| photoperiod |
the amount of time per day that an organism is exposed to light (Morris 1992).
Ãâó: imnh.isu.edu/digitalatlas/bio/glostxt.htm
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| photoperiod |
The length of time an organism is daily exposed to light, especially with regard to how that exposure affects growth and development.
Ãâó: biology.usgs.gov/s+t/SNT/noframe/zy198.htm
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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).
Ãâó: home.rochester.rr.com/thecaiques/glossary.htm
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| photoperiodism |
responses of plants to the relative lengths of light and dark cycles.
Ãâó: 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.
Ãâó: www.na.fs.fed.us/spfo/pubs/silvics_manual/volume_2...
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