裂叶沙参气孔行为与光合蒸腾特性通径分析  

PATH COEFFICIENT ANALYSIS OF PHOTOSYNTHESIS AND TRANSPIRATION OF ADENOPHORA LOBOPHYLLA AND STOMATA BEHAVIOR

作　　者：马书荣[1] 吴双秀[1] 吴宇 阎秀峰 祖元刚 

机构地区：[1]东北林业大学森林植物生态学开放研究实验室,哈尔滨150040

出　　处：《木本植物研究》2000年第4期411-415,共5页

基　　金：国家自然科学基金!"八五"重大资助项目 (No .393915 0 0 )

摘　　要：通过相关系数和通径系数分析方法 ,对不同海拔高度裂叶沙参 (Adenopho ralobophylla)气孔行为与光合、蒸腾特性的关系进行了相关性分析。气孔行为对光合、蒸腾均缺乏显著的相关性 ,说明裂叶沙参光合、蒸腾作用的气孔控制不显著 ;裂叶沙参叶片气孔开度直接影响光合速率和胞间CO2 浓度 。The relationships between altitude changes of photosynthesis and transpiration of A.lobophylla and the stomata behavior are analysed by correlation coefficient and path coefficient analysis. The correlation coefficient were not significant between stomata behavior, photosynthesis and transpiration, and the stomatal limitation for photosynthesis and transpiration of A.lobophylla were not evident. The influences of stomata open were evident on photosynthesis rate and intercellular CO 2 concentration of A. lobophylla , and effect of stomata conductance with transpiration rate were big.

关 键 词：裂叶沙参 气孔行为 光合特性 蒸腾特性 通径分析 

分 类 号：Q949.783.2[生物学—植物学] Q945.172