Accession Number:

AD0680972

Title:

SPECTRAL LIGHT REQUIREMENTS OF ALGAE

Descriptive Note:

Final rept. 1 Jul 1965-1 Jul 1967

Corporate Author:

CHARLES F KETTERING RESEARCH LAB YELLOW SPRINGS OH

Personal Author(s):

Report Date:

1968-10-01

Pagination or Media Count:

224.0

Abstract:

Seventeen species of algae representing ten taxonomic divisions were individually grown in white light and light of nine separate 10 nm bandwidths corresponding to the major absorption peaks of known photoactive pigments. Energy levels of the incident light were equalized through the entire series, approximating 15,000 ergssq cmsec. Measurements of growth, pigmentation, photosynthesis, respiration, and where possible, morphology and structure were made following seven to ten days continuous exposure to the light regimes. The rates of photosynthesis and subsequent respiration were determined using the same full light regime as for growth. Light enhancement characteristics and wavelength requirements are shown for these parameters and compositions of specific illumination sources are suggested.

Subject Categories:

  • Anatomy and Physiology
  • Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE