冬小麦、夏玉米水分胁迫监测系统

The water stress detection system of winter wheat and summer maize

根据冬小麦、夏玉米田间试验结果分析了作物水分胁迫判别指标叶水势、冠层温度-气温差变化规律,在充分考虑判别指标随作物发育期变化的特征基础上,提出了叶水势、冠层温度-气温差反映土壤相对含水量的指标,并建立了作物水分胁迫监测系统,对指导生产实践具有一定作用。

Based on the field experimental data of winter wheat and summer maize,the variation of leaf water potential and canopy-temperature discrepancy was analyzed and used as the index of wa-ter stress. This index could vary with growing season and the characteristics of variation was con-sidered. The relationship between leaf water potential, canopy-temperature discrepancy and soil water content was found, and then the detection system of crop water stress was set up.