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photoperiodism, photoperiodicity

the effect on the growth and reproduction of plants or animals of varying exposures to light and darkness. Cf. thermoperiodism. — photoperiod, n.photoperiodic, adj.
See also: Biology
References in periodicals archive ?
Photoperiodicity and increasing salinity as environmental cues for reproduction in desert adapted rodents.
In present study some aspects of reproductive behavior of adult male helmeted guinea fowl were studied under the effect of seasonal photoperiodicity.
Breeding of mongoose has been reported to be seasonal, falling mainly during the period of increasing photoperiodicity and the longest days (Gorman, 2009).
The effect of artificial photoperiodicity and antiandrogen treatment on the antler growth and plasma levels of LH, FSH, testosterone, prolactin and alkaline phosphatase in the male white-tailed deer.