How exposure to irregular light affects plant circadian rhythms

Scientists know that plants can actually "sense" day length, and "schedule" their growth to coincide with specific environmental conditions. These natural events are based on the circadian clock, a 24-hour system found in most biochemical and physiological processes. Plants grow better in circadian conditions that correspond to natural environments, but until now researchers have not understood how plants' internal circadian clocks respond to irregular lighting environments such as those found in many greenhouses.

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