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Effects of Atrazine and Hydroxyatrazine on Nitrogen Metabolism of Selected Species

Published online by Cambridge University Press:  12 June 2017

E. F. Eastin  and
D. E. Davis
E. F. Eastin
Affiliation:
Auburn University, Auburn, Alabama Mississippi State University, State College, Mississippi
D. E. Davis
Affiliation:
Auburn University, Auburn, Alabama
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Abstract

In field, soil culture, and nutrient culture experiments, 2-chloro-4-ethylamino-6-isopropylamino-s-triazine (atrazine) increased percent total nitrogen in all species studied, whether resistant, intermediate, or susceptible to 1 lb/A of atrazine. However, nitrogen content per plant was either unaffected or decreased by these atrazine treatments. One lb/A of atrazine increased percent protein and nitrate nitrogen in most species studied. Atrazine susceptibility apparently was related to its effect on percent non-protein and ammonia in the species tested. One lb/A of atrazine had no effect on percent non-protein nitrogen and decreased percent ammonia nitrogen in resistant species but increased both fractions in intermediate and susceptible species. One lb/A of 2-hydroxy-4-ethylamino-6-isopropylamino-s-triazine (hereafter referred to as hydroxyatrazine), a degradation product of atrazine, had no consistent effect on any nitrogen fraction studied.

Type
Research Article
Information
Weeds , Volume 15 , Issue 4 , October 1967 , pp. 306 - 309
Copyright
Copyright © 1967 Weed Science Society of America 

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References

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