【摘要】 目的:调查明党参种质资源现状,为筛选明党参优良种质提供依据。方法:对9个不同居群的野生明党参的群落生态环境、物候期、形态学特征等方面进行调查比较,并通过对9个居群的野生明党参和句容产栽培明党参的酯酶同工酶电泳酶谱探讨明党参野生居群间亲缘关系。结果:野生明党参资源正日趋减少,居群处于濒危状态。栽培明党参种子发芽率一般高于野生明党参种子,但野生明党参根中多糖含量一般高于栽培明党参。南京周边地区明党参多糖含量较高。不同产地明党参居群的存在着亲缘关系的地理学远近差异。结论:野生明党参资源处于濒危状态;南京周边地区特别是紫金山明党参的种质比较优良,可以作为进一步筛选优良种质的依据。更多还原

【Abstract】 Objective: To investigate the species resources of Changium smyrnioides.Method: Nine habitat populations of C.smyrnioides,included with population environment,time limit,morphological characters and so on were investigated.The phylogenetic relationship of different habitat populations of C.smyrnioides was studied by isoenzyme electrophoretic analysis of the EST.Result: The results showed that wild resources of C.smyrnioides were endangered.Seed germinating rate of cultivated plant was significantly higher than that of wild seed,but polysaccharide content in the root of wild species was significantly higher than that of cultivated plant.There existed a geographic phylogenetic relationship among different habitat populations.Conclusion: The wild C.smyrnioides resources are endangered.The wild C.smyrnioides around Nanjing city are better than the others,it could be used for the further selecting of species resources.更多还原