Varietal difference in radiocesium uptake and transfer from radiocesium deposited soils in the genus Amaranthus |
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| Authors: | Takuro Shinano Toshihiro Watanabe Qingnan Chu Mitsuru Osaki Daisuke Kobayashi Toshiyasu Okouchi |
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| Institution: | 1. Agricultural Radiation Research Center, NARO Tohoku Agricultural Research Center, Fukushima, Japanshinano@affrc.go.jp;3. Graduate School of Agriculture, Hokkaido University, Sapporo 0608589, Japan;4. School of Medicine, Fukushima Medical University, Fukushima, Japan |
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| Abstract: | AbstractWithin Amaranthaceae, 33 different varieties, including local varieties from Japan, were grown in 2012 in a field in the town of Iino in the Fukushima prefecture, which is located approximately 51 km north of Tokyo Electric Power Company, Fukushima Daiichi Nuclear Power Plant (FDNPP). The contamination level of the soil was 2770 ± 140 Bq kg?1 dry weight (134Cesium (Cs) + 137Cs, average ± SE), and the field was also cultivated in 2011. There was a significant varietal difference in the dry weight production, radiocesium accumulation and transfer factor (TF) of radiocesium from the soil to the plant. The ratio of the lowest TF to the highest TF was approximately 3. Because the ratio of 137Cs to 133Cs was significantly positive, radiocesium seems to be absorbed in a manner similar to that of 133Cs. It is suggested that the varietal difference in the behavior of radiocesium uptake mainly depends on its genetic background rather than on environmental factors. |
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| Keywords: | Amaranthaceae radiocesium screening transfer factor |
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