[Photosynthetic physiological characteristics of Angelica dahurica var.formosana from Sichuan province in different growth years].

作者：Yi-Jie Jiang, Mei-Yan Jiang, Yun-Qiu Zhou, Chen Chen, Kai Hou, Wei Wu · 发表于：PubMed · 年份：2019 · DOI：10.19540/j.cnki.cjcmm.20190129.012 · 被引用次数：1 · 研究领域：Remote Sensing and Land Use、Environmental and Agricultural Sciences、Water Quality Monitoring and Analysis

In this study,the leaves of autumn-sown Angelica dahurica var. formosana from Sichuan province in different growth years was used to explore the fitting model of photosynthetic response curve and the different photosynthetic physiological characteristics between annual and biennial A. dahurica var. formosana from Sichuan province. The results showed that the fitting model of the optimum light response curve of the leaves of A. dahurica var. formosana from Sichuan province with different growth years was all rectangular hyperbolic correction model. The light saturation points were 1 600,1 700 μmol·m-2·s-1,the light compensation points were17. 98,52. 23 μmol·m-2·s-1 in the leaves of annual and biennial plant,respectively. The diurnal variation curves of net photosynthetic rate,transpiration rate and stomatal conductance in the leaves all acted as a single peak value wave. The daily mean values of net photosynthetic rate and transpiration rate in the leaves of biennial plant were significantly higher than that of annual plant. There was no significant difference in daily mean stomatal conductance. The net photosynthetic rate was significantly positively correlated with stomatal conductance in both of the different growth years. The net photosynthetic rate of annual and biennial A. dahurica var. formosana from Sichuan province had extremely significant and significantly negative correlation with the intercellular CO2 respectively. The transpiration rate of annual plant was positi...