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Absorption and Translocation of SC-0051 in Corn and Soybean

Published online by Cambridge University Press:  20 January 2017

Gregory R. Armel ,
David J. Mayonado ,
Kriton K. Hatzios  and
Henry P. Wilson
Gregory R. Armel
Affiliation:
Eastern Shore Agricultural Research and Extension Center, Virginia Polytechnic Institute and State University, Painter, VA 23420-2827
David J. Mayonado
Affiliation:
Eastern Shore Agricultural Research and Extension Center, Virginia Polytechnic Institute and State University, Painter, VA 23420-2827
Kriton K. Hatzios
Affiliation:
Department of Plant Pathology, Physiology, and Weed Science, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061-0331
Henry P. Wilson*
Affiliation:
Eastern Shore Agricultural Research and Extension Center, Virginia Polytechnic Institute and State University, Painter, VA 23420-2827
*
Corresponding author's E-mail: hwilson@vt.edu
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Abstract

Studies were conducted to compare foliar- and root-based absorption and translocation of SC-0051 in corn and soybean using radio-tracer techniques. Visual injury symptoms expressed in soybean by SC-0051 were bleaching in newly formed (meristematic) tissue followed by necrosis. Corn expressed little to no visual injury. SC-0051 was absorbed more rapidly by foliage of corn and soybean than by their roots. Although soybean absorbed more SC-0051 through roots than did corn, there was no difference between species in foliar absorption of SC-0051. SC-0051 was rapidly translocated throughout corn plants but was concentrated mainly in the meristematic tissue of soybean. Even though there were slight differences in absorption and translocation of SC-0051 in corn and soybean, it is likely that differential metabolism of the herbicide explains selectivity.

Keywords

SC-0051 (proposed name sulcotrione), 2-[2-chloro-4-(methylsulfonyl)benzoyl]-1,3-cyclohexanedionecorn, Zea mays L ‘Gutwein 69B’soybean Glycine max (L.) Merr ‘Essex’Bleaching herbicidesradiolabeled herbicidestriketone herbicidesHAT, hours after treatmentPOST, postemergencePRE, preemergence
Type
Research
Information
Weed Technology , Volume 18 , Issue 2 , June 2004 , pp. 211 - 214
Copyright
Copyright © Weed Science Society of America 

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