The majority of the dihydroflavones (7/9) and chalcones (2/4) in Subclasses 2 and 7 exhibited a declining trend from S1 to S5, whereas those in Subclasses 3 and 6 exhibited an increasing trend throughout this period.
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Combined analysis of inorganic elements and flavonoid metabolites reveals the relationship between flower quality and maturity of <i>Sophora japonica</i> L.
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