Hostname: page-component-586b7cd67f-tf8b9 Total loading time: 0 Render date: 2024-11-26T03:48:12.778Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Fall Frost on the Activity of Glyphosate on Alfalfa (Medicago sativa) and Quackgrass (Agropyron repens)

Published online by Cambridge University Press:  12 June 2017

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

Abstract

The effect of fall frost on the activity of glyphosate [N-(phosphonomethyl)glycine] on alfalfa (Medicago sativa L. ‘Vernal’) and quackgrass [Agropyron repens (L.) Beauv.] was studied in a room of the Biotron, a controlled environment facility of the University of Wisconsin, and in the field in the fall. In a Biotron time-course study, the most effective day of treatment for quackgrass control was the day after the first frost. Quackgrass plants treated the morning after frost had significantly higher uptake and translocation of glyphosate (93%, 55%) than plants treated 4 days before frost (71%, 32%) and greater translocation than plants treated 5 days after frost (24%). In the field, glyphosate was most active on quackgrass when applied the morning after the first frost of the fall. Control of quackgrass treated with 0.4 kg/ha of glyphosate increased from 10% when treated 4 days before the first frost to a maximum of 91% when treated the day of the first frost. No significant effects of frost in decreasing glyphosate toxicity to alfalfa were found. These results minimize the possibility of using this herbicide to remove quackgrass from alfalfa.

Type
Research Article
Information
Weed Science , Volume 26 , Issue 1 , January 1978 , pp. 41 - 45
Copyright
Copyright © 1978 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. Adams, M. S., Titus, John, and McCracken, Michael. 1974. Depth distribution of photosynthetic activity in a Myriophyllum spicatum community in Lake Wingra. Limnol. Oceanogr. 19:377–389.Google Scholar
2. Amy, A. C. 1932. Variations in the organic reserves in underground parts of five perennial weeds from late April to November. Minn. Agric. Exp. Stn. Tech. Bull. 84.Google Scholar
3. Brockman, F. E., Duke, W. B., and Hunt, J. F. 1973. Agronomic factors influencing the effectiveness of glyphosate for quackgrass control. Proc. Northeast Weed Control Conf. 27:21–29.Google Scholar
4. Claus, J. S. and Behrens, R. 1976. Glyphosate translocation and quackgrass rhizome bud kill. Weed Sci. 24:149–152.Google Scholar
5. Davis, H. E., and Fawcett, R. S. 1976. The effect of frost on glyphosate phytoxicity to alfalfa and quackgrass. Abstr. Weed Sci. Soc. Am. p. 77.Google Scholar
6. Hodgson, J. M. 1974. Quackgrass control and crop production with herbicides. Proc. West. Soc. Weed Sci. 27:17–19.Google Scholar
7. Meyer, R. E. and Buchholtz, K. P. 1973. Effect of temperature, carbon dioxide, and oxygen levels on quackgrass rhizome buds. Weeds 11.1–3.Google Scholar
8. Pooswang, W., Huxley, P. A., and Buckley, W. R. 1972. Differences in growth of 4 clones of Agropyron repens (L.) Beauv. Proc. Brit. Weed Control Conf. pp. 38–45.Google Scholar
9. Sprankle, P. and Meggitt, W. F. 1972. Effective control of quackgrass with fall and spring applications of glyphosate. Proc. North Cent. Weed Control Conf. 27:54.Google Scholar
10. Sprankle, Paul, Meggitt, W. F., and Penner, Donald. 1975. Absorption, action, and translocation of glyphosate. Weed Sci. 23:235–240.Google Scholar
11. Weatherley, P. E. and Watson, B. T. 1969. Some low-temperature effects on sieve tube translocation in Salix viminalis . Ann. Bot. 33: 845–853.Google Scholar