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| Web URL(s): | https://scisoc.confex.com/crops/2015am/webprogram/Paper93105.html
Last checked: 11/23/2015 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | McCall, David S.;
Sullivan, Dana;
Wong, Alex T.;
Martin, Bruce;
Ervin, Erik H. |
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| Author Affiliation: | Ervin: Crop and Soil Environmental Sciences Dept; McCall: Virginia Tech, Blackburg, VA; Sullivan: TurfScout, LLC., Greensboro, NC; Wong: University of Pittsburgh, Blacksburg, VA [Pittsburgh, PA]; Martin: Clemson University, Florence, SC |
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| Title: | Influence of synthetic pigment light absorption on plant reflectance measurements |
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| Section: | C05 turfgrass science
Other records with the "C05 turfgrass science" Section
Turfgrass science: II
Other records with the "Turfgrass science: II" Section
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| Meeting Info.: | Minneapolis, Minnesota: November 15-18, 2015 |
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| Source: | ASA, CSSA and SSSA International Annual Meetings. 2015, p. 93105. |
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| Publishing Information: | [Milwaukee, Wisconsin]: [American Society of Agronomy and the Entomological Society of America] |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Colorants; Light relations; Normalized Difference Vegetation Index; Pigmentation; Product evaluation; Ratio Vegetation Index; Reflectance; Stress tolerance
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| Abstract/Contents: | "The use of synthetic pigment products on golf playing surfaces has increased dramatically by golf course superintendents to provide added green color and improve stress tolerance. Most turf colorants are synthesized from various phthalocyanine pigments, which share visible spectral properties with healthy turf. Vegetation indices, such as normalized difference (NDVI) and simple ratio (RVI), are commonly used by researchers to quantify plant health or turf quality. Research reports have indicated that turf canopy reflectance is sometimes positively and sometimes negatively impacted by synthetic pigments. The specific spectral wavelength utilized for vegetation indices varies by sensor type, which may explain these inconsistencies. A greater understanding of light absorption characteristics of synthetic pigments is needed. Therefore, the research objectives were to determine the spectral signature of synthetic pigments alone and to quantify their influence on light reflectance of treated turfgrass canopies. Narrow bandwidth (<3nm) reflectance was collected from across the visible and near infrared regions of the electromagnetic spectrum using a handheld field radiometer (PSR-1100, Spectral Evolution, Inc., Lawrence, MA) to develop spectral signatures of pigments alone, healthy turf, and healthy turf treated with pigments. Results of this research indicate that synthetic pigments have a strong influence on light reflectance of certain wavelengths of near infrared light. The vegetation index should be carefully selected for objective turf measurements when synthetic pigments are applied." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
"418-32"
"Poster Number 816" |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McCall, D. S., D. Sullivan, A. T. Wong, B. Martin, and E. H. Ervin. 2015. Influence of synthetic pigment light absorption on plant reflectance measurements. Agron. Abr. p. 93105. |
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Last checked: 11/23/2015 |
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