The effects of planting density and cropping practice on yield and active ingredient content of Salvia miltiorrihza

Tung-Wu Chang

《花蓮區農業改良場研究彙報英文摘要版》 35輯 (2017/10) Pp. 31-31

摘要

The purpose of this research was to study the effects on the yield and active ingredient content at different planting densities and cropping practices of Salvia miltiorrihza. In comparison on the agronomic traits of different planting densities, planting density at 100×60 cm had the highest plant height, root weight, salvianolic acid B and tanshinone IIA content. Continuous monocropping will affect the yield and active ingredient content of S. miltiorrihza. The average fresh root weight per plant of L. chinense-S. miltiorrhiza rotation and A. acutiloba-S. miltiorrhiza rotation was 324 g and 307 g, and was 278 g and 189 g by two-year and three-year continuous monocropping. The salvianolic acid B of L. chinense-S. miltiorrhiza rotation and A. acutiloba-S. miltiorrhiza rotation was 63.2 mg g ^(-1) and 58.4 mg g ^(-1), and was 42.63 mg g ^(-1) and 41.5 mg g ^(-1) by two-year and three-year continuous monocropping. The tanshinone IIA of L. chinense-S. miltiorrhiza rotation and A. acutiloba-S. miltiorrhiza rotation was 2.8 mg g ^(-1) and 2.3 mg g ^(-1), and was 1.46 mg g ^(-1) and 0.54 mg g ^(-1) by two-year and three-year continuous monocropping. The rotation practice had advantages than continuous cropping in the root yield and active ingredients in S. miltiorrhiza.

關鍵字

Salvia miltiorrihza ； yield ； planting density ； cropping practice ； active ingredient