[1]刘伟,丁长春,常征.干旱胁迫下吊石苣苔三种生理指标变化规律研究[J].北方园艺,2014,38(19):65-67.
　LIU Wei,DING Chang-chun,CHANG Zheng.Study on Three Physiological Indexes of Lysionotus pauiflorus Under Drought Stress[J].Northern Horticulture,2014,38(19):65-67.
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干旱胁迫下吊石苣苔三种生理指标变化规律研究

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第38卷 期数: 2014年19期 页码: 65-67 栏目: 出版日期: 2014-10-15
Title:
Study on Three Physiological Indexes of Lysionotus pauiflorus Under Drought Stress
文章编号:
1001-0009（2014）19-0065-03
作者:
刘伟1; 2; 丁长春1; 2; 常征1; 2
1.文山学院 环境与资源学院，云南 文山 663000；
2.文山州生物资源开发与研究中心，云南 文山 663000
Author(s):
LIU Wei 1; 2; DING Chang-chun 1; 2; CHANG Zheng 1; 2
1.College of Resources and Environment,Wenshan University,Wenshan,Yunnan 663000；
2.Wenshan Biological Resources Development and Research Center,Wenshan,Yunnan 663000
关键词:
吊石苣苔; 叶绿素含量; 干旱胁迫; 相对含水量; 水势
Keywords:
Lysionotus pauiflorus; chlorophyll content; drought stress; relative water content; water potential
分类号:
Q 945.78
文献标志码:
A
摘要:
以吊石苣苔为试材，采用人为设置干旱环境的方法，研究了不同干旱胁迫条件下吊石苣苔叶片相对含水量、水势及叶绿素含量的变化规律，以期探讨吊石苣苔对干旱胁迫的生理响应。结果表明：干旱胁迫条件下，植株相对含水量变化差异不显著，水势先升高，处理12 d后降低，叶绿素含量在处理后12 d内变化不大，12 d后急剧下降。对以上3个生理指标分析表明，吊石苣苔持水能力强，抗旱能力较强，12 d是植株对干旱胁迫的临界期，12 d后干旱胁迫开始对植株造成伤害，为了保证植株正常生长，干旱12 d后应及时进行复水处理。
Abstract:
Taking Lysionotus pauiflorus as test material,using the method of setting up the arid environment,variation rules of different drought stress conditions on relative water content,water potential and chlorophyll content of Lysionotus pauiflorus leaf were researched,in order to explore physiological response of Lysionotus pauiflorus under drought stress.The results showed that the relative water content had no significant change at different degrees of drought,the water potential increased first and then decreased after 12 days,and the chlorophyll content sharp decline after 12 days too.The results suggested that the drought had little influence on Lysionotus pauiflorus within 12 days,but the Lysionotus pauiflorus were destructed after 12 days of drought treatment,it should be timely watering of Lysionotus pauiflorus after 12 days of drought in order to avoid injury.

参考文献/References:

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备注/Memo

第一作者简介：刘伟（1977-），男，硕士，讲师，现主要从事植物学等研究工作。E-mail：liuwei00780@126.com.
 基金项目：云南省教育厅自然科学基金资助项目（2013Y582）；文山学院重点学科资助项目（09wsxk 02）。
收稿日期：2014-05-22

更新日期/Last Update: 2014-11-25