[1]刘敏,厉悦,梁艳,等.不同浓度氯化钠胁迫对万寿菊幼苗生长及生理特性的影响[J].北方园艺,2013,37(24):63-66.
　LIU Min,LI Yue,LIANG Yan,et al.Effect of Different Concentration of NaCl Stress on the Growth and Some Physiological Characteristics of Tagetes erecta Seedlings[J].Northern Horticulture,2013,37(24):63-66.
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不同浓度氯化钠胁迫对万寿菊幼苗生长及生理特性的影响

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第37卷 期数: 2013年24期 页码: 63-66 栏目: 出版日期: 2013-12-30
Title:
Effect of Different Concentration of NaCl Stress on the Growth and Some Physiological Characteristics of Tagetes erecta Seedlings
文章编号:
1001-0009（2013）24-0063-04
作者:
刘敏1; 2; 厉悦1; 梁艳1; 田立广1
1.齐齐哈尔大学 生命科学与农林学院，黑龙江 齐齐哈尔 161006；
2.东北林业大学 森林植物生态学教育部重点实验室，黑龙江 哈尔滨 15004
Author(s):
LIU Min 1; 2; LI Yue1; LIANG Yan1; TIAN Li-guang1
1.College of Life Science and Agriculture and Forestry,Qiqihar University，Qiqihar，Heilongjiang 161006；2.Key Laboratory of Forest Plant Ecology，Ministry of Education，Northeast Forestry University，Harbin,Heilongjiang 150040
关键词:
万寿菊; 氯化钠（NaCl）; 胁迫; 生长; 生理特性
Keywords:
Tagetes erecta; NaCl; stress; growth; physiological characteristics
分类号:
S 682.1+1
文献标志码:
A
摘要:
以盆栽万寿菊幼苗为试材，研究了不同浓度的NaCl胁迫对万寿菊幼苗生长及部分生理特性的影响。结果表明：0.20%NaCl胁迫对万寿菊幼苗生长及生理特性有促进作用；浓度≥0.40%的NaCl处理对万寿菊幼苗的生长有明显的抑制作用，并且随着浓度的增大，抑制作用增强，株高及生物量净增长量、叶绿素含量急剧降低，MDA含量明显增高。由此可以认为，0.40%NaCl浓度是万寿菊幼苗受到胁迫伤害的阈值；NaCl胁迫下叶片中脯氨酸含量、SOD活性、CAT活性和POD活性显著增高，说明万寿菊幼苗通过增加渗透调节物质和保护酶活性等方式来适应NaCl的胁迫。
Abstract:
Taking the seedlings of Tagetes erecta as test material, the effect of different concentration of NaCl stress on the growth，and some physiological characteristics of Tagetes erecta were studied.The results showed that 0.20% NaCl had a promoting effect on the growth and development of treated plants.When the concentration of NaCl equal to or more than 0.40%，the growth of treated plants were inhibited.Moreover，as the concentration of NaCl solutions increased，the inhibition was strengthened.Height growth，net biomass growth，as well as chlorophyll content were markedly decreased；At the same time，MDA content markedly increased.It was possible that the concentration of NaCl 0.40% was the key value of NaCl stress.Under the NaCl stress，the contents of proline and the activities of SOD activity，CAT activity and POD activity increased，the difference of treated plants and control was significant.It was suggested that Tagetes erecta seedlings adapted to salt stress by changing osmoregulation and increasing enzyme activity and so on.

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备注/Memo

第一作者简介：刘敏（1979-），女，博士研究生，副教授，现主要从事植物生态与园林生态等研究工作。E-mail：liuminaa168@126.com

.基金项目：齐齐哈尔大学青年教师科技资助项目（2012K-M23）。
收稿日期：2013-09-13

更新日期/Last Update: 2014-12-06