| 不同种类外源多胺缓解黄瓜植株盐胁迫伤害的效应 |
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| 引用本文： | 姜惠丽,段九菊,郭世荣,杨顺萍,杨晓,齐敏.不同种类外源多胺缓解黄瓜植株盐胁迫伤害的效应[J].中国蔬菜,2007,1(3):0-11. |
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| 作者姓名： | 姜惠丽 段九菊 郭世荣 杨顺萍 杨晓 齐敏 |
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| 作者单位： | 南京农业大学园艺学院; 210095; |
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| 基金项目： | 高等学校博士学科点专项科研项目;江苏省农业三项工程项目;南京农业大学校科研和教改项目 |
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| 摘 要： | 采用营养液栽培,研究了盐胁迫下不同种类外源多胺对黄瓜幼苗株高、叶长、叶宽、主根根长及植株干、鲜质量的影响。结果表明,50mmol·L-1NaCl胁迫1d时幼苗株高即显著降低,胁迫3d时幼苗叶长和叶宽显著降低,胁迫7d时幼苗主根根长和植株干、鲜质量显著降低,且抗盐性较弱的津春2号比抗盐性较强的长春密刺植株生长受抑制程度大。外源腐胺、亚精胺、精胺可以不同程度地缓解盐胁迫对黄瓜幼苗生长的抑制作用,缓解效果依次为亚精胺>精胺>腐胺,且3种多胺对津春2号的缓解效果优于长春密刺。
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| 关 键 词： | 黄瓜幼苗 盐胁迫 腐胺 亚精胺 精胺 |
| 收稿时间： | 2006-10-26; |
| 修稿时间： | 2006-10-262006-12-29 |
Studies on Alleviative Effects of Different Kinds of Exogenous Polyamine on Salt Injury of Cucumber Seedlings under Salt Stress |
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| Jiang Huili, Duan Jiuju, Guo Shirong,et al..Studies on Alleviative Effects of Different Kinds of Exogenous Polyamine on Salt Injury of Cucumber Seedlings under Salt Stress[J].China Vegetables,2007,1(3):0-11. |
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| Authors: | Jiang Huili Duan Jiuju Guo Shirong |
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| Institution: | College of Horticulture; Nanjing Agricultural University; Jiangsu 210095 |
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| Abstract: | Hydroponics was adopted to study the effects of different kinds of exogenous polyamine on the height of plant,the length and width of leaf,the length of root,fresh and dry weight of cucumber seedlings under salt stress.The results showed that under 50 mmol·L-1 NaCl stress,the height of plant significantly decreased on the first day,the length and width of leaf significantly reduced on the third day,and the length of root,fresh and dry weight significantly decreased on the seventh day.The inhibition effect o... |
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| Keywords: | Cucumber seedlings Salt stress Putrescine(Put) Spemidine(Spd) Spermine(Spm) |
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