Hostname: page-component-cd9895bd7-p9bg8 Total loading time: 0 Render date: 2024-12-22T19:11:39.541Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of Temperature on Picloram Absorption and Translocation in Leafy Spurge (Euphorbia esula)

Published online by Cambridge University Press:  12 June 2017

Rodney G. Lym  and
Calvin G. Messersmith
Rodney G. Lym
Affiliation:
Crop and Weed Sci. Dep., N.D. State Univ., Fargo, ND 58105
Calvin G. Messersmith
Affiliation:
Crop and Weed Sci. Dep., N.D. State Univ., Fargo, ND 58105
Get access Rights & Permissions [Opens in a new window]

Abstract

Temperature changes prior to picloram application affects its activity in leafy spurge. Absorption of 14C picloram was directly correlated with temperature changes; each 1 C increase in air temperature 24 h before treatment resulted in a 1% increase of 14C-picloram absorption in leafy spurge and vice versa. The greatest 14C-picloram absorption averaged 47% of applied 14C when the temperature increased from 18 C to 24 or 30 C 24 h before treatment compared to 33% when temperatures were constant. Translocation of 14C picloram was more sensitive than absorption to temperature changes with 4.3 and 1% of applied 14C-picloram translocated to the roots when the plants were maintained at 12 and 30 C, respectively. Even though absorption increased directly with temperature, 14C-picloram translocation to the root system declined as temperature increased.

Keywords

Picloram, 4-amino-3,5,6-trichloro-2-pyridinecarboxylic acidleafy spurge, Euphorbia esula L. # EPHESEnvironmentpasture and rangeland weed controlEPHES
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 38 , Issue 6 , November 1990 , pp. 471 - 474
Copyright
Copyright © 1990 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. Alley, H. P. and Messersmith, C. G. 1985. Chemical control of leafy spurge. Pages 65–78 in Watson, A. K., ed. Leafy Spurge. Monogr. 3 Weed Sci. Soc. Am., Champaign, IL 61820.Google Scholar
2. Brady, H. A. 1970. High temperature boosts 2,4,5-T activity in woody plants. Proc. South. Weed Sci. Soc. 23:234–236.Google Scholar
3. Hickman, M. V., Messersmith, C. G., and Lym, R. G. 1990. Picloram release from leafy spurge roots. J. Range Manage. 43:442–445.CrossRefGoogle Scholar
4. Darwent, A. L. and Behrens, R. 1972. Effect of pretreatment environment on 2,4-D phytotoxicity. Weed Sci. 20:540–544.Google Scholar
5. Lym, R. G. and Messersmith, C. G. 1983. Control of leafy spurge with herbicides. N.D. Farm Res. 40(5):16–19, 26.Google Scholar
6. Lym, R. G. and Messersmith, C. G. 1985. A summary of leafy spurge control in North Dakota since 1963. N.D. Farm Res. 43(1):3–9, 14.Google Scholar
7. Lym, R. G. and Messersmith, C. G. 1985. Leafy spurge control with herbicides in North Dakota: 20-year summary. J. Range Manage. 38:149–154.Google Scholar
8. Lym, R. G. and Messersmith, C. G. 1987. Carbohydrates in leafy spurge roots as influenced by environment. J. Range Manage. 40:139–144.Google Scholar
9. Lym, R. G. and Moxness, K. D. 1989. Absorption, translocation, and metabolism of picloram and 2,4-D in leafy spurge (Euphorbia esula). Weed Sci. 37:498–502.CrossRefGoogle Scholar
10. Morton, H. L. 1966. Influence of temperature and humidity on follar absorption, translocation, and metabolism of 2,4,5-T by meaquite seedlings. Weeds 14:136–141.Google Scholar
11. Moxness, K. D. and Lym, R. G. 1989. Environment and spray additive effects on picloram absorption and translocation in leafy spurge. Weed Sci. 37:181–186.CrossRefGoogle Scholar
12. Richardson, R. G. 1977. A review of foliar absorption and translocation of 2,4-D and 2,4,5-T. Weed Res. 17:259–272.Google Scholar
13. Sargent, J. A. 1965. The penetration of growth regulators into leaves. Annu. Rev. Plant Physiol. 16:1–12.CrossRefGoogle Scholar
14. Sharma, M. P. and Vanden Born, W. H. 1970. Foliar penetration of picloram and 2,4-D in aspen and balsam poplar. Weed Sci. 18:57–63.Google Scholar