Photoperiodism

Photoperiodism Plants can be classed as short-day or long-day plants, however the critical factor in determining their activity is night length. *Plants can only determine the length of time of continuous darkness.* Phytochromes- leaf pigments that enable plants to sense light and dark periods. Photoperiodism- plants response to the length of light and darkness Short-day plants flower when the days are short (which also means the night period is longer than the critical length). Long-day plants flower when the days are long (which means a short night period less than a critical length). Day-neutral plants flower independently of photoperiod, but may require a period of cold. Link to Lecture Slides: https://drive.google.com/open?id=1l1wyIidFM4BOuu8HVV_yQ41KrMJike2q *Due to the description character limit the full work cited for "Photoperiodism" can be viewed at... https://drive.google.com/open?id=1xEosOfvkXZoSat6o9zJXsC_VnY4FxUK5

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