Radiocaesium accumulation in rice cultivars in a low-potassium paddy field in Fukushima
The accumulation of radiocaesium in the grains of 15 rice cultivars was monitored in 2014 and 2015. The study area was a local paddy field with low soil potassium concentrations, where highly radiocaesium contaminated rice had been commercially harvested because of the Fukushima Daiichi Nuclear Powe...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2021-10-01
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| Series: | Plant Production Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/1343943X.2021.1886590 |
| _version_ | 1819198401846181888 |
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| author | Siyu Gong Hideki Ishii Keisuke Nemoto |
| author_facet | Siyu Gong Hideki Ishii Keisuke Nemoto |
| author_sort | Siyu Gong |
| collection | DOAJ |
| description | The accumulation of radiocaesium in the grains of 15 rice cultivars was monitored in 2014 and 2015. The study area was a local paddy field with low soil potassium concentrations, where highly radiocaesium contaminated rice had been commercially harvested because of the Fukushima Daiichi Nuclear Power Plant accident. The concentrations of radiocaesium in the resulting brown rice were all high, ranging from 150 to 960 Bq kg−1 (decay-corrected to December 2011), and the transfer factors were approximately 10- to 25-fold higher than those of previous studies. In this study, the trend of radiocaesium accumulation in each of the improved indica, aus, and japonica cultivars became clear, whereas none of the previous studies showed a clear trend in each cultivar group. The high radiocaesium accumulation in improved indica cultivars (e.g. Takanari) should be taken into account when considering the expansion of rice cultivation for processing and forage. |
| first_indexed | 2024-12-23T02:59:52Z |
| format | Article |
| id | doaj.art-4ae4081503f54a3bb31463362ac28540 |
| institution | Directory Open Access Journal |
| issn | 1343-943X 1349-1008 |
| language | English |
| last_indexed | 2024-12-23T02:59:52Z |
| publishDate | 2021-10-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Plant Production Science |
| spelling | doaj.art-4ae4081503f54a3bb31463362ac285402022-12-21T18:02:28ZengTaylor & Francis GroupPlant Production Science1343-943X1349-10082021-10-0124453053510.1080/1343943X.2021.18865901886590Radiocaesium accumulation in rice cultivars in a low-potassium paddy field in FukushimaSiyu Gong0Hideki Ishii1Keisuke Nemoto2The University of TokyoFukushima UniversityThe University of TokyoThe accumulation of radiocaesium in the grains of 15 rice cultivars was monitored in 2014 and 2015. The study area was a local paddy field with low soil potassium concentrations, where highly radiocaesium contaminated rice had been commercially harvested because of the Fukushima Daiichi Nuclear Power Plant accident. The concentrations of radiocaesium in the resulting brown rice were all high, ranging from 150 to 960 Bq kg−1 (decay-corrected to December 2011), and the transfer factors were approximately 10- to 25-fold higher than those of previous studies. In this study, the trend of radiocaesium accumulation in each of the improved indica, aus, and japonica cultivars became clear, whereas none of the previous studies showed a clear trend in each cultivar group. The high radiocaesium accumulation in improved indica cultivars (e.g. Takanari) should be taken into account when considering the expansion of rice cultivation for processing and forage.http://dx.doi.org/10.1080/1343943X.2021.1886590caesiumcultivarfukushimarice |
| spellingShingle | Siyu Gong Hideki Ishii Keisuke Nemoto Radiocaesium accumulation in rice cultivars in a low-potassium paddy field in Fukushima Plant Production Science caesium cultivar fukushima rice |
| title | Radiocaesium accumulation in rice cultivars in a low-potassium paddy field in Fukushima |
| title_full | Radiocaesium accumulation in rice cultivars in a low-potassium paddy field in Fukushima |
| title_fullStr | Radiocaesium accumulation in rice cultivars in a low-potassium paddy field in Fukushima |
| title_full_unstemmed | Radiocaesium accumulation in rice cultivars in a low-potassium paddy field in Fukushima |
| title_short | Radiocaesium accumulation in rice cultivars in a low-potassium paddy field in Fukushima |
| title_sort | radiocaesium accumulation in rice cultivars in a low potassium paddy field in fukushima |
| topic | caesium cultivar fukushima rice |
| url | http://dx.doi.org/10.1080/1343943X.2021.1886590 |
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