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中国农学通报

中国农学通报 ›› 2017, Vol. 33 ›› Issue (17): 76-81.doi: 10.11924/j.issn.1000-6850.casb17010090

所属专题： 水稻

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

镉胁迫下不同水稻品种镉的累积与产量差异比较

王 刚1,2,3,4,孙梦飞1,2,3,4,钟雪梅1,2,3,4,彭建伟1,2,3,4,荣湘民1,2,3,4,康兴蓉1,2,3,4,谢桂先1,2,3,4,张玉平1,2,3,4   

  1. (1湖南农业大学资源环境学院,长沙 410128；2农田污染控制与农业资源利用湖南省重点实验室,长沙 410128；3植物营养湖南省普通高等学校重点实验室,长沙 410128；4土壤肥料资源高效利用国家工程实验室,长沙 410128）
  • 收稿日期:2017-01-17 修回日期:2017-02-15 接受日期:2017-02-16 出版日期:2017-06-16 发布日期:2017-06-16
  • 通讯作者: 彭建伟
  • 基金资助:
    湖南省科技计划项目“流域农业面源污染迁移转化过程与机理”(2016JC2032)。

Cadmium Accumulation and Yield Difference of Different Rice Varieties Under Cadmium Stress

Wang Gang1,2,3,4, Sun Mengfei1,2,3,4, Zhong Xuemei1,2,3,4, Peng Jianwei1,2,3,4, Rong Xiangmin1,2,3,4, Kang Xingrong1,2,3,4, Xie Guixian1,2,3,4, Zhang Yuping1,2,3,4   

  1. (1College of Resources and Environment, Hunan Agricultural University, Changsha 410128; 2Hunan Provincial Key Laboratory of Farmland Pollution Control and Agricultural Resources Use, Changsha 410128; 3Hunan Provincial Key Laboratory of Plant Nutrition in Common University, Changsha 410128; 4National Engineering Laboratory on Soil and Fertilizer Resources Efficient Utilization, Changsha 410128)
  • Received:2017-01-17 Revised:2017-02-15 Accepted:2017-02-16 Online:2017-06-16 Published:2017-06-16

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摘要： 探讨在镉(Cd)胁迫下水稻植株内的镉含量，以及水稻不同部位镉累积情况，筛选出高耐镉性且高产的水稻品种。以不同粳稻和籼稻品种为研究对象，通过盆栽试验，在不加镉与镉胁迫2种处理下，探讨不同水稻品种收获期的Cd含量，Cd累积情况。2种处理下水稻体内镉含量大致都为根＞茎＞叶＞谷壳＞籽粒，且镉主要集中在根部；镉在不同水稻品种内的累积与分布存在差异，尤其是镉在籽粒中的累积差异较大，8个中稻品种中籽粒镉含量以品种‘春优84’的增加幅度最低，表现出较低的镉累积能力；同时也表明镉胁迫下粳稻镉累积量高于籼稻；在镉胁迫处理下籼稻产量显著减少，而粳稻产量均增加。‘春优84’籽粒镉含量增幅最低，表现出显著的耐镉性，虽其产量有所影响，但从镉安全性考虑，可作为湖南省镉污染区域推广品种选用。

关键词: 玉树, 玉树, 辐射, 高寒湿地

Abstract: Abstract:【Research objectives】Study on Cd content in rice plants and Cd accumulation in different parts of rice under the Cd stress, to select out high Cd resistance and high-producing rice varieties.【Method】Take different varieties of japonica and indica rices as the research objects, by pot experiment, under two treatments of no adding Cd and Cd stress, discuss Cd content and Cd accumulation situation of different rice varieties in harvest time.【Consequence】Under the situation of no adding Cd and Cd stress treatment, Cd content in rice plant is generally Root>stem>leaf>the chaff>rice, and the Cd mainly concentrated in roots; varieties of Cds have differences in rice plants’ accumulation and distribution, especially the greater Cd accumulation in rice. Among 8 semilate rice varieties, the lowest increasing degree of Cd content is “Spring 84”, which shows a bit lower Cd accumulation ability; at the same time, it shows that under the Cd stress , japonica Cd accumulation is higher than nonglutinous rice. In terms of production, the production of indica reduced rapidly under the Cd stress,however, the japonica rices’ production all increased. 【Conclusion】Under the Cd stress,“Spring 84”has the lowest grains’ Cd content amplification, and it shows significantly Cd tolerance. Although its production has been influenced, from the security of cadmium, it can be used as a selection of Hunan Province’s Cd pollution regional varieties to be spread.