›› 2011, Vol. 23 ›› Issue (2): 0-247.

• 作物科学 •    

盐分胁迫对大麦幼苗生理指标的影响

乔海龙,陈和*,陈健,沈会权,陈晓静,陶红,臧慧   

  1. 江苏沿海地区农业科学研究所,江苏 盐城 224002
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-03-25 发布日期:2011-03-25

Effect of salinity stress on the physiological indexes of barley seedlings

QIAO Hai-long;CHEN He*;CHEN Jian;SHEN Hui-quan;CHEN Xiao-jing;TAO Hong;ZANG Hui   

  1. Institute of Agricultural Sciences in the Coastal Area in Jiangsu, Yancheng 224002, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-03-25 Published:2011-03-25

摘要: 文章对盐胁迫下大麦幼苗生理指标进行了分析研究。结果表明,随NaCl浓度的升高,大麦茎叶中可溶性糖、脯氨酸含量增高,K+/Na+降低;大麦茎叶中脯氨酸含量随NaCl浓度升高呈倍数升高,在0.6% NaCl胁迫下,‘CM72’脯氨酸含量最高达1.526 μmol·g-1。在同一NaCl浓度下,不同大麦品种间可溶性糖、脯氨酸含量及K+/Na+差异明显,‘CM72’渗透物质合成能力最强,耐盐性较好,‘泰兴9425’和‘苏啤3号’次之。

关键词: 大麦, 盐胁迫, 生理指标

Abstract: Effect of salinity stress on the physiological indexes of barley seedlings was studied. The results showed that the content of soluble sugar and proline in barley shoot increased, and the rate of K+/Na+decreased with increasing of NaCl concentration. The proline content of CM72 was 1.526 μmol·g-1 under 0.6% NaCl stress. There were some differences in soluble sugar content, proline content and the rate of K+/Na+among different barley cultivars under the same concentration of NaCl. With the high synthetic capability to osmotic compounds, CM72 showed great tolerance to salinity stress, Taixing 9425 and Supi 3 followed with it.

Key words: barley, salinity stress, physiological indexes