湖北民族学院学报:自然科学版Issue(2):125-129,5.
深圳地区桂花夏冬季光合生理特性的比较
Comparison of Photosynthetic Characteristics of Osmanthus fragrans between Summer and Winter of Cultivars in Shenzhen City
摘要
Abstract
To ‘ Wan Yingui' four cultivars of Osmanthus fragrans ( O. fragrans ‘ Rixianggui' , ‘ Xiaoye Fodingzhu' , ‘Wandian Jin' ) introduced in Shenzhen, Pn, Tr, Cond, PAR, Ta and other physiological and ecological factors were measured during summer and winter using the LI-6400 in natural conditions, and photosynthesis and the relationship between factors were analyzed. The results showed that: four cuhivars of O. fragrans showed a diurnal variation of net photosynthetic rate of asymmetric double- peak curve, with a clear photosynthetic "lunch break" phenomenon in summer. In winter, the diurnal change showed a single peak curve. Ci, Cond, PAR, Ta and VPD are the most important factors to affect the net photosynthetic rate. Ci and Ta have the greatest influence in the summer, and PAR effect is particularly prominent in the winter.关键词
净光合速率/气孔导度/胞间/CO2浓度Key words
net photosynthetic rate/stomatal conductance/intercellular CO2 concentration分类
林学引用本文复制引用
王定跃,曹婷,王贤荣,刘永金,徐滔..深圳地区桂花夏冬季光合生理特性的比较[J].湖北民族学院学报:自然科学版,2012,(2):125-129,5.基金项目
深圳市城建局资助项目(201006). ()