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NALT Concept Space
U.S. Department of Agriculture

NALT Full

Concept information

  1. Fields of Study
  2. physics
  3. electricity and magnetism
  4. electromagnetic radiation
  5. light
  6. photosynthetically active radiation
  1. Fields of Study
  2. physics
  3. optics
  4. light
  5. photosynthetically active radiation

Preferred term

photosynthetically active radiation

Type

  • Topic

Definition

  • Information 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.

    Source: NAL Thesaurus Staff

    Type: Concept definition

Broader concept

Related concepts

Synonyms

  • PAR (photosynthetically active radiation)
  • photosynthetic active radiation

In other languages

URI

https://lod.nal.usda.gov/nalt/69904

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RDF/XML TURTLE JSON-LD Created 5/5/06, last modified 12/6/17