Figure 5 from: Popova P, Zarev Y, Shkondrov A, Krasteva I, Ionkova I (2020) Induction of flavonoid biosynthesis by in vitro cultivation of Astragalus glycyphyllos L. Pharmacia 67(2): 95-99. https://doi.org/10.3897/pharmacia.67.e50390

Figure 5 Total flavonoid contents (mg/g DW) of callus cultures of A. glycyphyllos, cultivated on culture mediums with half and double amount of Mg2+ and Ca2+ under light regimen of cultivation.