Rates of change of phytochrome as an essential factor determining photoperiodism in plants.
D008027:Light; D010507:Periodicity; D010834:Phytochrome; D051942:Phytochrome A; D018521:Plant Physiological Phenomena; D010944:Plants; D011506:Proteins / Q000378:metabolism*
D051942:Phytochrome A; D011506:Proteins; D010834:Phytochrome
LIGHT; PERIODICITY; PLANTS/physiology; PROTEINS/metabolism