不同天气下黄瓜叶片湿度变化特征及其影响因子  

Characteristic of Solar Greenhouse Cucumber Leaf Humidity Features and Its Influence Factors in Different Weather

作　　者：崔海[1] 郭文忠 

机构地区：[1]银川能源学院生物工程系,宁夏永宁750105 [2]国家农业智能装备工程技术研究中心,北京100097

出　　处：《北方园艺》2017年第4期25-27,共3页Northern Horticulture

基　　金：银川能源学院校级科研资助项目(2013-KY-Z-08)

摘　　要：以黄瓜为试材,设土壤相对含水量50%~60%(SW1)和土壤相对含水量75%~90%(SW2)为处理,在生长季连续观测日光温室黄瓜叶片湿度及环境因子,以揭示日光温室黄瓜叶片湿度变化特征及影响因子。结果表明:在不同天气下,日光温室黄瓜叶片湿度表现为增-降-增的变化趋势,00:00—08:00逐渐增加,08:00—19:00骤降于一个低的水平,19:00—00:00快速增加至较高水平的变化趋势,且SW1和SW2处理的黄瓜叶片湿度均表现为阴天>晴天。由统计分析得出,黄瓜叶片湿度与二氧化碳浓度、光合有效辐射、相对湿度、饱和水汽压差呈正相关,与光照总辐射、温度、土壤相对含水量呈负相关。Cucumber was used as materials,leaves moisture of cucumber and environmental factors were continuously observed in solar greenhouse during the growing season with treatment as soil moisture content of50%-60%（SW1）and soil water content of 75%-90%（SW2）.To reveal variation of cucumber leaves humidity and its influencing factors in solar greenhouse.The results showed that in cloudy and sunny day,leaves moisture of cucumber showed as increased-decreased-increased trend.Leaves moisture of cucumber was gradually increases in 00：00—08：00,then suddenly reduced to a low level in 08：00—19：00,and rapidly increased in the trend to higher levels in 19：00—00：00.And leaves humidity of cucumber was showed as cloudy〉sunny of SW1 and SW2.From the statistical analysis,the leaves humidity of cucumber was positively correlated with CO2 concentration,photosynthetically active radiation,relative humidity and vapor pressure deficit,and had negatively correlated with the total radiation,temperature and soil relative water content.

关 键 词：叶片湿度 不同天气 黄瓜 日光温室 

分 类 号：S642.2[农业科学—蔬菜学]