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作物杂志,2016, 第5期: 81–86 doi: 10.16035/j.issn.1001-7283.2016.05.014

• 生理生化·植物营养·栽培耕作 • 上一篇    下一篇

高温条件下CO2对黄瓜叶片光合速率和气孔特性的影响

张之为,李晓静,白金瑞,陈帅   

  1. 内蒙古农业大学农学院,010019,内蒙古呼和浩特
  • 收稿日期:2016-07-20 修回日期:2016-08-14 出版日期:2016-10-15 发布日期:2018-08-26
  • 作者简介:张之为,副教授,主要从事植物生理研究
  • 基金资助:
    内蒙古教育厅项目(NJZY14083);内蒙古自然科学基金(2015BS0313)

Effects of CO2 on Cucumber Leaf Photosynthetic Rate and Stomatal Characters under High Temperature

Zhang Zhiwei,Li Xiaojing,Bai Jinrui,Chen shuai   

  1. College of Agronomy,Inner Mongolia Agricultural University,Hohhot 010019,Inner Mongolia,China
  • Received:2016-07-20 Revised:2016-08-14 Online:2016-10-15 Published:2018-08-26

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摘要：

探索高温条件下,施加CO2对黄瓜叶片的光合速率、气孔长度、气孔宽度、气孔密度、气孔开张比和气孔开度的影响。采用LI-6400测定光合速率,结果显示高温条件下,经CO2处理的14、21、28、35和42d的黄瓜叶片光合速率显著增加,分别比常温处理增加30.8%、49.7%、34.5%、32.1%和32.1%。利用软件Motic Images Advanced 2.0分析表明,高温结合CO2处理后黄瓜气孔长度、宽度、密度、开张比和开度均显著增加,在处理35、28、42、14和28d时分别比常温处理增加了36.4%、38.8%、37.7%、30.2%和36.9%。

关键词: 黄瓜, 光合速率, 气孔, 高温, CO2

Abstract:

The effects of CO2 on leaf photosynthetic rate, stomatal length and width, stomatal density, stomatal opening ratio and stomatal aperture under high temperature were studied in cucumber. LI-6400 was used to test cucumber photosynthetic rate. The result showed that compared with room temperature, cucumber photosynthetic rate was increased significantly to 30.8%, 49.7%, 34.5%, 32.1% and 32.1% respectively, at 14, 21, 28, 35 and 42 days by treating with high temperature and CO2. By Motic Images Advanced 2.0, cucumber stomatal length and width, stomatal density, stomatal opening ratio and stomatal aperture were all increased significantly by treating with CO2 and high temperature. Compared with treatment of room temperature, they were increased by 36.4%, 38.8%, 37.7%, 30.2% and 36.9% at 35, 28, 42, 14 and 28 days, respectively.

Key words: Cucumber, Photosynthetic rate, Stoma, High temperature, CO2

图1

不同处理环境温度日变化"

图2

不同处理环境CO2浓度日变化"

图3

高温、CO2处理对黄瓜叶片光合速率的影响 不同字母表示处理间差异显著（P<0.05）"

图4

高温、CO2处理对黄瓜气孔长度的影响"

图5

高温、CO2处理对黄瓜气孔宽度的影响"

图6

高温、CO2处理对黄瓜气孔密度的影响"

图7

高温、CO2处理对黄瓜气孔开张比的影响"

图8

高温、CO2处理对黄瓜气孔开张度的影响"

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