中国盾叶薯蓣主要居群种质分析  

ANALYSIS ON QUALITY OF SOME MAIN POPULATIONS OF DIOSCOREA ZINGIBERENSIS IN CHINA

作　　者：黄春洪 杭悦宇[1] 周义锋[1] 郭可跃 李正 

机构地区：[1]江苏省中科院植物研究所江苏省植物迁地保护重点实验室,江苏南京210014

出　　处：《林产化学与工业》2003年第2期68-72,共5页Chemistry and Industry of Forest Products

基　　金：国家自然科学基金资助项目(30270108);江苏省农业科技攻关项目(BE2001356)

摘　　要：　应用反相高效液相色谱法(RP HPLC)对中国重要的甾体激素药源植物盾叶薯蓣具有代表性的9个野生居群和3个栽培居群的薯蓣皂苷元含量进行了测定,分析了经引种至江苏南京栽培1a后各居群薯蓣皂苷元含量变化、根茎的年生长量以及根茎含水量。结果表明:薯蓣皂苷元含量及其栽培前后含量变化与盾叶薯蓣种质有关,不同种质之间差异较大;栽培居群根茎生长量明显高于野生居群。薯蓣皂苷元含量及其变化与根茎中水分含量无明显相关性。薯蓣皂苷元含量的遗传稳定性应作为优良种质筛选的首要标准。By RPHPLC method,diosgenin content of Dioscorea zingiberensis collected from 9 wild populations and 3 cultured populations in China were determined.The change of diosgenin content and weight of rhizoma were also tested after introduced from their native sites to Nanjing,Jiangsu Province and cultivated for a year.The result showed that diosgenin content in a year and the annual enlargement of root vary among different populations.D.zingiberensis of cultured populations has significant root enlargement and less diosgenin content than those of wild populations.In addition,the diosgenin content and its change are not correlated with water content.It concludes that the hereditary maintance of diosgenin content should be considered as the principal criterion in selection of cultivar.

关 键 词：中国 盾叶薯蓣 反相高效液相色谱法 薯蓣皂苷元 居群 种质分析 药用植物 良种筛选 

分 类 号：Q949.95[生物学—植物学] S567[农业科学—中草药栽培]