Hostname: page-component-745bb68f8f-hvd4g Total loading time: 0 Render date: 2025-01-09T21:41:18.980Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of Chlorsulfuron or 2,4-D upon Diclofop-Methyl Efficacy in Oat (Avena sativa)

Published online by Cambridge University Press:  12 June 2017

Chris Hall ,
Lloyd V. Edgington  and
Clayton M. Switzer
Chris Hall
Affiliation:
Dep. Environ. Biol., Univ. of Guelph, Guelph, Ontario, Canada N1G 2W1
Lloyd V. Edgington
Affiliation:
Dep. Environ. Biol., Univ. of Guelph, Guelph, Ontario, Canada N1G 2W1
Clayton M. Switzer
Affiliation:
Dep. Environ. Biol., Univ. of Guelph, Guelph, Ontario, Canada N1G 2W1
Get access Rights & Permissions [Opens in a new window]

Abstract

Oat (Avena sativa L. ‘Elgin′) seedlings were treated with combinations of diclofop-methyl {methyl ester of 2-[4-(2,4-dichlorophenoxy)phenoxy] propanoic acid} and 2,4-D amine [dimethylamine salt of (2,4-dichlorophenoxy) acetic acid] or diclofop-methyl and chlorsulfuron {2-chloro-N-[[(4-methoxy-6-methyl-1, 3, 5-triazin-2-yl)amino] carbonyl] benzenesulfonamide} to determine the effect of the added herbicide on diclofop-methyl activity. Diclofop-methyl applied alone at rates of 0.50, 0.75, and 1.00 kg/ha killed the oat plants 14 days after treatment. When 2,4-D amine at 0.74 and 1.11 kg/ha was combined with diclofop-methyl, the phytotoxicity of diclofop-methyl was reduced. An antagonistic interaction between diclofop-methyl and 2,4-D was detected. Chlorsulfuron, applied alone, at 20, 40, or 60 g/ha did not affect the growth of oats. Chlorsulfuron additions did not affect the activity of diclofop-methyl. Diclofop-methyl reduced oat coleoptile elongation. Equimolar concentrations of diclofop-methyl and 2,4-D at or above 1 μM significantly reduced the 2,4-D response. A ten-fold increase of either 2,4-D or diclofop-methyl, above an equimolar concentration of 1 μM, significantly enhanced the effect of the herbicide being increased.

Keywords

Antagonismantiauxinauxin receptor site
Type
Research Article
Information
Weed Science , Volume 30 , Issue 6 , November 1982 , pp. 672 - 676
Copyright
Copyright © 1982 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. Carney, A. W., Stephenson, G. R., Ormrod, D. P., and Ashton, G. C. 1973. Ozone-herbicide interaction in crop plants. Weed Sci. 21:508–511.CrossRefGoogle Scholar
2. Chow, P.N.P. 1974. Evaluation of the Hoe 23408 mixtures for control of wild oats and green foxtail in barley. Res. Rep. Can. Weed Comm. (Western Section). pp. 352–353.Google Scholar
3. Colby, S. R. 1967. Calculating synergistic and antagonistic responses of herbicide combinations. Weeds 15:20–22.Google Scholar
4. Fletcher, R. A. and Drexler, D. M. 1980. Interactions of diclofop-methyl and 2,4-D in cultivated oats (Avena sativa . Weed Sci. 28:363–366.Google Scholar
5. Jacobson, L. 1951. Maintenance of iron supply in nutrient solutions by single addition of ferric potassium ethylenediamine tetra-acetate. Plant Physiol. 26:411–413.Google Scholar
6. Mitchell, J. W. and Livingston, G. A. 1968. Methods of studying plant hormones and growth-regulating substances. Agric. Handb. No. 336. Agric. Res. Serv., U.S. Dep. Agric., Washington, DC.Google Scholar
7. Olson, W. A. and Nalewaja, J. D. 1981. Antagonistic effects of MCPA on wild oat (Avena fatua) control with diclofop. Weed Sci. 29:566–571.Google Scholar
8. O'Sullivan, P. A., Friesen, H. A., and VandenBorn, W. H. 1976. Influence of herbicides for broadleaved weeds and adjuvants with diclofop-methyl on wild oat control. Can. J. Plant Sci. 57:117–125.Google Scholar
9. Ray, T. B. 1980. Studies on the mode of action of DPX-4189. Proc. Br. Crop Prot. Conf. – Weeds. Vol. I. pp. 7–14.Google Scholar
10. Shimabukuro, M. A., Shimabukuro, R. H., Nord, W. S., and Hoerauf, R. F. 1978. Physiological effects of methyl-2-[4-(2,4-dichlorophenoxyl propanoate on oat, wild oat and wheat. Pestic. Biochem. Physiol. 8:199–207.CrossRefGoogle Scholar
11. Shimabukuro, R. H., Hoerauf, R. H., and Walsh, W. C. 1980. Antagonism of auxin-induced growth responses by diclofop in whole plants and tissue culture. Abstr., Weed Sci. Soc. Am. p. 100.Google Scholar
12. Todd, B. G. and Stobbe, E. H. 1980. The basis of the antagonistic effect of 2,4-D on diclofop-methyl toxicity to wild oat (Avena fatua . Weed Sci. 28:371–377.Google Scholar