Journal of Integrative Agriculture ›› 2014, Vol. 13 ›› Issue (3): 547-553.DOI: 10.1016/S2095-3119(13)60711-X

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Effect of Biochar on Relieving Cadmium Stress and Reducing Accumulation in Super japonica Rice

 ZHANG Zhen-yu, MENG Jun, DANG Shu , CHEN Wen-fu   

  1. 1、Liaoning Biochar Engineering & Technology Research Center, Shenyang 110866, P.R.China
    2、Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/Key Laboratory of Northern Japonica Super Rice Breeding, Ministry of Education/Rice Research Institute, Shenyang Agricultural University, Shenyang 110866, P.R.China
  • 收稿日期:2013-10-09 出版日期:2014-03-01 发布日期:2014-03-12
  • 通讯作者: CHEN Wen-fu, E-mail: wfchen5512@163.com
  • 作者简介:ZHANG Zhen-yu, Mobile: 15754540118, E-mail: zhangzhenyu1982@126.com
  • 基金资助:

    This study was supported by the National Natural Science Foundation of China (41201317), the Key Technologies R&D Program of China during the 12th Five-Year Plan period (2012BAD14B01), the Liaoning Science & Technology Project and the Key Platform Construction Plan for Science & Technology in Universities of Liaoning Province, China.

Effect of Biochar on Relieving Cadmium Stress and Reducing Accumulation in Super japonica Rice

 ZHANG Zhen-yu, MENG Jun, DANG Shu , CHEN Wen-fu   

  1. 1、Liaoning Biochar Engineering & Technology Research Center, Shenyang 110866, P.R.China
    2、Key Laboratory of Rice Biology and Breeding, Ministry of Agriculture/Key Laboratory of Northern Japonica Super Rice Breeding, Ministry of Education/Rice Research Institute, Shenyang Agricultural University, Shenyang 110866, P.R.China
  • Received:2013-10-09 Online:2014-03-01 Published:2014-03-12
  • Contact: CHEN Wen-fu, E-mail: wfchen5512@163.com
  • About author:ZHANG Zhen-yu, Mobile: 15754540118, E-mail: zhangzhenyu1982@126.com
  • Supported by:

    This study was supported by the National Natural Science Foundation of China (41201317), the Key Technologies R&D Program of China during the 12th Five-Year Plan period (2012BAD14B01), the Liaoning Science & Technology Project and the Key Platform Construction Plan for Science & Technology in Universities of Liaoning Province, China.

摘要: It is of great importance to solve the threats induced by cadmium pollution on crops. This paper examined the effect of biochar on cadmium accumulation in japonica rice and revealed the mechanism underlying the response of protective enzyme system to cadmium stress. Biochar derived from rice straw was applied at two application rates under three cadmium concentrations. Shennong 265, super japonica rice variety, was selected as the test crop. The results indicated that cadmium content in above-ground biomass of rice increased with increasing soil cadmium concentrations, but the biochar application could suppress the accumulation of cadmium to some extent. Under high concentrations of cadmium, content of free proline and MDA (malondialdehyde) were high, so did the SOD (superoxide dismutase), POD (peroxidase) and CAT (catalase) activity in the flag leaf of rice. However, the protective enzyme activities remained at low level when biochar was added.

关键词: super japonica rice , biochar , cadmium stress , cadmium accumulation

Abstract: It is of great importance to solve the threats induced by cadmium pollution on crops. This paper examined the effect of biochar on cadmium accumulation in japonica rice and revealed the mechanism underlying the response of protective enzyme system to cadmium stress. Biochar derived from rice straw was applied at two application rates under three cadmium concentrations. Shennong 265, super japonica rice variety, was selected as the test crop. The results indicated that cadmium content in above-ground biomass of rice increased with increasing soil cadmium concentrations, but the biochar application could suppress the accumulation of cadmium to some extent. Under high concentrations of cadmium, content of free proline and MDA (malondialdehyde) were high, so did the SOD (superoxide dismutase), POD (peroxidase) and CAT (catalase) activity in the flag leaf of rice. However, the protective enzyme activities remained at low level when biochar was added.

Key words: super japonica rice , biochar , cadmium stress , cadmium accumulation