The effect of several cadmium compounds in soil on the metal content of unpolished rice
1991
Muramoto, S. (Okayama Univ., Kurashiki (Japan). Research Inst. for Bioresources) | Nishizaki, H. | Aoyama, I.
The metal uptake of rice plants grown on soil treated with twelve kinds of cadmium compounds was investigated at the cadmium concentration levels of polluted districts in Japan. There is a significant difference in cadmium content of unpolished rice between the soluble compounds and the insoluble ones. The cadmium contents of unpolished rice from soil treated with 50 ppm cadmium was in the following order of magnitude: cadmium chloride semipentahydrate, cadmium bromide tetrahydrate, cadmium acetate dehydrate, cadmium oxide, cadmium cyanide, cadmium hydroxide, cadmium sulfide, cadmium carbonate. The plants that were treated with cadmium iodide did not grow, because of root tissue damage due to the combined toxicity of cadmium and iodide ions
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