Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-27T14:36:42.791Z Has data issue: false hasContentIssue false
  • English
  • Français

The Influence of Glyphosate on Bud Dormancy in Leafy Spurge (Euphorbia esula)

Published online by Cambridge University Press:  12 June 2017

Bruce D. Maxwell ,
Michael E. Foley  and
Peter K. Fay
Bruce D. Maxwell
Affiliation:
Plant and Soil Sci. Dep., Montana State Univ., Bozeman, MT 59717
Michael E. Foley
Affiliation:
Plant and Soil Sci. Dep., Montana State Univ., Bozeman, MT 59717
Peter K. Fay
Affiliation:
Plant and Soil Sci. Dep., Montana State Univ., Bozeman, MT 59717
Get access Rights & Permissions [Opens in a new window]

Abstract

Glyphosate [N-(phosphonomethyl)glycine] was applied in the spring and fall to leafy spurge (Euphorbia esula L. # EPHES) in the field at rates of 0.14 to 4.48 kg ai/ha. Fall applications of glyphosate at rates of 0.56 to 4.48 kg/ha stimulated axillary branching and caused an increase in the number of stems/m2 by the end of the following summer in a dense population. This was a result of shoot growth from buds on the crown region of the root system. The absorption and translocation of 14C-glyphosate applied to leaves of mature leafy spurge plants were evaluated at prebloom, full-bloom, and senescence phenological stages. Approximately 81% of the 14C-glyphosate applied to the leaves of senescing plants was absorbed. There was a decrease in the proportion of 14C translocated out of the treated leaf when applications were made after full bloom. Translocation of 14C to the treated stem, nontreated stems, root crown, and roots did not differ with phenological stage in 1983. Translocation and concentration of 14C in most plant parts in 1985 differed with phenological stage. Translocation to the crown buds as a percentage of the 14C absorbed was highest at the senescence stage. At senescence and before soil freezing, leafy spurge crown buds demonstrate transient but active elongation toward the soil surface. This active development may account for the enhanced translocation of 14C into the crown buds.

Keywords

Absorptiontranslocation“witches' broom,”developmental arrestEPHES
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 35 , Issue 1 , January 1987 , pp. 6 - 10
Copyright
Copyright © 1987 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. Amrhein, N., Deus, B., Gehrke, P., and Steinrucken, H. C. 1980. The site of the inhibition of the shikimate pathway by glyphosate. II. Interference of glyphosate with chorismate formation in vivo and in vitro. Plant Physiol. 66:830–834.Google Scholar
2. Bakke, A. L. 1936. Leafy spurge, Euphorbia esula L. Iowa Agric. Exp. Stn. Bull. 198:209–245.Google Scholar
3. Baur, J. R. 1979. Reduction of glyphosate-induced tillering in sorghum (Sorghum bicolor) by several chemicals. Weed Sci. 27:69–73.Google Scholar
4. Baur, J. R. 1979. Effect of glyphosate on auxin transport in corn and cotton tissue. Plant Physiol. 63:882–886.Google Scholar
5. 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.CrossRefGoogle Scholar
6. Coupland, R. T. and Alex, J. F. 1955. Distribution of the underground parts of leafy spurge (Euphorbia esula L.). Can. J. Agric. Sci. 34:161–176.Google Scholar
7. 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
8. Gottrup, O., O'Sullivan, P. A., Schraa, R. J., and Vanden Born, W. H. 1976. Uptake, translocation, metabolism, and selectivity of glyphosate in Canada thistle and leafy spurge. Weed Res. 16:197–201.CrossRefGoogle Scholar
9. Jablanović, M. and Nooden, L. D. 1974. Changes in competible IAA binding in relation to bud development in pea seedlings. Plant Cell Physiol. 15:687–692.CrossRefGoogle Scholar
10. Jaworski, E. G. 1972. Mode of action of N-(phosphonomethyl) glycine: Inhibition of aromatic amino acid biosynthesis. J. Agric. Food Chem. 20:1195–1198.Google Scholar
11. Lee, T. T. 1982. Mode of action of glyphosate in relation to metabolism of indol-3-acetic acid. Physiol. Plant. 54:284–294.Google Scholar
12. Lee, T. T. 1984. Release of lateral buds from apical dominance by glyphosate in soybeans and pea seedlings. J. Plant Growth Regul. 3:227–235.CrossRefGoogle Scholar
13. McIntyre, G. I. 1979. Developmental studies on Euphorbia esula. Evidence of competition for water as a factor in the mechanism of root bud inhibition. Can. J. Bot. 57:2572–2581.Google Scholar
14. Raju, M.V.S. 1975. Experimental studies on leafy spurge (Euphorbia esula L.). I. Ontogeny and distribution of buds and shoots on the hypocotyl. Bot. Gaz. 136:254–261.Google Scholar
15. Raju, M.V.S. and Marchuk, W. N. 1977. Experimental studies on leafy spurge (Euphorbia esula L.). III. Xylem development in relation to the hypocotylary bud growth. Bot. Gaz. 138:305–311.Google Scholar
16. Selleck, G. W., Coupland, R. T., and Frankton, C. 1962. Leafy spurge in Saskatchewan. Ecol. Monogr. 32:1–29.Google Scholar
17. Sprankle, P., Meggitt, W. F., and Penner, D. 1975. Absorption action, and translocation of glyphosate. Weed Sci. 23:235–240.CrossRefGoogle Scholar
18. Swanson, B. T. and Shuman, L. 1982. The effect of Roundup on selected deciduous and evergreen plants. Plant Propagator 28:8–13.Google Scholar
19. Waldecker, M. A. and Wyse, D. L. 1985. Soil moisture effects on glyphosate absorption and translocation in common milkweed (Asclepias syriaca). Weed Sci. 33:299–305.Google Scholar