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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

Literature Cited

1. Baur, J. R., and Bovey, R. W. 1970. The uptake of picloram by potato tuber tissue. Weed Sci. 18:22–24.Google Scholar
2. Baur, J. R., Bovey, R. W., and Smith, J. D. 1969. Herbicide concentrations in live oak treated with mixtures of picloram and 2,4,5-T. Weed Sci. 17:567–570.Google Scholar
3. Bovey, R. W., Davis, F. S., and Morton, H. L. 1968. Herbicide combinations for woody plant control. Weed Sci. 16:332–335.CrossRefGoogle Scholar
4. Davis, F. S., Bovey, R. W., and Merkle, M. G. 1968. Effect of paraquat and 2,4,5-T on the uptake and transport of picloram in woody plants. Weed Sci. 16:336–339.CrossRefGoogle Scholar
5. Davis, F. S., Bovey, R.W., and Merkle, M. G. 1968. The role of light, concentration, and species in foliar uptake of herbicides in woody plants. Forest Sci. 14:164–169.Google Scholar
6. Davis, F. S., Merkle, M. G., and Bovey, R. W. 1968. Effect of moisture stress on the absorption and transport of herbicides in woody plants. Bot. Gaz. 129:183–189.Google Scholar
7. Franke, W., 1967. Mechanisms of foliar penetration of solutions. Ann. Rev. Plant Physiol. 18:281–300.Google Scholar
8. Freed, V. H., and Montgomery, M. 1958. The effect of surfactants on foliar absorption of 3-amino-l,2,4-triazole. Weeds 6:386–389.Google Scholar
9. Merkle, M. G., and Davis, F. S. 1966. The use of gas chromatography in determining translocation of picloram and 2,4,5-T. Proc. So. Weed Conf. 19:557–561.Google Scholar
10. Merkle, M. G., and Davis, F. S. 1967. Effect of moisture stress on absorption and movement of picloram and 2,4,5-T in beans. Weeds 15:10–12.CrossRefGoogle Scholar
11. Steele, R. G. D., and Torrie, J. H. 1960. Principles and Procedures of Statistics. McGraw-Hill Book Co., New York. 481 p.Google Scholar
12. Swanson, C. R., and Baur, J. R. 1969. Absorption and penetration of picloram in potato tuber discs. Weed Sci. 17: 311–314.CrossRefGoogle Scholar