Interception of wet deposited and transfers of radiocaesium and radiostrontium byBrássica napusL. andTríticum aestívumL.

Abstract

Abstract. The aim of this study is to assess the interception and transfer to edible part of wet deposited 134 Cs and 85 Sr to spring oilseed rape and spring wheat and the dependency of the intercepted fraction on the development stage e.g. the total plant biomass. The radionuclides, 134 Cs and 85 Sr, were deposited at six different development stages using a rainfall simulator. The results showed that there was a positive correlation between the interception fraction for 134 Cs and 85 Sr and the biomass both for spring oilseed rape and spring wheat. The interception fraction and transfer factors were highest at growing stage of senescence (ripening) for both crops.