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Thesaurus Search Results

photosynthetically active radiation
Subject Category
W Physical and Chemical Sciences
Definition
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
RDF/XML Format:
http://lod.nal.usda.gov/nalt/69904.rdf
Persistent URI:
http://lod.nal.usda.gov/nalt/69904
Used For
PAR (photosynthetically active radiation)
photosynthetic active radiation
Broader Term
light
Related Term
photosynthesis
pigments
radiation use efficiency
solar radiation
Spanish
radiación fotosintéticamente activa
Term Number
69904