Hostname: page-component-586b7cd67f-vdxz6 Total loading time: 0 Render date: 2024-11-22T05:59:29.007Z Has data issue: false hasContentIssue false
  • English
  • Français

Soil Moisture Effects on Glyphosate Absorption and Translocation in Common Milkweed (Asclepias syriaca)

Published online by Cambridge University Press:  12 June 2017

Mark A. Waldecker  and
Donald L. Wyse
Mark A. Waldecker
Affiliation:
Dep. Agron. and Plant Genet., Univ. of Minnesota, St. Paul, MN 55108
Donald L. Wyse
Affiliation:
Dep. Agron. and Plant Genet., Univ. of Minnesota, St. Paul, MN 55108
Get access Rights & Permissions [Opens in a new window]

Abstract

Absorption and translocation of 14C-glyphosate [N-(phosphonomethyl)glycine] by moisture-stressed common milkweed (Asclepias syriaca L. ♯ ASCSY) was studied in greenhouse and growth chamber experiments. Water-stressed [13% (w/w) soil moisture] common milkweed plants treated with glyphosate at 1.1 kg ae/ha produced shoot regrowth equal to untreated plants, whereas shoot regrowth of nonstressed [25% (w/w) soil moisture] glyphosate-treated plants was only 6% of untreated plants. All shoot regrowth originated from buds on the proximal half of roots. Common milkweed plants, maintained at 25% soil moisture, absorbed 44% of the 14C-glyphosate applied and translocated 20% from the treated leaf, whereas plants at 13% soil moisture absorbed 29% and translocated 7%. Wiping the leaf with tissue paper wetted with distilled water or chloroform prior to 14C-glyphosate application increased absorption from 35 (unwiped leaves) to 62 and 77%, respectively, for plants at 25% soil moisture, and increased absorption from 14 to 42 and 46%, respectively, for plants at 13% soil moisture. Wiping failed to increase translocation out of the treated leaf for plants at either soil moisture regime. Latex samples taken from the abaxial leaf surface opposite 14C-glyphosate-treated leaves and from petioles of treated leaves did not contain 14C, indicating that glyphosate did not enter laticifers. Proximal root buds accumulated less 14C-radioactivity than distal root buds and had lower respiratory rates, suggesting that proximal root buds are more dormant than distal root buds and thus accumulate less glyphosate.

Keywords

Root-bud dormancylaticiferherbicide transportASCSY
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 33 , Issue 3 , May 1985 , pp. 299 - 305
Copyright
Copyright © 1985 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. Ahmadi, M. S., Haderlie, L. C., and Wicks, G. A. 1980. Effect of growth stage and water stress on barnyardgrass (Echinochloa crus-galli) control and on glyphosate absorption and translocation. Weed Sci. 28:277–282.CrossRefGoogle Scholar
2. Baur, J. R., Bovey, R. W., and Veech, J. A. 1977. Growth responses in sorghum and wheat induced by glyphosate. Weed Sci. 25:238–240.Google Scholar
3. Bhowmik, P. C. 1982. Herbicidal control of common milkweed (Asclepias syriaca). Weed Sci. 30:349–351.CrossRefGoogle Scholar
4. Bhowmik, P. C. and Bandeen, J. D. 1970. Life history of common milkweed. Abstr., Weed Sci. Soc. Am. No. 12.Google Scholar
5. Bhowmik, P. C. and Bandeen, J. D. 1976. The biology of Canadian weeds. 19. Asclepias syriaca L. Can. J. Plant Sci. 56:579–589.Google Scholar
6. Bonner, J. and Galston, A. W. 1947. The physiology and biochemistry of rubber formation in plants. Bot. Rev. 13:543–566.Google Scholar
7. Caseley, J. 1972. The effect of environmental factors on the performance of glyphosate against Agropyron repens. Proc. 11th Br. Weed Control Conf. Pages 641–647.Google Scholar
8. Chase, R. L. and Appleby, A. P. 1979. Effects of humidity and moisture stress on glyphosate control of Cyperus rotundus L. Weed Res. 19:241–246.Google Scholar
9. Claus, J. S. and Behrens, R. 1976. Glyphosate translocation and quackgrass rhizome bud kill. Weed Sci. 24:149–152.CrossRefGoogle Scholar
10. Coupland, D. and Caseley, J. C. 1975. Reduction of silica and increase in tillering induced in Agropyron repens by glyphosate. J. Exp. Bot. 26:138–144.Google Scholar
11. Cramer, G. L. and Burnside, O. C. 1981. Control of common milkweed (Asclepias syriaca). Weed Sci. 29:636–640.Google Scholar
12. Darlington, W. A. and Barry, J. B. 1965. Effects of chloroform and surfactants on permeability of apricot leaf cuticle. J. Agric. Food Chem. 13:76–78.Google Scholar
13. Evetts, L. L. and Burnside, O. C. 1972. Germination and seedling development of common milkweed and other species. Weed Sci. 20:371–378.Google Scholar
14. Fernald, M. L. 1950. Gray's Manual of Botany, 8th ed. American Book Company, New York.Google Scholar
15. Groh, H. 1943. Notes on common milkweed. Sci. Agric. 25:625–632.Google Scholar
16. Groh, H. and Dore, W. G. 1945. A milkweed survey in Ontario and adjacent Quebec. Sci. Agric. 25:463–481.Google Scholar
17. McWhorter, C. G. and Azlin, W. R. 1978, Effects of environment on the toxicity of glyphosate to Johnsongrass (Sorghum halepense) and soybeans (Glycine max). Weed Sci. 26:605–608.Google Scholar
18. Sandberg, C. L., Meggitt, W. F., and Penner, D. 1980. Absorption, translocation, and metabolism of 14C-glyphosate in several weed species. Weed Res. 20:195–200.Google Scholar
19. Scholander, P., Hammel, H. T., and Bradstreet, E. D. 1965. Sap pressure in vascular plants. Science 148:339–346.Google Scholar
20. Sprankle, P., Meggitt, W. F., and Penner, D. 1975. Absorption, action, and translocation of glyphosate. Weed Sci. 23:235–240.Google Scholar
21. Wilson, K. J. and Mahlberg, P. G. 1980. Ultrastructure of developing and mature nonarticulated laticifers in the milkweed Asclepias syriaca L. (Asclepiadaceae). Am. J. Bot. 67:1160–1170.CrossRefGoogle Scholar
22. Wyrill, J. B. III and Burnside, O. C. 1976. Absorption, translocation, and metabolism of 2,4-D and glyphosate in common milkweed and hemp dogbane. Weed Sci. 24:557–566.CrossRefGoogle Scholar