单语范例（未经PONS编辑处理）
英语
- Many flowering plants bloom at the appropriate time because of light-sensitive compounds that respond to the length of the night, a phenomenon known as photoperiodism.en.wikipedia.org
- As an unexpected benefit of the double wheat season, the new breeds did not have problems with photoperiodism.en.wikipedia.org
- Light regulates three major plant processes: photosynthesis, phototropism, and photoperiodism.en.wikipedia.org
- In addition, many plants also require both dark and light periods, an effect known as photoperiodism, to trigger flowering.en.wikipedia.org
- Greenhouse growers commonly exploit photoperiodism in plants to control whether the plants are in a vegetative or reproductive stage.en.wikipedia.org
- Many flowering plants use it to regulate the time of flowering based on the length of day and night (photoperiodism) and to set circadian rhythms.en.wikipedia.org
- Understanding the function of these receptors has helped plant biologists understand the signalling cascades that regulate photoperiodism, germination, de-etiolation, and shade avoidance in plants.en.wikipedia.org
- The word used to define this is photoperiodism, which is the response of an organism to seasonal changes in day length.www.register-herald.com
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英语