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The Interaction of Atrazine and EPTC on Navy Bean

Published online by Cambridge University Press:  12 June 2017

Donald L. Wyse
Affiliation:
Dep. Crop and Soil Sci., Michigan State Univ., E. Lansing, MI 48824
William F. Meggitt
Affiliation:
Dep. Crop and Soil Sci., Michigan State Univ., E. Lansing, MI 48824
Donald Penner
Affiliation:
Dep. of Agron. and Plant Genetics, Univ. of Minnesota, St. Paul, MN 55101

Abstract

Navy bean (Phaseolus vulgaris L.) treated with the combination of EPTC (S-ethyl dipropylthiocarbamate) and atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] developed more chlorosis of the leaves than beans treated with atrazine alone. Navy bean yields in field studies in 1972, were reduced 39% when grown in the presence of 0.55 kg/ha of atrazine and 3.4 kg/ha of EPTC, whereas the single application of either herbicide reduced yields 0 to 14%, respectively. In 1973, atrazine at 0.28 kg/ha did not significantly reduce yields, but combinations of 0.28 kg/ha of atrazine plus 2.2, 3.4, and 4.5 kg/ha of EPTC, reduced yields 40, 30, and 62% respectively. The combination of atrazine and EPTC also reduced plant weight and delayed flower and pod development. EPTC was found to increase wind blast damage under conditions of low relative humidity, high winds, and limited soil moisture. EPTC at 2.2, 3.4, and 4.5 kg/ha reduced the chloroform-soluble leaf extract from the surface of leaves and scanning electron micrographs confirmed that EPTC at 10-6 M altered leaf surface waxes. EPTC at 10-5 and 10-6 M increased the transpiration rate of plants. Increased uptake of 14C-atrazine from solution was associated with increased transpiration.

Type
Research Article
Copyright
Copyright © 1976 by the Weed Science Society of America 

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References

Literature Cited

1. Buchholtz, K.P. 1965. Factors influencing oat injury from triazine residues in soil. Weeds 13:362367.CrossRefGoogle Scholar
2. Burnside, O.C., Fenster, C.R., and Wicks, G.A. 1963. Dissipation and leaching of monuron, simazine, and atrazine in Nebraska soils. Weeds 11:209213.Google Scholar
3. Burnside, O.C., Fenster, C.R., Wicks, G.A., and Drew, J.V. 1969. Effect of soil and climate on herbicide dissipation. Weed Sci. 17:241245.Google Scholar
4. Dawson, J.H. 1963. Development of barnyardgrass seedlings and their response to EPTC. Weeds 11:6066.CrossRefGoogle Scholar
5. Dowler, C.C., Forestier, W., and Tschirley, F.H. 1968. Effects and persistence of herbicides applied to soil in Puerto Rican forests. Weed Sci. 16:4550.CrossRefGoogle Scholar
6. Duke, W.B., Rao, V.S., and Hunt, J.F. 1972. EPTC-atrazine residue interaction effect on seedling alfalfa varieties. Proc. Northeast. Weed Sci. Soc. 26:258262.Google Scholar
7. Fenster, C.R., Burnside, O.C., and Wicks, G.A. 1965. Chemical fallow studies in winter wheat fallow rotations in western Nebraska. Agron. J. 57:469470.Google Scholar
8. Gentner, W.A. 1966. The influence of EPTC on external wax disposition. Weeds 14:2731.Google Scholar
9. Harris, C.I. and Sheets, T.J. 1965. Persistence of several herbicides in the field. Proc. Northeast. Weed Contr. Conf. 19:359.Google Scholar
10. Harris, C.I., Woolson, E.A., and Hummer, B.E. 1969. Dissipation of herbicides at three soil depths. Weed Sci. 17:2731.Google Scholar
11. Sheets, T.J. 1961. Uptake and distribution of simazine by oat and cotton seedlings. Weeds 9:13.CrossRefGoogle Scholar
12. Sikka, H.C. and Davis, D.E. 1966. Dissipation of atrazine from soil by corn, sorghum, and johnsongrass. Weeds 14:289293.Google Scholar
13. Still, G.G., Davis, D.G., and Zander, G.L. 1970. Plant epicuticular lipids: Alteration by herbicidal carbamates. Plant Physiol. 46:307314.Google Scholar
14. Talbert, R.E. and Fletchall, O.H. 1964. Inactivation of simazine and atrazine in the field. Weeds 12:3337.Google Scholar
15. Vostral, H.J., Buchholtz, K.P., and Kust, C.A. 1970. Effect of root temperature on absorption and translocation of atrazine soybeans. Weed Sci. 18: 115117.Google Scholar
16. Wang, C.H. and Willis, D.L. 1965. Radiotracer Methodology in Biological Science. Prentice-Hall, Inc. N.J. 363 pp.Google Scholar