Diurnal Rhythm and Photoperiodism in Testicular Recrudescence of the House Finch
- 6 December 1963
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 142 (3597) , 1294-1295
- https://doi.org/10.1126/science.142.3597.1294
Abstract
A circadian rhythm in house finches appears to control the timing of the photoperiodic response of testicular recrudescence. A 6-hour light period coupled with dark periods of varying duration does not stimulate spermatogenesis in cycle lengths of 24, 48, and 72 hours, but initiates spermatogenesis in cycles of 12, 36, and 60 hours.This publication has 5 references indexed in Scilit:
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