ACTA AGRICULTURAE BOREALI-SINICA ›› 2012, Vol. 27 ›› Issue (6): 118-124. doi: 10.3969/j.issn.1000-7091.2012.06.024

Special Issue: Wheat

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Effects of Heavy Metal Stress on Gorwth and Grain Yied of Wheat

NIE Sheng-wei1, HUANG Shao-min1, ZHANG Shui-qing1, GUO Dou-dou1, ZHANG Qiao-ping2, CHENG Xiu-zhou3   

  1. 1. National Soil Fertility and Fertilizer Effects Long-term Monitoring Net Work-Zhengzhou Fluvo-aquic Station, Key Field Scientific Observation Station of Zhengzhou Fluvo-aquic Soils Ecology Environment, Ministry of Agriculture, Institute of Plant Nutrient and Environmental Resources, Henan Academy of Agricultural Science, Zhengzhou 450002, China;
    2. College of Life Sciences, Henan Agriculture University, Zhengzhou 450002, China;
    3. Extensive Centre for Agricultural Techniques of Huangchuan County, Huangchuan 465150, China
  • Received:2012-08-08 Published:2012-12-28

Abstract: The plant height, spike length and grain yield of wheat varieties Zhengmai 9023 and Xiaoyan 22 were analyzed under the stress of heavy metals Cd,Pb,As,Hg,and Cr in field conditions. The results showed that the spike length of Zhengmai 9023 decreased under the stress of Cd,Pb,As,Hg and Cr,and the similar results in Xiaoyan 22 were also found under the stress of Cd,As and Cr. The plant height of Xiaoyan 22 reduced under the stress of Cd,Pb,As,Hg and Cr,but it increased in Zhengmai 9023 under the stress of As and Hg. The plant height increased with the higher dose of Cd and /or Pb and decreased with the lower dose of Cd and /or Pb,but showed a reverse trend under Cr stress. In addition, the grain yield of the two varieties was significantly lower under Cr stress than CK,but was higher under Cd,Pb,As and Hg stress. The yield threshold value of As,Cd,Cr,Hg and Pb was 53. 42,1 . 31,749. 73,7. 43,555. 57 mg /kg for Zhengmai 9023 respectively,and 42. 58,1. 80,828. 18,10. 30, 437. 01 mg /kg for Xiaoyan 22 respectively.

Key words: Heavy metal, Wheat, Growing facter, Effect, Threshold value

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Cite this article

NIE Sheng-wei, HUANG Shao-min, ZHANG Shui-qing, GUO Dou-dou, ZHANG Qiao-ping, CHENG Xiu-zhou. Effects of Heavy Metal Stress on Gorwth and Grain Yied of Wheat[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2012, 27(6): 118-124. doi: 10.3969/j.issn.1000-7091.2012.06.024.

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