滇东英武山杜鹃花种质资源的调查

采用实地调查的方法,以云南省东部曲靖地区师宗县境内英武山为调查研究区域,以分布于该区域的杜鹃花属植物为重点调查对象,记录其区域内杜鹃花属植物种类、杜鹃花资源的垂直分布和水平分布。在对英武山杜鹃花属植物进行系统调查和资料整理的基础上,研究了该属植物在英武山的分布规律,结果表明,英武山杜鹃资源有10种,分布于海拔2 000~2 400 m之间。其水平分布呈现不均匀格局。在此基础上对10种(包括亚种和变种)杜鹃花的的生境类型和主要种类的观赏性状,包括花、叶及其花期以及旅游资源开发现状和利用途径的问题进行了详细观察和探讨。提出了进一步加强对杜鹃花属植物资源保护与开发利用、加强野生杜鹃引种驯化、利用杂交及现代生物学技术培育杜鹃花新品种的建议。

Investigation on Germplasm Resources of the Genus Rhododendron L.（Ericaceae） in the Yingwushan Mountains of Eastern Yunnan

Field surveys and data analysis were used to investigate the Rhododendron （Ericaceae） germ- plasm resources occurring in the Yingwushan Mountains, eastern Yunnan. And the vertical and horizontal distribution of the resources of Rhododendron L. were recored. Accordong to the survey and collate infor- mation of Rhododendron species in Yingwu Mountain, the distribution pattern of the genus Rhododendron were researched. The results showed that 10 kinds of Rhododendron species growing from altitude of 2 000 to 2 400 m in Yingwushan Mountain. In addition, their horizontal distribution presents uneven pat- tern. On this basis, the habitat types, species traits （ including flowers, leaves, and its flowering period） and the use of tourism resources） of the 10 species （including subspecies and variants） were observed and investigated. Furthermore, the suggestion about enhancing the plant resource protection and develop- ment and utilization of genus Rhododendron, and strengthen the introduction and domestication of wild Rhododendron, recommendations about using the hybridization and modern biological technology to culti- vate new varieties were offered.