Study on Optimal Harvest Time of Salvia miltiorrhiza Bunge f.alba
The dry matter accumulation of overground part and underground part of Salvia miltiorrhiza Bunge f .alba at different growing stages were measured and analyzed , and also the change rule of main effec-tive components ( tanshinone ⅡA and salvianolic acid B ) .Considering yield and effective components , the best harvest time was the first ten -day of November .
Salvia miltiorrhiza Bunge f .albaHarvest timeYieldEffective component