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《中国药典》2000年版规定,供药用麻黄为草麻黄Ephedra sinica Stapf、中麻黄Ephedra intermediaSchrenk et C.A.Mey.和木贼麻黄Ephedra equisetinaBge.。据文献报道,同一年不同品种的麻黄5～7月份为营养生长的旺盛时期,8月份后生长量逐渐衰退并进入麻黄碱的黑心化、积累期,以10月份至次年4月份含量为高。本研究项目时间从2000年4月至2001年11月间进行。本文对不同产地、不同生长期、不同移栽期麻黄进行比较测试,应测试项目
According to the 2000 edition of the Chinese Pharmacopoeia, medicinal ephedra is Ephedra sinica Stapf, Ephedra intermedia Schrenk et C.A. Mey., and Ephedra equisetina Bge. According to reports in the literature, different varieties of ephedra in the same year from May to July are vegetative periods. After August, the growth rate gradually declines and enters the blackening and accumulation period of ephedrine. From October to April, the content is high. . The research project was conducted from April 2000 to November 2001. This article compares and tests the ephedra in different production areas, different growth periods, and different transplanting periods.