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

Huang Chun

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Abstract

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.

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What this paper is about

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.

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Available abstract

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.

Key concepts: Diosgenin, Dioscorea, Cultivar, Chemistry, Botany, High-performance liquid chromatography, Horticulture, Biology

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