| photoperiodism | <biology> Events triggered by duration of illumination or pattern of light/dark cycles: often the wavelength of the illuminating light is important as for example in control of circadian rhythm in plants. See: phytochromes. (18 Nov 1997) |
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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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| photoperiodism |
The length of the day triggers the seasonal responses of many animals. This is also the case for parrots. I have noted this for caiques. When I provide my breeders with light for 13 to 14 hours per day they usually go to nest and will breed all year round. If I keep their exposure to light at 12 or less they stop breeding. This has been better documented for Amazons (Millam, 1999).
출처: home.rochester.rr.com/thecaiques/glossary.htm
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| photoperiodism |
responses of plants to the relative lengths of light and dark cycles.
출처: www.hcs.ohio-state.edu/mg/manual/glossary.htm
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| photoperiodism |
The physiological response of an organism to the periodicity and duration of light and darkness which affects many processes including growth, flowering, and germination.
출처: www.na.fs.fed.us/spfo/pubs/silvics_manual/volume_2...
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| 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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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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