Phenylpropenoid content in high-altitude cultivated Rhodiola rosea L. provenances according to plant part, harvest season and age

In conclusion, this is the first systematic investigation for a high altitude cultivation of R. rosea demonstrating the major extent plant part, season and age influence absolute phenylpropenoid values. In contrary, relative phenolic compound profiles are mostly origin-determined, independent of cultivation conditions and site, and could be used for authentication in quality control.