Cd and Co effects on the dynamics of Cs-137 accumulation by barley in ontogenesis

«Radiation and Risk», 2006, vol. 15, no. 3-4, pp.88-96


Arysheva S.P.
Russian Institute of Agricultural Radiology and Agroecology, Russian Academy of Agricultural Sciences, Obninsk.


The paper presents data from studying the influence of heavy metals on 137Cs accumulation in biomass and grain of spring barley, Elf variety. The presence in soil of Co and Cd at doses 20 and 25 times above the maximum permissible concentrations for soddy-podzolic medium loam soils is shown to reduce the radionuclide transfer to barley plants in ontogenesis. It has been found that at the early stages of barley development the inhibition value for 137Cs absorption rate due to application of heavy metals to the soil was slightly lower or comparable with the depressing effect of these chemical elements on the gain rate in plant biomass, which has caused a reduced transfer of the radionuclide with the barley yield.

Key words
Effect of heavy metals, accumulation of 137Cs, biomass, spring barley grain, maximum permissible concentrations, Co, Cd, radionuclide transfer to plants


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