Hostname: page-component-84b7d79bbc-fnpn6 Total loading time: 0 Render date: 2024-08-01T12:21:27.914Z Has data issue: false hasContentIssue false
  • English
  • Français

Selectivity Factors in the Response of Plants to 2,4-DB

Published online by Cambridge University Press:  12 June 2017

Larry R. Hawf  and
Richard Behrens
Larry R. Hawf
Affiliation:
Dep. of Plant Sci., Univ. of Delaware, Newark, DE 19711
Richard Behrens
Affiliation:
Dep. of Agr. and Plant Genetics University of Minnesota, St. Paul, MN 55101
Get access Rights & Permissions [Opens in a new window]

Abstract

Foliar spray retention, absorption and translocation, and the dissipation of 2,4-DB [4-(2,4-dichlorophenoxy)butyric acid] and 2,4-D [(2,4-dichlorophenoxy)acetic acid] were examined to determine their importance as selectivity factors in the response of two 2,4-DB-tolerant legumes, alfalfa (Medicago sativa L.) and red clover (Trifolium pratense L.), and two susceptible broadleaf weeds, redroot pigweed (Amaranthus retroflexus L.) and common cocklebur (Xanthium pensylvanicum Wallr.). The legumes were as effective as the broadleaf weeds in metabolizing (beta-oxidizing) 2,4-DB to 2,4-D. The relatively greater tolerance of the legumes than of the broadleaf weeds to 2,4-DB arose from a combination of poorer spray retention, less effective absorption and translocation, and a more rapid degradation of the 2,4-D arising from the beta-oxidation of 2,4-DB.

Type
Research Article
Information
Weed Science , Volume 22 , Issue 3 , May 1974 , pp. 245 - 249
Copyright
Copyright © 1974 by the 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. Behrens, R. and Morton, H.L. 1963. Some factors influencing activity of 12 phenoxy acids on mesquite root inhibition. Plant Physiol. 38:165–170.Google Scholar
2. Bevenue, A., Zweig, G., and Nash, N.L. 1962. Residue determination of 2,4-dichlorophenoxyacetic acid in dry crops and walnuts. J. Assoc. Offic. Agr. Chem. 45:990–993.Google Scholar
3. Blackman, G.E. 1956. Interrelationship between the uptake of 2,4-dichlorophenoxyacetic acid, growth and ion absorption. Pages 253–259 in Wain, R.L. and Wightman, F., eds. The Chemistry and Mode of Action of Plant Growth Substances. Butterworths Scientific pub., London.Google Scholar
4. Fawcett, C.H., Ingram, J.M.A., and Wain, R.L. 1954. The beta-oxidation of ω-phenoxyalkylcarboxylic acids in the flax plant in relation to their plant growth-regulating activity. Proc. Roy. Soc. Ser. B. 142:60–72.Google Scholar
5. Fertig, S.N., Loos, M.A., and Lisk, D.J. 1964. Formation of 2,4-D in 4-(2,4-DB) treated timothy, birdsfoot trefoil, and sterile pea plants. Weeds 12:147–148.Google Scholar
6. Gutenmann, W.H. and Lisk, D.J. 1963. Rapid determination of 4-(2,4-DB) and a metabolite, 2,4-D, in treated forage by electron affinity spectroscopy. J. Agr. Food Chem. 11:304–306.CrossRefGoogle Scholar
7. Linscott, D.L., Hagin, R.D., and Dawson, J.E. 1968. Conversion of 4-(2,4-dichlorophenoxy)butyric acid to homologs by alfalfa. Mechanism of resistance to this herbicide. J. Agr. Food Chem. 16:844–848.Google Scholar
8. Loos, M.A. 1969. Phenoxyalkanoic acids. Pages 1–47 in Kearney, P.C. and Kaufmann, D.D. eds. Degradation of Herbicides. M. Dekker, Inc., New York.Google Scholar
9. Robertson, M.M. and Kirkwood, R.C. 1966. Differential uptake and movement as a factor influencing selective toxicity of MCPA and MCPB. Proc. Brit. Weed Contr. Conf. 269–277.Google Scholar
10. Synerholm, M.E. and Zimmerman, P.W. 1947. Preparation of a series of 2-(2,4-dichlorophenoxy)aliphatic acids and some related compounds with a consideration of their biochemical role as plant-growth regulators. Contrib. Boyce Thompson Inst. 14:369–382.Google Scholar
11. Wain, R.L. 1954. Selective weed control–some new developments at Wye. Proc. Brit. Weed Contr. Conf. 311–320.Google Scholar
12. Wain, R.L. 1955. Herbicidal selectivity through specific action of plants on compounds applied. J. Agr. Food Chem. 3:128–130.Google Scholar
13. Wain, R.L. 1955. A new approach to selective weed control. Ann. Appl. Biol. 42:151–157.Google Scholar
14. Wain, R.L. 1957. Selective weed control with MCPB. Agriculture 63:575–579.Google Scholar
15. Wain, R.L. 1964. The behavior of herbicides in plants in relation to selectivity. Pages 465–581 in Audus, L. J., ed. Physiology and Biochemistry of Herbicides, Academic Press, New York.Google Scholar
16. Wain, R.L. and Wightman, F. 1954. The growth-regulating activity of certain ω-substituted alkylcarboxylic acids in relation to their β-oxidation within the plant. Proc. Roy. Soc. Ser. B. 142:525–536.Google Scholar