| NaCl胁迫对黄瓜幼苗生长及抗氧化系统的影响 |
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| 引用本文： | 王丽萍,崔美香,孟艳玲.NaCl胁迫对黄瓜幼苗生长及抗氧化系统的影响[J].西北农业学报,2007,16(4):170-173. |
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| 作者姓名： | 王丽萍 崔美香 孟艳玲 |
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| 作者单位： | 河北工程大学农学院,河北邯郸,056000 |
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| 基金项目： | 河北省教育厅科研项目;邯郸市科技局攻关项目 |
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| 摘 要： | 采用砂培法研究了NaCl对黄瓜幼苗生长及细胞膜抗氧化系统的影响。结果表明,低盐浓度(45～90mmol.L-1)胁迫5 d和3 d对黄瓜幼苗的干重、鲜重、根系活力和盐害指数影响不大。但随NaCl胁迫时间延长,干重、鲜重和根系活力降低,盐害指数增高;高浓度(180 mmol.L-1)明显抑制了黄瓜幼苗生长。NaCl胁迫下,电解质渗透率、SOD活性和MDA含量上升,膜脂过氧化作用加强。
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| 关 键 词： | 黄瓜幼苗 生长 抗氧化系统 |
| 文章编号： | 1004-1389(2007)04-0170-04 |
| 收稿时间： | 2006/11/16 0:00:00 |
| 修稿时间： | 2006年11月16 |
Effects of NaCl Strees on Growth and Antioxidant Systems of Cucumber Seedlings |
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| WANG Li-ping,CUI Mei-xiang and MENG Yan-ling.Effects of NaCl Strees on Growth and Antioxidant Systems of Cucumber Seedlings[J].Acta Agriculturae Boreali-occidentalis Sinica,2007,16(4):170-173. |
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| Authors: | WANG Li-ping CUI Mei-xiang and MENG Yan-ling |
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| Institution: | College of Agronomy, Hebei University of Engineering, Handan Hebei 056000, China;College of Agronomy, Hebei University of Engineering, Handan Hebei 056000, China;College of Agronomy, Hebei University of Engineering, Handan Hebei 056000, China |
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| Abstract: | The effects of NaCl stress on growth and antioxidant systems of cell membrane of cucumber seedlings under pot filling sand were studied.The results showed that at salt concentration of 45~90 mmol·L-1 on the dry weig ht(DW),fresh weight(FW),root activity and salt injury indexes of seedlings were not affected obviously within 5 days and 3days.But DW,FW,root activity decreased,and salt injury indexes enhanced as the NaCl stress extended.When the concentration of NaCl was increased to 180 mmol·L-1,the growth of seedling s was obviously inhibited.Electrolytic leakage,SOD activity,MDA content increased,and lipid peroxidation enhanced. |
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| Keywords: | NaCl |
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