V2EX photoperiodism

Photoperiodism

释义 Definition

光周期性;光周期反应:生物(尤其是植物,也包括部分动物)对昼夜长短(光照时长)变化产生的生理反应,常影响开花、休眠、繁殖、迁徙等。(在植物学语境最常见)

发音 Pronunciation

/fotopridzm/

例句 Examples

Photoperiodism helps many plants know when to flower.
光周期性帮助许多植物判断何时开花。

In controlled agriculture, adjusting light schedules can manipulate photoperiodism to trigger flowering even outside the natural season.
在可控农业中,调整光照时间表可以操控光周期反应,使植物在非自然季节也能开花。

词源 Etymology

由 **photo-**(光)+ period(周期、时段)+ -ism(现象、学说或性质)构成,字面意思是“与光照周期有关的现象”。该词常用于生物学/植物生理学中,强调“日长/夜长”作为信号对生物行为与发育的影响。

相关词 Related Words

文学作品 Literary Works

该词属于科学术语,更多见于科普与学术写作而非传统文学经典;常出现在植物学与生物节律相关著作中,例如:

  • Erwin Bünning 的生物钟与光周期研究相关著作(讨论光周期对植物发育的作用)
  • 各类植物生理学教材与专著(如讲授开花诱导、短日/长日植物机制的章节)
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