“photoperiodism”的英文意思_释义_用法

单词

photoperiodism

释义

photoperiodism Biol.|fəʊtəʊˈpɪərɪədɪz(ə)m|
[f. prec. + -ism.]
The phenomenon whereby many plants and animals are stimulated or inhibited in breeding and other functions by the lengths of the daily periods of light and darkness to which they are subjected. Cf. photoperiodicity.
1920[see photoperiod].1929Weaver & Clements Plant Ecol. xiii. 328 Knowledge of photoperiodism, as these responses to length of day are called, should aid the plant breeder.1971Country Life 30 Dec. 1854/1 The commercial production of chrysanthemums has been revolutionized by the application of the principles of photo-periodism.1976Sci. Amer. Feb. 114/2 Most of the early investigations of photoperiodism in insects were concerned with the nature and location of the photo⁓receptors and the effector system.

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