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This article in AJ

  1. Vol. 49 No. 4, p. 206-207
    Received: Oct 24, 1956

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Copper Toxicity of the Cotton Plant in Solution Cultures1

  1. W. F. Sowell,
  2. R. D. Rouse and
  3. John I. Wear2



Cotton plants growing in solution culture containing a copper concentration of 0.8 ppm. or higher developed toxicity symptoms consisting of a darkened root system and loss of turgidity in the aerial parts. A copper concentration of 0.4 ppm. produced no toxic effects.

Copper accumulated in high amounts in the tip and mid portions of the roots; whereas, only small amounts were translocated to the leaves.

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