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Distribution and Metabolism of Simazine in Simazine-Tolerant and -Intolerant Poplar (Populus sp.) Clones

Published online by Cambridge University Press:  12 June 2017

O. A. Akinyemiju ,
D. I. Dickmann  and
R. A. Leavitt
O. A. Akinyemiju
Affiliation:
Dep. of Plant Sci., Univ. of Ife., Ile-Ife, Nigeria
D. I. Dickmann
Affiliation:
Dep. of For., Pesticide Res. Center, Michigan State Univ., East Lansing, MI 48824-1222
R. A. Leavitt
Affiliation:
Dep. of For., Pesticide Res. Center, Michigan State Univ., East Lansing, MI 48824-1222
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Abstract

Soil uptake, translocation, and metabolism of simazine (2-chloro-4,6-bis(ethylamino)-s-triazine) by tolerant poplar clone Populus × euramericana I-45/51, a section Aigeiros hybrid, and intolerant clone P. maximowiczii × P. trichocarpa Kingston, a section Tacamahaca hybrid were compared. Concentrations of simazine in the two clones were not different 48 h and 1 week after application. However, the presence of 2-chloro-4-amino-6-ethylamino-s-triazine (G-28279), a less toxic simazine metabolite, was detected in tolerant clone I-45/51 after 12 h and it increased steadily through 1 week after simazine application. In contrast, no trace of G-28279 was found in susceptible clone, Kingston.

Keywords

Tolerance mechanismplant residuesimazine uptaketranslocationmetabolism

Information

Type
Research Article
Information
Weed Science , Volume 31 , Issue 6 , November 1983 , pp. 775 - 778
Copyright
Copyright © 1983 Weed Science Society of America 

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References

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