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Relative Phytotoxicities of Dinitroaniline Herbicides

Published online by Cambridge University Press:  12 June 2017

R. G. Harvey
R. G. Harvey*
Affiliation:
Dep. of Agron., Univ. of Wisconsin, Madison, WI 53706
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Abstract

The relative phytotoxicities of 12 substituted dinitroaniline herbicides to soybeans [Glycine max (L.) Merr ‘Corsoy’], velvetleaf (Abutilon theophrasti Medic.), and either giant foxtail (Setaria faberi Herrm.) or foxtail millet [Setaria italica (L.) Beauv.] were compared under greenhouse and laboratory conditions. In these studies, dinitramine (N 4,N 4-diethyl-α,α,α-trifluoro-3,5-dinitrotoluene-2,4-diamine) was most toxic to each species. Dinitramine, trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine), and BAS-3921 H [N-propyl-N-(2-chloroethyl)-α,α,α-trifluoro-2,6-dinitro-p-toluidine] were most inhibitory of soybean shoot growth, while oryzalin (3,5-dinitro-N 4,N 4-dipropyl-sulfanilamide), dinitramine, and BAS-3921 H were most inhibitory of root growth. Similarly, dinitramine, oryzalin, nitralin [4-(methylsulfonyl)-2,6-dinitro-N,N-dipropylaniline], and BAS-3921 H inhibited velvetleaf shoot growth; and oryzalin, dinitramine, chlornidine [2,6-dinitro-N,N-di(2-dichloroethyl)-p-toluidine], nitralin, and GS-39985 (N-n-propyl-N-tetrahydrofurfuryl-4-trifluoromethyl-2,6-dinitroaniline) reduced root growth. All of the herbicides except oryzalin and nitralin inhibited foxtail millet shoot growth, while all of the herbicides reduced root growth.

Type
Research Article
Information
Weed Science , Volume 21 , Issue 6 , November 1973 , pp. 517 - 520
Copyright
Copyright © 1973 Weed Science Society of America 

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References

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