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- One of the primary effects of the photoperiod is flowering. Many plants exhibit photoperiodic responses, meaning their flowering is influenced by the length of light and darkness they experience. Short-day plants require longer periods of darkness to initiate flowering, while long-day plants require longer periods of light exposure.
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Feb 9, 2024 · This is achieved by using distinct mechanisms to detect different photoperiods: The flowering pathway measures photoperiod as the duration of light intensity, whereas the growth pathway measures photoperiod as the duration of photosynthetic activity (photosynthetic period).
Jan 24, 2022 · Photoperiod sensing enables plants to synchronize developmental processes, such as the onset of flowering, with a specific time of the year, and enables them to alleviate the impact of environmental stresses occurring at the same time every year.
Photoperiod optimization allows growers to maximize yields, schedule harvests, and ensure consistent plant growth. Flowering ornamentals like poinsettias, chrysanthemums, and kalanchoes are short day plants that initiate blooming and coloration when exposed to photoperiods under 12 hours.
May 1, 2000 · How does the action of a photoreceptor affect floral initiation? Given that both phytochrome and cryptochrome can enter the nucleus, there is the possibility that photoreceptors regulate expression of flowering-time genes without invoking second messages for signal transduction.
- Chentao Lin
- 2000
Jan 18, 2024 · Long-day (short-night) plants flower during the spring, when darkness is less than a critical length (often eight to 15 hours). Examples include spinach, Arabidopsis, sugar beet, and the radish flower. Flowering in day-neutral plants, such as the tomato, is not regulated by photoperiod.
Apr 1, 2003 · Recent studies indicate that the interaction between photoperiodic and temperature signalling pathways in the regulation of flowering time is mediated by the antagonistic effects of CO and FLC (a...
Qualitative response in plants happens when a particular photoperiod is an absolute requirement for the occurrence of flowering initiation. In contrast, quantitative response is when plant flower initiation takes place in both short and long days but one condition accelerates flowering initiation.
