|本期目录/Table of Contents|

[1]刘济明,李佳,文爱华,等.米槁幼苗光合色素与光合特征对干旱胁迫的响应[J].江苏农业科学,2019,47(09):171-174.
 Liu Jiming,et al.Responses of photosynthetic pigment and photosynthetic characteristics of Cinnamomum migao to drought stress[J].Jiangsu Agricultural Sciences,2019,47(09):171-174.
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米槁幼苗光合色素与光合特征对干旱胁迫的响应(PDF)
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第47卷
期数:
2019年第09期
页码:
171-174
栏目:
园艺与林学
出版日期:
2019-05-27

文章信息/Info

Title:
Responses of photosynthetic pigment and photosynthetic characteristics of Cinnamomum migao to drought stress
作者:
刘济明 李佳 文爱华 邓明明
贵州大学林学院,贵州贵阳 550025
Author(s):
Liu Jiminget al
关键词:
米槁含水量生理指标光合作用干旱胁迫
Keywords:
-
分类号:
S567.1+90.1
DOI:
-
文献标志码:
A
摘要:
以一年生米槁幼苗为研究对象,研究盆栽下3种不同土壤相对含水量对米槁幼苗叶片相对含水量、叶绿素含量、光合生理指标变化趋势以及光响应特征的影响。结果表明,(1)米槁幼苗叶片相对含水量随土壤干旱胁迫加剧而明显降低,但下降幅度小于土壤相对含水量的下降幅度,表明米槁幼苗遭受干旱胁迫时叶片具有一定的保水能力。(2)米槁幼苗叶片相对含水量与净光合速率极显著正相关,是影响叶片净光合速率的重要因子。(3)随着干旱胁迫的加剧,叶绿素(Chl)、叶绿素a(Chla)、类胡萝卜素(Car)、叶片水分利用率(WUE)、胞间CO2浓度(Ci)逐渐升高,叶绿素Chla/b先减少后升高,净光合速率(Pn)随干旱胁迫加重而逐渐降低,气孔导度(Gs)和蒸腾速率(Tr)先降低后升高。可见土壤含水量直接影响植物各项光合生理指标,从而影响植物的光合作用。
Abstract:
-

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备注/Memo

备注/Memo:
收稿日期:2017-12-18
基金项目:贵州省科技计划(编号:黔科合SY[2015]3023)。
作者简介:刘济明(1963—),男,重庆人,硕士,教授,博士生导师,主要从事植物生态学研究。E-mail:karst0623@163.com。
更新日期/Last Update: 2019-05-05