Zhang Yua

Biochemical Engineering College, Beijing Union University, Beijing 100023, China

chitooligosaccharides;mitiorrhiza;salvia;bge;plant growth regulators;secondary metabolite

[Objective]The aim was to study the effect of chitooligosaccharides plant growth regulators on the growth and secondary metabolites of Salvia mitiorrhiza Bge..[Method]The growth of Salvia mitiorrhiza Bge.and the cumulation of its secondary metabolites tanshinone ⅡA were observed after the seed-dressing and foliar-spraying application of different concentrations of chitooligosaccharides plant growth regulator.[Result]Chitooligosaccharides plant growth regulator significantly improved the content of tanshinone ⅡA and it could promote the plant and root growth of Salvia mitiorrhiza Bge.at an optimum concentration.[Conclusion]The study was of great value and significance to expose the formation and accumulation mechanism of the cumulative effect of chitooligosaccharides plant growth regulators on active ingredient,improve the theoretical and technological system for the quality regulation of Chinese herbal medicines and the cultivation of medicinal plants,establish standardized cultivation techniques of high-quality Salvia mitiorrhiza Bge.,and promote the standardized and qualified cultivation of Chinese medicinal herbs.