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Absorption and Penetration of Picloram and 2,4,5-T into Detached Live Oak Leaves

Published online by Cambridge University Press:  12 June 2017

J. R. Baur ,
R. W. Bovey ,
R. D. Baker  and
Imogene Riley
J. R. Baur
Affiliation:
Crops Research Division, Agr. Res. Serv., U.S. Dep. of Agr., Dep. of Range Science, Texas A&M Univ., College Station, Texas
R. W. Bovey
Affiliation:
Crops Research Division, Agr. Res. Serv., U.S. Dep. of Agr., Dep. of Range Science, Texas A&M Univ., College Station, Texas
R. D. Baker
Affiliation:
Dep. of Range Science, Texas A&M Univ., College Station, Texas
Imogene Riley
Affiliation:
Dep. of Range Science, Texas A&M Univ., College Station, Texas
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Abstract

Detached live oak (Quercus virginiana Mill.) leaves were immersed in aqueous solutions of 4-amino-3,5,6-trichloropicolinic acid (picloram) or (2,4,5-trichlorophenoxy)acetic acid (2,4,5-T) for periods up to 4 hr. Herbicide concentration ranged from 10−3 to 10−6M; solutions were adjusted to either pH 4, 6, 7, or 8. Absorption of picloram in the presence of equimolar concentrations of 2,4,5-T exceeded that noted for picloram alone. The presence of picloram in the treating solutions had no effect on absorption of 2,4,5-T. This technique allows evaluation of absorption and penetration characteristics of mixtures of herbicides, solvents, and adjuvants.

Type
Research Article
Information
Weed Science , Volume 19 , Issue 2 , March 1971 , pp. 138 - 141
Copyright
Copyright © Weed Science Society of America 

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References

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