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The concentration of the bioactive compounds in the seven clones (M1, M2, M3, M4, M5, M6, and M7) of R. rosea: (A) salidroside; (B) rosavin; (C) rosin; (D) tyrosol; and (E) cinnamyl alcohol; samples dried at 70 °C (red color); freeze-dried at −130 °C (blue); mean concentration in mg g−1 ± standard deviation. * p < 0.05, ** p < 0.01, and *** p < 0.001 for all compounds compared to the samples dried at 70 °C.
