Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-02T20:44:03.191Z Has data issue: false hasContentIssue false
  • English
  • Français

Translocation of Dicamba in Canada Thistle

Published online by Cambridge University Press:  12 June 2017

F. Y. Chang  and
W. H. Vanden Born
F. Y. Chang
Affiliation:
Department of Plant Science, University of Alberta, Edmonton, Alberta
W. H. Vanden Born
Affiliation:
Department of Plant Science, University of Alberta, Edmonton, Alberta
Get access Rights & Permissions [Opens in a new window]

Abstract

The foliage and roots of Canada thistle (Cirsium arvense (L.) Scop.) readily absorbed 2-methoxy-3,6-dichlorobenzoic acid (dicamba) after which it was translocated by both phloem and xylem. The results are in harmony with a source-to-sink system of dicamba translocation in the phloem. Following foliar application, small amounts of dicamba were exuded by the roots into surrounding soil. Dicamba tended to accumulate in young, growing leaves following both foliar or root uptake. Leaves, but not roots, retained a substantial portion of the dicamba taken up. After 54 days, 63.1% of the recovered radioactivity in the treated leaf was still in the form of unaltered dicamba. The remaining 36.9% was in the form of an unidentified product. In other plant parts, much less change occurred. During a 54-day period, one-fifth of the dicamba applied was recovered as radioactive CO2.

Type
Research Article
Information
Weed Science , Volume 16 , Issue 2 , April 1968 , pp. 176 - 181
Copyright
Copyright © Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Barker, D. 1959. A comparative life-history study of Cirsium arvense (L.) Scop, and Tussilago farfara L., the most troublesome weeds in the newly reclaimed polders of the former Zuiderzee, p. 205–222. In Harper, J. L. (ed.) The Biology of Weeds. Blackwell Scientific Publications, Oxford.Google Scholar
2. Crafts, A. S. 1961. Translocation in Plants. Holt, Rinehart, and Winston. New York. 182 p.Google Scholar
3. Crafts, A. S. and Robbins, W. W. 1962. Weed Control. 3rd ed. McGraw-Hill Book Co., Inc., New York. 660 p.Google Scholar
4. Crafts, A. S. and Yamaguchi, S. 1964. The Autoradiography of Plant Materials. Univ. of California Agr. Publ., Manual 35. Berkeley, Calif. 143 p.Google Scholar
5. Eliasson, L. 1961. Responses of pea roots to growth substances. Physiol. Plantarum 14:803–812.Google Scholar
6. Hodgson, G. L. 1964. Sodium 3,6-dichloro-2-methoxybenzoate for the control of bracken (Pteridium aquilinum L. Kuhn): results of preliminary trials. Weed Res. 4:167–168.Google Scholar
7. Hurtt, W. and Foy, C. L. 1965. Some factors influencing the excretion of foliarly-applied dicamba and picloram from roots of Black Valentine beans. Plant Physiol. Supp. 40:48.Google Scholar
8. Leonard, O. A., Lider, L. A., and Glenn, R. K. 1966. Absorption and translocation of herbicides by Thompson seedless (Sultanina) grape, Vitis vinifera L. Weed Res. 6:37–49.Google Scholar
9. Linder, P. J., Mitchell, J. W., and Freeman, G. D. 1964. Persistence and translocation of exogenous regulating compounds that exude from roots. J. Agr. Food Chem. 12:437–438.CrossRefGoogle Scholar
10. Muenscher, W. C. 1962. Weeds. 2nd ed. Macmillan Co., New York. 560 p.Google Scholar