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Far-red light is light at the extreme red end of the visible spectrum, between red and infra-red light. Usually regarded as the region between 700 and 800 nm wavelength, it is dimly visible to some eyes. It is reflected or transmitted by plants because of the absorbance spectrum of chlorophyll, and it is perceived by the plant photoreceptor phytochrome.

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Far-red". A list of authors is available in Wikipedia.
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