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Penetration and Initial Translocation of 2,2-dichloropropionic Acid (Dalapon) in Individual Leaves of Zea Mays L.

Published online by Cambridge University Press:  12 June 2017

Chester L. Foy
Chester L. Foy*
Affiliation:
Department of Botany, University of California, Davis
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Abstract

Dalapon–2–C14, applied as droplets, was employed in tracer studies by autoradiography and counting. That dalapon remained non-metabolized throughout the experiment was confirmed by chromatography. Surfactants greatly enhanced (cuticular) penetration. Small amounts of herbicide were sorbed almost instantaneously (15–30 seconds). Movement away from the treated area “showed” or “appeared as” first a diffusional pattern, but soon became channelized in veinlets and larger vascular bundles. Dalapon applied off the midvein did not enter the midvein in appreciable quantities during basipetal transport. Dalapon which entered the midrib originally remained highly concentrated in this channel. During transport, some dalapon was retained or retarded by tissues through which it passed. Retention was greatest in the basal sections (intercalary meristem regions) of young grass blades. A 10-fold build-up of dalapon was demonstrated following drop application off the main vein, but not after treatment on the midrib. Results are explicable on the basis of the known anatomy of Zea and the translocation of dalapon with assimilates.

Type
Research Article
Information
Weeds , Volume 10 , Issue 1 , January 1962 , pp. 35 - 39
Copyright
Copyright © 1962 Weed Science Society of America 

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References

Literature Cited

1. Artschwager, E. 1948. Anatomy and morphology of the vegetation organs of Sorghum vulgare . Tech. Bull. No. 957. U. S. Dept. of Agriculture. Washington, D.C. Google Scholar
2. Ashton, F. M. 1958. Absorption and translocation of radioactive 2,4–D in sugar cane and bean plants. Weeds 6:257–262.Google Scholar
3. Boynton, D. 1954. Nutrition by foliar application. Ann. Rev. Plant Physiol. 5:31–54.Google Scholar
4. Cook, J. A., and Boynton, D. 1952. Some factors affecting the absorption of urea by McIntosh apple leaves. Proc. Am. Soc. Hort. Sci. 59:82–90.Google Scholar
5. Crafts, A. S., and Yamaguchi, S. 1958. Comparative tests on the uptake and distribution of labeled herbicides by Zebrina pendula and Tradescantia fluminensis . Hilgardia 27:421–454.CrossRefGoogle Scholar
6. Currier, H. B., and Dybing, C. D. 1959. Foliar penetration of herbicides—review and present status. Weeds 7:195–213.CrossRefGoogle Scholar
7. Eames, A. J. 1957. Comparative effects of spray treatments with growth regulating substances on the nutgrass Cyperus rotundus L. and anatomical modifications following treatment with butyl 2,4–dichlorophenoxyacetate. Am. T. Bot. 36:571–584.Google Scholar
8. Esau, K., Currier, H. B., and Cheadle, V. I. 1957. Physiology of phloem. Ann. Rev. Plant Physiol. 8:349–374.Google Scholar
9. Fang, S. C., and Butts, J. S. 1954. Studies on plant metabolism. III. Absorption, translocation, and metabolism of radioactive 2,4–D in corn and wheat plants. Plant Physiol. 29:56–60.Google Scholar
10. Foy, C. L. 1960. The adaptation of qualitative and quantitative techniques for determination of radioactive dalapon in plant tissues. Hilgardia 30(5):153–173.Google Scholar
11. Gallup, A. N. 1953. The absorption and respiratory effects of 2,4–D acid as factors contributing to selective herbicidal activity. Univ. of Mich., Pub. No. 5035 Diss. Abs. 13(3): 288.Google Scholar
12. Gallup, A N., and Gustafson, F. G. 1952. Absorption and translocation of radioactive 2,4–dichloro–5–iodo 131-phenoxyacetic acid by green plants. Plant Physiol. 27:603–612.CrossRefGoogle ScholarPubMed
13. Holly, K. 1956. Penetration of chlorinated phenoxyacetic acids into leaves. Ann. Appl. Biol. 44:195–199.Google Scholar
14. Leonard, O. A. 1958. Studies on the absorption and translocation of 2,4–D in bean plants. Hilgardia 28(5):115–160.CrossRefGoogle Scholar
15. Orgell, W. H. 1957. Sorptive properties of the plant cuticle. Proc. Iowa Acad. Sci. 64:189–198.Google Scholar
16. Rouschal, E. 1941. Beiträge zum Wasserhaushalt von Gramineen und Cyperacean. I. Die Faszikuläre Wasserleitung in den Blätten und Beziehung zur Transpiration. Planta 32 (1):66–67.CrossRefGoogle Scholar
17. Skoss, J. D. 1955. Structure and composition of plant cuticle in relation to environmental factors and permeability. Bot. Gaz. 117:55–72.Google Scholar
18. Van Overbeek, J., and Velez, I. 1946. Erradicacion de malas yerbas en Puerto Rico con 2,4–D. Inst. Agr. Trop. Univ. P. R. Bull. No. 1.Google Scholar
19. Weintraub, R. L. 1956. Relation of chemical structure to herbicidal action. Weed Soc. Am. Abs. 1956:41–42.Google Scholar
20. Weintraub, R. L., Reinhart, J. H., and Scherff, R. A. 1956. Role of entry, translocation, and metabolism in specificity of 2,4–D and related compounds U. S. Atomic Energy Comm. TIO 7512, Proc. Conf. Radioisotopes Agr. 203–208.Google Scholar
21. Williams, M. C. 1956. Absorption and translocation of 2,4–dichlorophenoxyacetic acid in certain annual dicotyledons. Univ. of Ill., Pub. No. 18, 211. Diss Abs. 16(2):1771.Google Scholar