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photosynthetically active radiation
Subject Category
W Physical and Chemical Sciences
That portion of the electromagnetic spectrum that is the energy source utilized for photosynthesis and generally coincides with the visible light spectrum (approximately 400-700 nm). PAR is characterized by the greater absorption of the blue light and red light wavelengths by pigments.
Definition Source
NAL Thesaurus Staff
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Used For
PAR (photosynthetically active radiation)
photosynthetic active radiation
Broader Term
Related Term
radiation use efficiency
solar radiation
radiación fotosintéticamente activa
Term Number