基于红外气体分析的植物光合作用自动监测仪研制

Development of Plant Photosynthesis Automatic Monitor Based on Infrared Gas Analysis

植物叶片生理参数的测定对植物生长发育的研究具有重要意义。为了实现植物光合作用等生理参数的低成本、高效率监测,设计了具有自动开合和手持式叶室的监测仪,通过接入节点和计算节点完成实验数据的采集和管理。接入节点完成CO_(2)浓度、空气温湿度、大气压强等数据采集及光合生理参数的实时计算,计算节点负责人机交互界面和远程监测系统的数据存储和网络化传输。实验结果表明,该监测仪与国外同类型监测系统没有显著差异,能满足植物光合作用自动监测的要求。此外,该监测仪对植物生理参数的自动监测响应迅速、测量结果稳定可靠且成本低廉,对于监测作物生长发育状况、指导农作物施肥和病虫害防范具有重要的辅助作用。

The determination of physiological parameters of plant leaves is of great importance to the study of plant growth and development.In order to realize the low-cost and high-efficiency monitoring of physiological parameters such as plant photosynthesis,a monitor with automatic opening and closing and handheld leaf chamber is designed in this paper,which can collect and manage experimental data by connecting nodes and computing nodes.The data collection such as CO_(2)concentration,air temperature and humidity,atmospheric pressure and real-time calculation of photosynthetic physiological parameters are completed through the access node.The data storage and networked transmission of the human-computer interaction interface and remote monitoring system are realized through computing nodes.The results show that there is no significant difference between this instrument and similar monitoring systems abroad,and it can meet the requirements of automatic monitoring of plant photosynthesis.In addition,the monitor has fast response to automatic monitoring of plant physiological parameters,stable and reliable measurement results,and low cost.It plays an important assistant role in monitoring crop growth and development,guiding crop fertilization,and preventing plant diseases and insect pests.