Abstract
We carried out a plant uptake and translocation experiment in which a wheat crop was grown on Yolo soil contaminated with 237Np, 238Pu, 239,240Pu, 241Am, and 244Cm. Studying pot-to-pot variability, we found the data a coefficient of variation of 21 percent. About 9 percent of this variability we ascribe to that of radioanalyses of the plant material. Both uptake and translocation of 238Pu and 239,240Pu were found to be identical. Likewise, both uptake and translocation of 241Am and 244Cm were identical. The Pu concentration was about 103 lower in the grain than in the bottom one-half of the stem plus leaves.
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