Copper Toxicity of the Cotton Plant in Solution Cultures1

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Abstract
Synopsis: 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 roo's; whereas, only small amounts were translocated to the leaves.

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