Soil-to-Plant Transfer of Radiocesium in Ipomoea aquatica

The effectiveness of the bio fertilizer regarding the growth promotion and radiocaesium (¹³⁷Cs) uptake was evaluated in Ipomoea aquatica. The growth of Ipomoea aquatica was enhanced with the application of bio fertilizer. The practice of bio fertilizer resulted in significant increase of ¹³⁷Cs concentration in all plant parts and higher ¹³⁷Cs transfer from soil to plants. TF values of ¹³⁷Cs ranged from 0.555 to 6.726 for the species. The plant roots possessed the lightest weight after being harvest, and show a highest ¹³⁷Cs concentration in plant roots. Ipomoea aquatica could be utilized for agricultural countermeasures and phyto remediation, to diminish the allocation of radiocaesium from soil to human. (author)