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Root Uptake, Translocation, and Metabolism of Nitrofluorfen and Oxyfluorfen by Fababeans (Vicia faba) and Green Foxtail (Setaria viridis)

Published online by Cambridge University Press:  12 June 2017

D. E. Vanstone  and
E. H. Stobbe
D. E. Vanstone
Affiliation:
Res. Stn., Agric. Canada, Box 3001, Morden, Manitoba ROG 1J0
E. H. Stobbe
Affiliation:
Dep. of Plant Sci., Univ. of Manitoba, Winnipeg, Manitoba, Canada R3T 2N2
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Abstract

Root uptake and translocation of nitrofluorfen [2-chloro-1-(4-nitrophenoxy)-4-(trifluoromethyl)benzene] and oxyfluorfen [2-chloro-1-(3-ethoxy-4-nitrophenoxy)-4-(trifluoromethyl)benzene] were measured in fababean (Vicia faba L.) and green foxtail [Setaria viridis (L.) Beauv.] plants, and metabolism was studied using fababean leaf discs and green foxtail leaf segments. Both herbicides were taken up readily from nutrient solution but translocation was limited. In fababeans, 4.6% of the nitrofluorfen label was translocated to the shoot as compared to 2.2% of the oxyfluorfen label. Less than 10% of the nitrofluorfen or oxyfluorfen taken up in vitro was metabolized after 24 h. This rate of metabolism would not likely influence the herbicidal action of either herbicide.

Keywords

Herbicidesdiphenyl ethers
Type
Research Article
Information
Weed Science , Volume 26 , Issue 4 , July 1978 , pp. 389 - 392
Copyright
Copyright © 1978 by the Weed Science Society of America 

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References

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