Hostname: page-component-586b7cd67f-dsjbd Total loading time: 0 Render date: 2024-11-26T09:45:56.693Z Has data issue: false hasContentIssue false
  • English
  • Français

Effects of Frost and Maturity on Glyphosate Phytotoxicity, Uptake, and Translocation

Published online by Cambridge University Press:  12 June 2017

H. E. Davis ,
R. S. Fawcett  and
R. G. Harvey
H. E. Davis
Affiliation:
Dep. Agron., Univ. of Wisconsin, Madison, WI 53706
R. S. Fawcett
Affiliation:
Dep. Agron., Univ. of Wisconsin, Madison, WI 53706
R. G. Harvey
Affiliation:
Dep. Agron., Univ. of Wisconsin, Madison, WI 53706
Get access Rights & Permissions [Opens in a new window]

Abstract

The effect of temperatures below 0 C and plant maturity on the phytotoxicity of glyphosate [N-(phosphonomethyl)glycine] on rapidly growing alfalfa (Medicago sativa L. ‘Vernal’) and quackgrass [Agropyron repens (L.) Beauv.] plants was studied in a controlled environment. Pretreatment at −4 C partially protected alfalfa from injury by 0.8 kg/ha of glyphosate at six alfalfa maturities. This same treatment had no significant effect on glyphosate phytotoxicity to quackgrass. Pretreatment at −4 C increased translocation of glyphosate in quackgrass but reduced its translocation in alfalfa. A greater reduction in translocation occurred in the smaller alfalfa plants.

Keywords

Agropyron repensMedicago sativaplant growth
Type
Research Article
Information
Weed Science , Volume 27 , Issue 1 , January 1979 , pp. 110 - 114
Copyright
Copyright © 1979 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. Davis, H. E. and Fawcett, R. S. 1976. The effect of frost on glyphosate phytotoxicity to alfalfa and quackgrass. Abstr. 187, Weed Sci, Soc. Am., p. 77.Google Scholar
2. Davis, H. E., Fawcett, R. S., and Harvey, R. G. 1978. Effect of fall frost on the activity of glyphosate on alfalfa (Medicago sativa) and quackgrass (Agropyron repens). Weed Sci. 26:41–45.CrossRefGoogle Scholar
3. Weatherley, P. E. and Watson, T. B. 1969. Some low temperature effects on sieve tube translocation in Salix viminalis . Ann. Bot. 33:845–853.Google Scholar
4. Yamaguchi, S. and Crafts, A. S. 1958. Autoradiographic method for studying absorption and translocation of herbicides using C14-labeled compounds. Hilgardia 28:161–191.CrossRefGoogle Scholar