The PAL activ-ity is controlled by phytochrome with a low ratio of red to far-red light (R/FR) suppressing PAL and reducing anthocyanin synthesis (Man-cinelli, 1985).
The PAL activ-ity is controlled by phytochrome with a low ratio of red to far-red light (R/FR) suppressing PAL and reducing anthocyanin synthesis (Man-cinelli, 1985).