Bangaman
Active Member
We know that the ability to anticipate light/dark cycles gives organisms a fitness advantage. It is common sense that most organisms have the innate ability to measure time. In fact, most organisms us included do not only for instance react to sunrise but, rather, our bodies anticipate the dawn and adjust their biology accordingly.
This is because organisms including plants have environmental time cues, called zeitgebers (German for time givers). These little buggers are "hard-wired" via DNA to the earth's 24 hour rotation and they have the ability to reset the 'clock' as a function of the time of day, position of the sun /angle of light(external or environmental cues, think jet-lag ). For example, If the zeitgebers for light intensity along with a specie specific percent of other zeitgebers read change, the others follow suite after a moment of adjustment. The specie specific percent for plants is relatively low. Therefore you set the plant's rhythms with just length of light intensity
This is because organisms including plants have environmental time cues, called zeitgebers (German for time givers). These little buggers are "hard-wired" via DNA to the earth's 24 hour rotation and they have the ability to reset the 'clock' as a function of the time of day, position of the sun /angle of light(external or environmental cues, think jet-lag ). For example, If the zeitgebers for light intensity along with a specie specific percent of other zeitgebers read change, the others follow suite after a moment of adjustment. The specie specific percent for plants is relatively low. Therefore you set the plant's rhythms with just length of light intensity