Effect of Multi-parameter Environmental Factors on Cucumber Leaf Surface Wetness

• 作者: Chunyang QIAN Fengju LI Jianchun WANG Yan WANG Zhiwen SONG
• 来源期刊: 农业生物技术:英文版
• 学科: 农学
• 关键词: CUCUMBER LEAF wetness Principal COMPONENT analysis MULTI-PARAMETER FACTORS
• 年，卷（期）: 2019,（2）
• 页码范围: 32-34
• 页数: 3页
• 分类号: S

摘要

In this study, artificial leaf resistance was used to simulate leaf wetness. Specific to the solar greenhouse environment in Tianjin, microclimate monitoring equipment was installed for the collection of temperature group and humidity group data, as well as solar radiation and leaf wetness in the greenhouse. In order to reduce the complexity of multivariate factor prediction and ensure the richness of selected data types, correlation analysis was made to the 2 groups of data, screening 5 000 groups of data, including the humidity group data RH, RH 20 , RH 40 , temperature group data T, T20 , T40 , and solar radiation W. The data were then analyzed by principal component analysis, screening out 4 groups of principal components to show the leaf wetness index.