中文摘要：

采用CIRAS-2型便携式光合-荧光测定系统（PP-Systems,英国）测定五味子棚架与篱架阳生叶片、阴生叶片的气体交换参数,以期研究棚架与篱架2种栽培模式下五味子叶片的光合能力。结果表明：2种栽培模式下五味子均有＂午休＂现象,净光合速率最大值均出现在上午9：00,棚架五味子阳生叶片与阴生叶片比篱架五味子对应的叶片净光合速率高,一天中棚架五味子日光合产物累计量比篱架五味子高62.28 mmol/m2;五味子＂午休＂现象是气孔限制与非气孔限制共同作用的结果;五味子光合速率Pn与环境因子PAR、Tr、Tc呈正相关关系,与Ci呈负相关关系。

英文摘要：

The gas exchange parameters of sun leaves and shade leaves were measured with CIRAS-2 in order to study the photosynthetic characteristics of different cultivation mode（vertical trellis,pergola trellis）,and provide the reference for choosing reasonable cultural measurement.The results showed that the photosynthetic midday-depress happened in Schisandra chinensis of both cultivation mode.The maximum net photosynthetic rate appeared at 9：00 am.The net Pn of sun and shade leaves in pergola higher than the corresponding leaves in vertical trellis.The net photosynthetic products of pergola trellis higer 62.28 mmol·m-2 than vertical trellis.Both stomatal limitation and non-stomatal limitation resulted in Pn Midday-depress.Pn has positive correlation with PAR,Tr,Tc,while negative correlation with Ci.