Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-19T13:08:00.121Z Has data issue: false hasContentIssue false
  • English
  • Français

Absorption and Translocation of 14C-Labeled 2,4-D and Picloram in Field Bindweed

Published online by Cambridge University Press:  12 June 2017

Chuma S. O. Agbakoba  and
J. R. Goodin
Chuma S. O. Agbakoba
Affiliation:
Department of Agronomy, University of California, Riverside
J. R. Goodin
Affiliation:
Department of Agronomy, University of California, Riverside
Get access Rights & Permissions [Opens in a new window]

Abstract

Absorption and translocation of (2,4-dichlorophenoxy)-acetic acid (2,4-D) and 4-amino-3,5,6-trichloropicolinic acid (picloram) were measured in defoliated and intact field bindweed (Convolvulus arvensis L.) plants. Radioactivity was applied as 5 μl of triethylamine salts of 2,4-D and picloram with an activity of 0.15 μc to a middle leaf in intact and partially-defoliated plants. After treatment for 96 hr, 14C-activity in untreated leaves, stems, growing tips, and roots was measured. Removal of all leaves significantly reduced absorption but not translocation of both 2,4-D and picloram. A greater percentage of the applied picloram than 2,4-D was absorbed in all treatments. Translocation of 14C of both 2,4-D and picloram was greater when (a) upper and lower leaves were removed, (b) upper leaves only were removed, and (c) lower leaves only were removed than (d) when plants were intact. Removal of lower (older) leaves reduced translocation more than removal of upper (younger) leaves.

Type
Research Article
Information
Weed Science , Volume 18 , Issue 1 , January 1970 , pp. 168 - 170
Copyright
Copyright © 1970 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. 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.CrossRefGoogle Scholar
2. Barrier, G. D. and Loomis, W. E. 1957. Absorption and translocation of 2,4-dichlorophenoxyacetic acid and 32P by leaves. Plant Physiol. 32:225–231.CrossRefGoogle Scholar
3. Bovey, R. W., Davis, F. S., and Merkle, M. G. 1967. Distribution of picloram in huisache after foliar and soil applications. Weeds 15:245–249.Google Scholar
4. Crafts, A. S. and Yamaguchi, A. 1958. Comparative tests on the uptake and distribution of labeled herbicides by Zebrina pendula and Tradescantia fluminensis . Hilgardia 27:421–454.Google Scholar
5. Duncan, D. B. 1955. Multiple range and multiple F tests. Biometrics 11:1–42.Google Scholar
6. Day, B. E. 1952. The absorption and translocation of 2,4-dichlorophenoxyacetic acid by bean plants. Plant Physiol. 27:143–152.Google Scholar
7. Gage, R. S. and Aronoff, S. 1960. Translocation III. Experiments with carbon 14, chlorine 36 and hydrogen 3. Plant Physiol. 35:53–64.Google Scholar
8. Hartt, C. E., Kortschak, H. P., and Burr, G. O. 1964. Effects of defoliation, deradication, and darkening the blade upon translocation of 14C in sugarcane. Plant Physiol. 39:15–22.CrossRefGoogle Scholar
9. Leonard, O. A., Lider, L. A., and Lange, A. H. 1964. Toxicity of several herbicides to grape rootings applied to the roots and to the shoots. Amer. J. Enol. and Viticult. 15:206–213.Google Scholar
10. Mitchell, J. W. and Brown, J. W. 1946. Movement of 2,4-dichlorophenoxyacetic acid stimulus and its relation to the translocation of organic materials in plants. Bot. Gaz. 107: 393–407.Google Scholar
11. Morton, H. L. 1966. Influence of temperature and humidity on foliar absorption, translocation, and metabolism of 2,4,5-T by mesquite seedlings. Weeds 14:136–140.Google Scholar
12. Penot, M. 1962. Physiologie végétale. Actions exersées á distance sur L'activité amylolytique de la feuille. Compt. Rend. Acad. Sci. (Paris) 225:159–161.Google Scholar
13. Thaine, R., Ovenden, S. L., and Turner, J. S. 1959. Translocation of labeled assimilates in soybeans. Australian J. Biol. Sci. 12:349–372.Google Scholar
14. Zimmerman, M. H. 1958. Translocation of organic substances in the phloem of trees, p. 381–400. In Thimann, K. V., The Physiology of Forest Trees, (ed.) Ronald Press, New York, N. Y. Google Scholar
15. Zimmerman, M. H. 1960. Transport in the phloem. Ann. Rev. Plant Physiol. 11:167–190.Google Scholar