Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-29T09:49:27.940Z Has data issue: false hasContentIssue false

Simazine Distribution and Degradation in Red Pine Seedlings

Published online by Cambridge University Press:  12 June 2017

P. S. Dhillon
Affiliation:
Community Development Counselling Service, Arlington, Virginia, and Professor of Forestry
W. R. Byrnes
Affiliation:
Community Development Counselling Service, Arlington, Virginia, and Professor of Forestry
C. Merritt
Affiliation:
Purdue University, Lafayette, Indiana

Abstract

Distribution and degradation of 2-chloro-4,6-bis(ethylamino)-s-triazine (simazine) at 5, 10, 15, and 20 ppmw in red pine (Pinus resinosa Ait.) seedlings were investigated using 14C-ring-labeled simazine dispersed in agar medium. Simazine readily entered red pine roots and moved rapidly into stem and needles. Accumulation was greatest in roots, next in stems, and least in needles. Significant differences in simazine uptake by roots were observed among concentrations between 5 and 20 ppmw in the incubation medium. Radiochromatographic scans revealed that a small amount of simazine was degraded to three unknown compounds by both fresh and boiled homogenates from whole plants, needles, stems, and roots. There were no observable differences in the amount of simazine degraded by homogenates of each separate plant part.

Type
Research Article
Copyright
Copyright © 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. Ahrens, J. F. 1964. Evaluation of herbicides for grass control in newly planted Christmas trees. Proc. NEWCC 18:220224.Google Scholar
2. Byrnes, W. R. 1960. Chemical weed and brush control. Amer. Christmas Tree Grower's J. 4:1316, 39.Google Scholar
3. Castelfranco, P., Foy, C. L., and Deutsch, D. B. 1961. Nonenzymic detoxication of 2-chloro-4,6-bis(ethylamino)-s-triazine by extracts of Zea mays . Weeds 9:580591.Google Scholar
4. Crafts, A. S. 1964. Herbicide behavior in the plant, p. 75110. In Audus, (ed.) The Physiology and Biochemistry of Herbicides. Acad. Press, New York.Google Scholar
5. Davis, D. E., Funderburk, H. H. Jr., and Sansing, N. G. 1959. The absorption and translocation of C-14 labeled simazine by corn, cotton, and cucumber. Weeds 7:300309.Google Scholar
6. Flanagan, T. R. and Hall, W. P. 1964. Chemical weed control in forest tree nursery stock. Proc. NEWCC 18:552556.Google Scholar
7. Gysin, H. and Knusli, E. 1960. Chemistry and herbicidal properties of triazine derivatives. Adv. Pest Control Res. 3:289358.Google Scholar
8. Hamilton, R. H. 1964. Tolerance of several grass species to 2-chloro-s-triazine herbicides in relation to degradation and content of benzoxazinone derivatives. J. Agr. Food Chem. 12:1417.Google Scholar
9. Hietala, P. K. and Virtanen, A. I. 1960. Precursors of benzoxazolinone in rye plants. II. Precursor I., the glucoside. Acta. Chem. Scand. 14:502504.Google Scholar
10. Honkanen, E. and Virtanen, A. I. 1960. The synthesis of precursor II of benzoxazolinone formed in rye plants and the enzymatic hydrolysis of precursor I. the glucoside. Acta. Chem. Scand. 14:504507.Google Scholar
11. Honkanen, E. and Virtanen, A. I. 1960. Synthesis of some 1,4-benzoxazine derivatives and their antimicrobial activity. Acta. Chem. Scand. 14:12141217.Google Scholar
12. Kozlowski, T. T. and Kuntz, J. E. 1963. Effect of simazine, atrazine, propazine, and eptam on growth and development of pine seedlings. Soil Sci. 95:164174.Google Scholar
13. Kuntz, J. E., Kozlowski, T. T., Hovind, J., and Bloomquist, W. 1960. Chemical weed control in forest plantings. Proc. NCWCC 17:1415.Google Scholar
14. Montgomery, M. and Freed, V. H. 1960. The metabolism of atrazine by expressed juice of corn. Res. Prog. Rept. WWCC p. 71.Google Scholar
15. Montgomery, M. and Freed, V. H. 1961. The uptake, translocation and metabolism of simazine and atrazine by corn plants. Weeds 9:231237.Google Scholar
16. Montgomery, M. and Freed, V. H. 1964. Metabolism of triazine herbicides by plants. J. Agr. Food Chem. 12:1114.Google Scholar
17. Ragab, M. T. and McCollum, J. P. 1961. Degradation of C-14 labeled simazine by plants and soil microorganisms. Weeds 9:7284.Google Scholar
18. Roth, W. 1957. Etude' comparee de la reaction du mais et du Ble a la simazine, substance herbicide. Comptes Rendus. L'Academie des Science 10:942944.Google Scholar
19. Roth, W. 1958. Substances regulatrices de la croissance vegetale. Etude de Taction de la simazine sur la physiologie d'Elodea. Experientia 14:137138.Google Scholar
20. Virtanen, A. I. and Hietala, P. K. 1960. Precursors of benzoxazolinone in rye plant. I, precursor II. the aglucone. Acta. Chem. Scand. 14:499502.Google Scholar
21. White, G. 1962. Chemical weed control as a planting operation. J. For. 60:256.Google Scholar
22. Winget, C. H., Kozlowski, T. T., and Kuntz, J. E. 1962. Effects of herbicides on red pine nursery stock. Weeds 11:8790.Google Scholar