Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-05T08:09:42.992Z Has data issue: false hasContentIssue false
  • English
  • Français

Uptake, Distribution, and Degradation of Simazine by Black Walnut and Yellowpoplar Seedlings

Published online by Cambridge University Press:  12 June 2017

J. R. Wichman  and
W. R. Byrnes
J. R. Wichman
Affiliation:
Dep. of Forest. and Nat. Resources, Purdue University, W. Lafayette, IN 47907
W. R. Byrnes
Affiliation:
Dep. of Forest. and Nat. Resources, Purdue University, W. Lafayette, IN 47907
Get access Rights & Permissions [Opens in a new window]

Abstract

One-year-old and 3-month-old black walnut (Juglans nigra L.) and yellowpoplar (Liriodendron tulipifera L.) seedlings were treated with ring-labeled 14C-simazine [2-chloro-4,6-bis(ethylamino)-s-triazine] in nutrient culture. Simazine uptake was measured and the levels of simazine and its degradation products monitored at 3, 6, and 9 days following treatment for 1-year-old seedlings and at 3, 8, and 13 days for 3-month-old seedlings. Concentration of simazine and the phytotoxic degradation product monodealkylated simazine [2-chloro-4-amino-6-(ethylamino)-s-triazine] were significantly higher in yellowpoplar than in black walnut leaves. For 1-year-old seedlings, higher concentrations of phytotoxic compounds in yellowpoplar than in black walnut were attributed to greater simazine degradation by black walnut. For 3-month-old seedlings, higher concentrations in yellowpoplar were attributed to greater simazine uptake by yellowpoplar and greater degradation in black walnut. Simazine degradation proceeded rapidly in both species and N-dealkylation was a major pathway. Monodealkylated simazine and 2-chloro-4,6-diamino-s-triazine were isolated from various tissues of black walnut and yellowpoplar. Hydroxysimazine [2-hydroxy-4,6-bis(ethylamino)-s-triazine] was found in yellowpoplar roots but not in any black walnut extracts. Two other degradation products were isolated but not identified.

Type
Research Article
Information
Weed Science , Volume 23 , Issue 6 , November 1975 , pp. 448 - 453
Copyright
Copyright © 1975 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. Crafts, A.S. 1961. The chemistry and mode of action of herbicides. Interscience Publishers, New York – London. 269 pp.Google Scholar
2. Gysin, H. and Knusli, E. 1960. The chemistry and herbicidal properties of triazine derivatives. Pages 289–358 in Metcalf, R.L., ed., Advances in pest control research. Interscience Publishers, N.Y. Google Scholar
3. Hacskaylo, J., Finn, R.F., and Vimmerstedt, J.P. 1969. Deficiency symptoms of some forest trees. Ohio Agr. Res. and Develop. Center, Res. Bull. 1015. 68 pp.Google Scholar
4. Hamilton, R.H. and Moreland, D. 1962. Simazine degradation by corn seedlings. Science. 135:373–374.Google Scholar
5. Lund-Hoie, K. 1969. Uptake, translocation, and metabolism of simazine in Norway spruce (Picea abies). Weed Res. 9:142–147.CrossRefGoogle Scholar
6. Shimabukuro, R.H. 1967. Atrazine metabolism and herbicidal selectivity. Plant Physiol. 42:1269–1276.Google Scholar
7. Wichman, J.R. and Byrnes, W.R. 1971. Inherent tolerance of black walnut and tulip poplar seedlings to soil-applied herbicides. Purdue Agr. Expt. Sta. Res. Bull. 878. 6 pp.Google Scholar