Topic: Photoperiodism
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What is Photoperiodism?
Photoperiodism is the used to describe a plant's ability to flower in response to it's photoperiod (day length). Some plants will only flower in the spring when the day length is increasing from short days to longer days (springtime). Tulip... Read More »
Source: http://answers.ask.com/Science/Biology/what_is_photoperiodism
What is photoperiod?
A Photoperiod is the number of hours of the day light between sunrise and sunset Read More »
Source: http://wiki.answers.com/Q/What_is_photoperiod
What is photoperiodicity?
The rhythm of certain biological phenomena such as hibernation and reproductive activity which are determined by the regularly recurring changes in light and dark caused by the annual passage of the earth about the sun. Read More »
Source: http://www.answers.com/topic/photoperiodicity
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Photoperiodism
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Photoperiod is the length of daylight. Plants and animals exhibit physiological and behavioral changes in response to longer or shorter photoperiods. Photoperiods interest biologists, agriculturists, aquaculturists, and others who work with...
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Source: http://www.ehow.com/how_6169639_calculate-photoperiod.html
Action spectra and photoreversibility experiments show that phytochrome is the pigment that receives the red light. Red light is the most effective color in interrupting the night-time portion of the photoperiod.
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Source: http://wiki.answers.com/Q/What_is_the_pigment_responsible_for_pho...
blah?!
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Source: http://wiki.answers.com/Q/How_does_photoperiodism_work
scientifical things. like plants.. im not sure if this is right so dont get mad!!
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Source: http://wiki.answers.com/Q/What_does_photoperiodism_refer_to
Plants use photoperiodism as a means to tell time. Special chemical receptors called phytochromes assume different forms in light and darkness, providing a way for plants to detect the day length and initiate germination, growth and floweri...
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Source: http://www.ehow.com/how_7338269_avoid-photoperiodism-planting-see...
hi
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Source: http://wiki.answers.com/Q/How_does_phytochrome_control_photoperio...
