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Effects of 60Co Radiation on Herbicides in Aqueous Solution

Published online by Cambridge University Press:  12 June 2017

D.L. Bucholtz  and
T.L. Lavy
D.L. Bucholtz
Affiliation:
Univ. Nebraska, Loncoln, NB 68583
T.L. Lavy
Affiliation:
Univ. Nebraska, Loncoln, NB 68583
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Abstract

Phytotoxicity of herbicides in water was measured before and after exposure to gamma radiation from a 60Co irradiator. Chromatographic methods and bioassays were used to measure alterations that occurred during 60Co exposure. Phytotoxicity of picloram (4-amino-3,5,6-trichloropicolinic acid and trifluralin (α,α,α-trifluoro-2,6-dinitro-N,N-dipropyl-p-toluidine) solutions was reduced even with the lowest dose of 60Co, 1.7-megarad (Mrad). Alterations in phytotoxicity of atrazine (2-chloro-4-ethylamino-6-esopropylamino-s-triazine) and dicamba (3,6-dichloro-o-anisic acid) solution occurred only at 5 Mrad, which was the highest dose used. The phytotoxicity of atrazine solutons increased with the 5-Mrad irradiation. Thin layer chromatography (TLC) data showed that all herbicides were altered by 60Co irradiation. Several products resulted when trifluralin was irradiated.

Type
Research Article
Information
Weed Science , Volume 25 , Issue 3 , May 1977 , pp. 200 - 202
Copyright
Copyright © 1977 by the Weed Science Society of America 

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References

Literature Cited

1. American Society for Testing and Materials. 1965. Standard Method of Test for Absorbed Gamma Radiaiton Dose in the Fricke dosimeter. Book of ASTM Standards, Part 27. ASTM Designation D1671-63 529–531.Google Scholar
2. Horowitz, M. and Blumenfeld, T. 1973. Effect of gamma radiation on the bioactivity of herbicides. Weed Sci. 21:281–284.Google Scholar
3. Ionesou, S. 1968. Synthesis and decomposition induced by ionizing radiation. Pages 97–124. In IAEA, Radiation chemistry and its application. International Atomic Energy Agency. Vienna.Google Scholar
4. Ivie, G.W., Dorough, H.W., and Cardona, R.A. 1973. Photodecomposition of the herbicide methazole (Probe). J. Agric. Food Chem. 21:386–391.Google Scholar
5. Jordon, L.S., Mann, J.D., and Day, B.E. 1965. Effects of ultra-violet light on herbicides. Weeds 13:43–46.Google Scholar
6. Kung, Hung-Chun, Gaden, E. L. Jr., and King, C.G. 1953. Vitamins and enzymes in milk: effect of gamma radiation on activity. J. Agric. Food Chem. 1:142–144.Google Scholar
7. Lippold, P.C., Cleeve, J.S., Massey, L.M. Jr., Bourke, J.B., and Avens, A.W. 1969. Degradation of insecticides by Co-60 gamma radiation. J. Econ. Entomol. 62:1509–1510.Google Scholar
8. Mosier, A.R. and Guenzi, W.D. 1973. Picloram photolytic decomposition. J. Agric. Food Chem. 21:835–837.Google Scholar
9. Pape, B.E. and Zabik, M.J. 1972. Photochemistry of bioactive compounds solution-phase photochemistry of symmetrical triazines. J. Agric. Food Chem. 20:316–320.CrossRefGoogle Scholar
10. Pelczar, M.J. Jr. and Reid, R.D. 1965. Microbiology of air. Page 529 in Pelczar, M.J. Jr. and Reid, R.D. Microbiology. McGraw-Hill, Inc. New York.Google Scholar
11. Plimmer, J.R. 1973. The photodecomposition of herbicides, Residue Rev. 33:47–74. Springer-Verlag, New York.Google Scholar
12. Safe, S. and Hutzinger, D. 1973. Triazines. Pages 169–174 in Safe, S. and Hutzinger, D., CRC Mass Spectrometry of Pesticides and Pollutants. CRC Press, Cleveland, O.Google Scholar
13. Smith, G.N. 1968. Ultraviolet light decomposition studies of dursban and 3,5,6,-trichloro-2-pyridinol. J. Econ. Entomol. 61:793–799.Google Scholar