福建林学院学报2011，Vol.31Issue(3)：193-197,5.
土壤水分胁迫对短葶山麦冬光响应特性的影响
Effects of soil water stress on the photosynthetic response of Liriope muscari
摘要
Abstract
Four different levels of water stress, mild water stress ( Wl) , moderate water stress ( W2) , severe water stress ( W3 ) and the control ( CK) were applied to study the effects of water stress on the photosynthetic response of Liriope muscari under pot cultural condition by controlling soil water content. The results showed that net photosynthetic rate ( Pn) was CK > W2 > Wl > W3 when PAR was above 200 μmol·m-2'·s-1. Water stress lowered the max net photosynthetic rate and apparent quantum efficiency and the decreasing amplitude of W3 was the biggest. W3 increased the light compensation point and light saturation point. The water use efficiency reached maximum at the 400 μmol·m~-2·s-1l of PAR under the different soil water moisture. 50% and 35% of field water-holding capacity increased the water use efficiency of L muscari.关键词
短葶山麦冬/水分胁迫/光响应/光合作用Key words
Liriope muscari (Decne. ) Bailey/ water stress/ photosynthetic response/ photosynthesis分类
农业科技引用本文复制引用
范海兰,洪伟,吴承祯,李键,林晗,侯智勇..土壤水分胁迫对短葶山麦冬光响应特性的影响[J].福建林学院学报,2011,31(3):193-197,5.基金项目
国家自然科学基金资助项目(31070606) （31070606）
教育部博士点学科专项基金资助项目(20093515110006). （20093515110006）
