| 不同水稻品种的镉吸收特性 |
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| 引用本文： | 毛亚西,符建荣,马军伟,邹平,雷廷海,李欢,李袁玮,黄益孝,王玲莉.不同水稻品种的镉吸收特性[J].浙江农业学报,2018,30(5):695. |
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| 作者姓名： | 毛亚西 符建荣 马军伟 邹平 雷廷海 李欢 李袁玮 黄益孝 王玲莉 |
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| 作者单位： | 1.浙江农林大学 环境与资源学院,浙江 杭州 311300; 2.浙江省农业科学院 环境资源与土壤肥料研究所,浙江 杭州 310021 |
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| 基金项目： | 浙江省国土资源厅项目(2014002-01); 浙江省重点研发项目(2015C03020); 国家重点研发计划(2016YFD201007) |
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| 摘 要： | 选取浙江省绍兴、宁海、温岭三地,通过镉胁迫试验,研究4个水稻品种甬优538、春优84、嘉禾218和秀水134镉吸收积累特性。结果表明:4个水稻品种均表现出Cd低积累的特性,甬优538、春优84、嘉禾218、秀水134稻米Cd含量开始超标时所对应的处理中土壤Cd浓度分别为>1.41、1.41、0.91、0.52 mg·kg-1。4个水稻品种稻米中的Cd含量与土壤Cd全量之间的关系可用直线回归方程拟合。不同水稻品种安全生产的土壤Cd临界值表现为甬优538>春优84>嘉禾218>秀水134,按土壤类型表现为黏质脱潜水稻土>涂泥渗育水稻土>涂泥潴育水稻土。试验所得水稻安全生产土壤Cd临界值略高于现行的土壤环境质量标准(GB 15618—1995)。
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| 关 键 词： | 农产品安全 重金属 品种 水稻 |
| 收稿时间： | 2017-08-07 |
Cadmium uptake characteristics of different rice cultivars |
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| MAO Yaxi,FU Jianrong,MA Junwei,ZOU Ping,LEI Tinghai,LI Huan,LI Yuanwei,HUANG Yixiao,WANG Lingli.Cadmium uptake characteristics of different rice cultivars[J].Acta Agriculturae Zhejiangensis,2018,30(5):695. |
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| Authors: | MAO Yaxi FU Jianrong MA Junwei ZOU Ping LEI Tinghai LI Huan LI Yuanwei HUANG Yixiao WANG Lingli |
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| Institution: | 1. School of Environmental and Resource Sciences, Zhejiang A & F University, Hangzhou 311300, China;;
2. Institute of Environment, Resource, Soil and Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China |
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| Abstract: | The cadmium (Cd) absorption and accumulation characteristics of four rice varieties, i.e. Yongyou 538, Chunyou 84, Jiahe 218 and Xiushui 134 were studied by Cd stress experiment in paddy fields in Shaoxing, Ninghai and Wenling, Zhejiang Province. It was shown that four rice varieties possessed Cd low accumulation characteristics in rice grain. When Cd concentration in rice grain in Yongyou 538, Chunyou 84, Jiahe 218 and Xiushui 134 was above 0.2 mg·kg-1, the corresponding soil Cd concentrations in treatments were >1.41, 1.41, 0.91, 0.52 mg·kg-1, respectively. The linear regression equation could be used to fit the relationship between Cd content in rice grain and the total Cd concentration in paddy soils. Under rice safe production, the order of the threshold value of the Cd concentration in paddy soil of four rice varieties was as Yongyou 538>Chunyou 84>Jiahe 218>Xiushui 134, and the order of the threshold value of the Cd concentration in paddy soil of different soil types was as clay degleyic paddy soil>tidal mud percolating paddy soil>tital mud redoximorphic paddy soil. In this study, the critical value of soil Cd concentration under rice safe production was higher than that of the current national soil environmental quality standard (GB 15618—1995). |
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| Keywords: | agro-products safety heavy metal variety rice |
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