Solar PAR vs. solar total radiation transmission in a greenhouse

G. A. Giacomelli, K. C. Ting, S. Panigrahi

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


The availability of solar radiation in a bow-type, air-inflated, double polyethylene covered greenhouse was studied. Solar total radiation (0.285 to 2.8 μm waveband) transmittance and the transmittance of photosynthetically active radiation (solar PAR, 0.4 to 0.7 μm) were compared. The comparisons were reported for measurements made both at the glazing and the plant canopy levels. A relationship was previously determined for the available solar total radiation (W m-2) and solar PAR (μmol s-1 m-2), transmitted through the atmosphere. This report focuses on the effects of glazing and structure on transmitting ambient solar radiation and the development of a relationship for transmittance of solar total radiation (W m-2) versus solar PAR (μmol s-1 m-2) between the two wavebands.

Original languageEnglish (US)
Pages (from-to)1540-1543
Number of pages4
JournalTransactions of the American Society of Agricultural Engineers
Issue number5
StatePublished - Sep 1988

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)


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