桂花生长速度和幼叶光合作用的影响要素研究  

Study on the Influence Elements of Growth Speed and Young-leaves Photosynthesis of Osmanthus fragrans

作　　者：倪薇[1] 谭翠英 占爱瑶[3] 罗培高[3] 

机构地区：[1]四川农业大学农学院农村区域发展系,四川成都631110 [2]四川省雅安市建设局园林处,四川雅安625014 [3]四川农业大学植物遗传育种省级重点实验室,四川成都631110

出　　处：《安徽农业科学》2011年第28期17354-17356,17363,共4页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金(30971787);教育部霍英东高校青年教师基金(111030);四川省杰出青年科技基金(2010JQ0042);四川省省级特色专业建设项目

摘　　要：[目的]研究桂花生长速度和幼叶光合作用的影响因素。[方法]以四川农业大学新区主干道两旁的桂花树为研究对象,对其树高、胸径、冠幅、幼叶叶绿素含量和光合作用指标、结实情况进行调查,以日照时间长短和是否进行生殖生长进行差异显著性分析。[结果]缩短日照时间更有利于桂花的纵向生长;营养生长状况与是否进行生殖生长没有必然联系;生殖生长的幼叶长势较弱,发育迟缓,但不改变其发育顺序;日照时间越长,桂花幼叶发育进程越快。[结论]该研究为西南地区选用桂花作行道树的配置提供了理论依据。[Objective] The research aimed to study the influence elements of growth speed and young-leaves photosynthesis of Osmanthus fragrans.[Method] Osmanthus fragrans in the two sides of major trunk road in the new district of Sichuan Agricultural University was the research objective.The height,diameter,canopy breadth,chlorophyll content and photosynthesis index of young leaves,seed situation were investigated.By using the sunshine time and reproductive growth,the difference significance analysis was carried out.[Result] The short sunshine time was favorable for the longitudinal growth of Osmanthus fragrans.The nutrient growth didn’t have the necessary connection with the reproductive growth.The young leaves with the reproductive growth grew slowly,but the developmental sequence wasn’t changed.The longer the sunshine time was,the quicker the development process of young leaves was.[Conclusion] The research provided the theory basis for selecting Osmanthus fragrans as the street tree in the southwest of China.

关 键 词：桂花 营养生长 生殖生长 光合作用指标 

分 类 号：S685.13[农业科学—观赏园艺]