RESUMO
Objective: The root yield and active constituent contents were analyzed from four Salvia miltiorrhiza cultivars grown at three different locations( Zhuyang, Changqing, and Taian, Shandong Province) to determine the influence of environmental conditions and cultivars. . Methods: Phenolic acids and tanshinones were analyzed by HPLC method. Total phenolic acids content were analyzed by FolinCiocalteu method. Klason method was used to determine the content of lignin. Results: The root yield and the active constituent contents were significantly affected by different environments and cultivars of Salvia miltiorrhiza. The root yield was negatively correlated with active constituent contents. Salvia miltiorrhiza of Zhuyang location had the highest active constituent content, but it had the lowest root yield. Salvia miltiorrhiza of Taian location had the lowest active constituent contents, while it had the highest root yield. Salvia miltiorrhiza of Changqing location had relatively higher bio-yields of phenolic acids and tanshinones, which made it suitable for Salvia miltiorrhiza cultivation. Furthermore, compared with three other cultivars,105 cultivar could remain the salvianolic acid B stable, which indicating that 105 cultivar was possible related to resistances. Conclusion: The research provides a theoretical basis for the selecting of the optimal cultivar and the optimal environmental condition.