Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-30T19:52:31.179Z Has data issue: false hasContentIssue false
  • English
  • Français

Interactions of Diclofop-Methyl and 2,4-D in Cultivated Oats (Avena sativa)

Published online by Cambridge University Press:  12 June 2017

R. A. Fletcher  and
D. M. Drexler
R. A. Fletcher
Affiliation:
Dep. Environ. Biol., Univ. of Guelph, Guelph, Ontario, Canada N1G 2W1
D. M. Drexler
Affiliation:
Dep. Environ. Biol., Univ. of Guelph, Guelph, Ontario, Canada N1G 2W1
Get access Rights & Permissions [Opens in a new window]

Abstract

The chlorophyll levels and growth of oat (Avena sativa L. ‘Elgin’) seedlings were drastically reduced after foliar application of diclofop-methyl {methyl 2-[4-(2,4-dichlorophenoxy)phenoxy] propanoate}. The leaves were chlorotic and necrotic with the newly emerging leaves being most affected. Plants treated with 2,4-D [(2,4-dichlorophenoxy)acetic acid] were similar to the controls. When 2,4-D was applied to intact plants in combination with diclofop-methyl the toxicity symptoms produced by diclofop-methyl were reduced. Diclofop-methyl disrupted membrane integrity and inhibited chlorophyll formation in excised leaf segments. Addition of 2,4-D with diclofop-methyl did not change the effects produced by diclofop-methyl alone in excised leaf segments.

Keywords

Antagonismchlorophyllmembrane
Type
Research Article
Information
Weed Science , Volume 28 , Issue 4 , July 1980 , pp. 363 - 366
Copyright
Copyright © 1980 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. Brezeanu, A. G., Davis, D. G., and Shimabukuro, R. H. 1976. Ultrastructural effects and translocation of methyl-2-(4-(2,4-dichlorophenoxy)phenoxy) propanoate in wheat (Triticum aestivum) and wild oats (Avena fatua . Can. J. Bot. 54:2038–2048.CrossRefGoogle Scholar
2. Chow, P. N. P. and LaBerge, D. E. 1978. Wild oat herbicide studies. 2. Physiological and chemical changes in barley and wild oats treated with diclofop-methyl herbicide in relation to plant tolerances. J. Agric. Food Chem. 26:1134–1137.CrossRefGoogle Scholar
3. O'Sullivan, P. A., Friesen, H. A., and Vanden Born, W. H. 1977. Influence of herbicides for broadleaved weeds and adjuvants with dichlofop methyl on wild oat control. Can. J. Plant Sci. 57:117–125.CrossRefGoogle Scholar
4. Owino, M. G., Todd, B. G., and Stobbe, E. H. 1975. Control of wild oats and green foxtail in wheat by HOE 23408, benzoylpropethyl, and barban. Can. Weed Comm. Res. Rep. West. Sect. p. 516.Google Scholar
5. Qureshi, F. A., and Vanden Born, W. H. 1979. Interaction of diclofop-methyl and MCPA on wild oats (Avena fatua . Weed Sci. 27: 202–205.CrossRefGoogle Scholar
6. Shimabukuro, M. A., Shimabukuro, R. H., Nord, W. S., and Hoerauf, R. A. 1978. Physiological effects of methyl 2-[4(2,4-dichlorophenoxy)phenoxy] proponate on oat, wild oat and wheat. Pestic. Biochem. Physiol. 8:199–207.CrossRefGoogle Scholar