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园艺学报 ›› 2005, Vol. 32 ›› Issue (4): 624-627.

• 研究论文 • 上一篇    下一篇

环境因子对温室茄子光合非稳态性的影响

高志奎1;高荣孚2;何俊萍1;王 梅1   

  1. (1 河北农业大学园艺学院, 保定071001; 2 北京林业大学, 北京100083)
  • 收稿日期:2005-01-14 修回日期:2005-03-18 出版日期:2005-08-25 发布日期:2005-08-25

Effect of Environmental Factors on Unsteady-state Photosynthesis in Greenhouse Aubergine

Gao Zhikui1;Gao Rongfu2;He Junping1;Wang Mei1   

  1. (1College of Horticulture, Hebei Agriculture University, Baoding 071001, China; 2Beijing Forestry University, Beijing 100083, China)
  • Received:2005-01-14 Revised:2005-03-18 Online:2005-08-25 Published:2005-08-25

摘要: 采用光合作用测定系统CIRAS-2以2 s的间隔时间采集数据, 对日光温室茄子光合进程进行了瞬态测试, 发现光合的非稳态性。结合光强和CO2 浓度的阶梯式处理进行瞬态测试以及瞬态光合进程的回归、相关分析发现, Ci和Ca对Pn非稳态性的作用最大, 其次是Gs、E和PAR, 而T1 和RH的作用很弱; 瞬态Ci与Pn变化呈镜像反式, 为极显著或显著负相关性; 瞬态Gs与Pn未达到显著相关性。

关键词: 日光温室, 茄子, 瞬态光合, 非稳态光合

Abstract: Transient photosynthesis was measured by C IRAS-2 of PP SystemsLtd. at automatic recording with an interval of 2 s, and unsteady-state photosynthesis was found in greenhouse aubergine. By combining the transient measurement at the step treatment on photosynthetic available radiation ( PAR) and ambient
CO2 concentration Ca in greenhouse with regression and correlation analysis of transient photosynthesis course, it was found that effects of intercellular CO2 concentration Ci and Ca on unsteady-state photosynthesis were the
strongest, followingswere stomatal conductance Gs, transp iration rate E and PAR, and T1 and RH the least. At the same time, there was significant negative correlation at the P0.01 or P0.05 level between Ci and net photosynthetic rate Pn, but no correlation between Gs and Pn.

Key words: Greenhouse, Aubergine, Transient photosynthesis, Unsteady-state

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