Kim Soo-Hyung, Lieth J Heinrich
Environmental Horticulture, University of California, Davis, CA 95616, USA.
Ann Bot. 2003 Jun;91(7):771-81. doi: 10.1093/aob/mcg080. Epub 2003 Mar 28.
The following three models were combined to predict simultaneously photosynthesis, stomatal conductance, transpiration and leaf temperature of a rose leaf: the biochemical model of photosynthesis of Farquhar, von Caemmerer and Berry (1980, Planta 149: 78-90), the stomatal conductance model of Ball, Woodrow and Berry (In: Biggens J, ed. Progress in photosynthesis research. The Netherlands: Martinus Nijhoff Publishers), and an energy balance model. The photosynthetic parameters: maximum carboxylation rate, potential rate of electron transport and rate of triose phosphate utilization, and their temperature dependence were determined using gas exchange data of fully expanded, young, sunlit leaves. The stomatal conductance model was calibrated independently. Prediction of net photosynthesis by the coupled model agreed well with the validation data, but the model tended to underestimate rates of stomatal conductance and transpiration. The coupled model developed in this study can be used to assist growers making environmental control decisions in glasshouse production.
以下三个模型被组合起来，用于同时预测玫瑰叶片的光合作用、气孔导度、蒸腾作用和叶片温度：Farquhar、von Caemmerer和Berry（1980年，《植物》149卷：78 - 90页）的光合作用生化模型、Ball、Woodrow和Berry的气孔导度模型（载于Biggens J编著的《光合作用研究进展》。荷兰：Martinus Nijhoff出版社）以及一个能量平衡模型。利用充分展开、幼嫩、受阳光照射叶片的气体交换数据，确定了光合参数：最大羧化速率、潜在电子传递速率和磷酸丙糖利用速率及其温度依赖性。气孔导度模型是独立校准的。耦合模型对净光合作用的预测与验证数据吻合良好，但该模型往往低估气孔导度和蒸腾速率。本研究中开发的耦合模型可用于协助种植者在温室生产中做出环境控制决策。
