| photoperiodism |
Describes the alternating periods of light and darkness which African Violets and other plants need for peak flowering. In addition to receiving plenty of indirect light, particularly in the red range of the spectrum, African Violets need at least six hours of darkness each day. Red light is absorbed by the phytochrome pigment in the leaves which activates the production of florigen, the hormone which regulates flowering. ...
출처: www.optimara.com/optimaraglossary/p-phy.html
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| photoperiod |
Day length. Used to describe the relationship between phenology and episodes of light.
출처: www.fgcouncil.bc.ca/doc-glos.html
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| photoperiod |
Refers to the number of consecutive hours that light occurs in a day. In the aquarium, it is the number of hours that the lights are kept on.
출처: www.aqualink.com/basic/zglossa.html
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| photoperiod |
The relationship between the length of light and dark in a 24
출처: www.interiorgardens.com/glossary/glossary.html
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| photoperiod |
Duration of light, usually expressed in hours, within a 24-hour day
출처: www.cof.orst.edu/cof/teach/for442/glossary/gloss1....
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