. "Any process that activates or increases the frequency, rate or extent of the chemical reactions and pathways resulting in the formation of flavonoids." . . . . "positive regulation of flavonoid biosynthetic process" . "activation of flavonoid biosynthetic process" . "positive regulation of flavonoid anabolism" . "positive regulation of flavonoid biosynthesis" . "positive regulation of flavonoid formation" . "positive regulation of flavonoid synthesis" . "stimulation of flavonoid biosynthetic process" . "up regulation of flavonoid biosynthetic process" . "up-regulation of flavonoid biosynthetic process" . "upregulation of flavonoid biosynthetic process" . . . . .