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Phytotoxicity of 2,4,5-T, Picloram, and Dicamba, Alone and in Mixtures in Tissue Culture

Published online by Cambridge University Press:  12 June 2017

R. W. Bovey ,
J. R. Baur  and
J. D. Diaz-Colon
R. W. Bovey
Affiliation:
U.S. Dep. of Agr., Agr. Res. Serv., and Dep. of Range Sci., Texas A&M Univ., College Station, TX 77843
J. R. Baur
Affiliation:
U.S. Dep. of Agr., Agr. Res. Serv., and Dep. of Range Sci., Texas A&M Univ., College Station, TX 77843
J. D. Diaz-Colon
Affiliation:
U.S. Dep. of Agr., Agr. Res. Serv., and Dep. of Range Sci., Texas A&M Univ., College Station, TX 77843
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Abstract

The herbicide 2,4,5-T [(2,4,5-trichlorophenoxy) acetic acid], at concentrations of 10−4 and 10−6 M in nutrient media, was more inhibitory to the growth of soybean (Glycine max (L.) Merr. “Acme”) tissue culture than dicamba (3,6-dichloro-o-anisic acid) or picloram (4-amino-3,5,6-trichloropicolinic acid). Dicamba (10−6 and 10−8 M) and 2,4,5-T (10−8M) stimulated growth of soybean tissue. Mixing equimolar solutions of 2,4,5-T + dicamba, 2,4,5-T + picloram, or picloram + dicamba at 10−4, 10−6, and 10−8 M did not increase phytotoxicity over that of the most phytotoxic herbicide of the pair.

Type
Research Article
Information
Weed Science , Volume 22 , Issue 2 , March 1974 , pp. 191 - 192
Copyright
Copyright © 1974 by the Weed Science Society of America 

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References

Literature Cited

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