| photoperiod |
Day length or duration of daily exposure to light and dark periods, either natural or artificially manipulated.
출처: amsglossary.allenpress.com/glossary/browse
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| photoperiodism |
Response of an organism to the relative duration of dark and light periods. In plants, photoperiodism may affect flower or seed development, vegetative growth, formation of bulbs and tubers, leaf shape, character and extent of branching, abscission (dropping of vegetative growth, ie, protective seed sheath) and leaf fall, root development, dormancy, and death.
출처: amsglossary.allenpress.com/glossary/browse
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| photoperiod |
The number of hours of light per 24-hour period.
출처: www.peteducation.com/dict_alpha_listing.cfm
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| photoperiod |
Refers to the number of sequential hours that light and dark are applied to an aquarium. An attempt should be made to simulate an organism's prefered photoperiod. Increasing the photoperiod is not a substitute for improper light quality (spectrum) or intensity.
출처: members.aol.com/sierram/sierram3.htm
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| photoperiod |
Duration of the daylight period including twilight during a given day; the number of hours between sunrise and sunset.
출처: www.knowledgebank.irri.org/glossary/Glossary/D.htm
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