to have had an antagonistic effect on cacodylic acid. Orchardgrass was more tolerant to cacodylic acid than bluegrass.
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- Copyright © 1963 Weed Science Society of America
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