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Activity of Triclopyr Herbicide Enhanced by Combination with Cobalt Chloride or Ammonium Nitrate

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Abstract.

Cobalt chloride at a rate of 16 oz/acre when combined with the auxin herbicide triclopyr at 1 oz/acre synergistically enhanced the activity of the herbicide. A similar response was elicited by the addition of ammonium nitrate. Mg2+ or Mn2+ was antagonistic. The enhancement of activity by Co2+ or NH+ 4 appeared not to be the result of a simple enhancement of triclopyr uptake by the cations. Triclopyr uptake, as determined by gas chromatography/microwave-induced plasma/chemical reaction interface mass spectroscopy, was unaffected by the cation additions.

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Authors and Affiliations

  1. Department of Medicinal Chemistry, Purdue University, West Lafayette, IN 47907, USA, , , , , , US

    D. J. Morré & J. Lawrence

  2. Department of Chemistry and Biochemistry, the University of Texas at Austin, Austin, TX 78712, USA, , , , , , US

    J. T. Morré & M. Moini

Authors
  1. D. J. Morré
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  2. J. T. Morré
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  3. J. Lawrence
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  4. M. Moini
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Received March 31, 1997; accepted March 24, 1998

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Morré, D., Morré, J., Lawrence, J. et al. Activity of Triclopyr Herbicide Enhanced by Combination with Cobalt Chloride or Ammonium Nitrate. J Plant Growth Regul 17, 125–129 (1998). https://doi.org/10.1007/PL00007025

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  • DOI: https://doi.org/10.1007/PL00007025

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