关键词: 天麻, 天麻素, 产地, 品种, 环境因子, 活性成分

Abstract: This article collected the active ingredients (Gastrodin-based),origins,varieties,environmental factors information of wild and cultivated Gastrodia elata nearly 10 years,and investigated the distribution characteristics of gastrodin in different producing areas and varieties by means of statistical data to analyze the effects of major environmental factors on the accumulation of gastrodin and the correlation between different active ingredients.The results showed that Gastrodin (063%) of wild Gastrodia elata was higher than the cultivar (0.47%),and Guizhou was the best wild area.The cultivated Gastrodia elata of Guizhou (0.65%),Hunan (0.66%),Chongqing (0.66%) was good.The purebred was higher than the hybrids ones,and Gastrodia elata f.viridis (0.57%) was the best.Annual precipitation had the greatest impact on gastrodin,and the effect of the hottest monthly mean temperature was the least;Gastrodin was negatively correlated with p-hydroxybenzyl alcohol and positively correlated with parishin A and B.This study can provide some reference for quality control and reasonable cultivation of Gastrodia elata.

Key words: Gastrodia elata Bl, gastrodin, origins, varieties, environmental factors, active ingredients