Meanings
- The phase of a two-phase circadian rhythm associated with light and expenditure of energy.
He postulated that light falling on the plant in the scotophil phase would inhibit flowering, and in the photophil phase, enhance flower production.
2013, Beatrice M. Sweeney, Rhythmic Phenomena in Plants, →ISBN, page 1182 more examples
It will be seen that light at one phase of the rhythm promoted flowering, and at the other phase inhibited it; thus there was a distinct manifestation of photophil and skotophil phases.
1975, Science progress - Volume 62, page 120Short-day effects were seen to result when light was restricted to the photophil, while long-day effects were produced when light encroached into scotophil (figure 1.2).
2010, Randy J. Nelson, David L. Denlinger, David E. Somers, Photoperiodism: The Biological Calendar, →ISBN, page 12
Cite this entry
photophil. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/photophil
“photophil.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/photophil. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “photophil,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/photophil.
Source: photophil on Wiktionary, CC BY-SA 4.0.