scotophasen.
/ˈskəʊtəʊˌfeɪz/, U.S. /ˈskoʊtoʊˌfeɪz/, /ˈskoʊtəˌfeɪz/ 1. Botany. A stage in the development of a cereal crop (esp. wheat) where short day length is necessary. Now rare.
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the world > life > biology > biological processes > development, growth, or degeneration > [noun] > growth > stage of growth
stage1882
rhagon1887
sensitive period1905
scotophase1939
1939 Herbage Rev. 7 186 In earlier studies..the requirement of these plants [sc. wheat and other cereals] for darkness (the ‘dark’ phase or scoto-phase if the nomenclature is kept uniform) was not accounted for.
1941 Bot. Gaz. 102 734 Following the scoto-phase, vernalized plants of winter wheat require light and a high temperature.
2. Chiefly Biology. A period of darkness, esp. one that is artificially imposed; an artificial night.
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the world > life > biology > laboratory analysis > period > [noun]
logarithmic phase1914
prothrombin time1927
log phase1938
turnover time1943
survival time1947
pulse1960
scotophase1962
1962 Biol. Bull. 122 3 The period of light within the photoperiod is referred to as the photophase; conversely, the dark portion of the photoperiod is termed the scotophase.
1971 Nature 6 Aug. 401/2 Bovines restrained inside environmentally controlled stalls (24 ± 3° C; 70 ± 7% relative humidity; 12 h photophase: 12 h scotophase per 24 h photocycle).
2007 Florida Entomologist 90 715 Mating activity may be constrained during scotophase in part by cooler temperatures and lack of light.
This entry has been updated (OED Third Edition, June 2011; most recently modified version published online March 2022).
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n.1939