MOVEMENT OF CADMIUM AND WATER IN SPLIT-ROOT WHEAT PLANTS

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Abstract
Wheat (T. aestivum L. em. Thell ''Osage'') was grown with roots split between soil that had no added Cd and was not watered and a nutrient solution that contained 1 .mu.g/m of Cd, to see if Cd ions and water would be transferred from the nutrient-solution side of the root system to the soil side. Roots in soil had about 25 times more Cd than those of plants with roots split between soil and nutrient solution without Cd. The soil remained saturated during the 50-day experiment, even though no water was added to the soil. Ions were transferred from the roots in the solution with Cd ions into the roots in soil not containing the ions, and water was transferred from nutrient solution into the soil.
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