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Penetration and Translocation of Picloram in Canada Thistle

Published online by Cambridge University Press:  12 June 2017

M. P. Sharma ,
F. Y. Chang  and
W. H. Vanden Born
M. P. Sharma
Affiliation:
Dep. of Plant Sci., Univ. of Alberta, Edmonton, Alberta, Canada
F. Y. Chang
Affiliation:
Dep. of Plant Sci., Univ. of Alberta, Edmonton, Alberta, Canada
W. H. Vanden Born
Affiliation:
Dep. of Plant Sci., Univ. of Alberta, Edmonton, Alberta, Canada
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Abstract

Added surfactant and high relative humidity enhanced penetration of 4-amino-3,5,6-trichloropicolinic acid (picloram) into leaves of Canada thistle (Cirsium arvense (L.) Scop.). Leaves and roots of Canada thistle readily absorbed picloram after which it was translocated in both phloem and xylem. Picloram tended to accumulate in young, growing leaves following both foliar and root uptake. In field-grown plants, injury symptoms appeared in young shoots as far as 1 m from treated shoots. The results are in harmony with a “source-to-sink” pattern of picloram translocation in the phloem. Leaves, but not roots, retained a substantial portion of the picloram absorbed. Following foliar application, small amounts of picloram were exuded by the roots into surrounding soil.

Type
Research Article
Information
Weed Science , Volume 19 , Issue 4 , July 1971 , pp. 349 - 355
Copyright
Copyright © Weed Science Society of America 

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References

Literature Cited

1. Agbakoba, C. S. O. and Goodin, J. R. 1970. Absorption and translocation of 14C-labeled 2,4-D and picloram in field bindweed. Weed Sci. 18:168–170.Google Scholar
2. Agbakoba, C. S. O. and Goodin, J. R. 1969. Effect of stage of growth of field bindweed on absorption and translocation of 14C-labeled 2,4-D and picloram. Weed Sci. 17:436–438.Google Scholar
3. Alley, H. P. 1965. A promising future for the control of perennial weeds. Down to Earth 21(1–2):8–10.Google Scholar
4. Basler, E., Slife, F. W., and Long, J. W. 1970. Some effects of humidity on the translocation of 2,4,5-T in bean plants. Weed Sci. 18:396–398.Google Scholar
5. Baur, J. R. and Bovey, R. W. 1969. Distribution of root-absorbed picloram. Weed Sci. 17:524–528.CrossRefGoogle Scholar
6. Bovey, R. W., Davis, F. S., and Merkle, M. G. 1967. Distribution of picloram in huisache after foliar and soil application. Weeds 15:245–249.Google Scholar
7. Chang, F. Y. and Vanden Born, W. H. 1968. Translocation of dicamba in Canada thistle. Weed Sci. 16:176–181.Google Scholar
8. Crafts, A. S. 1961. Translocation in Plants. Holt, Rinehart, and Winston, New York. 182 p.Google Scholar
9. Crafts, A. S. and Yamaguchi, S. 1964. The Autoradiography of Plant Materials. University of California Agr. Publ., Manual 35. Berkeley, California. 143 p.Google Scholar
10. Eliasson, L. 1961. Responses of pea roots to growth substances. Physiol. Plant. 14:803–812.CrossRefGoogle Scholar
11. Leonard, O. A., Weaver, R. J., and Glenn, R. K. 1967. Effect of 2,4-D and picloram on translocation of 14C-assimilates in Vitis vinifera L. Weed Res. 7:208–219.Google Scholar
12. Müller, V. F. 1969. Zusammenhänge zwischen Entwicklungsalter, Kohlenhydrathaushalt und Transport von 14C-MCPA bei einingen mehrjährigen Unkräutern. Z. für Pflanzenkrankh. und Pflanzenschutz 76:473–783.Google Scholar
13. Pallas, J. E. Jr. 1960. Effects of temperature and humidity on foliar absorption and translocation of 2,4-dichlorophenoxy acetic acid and benzoic acid. Plant Physiol. 35:575–580.CrossRefGoogle Scholar
14. Prasad, R., Foy, C. L., and Crafts, A. S. 1967. Effects of relative humidity on absorption and translocation of foliarly-applied dalapon. Weeds 15:149–156.Google Scholar
15. Reid, C. P. P. and Hurtt, W. 1969. Translocation and distribution of picloram in bean plants associated with nastic movements. Plant Physiol. 44:1393–1396.CrossRefGoogle ScholarPubMed
16. Reid, C. P. P. and Hurtt, W. 1970. Root exudation of herbicides by woody plants: allelopathic implications. Nature 255:291.Google Scholar
17. Sargent, J. A. and Blackman, G. E. 1970. Studies on foliar penetration. VI. Factors controlling the penetration of 4-amino 3,5,6-trichloropicolinic acid (picloram) into the leaves of Phaseolus vulgaris . J. Exp. Botany 21:219–227.CrossRefGoogle Scholar
18. Sharma, M. P. and Vanden Born, W. H. 1970. Foliar penetration of picloram and 2,4-D in aspen and balsam poplar. Weed Sci. 18:57–63.Google Scholar
19. Vanden Born, W. H. 1969. Picloram residues and crop production. Can. J. Plant Sci. 49:628–629.Google Scholar
20. Warden, R. L. 1964. Tordon for the control of field bindweed and Canada thistle in north central United States. Down to Earth 20(2):6–10.Google Scholar