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The Leaf Concentrations of Atrazine in Cereal Crops as Related to Tolerance

Published online by Cambridge University Press:  12 June 2017

Heijia L. Wheeler
Affiliation:
Department of Botany, the Pennsylvania State University, University Park, Pennsylvania 16802
Robert H. Hamilton
Affiliation:
Department of Botany, the Pennsylvania State University, University Park, Pennsylvania 16802

Abstract

Seedlings of wheat (Triticum aestivum L.), corn (Zea mays L.), and sorghum (Sorghum vulgare Pers.) were exposed to 2-chloro-4-ethylamino-6-isopropylamino-s-triazine (atrazine) in solution culture. Following prolonged treatment, the tolerant species, corn and sorghum, accumulated leaf concentrations of unaltered atrazine which were comparable to those found in the sensitive species at the point of acute toxicity. In the sensitive species, wheat, there did not seem to be a critical leaf concentration of atrazine which was necessary to bring about acute toxicity. The leaf concentration in wheat could be raised by increasing the concentration of atrazine in the nutrient solution or by lowering the temperature at which the plants were grown. The loss of chlorophyll in sensitive species was closely related to and preceded acute toxicity symptoms.

Type
Research Article
Copyright
Copyright © 1968 Weed Science Society of America 

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References

Literature Cited

1. Arnon, D. I. 1949. Copper enzymes in isolated chloroplasts. Polyphenol oxidase in Beta vulgaris . Plant Physiol. 24:115.Google Scholar
2. Burchfield, H. P. and Storrs, Eleanor. 1962. Biochemical applications of gas chromatography. Academic Press, New York. 680 p.Google Scholar
3. Castelfranco, P., Foy, C. L., and Deutsch, Deborah B. 1961. Nonenzymatic detoxification of 2-chloro-4,6-bas (ethylamino)-s-triazine (Simazine) by extracts of Zea mays . Weeds 9:580591.Google Scholar
4. Davis, D. E., Funderburk, H. H. Jr., and Sansing, N. G. 1959. The absorption and translocation of C14 labeled simazine by corn, cotton, and cucumber. Weeds 7:300309.Google Scholar
5. Funderburk, H. H. Jr. and Davis, D. E. 1963. The metabolism of C14 chain- and ring-labeled simazine by corn, and the effects of atrazine on plant respiratory systems. Weeds 11:101104.Google Scholar
6. Hamilton, R. H. and Moreland, D. E. 1962. Simazine: Degradation by corn seedlings. Science 135:373374.Google Scholar
7. 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
8. Moreland, D. E. and Hill, K. L. 1962. Interference of herbicides with the Hill reaction of isolated chloroplasts. Weeds 10:229236.Google Scholar
9. Moreland, D. E., Gentner, W. A., Hilton, J. L., and Hill, K. L. 1959. Studies on the mechanism of herbicidal action of 2-chloro-4,6-bis (ethylamino)-s-triazine. Plant Physiol. 34:432435.CrossRefGoogle ScholarPubMed
10. Negi, W. S., Funderburk, H. H. Jr. and Davis, D. E. 1964. Metabolism of atrazine by susceptible and resistant plants. Weeds 12:5357.Google Scholar
11. Roth, W. and Knusli, E. 1961. Beitrag zur Kenntnis der Resistenz-phänomene einzelner Pflanzen gegenüber dem phytotoxischen Wirkstoff Simazin. Experientia 17:312313.Google Scholar
12. Zweig, G. 1964. Anal. Methods for Pesticides, Plant Growth Regulators and Food Additives. Vol. 4, Academic Press, New York. 269 p.Google Scholar