• 1
  • 2
  • 3
  • Home
  • About Journal
  • Editorial Board
    The 8th Editorial Board of Guihaia
    The Previous Editorial Boards of Guihaia
  • Subscription
  • For Authors
    Contact Us
    Writing Guideline
    Submission Guideline
  • Open Access
  • Ethcis Statement
  • Chinese
Cite this article:[Click copy]
[Click copy]
【Print this page】   【Download PDF full text】   【View/Add Comment】  【Download reader】  【 Close 】
←Previous|Next→ Archive     Advanced search
This article has been:browse 9659times   Download 2589times 本文二维码信息
Scan the code!
Script:Enlarge+|Default|Narrow-
苋菜的光合特性
孙谷畴;   
中国科学院华南植物研究所
摘要:
宽菜Amaranthus cruentus cv.生长在调控的温室条件。在光强0至800μmol.m-2S-1,光合速率(PN,μmol.CO2m-2、s-1)随光强(PFD,μmol、m-2、s-1)增高而增大,其关系为PN=56.82 PFD×10-3—2.13。光补偿点为60μmol.m-2、s-1。叶片在1400 μmol.m-2、s-1达到光合光饱和点。在叶温35℃,叶片/空气水蒸汽压陡度20 m Pa、Pa-1和外界CO2浓度340μ1、1-1,光饱和光合速率为51.63±4.90μ mol.CO2、m-2、S-1。在光强0至600μmol.m-2、s-1,气孔传道率随光强增高而增大。光强高于600μmol.m-2、s-1,气孔传道率变化较小。细胞间CO2浓度为120μ1.1-1由于细胞间CO2浓度在光合速率——CO2关系曲线的转折点,可能表明光合作用不受气孔限制。结果表明,苋菜适于高光强环境生长,在干旱条件下具有高的光合速率。
关键词:  苋菜  光合速率  水分利用效率  
DOI:
分类号:
Fund project:
  
Abstract:
Key words:  
桂ICP备05007876号-3
Adress:Guangxi Institute of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences, No. 85, Yanshan Street, Yanshan District, Guilin, Guangxi, China   Editorial Office of Guihaia,Postal code: Tel/Fax:0773-3550074
E-mail:guihaia@vip.163.com;guihaia@126.com;guihaia@gxib.cn   website:www.guihaia-journal.com
Technology:Beijing Qinyun Science and Technology Development Co., Ltd.