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昆明市引种的球花石楠生态适应性研究与组培繁殖试验

来源：花匠小妙招时间：2025-09-25 04:28

昆明市引种的球花石楠生态适应性研究与组培繁殖试验倪静珠昆明市引种的球花石楠生态适应性研究与组培繁殖试验倪静珠指导教师赵林森摘要：由于昆明城市建设发展的需要，近年来通过引进外来树种或本地乡土树种来丰富城市园林植物种类，提高城市绿化水平的做法日益受到重视。球花石楠(Photinia ∥omerata Lind]．)是蔷薇科(Rosacea)石楠属(Photinia Lindl．)植物，属西南地区特有树种。上世纪九十年代初从安宁温泉曹溪寺引种到昆明市进行栽培获得成功。由于它具有较高的园林观赏价值，因而在昆明市具有较高的开发潜力和市场前景，目前已被列为云南省城市重点绿化苗木树种。通过野外观察和室内试验测试相结合的方法对球花石楠的生态适应性及组织培养方案与相应技术开展了试验研究，重点对其在不同的光照和水分处理条件下的形态结构、生理指标及光合、蒸腾特性来进行量化测定，归纳出球花石楠生长与光照、水分、土壤等生态因子的相关性，从而为它的栽植、养护和管理提供科学的理论依据和定量分析指标。研究表明，球花石楠为强喜阳树种，适合在光照充足，周围无遮荫地带下生长。同时它又是一个喜湿树种，较适合在含水量为25．1％一36．6％的土壤中生长，在此含水量条件下各项生长指标和生理特性可望达到最佳。土壤适应性试验选取不同的栽种点进行土壤研究分析，结果表明球花石楠对土壤要求不严，只要不是土质太差如盐碱土、石渣土一般均能较好生长。球花石楠的组织培养以当年生半木质化茎段为外植体最佳。外植体接种于附加 2mg／L6～BA+O．05mg／LNAA的MS培养基中形成愈伤组织，愈伤组织形成一定数量，转接到相同的培养基中继代培养形成丛芽。关键词：球花石楠，引种，生态适应性，组织培养 Study Study on Ecological Adaptability and Tissue Culture ofPhotinia glomerata Lindl．Introduced into Kunming Urban Area Ni Jing—zhu Directed byZhao Lin-sen Abstract：Motivated by urban development and environmental construction in Kunming， great attention has been paid to the effort to introduce both exotic and native tree species of Yunnan province into Kunming urban area in order to enrich biodiversity and to improve greening effect．Photinia glomerata Lindl belonging to genus ofPhotinia Lindl of Rosacea class，is a special tree species distributed in southwest China,which was successfully introduced into Kunming from Caoxishi Temple of Anning around 1990’S．Having showed great development potential and prosperous future market of saplings for this valuable omamentai evergreen tree species，Photinia glomerata Lindl has been listed as a key species worthy ofdeveloping in Yunnan province． Researches of ecological adaptability of Photinia glomerata Lindl and tissue culture related technology were done through field survey combined with laboratory experiments． The main effort was made to determine the quantitative changes ofmorphological structure， physiological indexes such as photosynthesis rate and transpiration rate under different