Definition of Photoperiodism

1. Noun. (biology) the growth, development and other responses of plants and animals according to the length of day and/or night ¹

¹ Source: wiktionary.com

Definition of Photoperiodism

1. [n -S]

Medical Definition of Photoperiodism

1. 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. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Photoperiodism

photooxidative
photooxidize
photooxidized
photooxidizes
photooxidizing
photooxygenation
photopaper
photopathy
photopatterned
photopatterning
photopeak
photopeaks
photoperceptive
photoperiod
photoperiodic
photoperiodism (current term)
photoperiodisms
photoperiods
photoperturbation
photoperturbations
photophase
photophases
photopheresis
photophilic
photophobia
photophobias
photophobic
photophone
photophones
photophonic

Literary usage of Photoperiodism

Below you will find example usage of this term as found in modern and/or classical literature:

1. Botanical Abstracts by Board of Control of Botanical Abstracts (1920)
"The term photoperiodism is suggested to designate the phenomena disclosed. A bibliography is appended.—WW Garner. 23. HAWTREY, S. 11. ..."

2. Productivity of Americas Forests and Climate Change by R. A. Birdsley (1996)
"... Forest Service, Pacific Northwest Research Station. 106 p. Wareing, PP 1953. Growth studies in woody species V. photoperiodism in dormant buds ..."

3. Weather and Rice: Proceedings of the International Workshop on the Impact of by International Rice Research Institute (1987)
"References Cited 1. Best, R. 1959. photoperiodism in rice. Field Crop Abstr. 12(2):85-93. 2. Chaudhary, TN, and BP Ghildyal. ..."

4. Biological Rhythms: Implications for the Worker by DIANE Publishing Company (1994)
"... Regulation of the Mammalian Pineal Gland," CIBA Foundation Symposium 17, photoperiodism, Melatonin and the Pineal, D. Evered and S. Clark (eds. ..."

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