浙江农业学报

• 园艺科学 • 上一篇    下一篇

植物叶表气孔日变化规律与叶厚参数的相关性初探

  

  1. (中国计量学院 计量测试工程学院,浙江 杭州 310018)
  • 出版日期:2015-01-25 发布日期:2015-01-17

Preliminary study on the correlation between plant stomata aperture and leaf thickness parameters

  1. (College of Metrology Technology and Engineering, China Jiliang University, Hangzhou 310018, China)
  • Online:2015-01-25 Published:2015-01-17

摘要: 气孔是植物水分散失的通道,其与叶片厚度之间存在一定关系。为对植物叶片气孔进行活体观测,采用长工作距离金相物镜加变焦显微镜头作为光学显微系统,千分尺导轨作为微调机构,结合CCD图像采集传感器,通过设计并制作适用于叶片活体观测的机械支架,搭建了植物叶片气孔活体观测装置。利用该装置对温室栽培的花生叶片进行监测,可直接获得叶片气孔面积百分比(气孔开度)的实时变化情况,采集到气孔的日变化规律,对花生叶表气孔开度与叶片厚度的关系进行分析,结果表明,花生叶片厚度与气孔开度的相关系数为-0.82,呈显著负相关。

关键词: 气孔开度, 叶片厚度, CCD, 光学显微系统

Abstract: There is a correlation between leaf thickness and stoma, which modulates water loss for plants. After optical design, a long-working-distance optical magnification system was adopted to build a microscopic observation platform, and CCD was used to realize in vivo image acquisition of leaf stomata. Peanut leaves grown in greenhouse were monitored by self-built living plant stomatal observation device, thus the real time information of stomatal aperture could be acquired directly. There was remarkable negative correlation between stomatal aperture and leaf thickness, and the coefficient was -0.82.

Key words: stomatal aperture, leaf thickness, CCD, microscope optical system