Full TGIF Record # 269838
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Web URL(s):https://archive.lib.msu.edu/tic/its/articles/1974sup16b.pdf
    Last checked: 03/15/2016
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Publication Type:
Content Type:Abstract or summary only
Author(s):Wood, G. M.
Author Affiliation:University of Vermont
Title:Some applications of color infrared photography to turfgrass research
Section:Turfgrass environment
Other records with the "Turfgrass environment" Section
Meeting Info.:Blacksburg, Virginia: June 19-21, 1973
Source:Abstracts of Papers Presented at the Second International Turfgrass Research Conference. 1973, p. 16-17.
# of Pages:2
Publishing Information:Blacksburg, Virginia: [International Turfgrass Society]
Keywords:TIC Keywords: Analytical methods; Color photography; Infrared photography; Research; Research equipment
Abstract/Contents:"The invisible infrared reflectance from grass varies from 12 to 87 percent, compared to the much more limited range of 5 to 12 percent for visible green. When white light strikes green grass most of the blue and red components are absorbed by the chlorophyll and grass reflects only a small portion of the incident light. The invisible infrared electromagnetic radiation is in contrast transmitted by the chlorophyll and strongly reflected by the internal structures of the grass leaf. Thus healthy turfgrass when photographed with false-color infrared film appears as a red of more intensity than the green produced with normal film. Turfgrass under stress, because of disease, wear, cold, drouth, poor nutrition, and many other factors, rapidly loses infrared reflectance. This results in significant tonal changes varying from purple to yellow when recorded on appropriate color film sensitive to the infrared radiation. Color infrared films, processed into slides or prints, thus can become a valuable means of recording the results of turfgrass experiments. Because infrared photographs also have a higher contrast than that produced by ordinary photography, more subtle differences can be revealed and illustrated. Black and white prints made from infrared colored slides were found to be exceptionally useful because of an even greater contrast that resulted. Infrared photography was used to record the results of wear, cold hardiness, disease, quality rating, and other turfgrass studies. Results, techniques, and utilization will be illustrated and discussed."
Note:This is an abstract only article!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wood, G. M. 1973. Some applications of color infrared photography to turfgrass research. Int. Turfgrass Soc. Annexe - Tech. Pap. p. 16-17.
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    Last checked: 03/15/2016
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