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DOI: | 10.2135/cropsci2006.09.0617 |
Web URL(s): | https://dl.sciencesocieties.org/publications/cs/pdfs/47/4/1611 Last checked: 11/16/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/cs/articles/47/4/1611 Last checked: 11/16/2016 Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Jiang, Yiwei;
Carrow, Robert N. |
Author Affiliation: | Jiang: Department of Agronomy, Purdue University, West Lafayette, Indiana; Carrow: Department of Crop and Soil Sciences, Georgia Experiment Station, University of Georgia, Griffin, Georgia |
Title: | Broadband spectral reflectance models of turfgrass species and cultivars to drought stress |
Section: | Turfgrass science Other records with the "Turfgrass science" Section
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Source: | Crop Science. Vol. 47, No. 4, July/August 2007, p. 1611-1618. |
Publishing Information: | Madison, WI: Crop Science Society of America |
# of Pages: | 8 |
Related Web URL: | https://dl.sciencesocieties.org/publications/cs/abstracts/47/4/1611 Last checked: 11/16/2016 Notes: Abstract only |
Keywords: | TIC Keywords: Spectral analysis; Site-specific management; Hyperspectral radiometry; Near infrared reflectance spectroscopy; Drought stress; Turfgrass quality; Leaf firing; Turf recovery; Shoot density; Visual evaluation; Color; Solar radiation; Models; Variety trials
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Abstract/Contents: | "The objective of this study was to assess canopy broadband spectral reflectance for turfgrasses under drought stress. Optimum turf quality (TQ) and leaf firing (LF) models were developed and compared based on two, three, and five wavelength bands. Sods of bermudagrass (Cynodon dactylon L. x C. transvaalensis Burtt-Davy), seashore paspalum (Paspalum vaginatum Swartz), zoysiagrass (Zoysia japonica Steud.), and St. Augustinegrass [Stenotaphrum secundatum (Walt.) Kuntze], and seeded tall fescue (Festuca arundinacea Schreb.) were used in this study with three cultivars each of bermudagrass, seashore paspalum, and tall fescue. Traditional vegetation indices (VIs) based on two bands within 660 to 950 nm were not as sensitive as three to five broadband models using a wider band range of 660 to 1480 nm. Optimum models were cultivar specific models, even within a species. The broadband wavelength at R900 and R1200 should be considered in drought sensitive spectral models since they were most often observed and exhibited high partial R2 values. These results suggest that mobile broadband spectral devices to map turfgrass responses to drought stress would benefit by the availability of three to five broadbands that could be user selected for optimum, cultivar specific models." |
Language: | English |
References: | 26 |
See Also: | Other items relating to: Disasters - Drought |
Note: | Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Jiang, Y., and R. N. Carrow. 2007. Broadband spectral reflectance models of turfgrass species and cultivars to drought stress. Crop Sci. 47(4):p. 1611-1618. |
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| DOI: 10.2135/cropsci2006.09.0617 |
| Web URL(s): https://dl.sciencesocieties.org/publications/cs/pdfs/47/4/1611 Last checked: 11/16/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/cs/articles/47/4/1611 Last checked: 11/16/2016 Access conditions: Item is within a limited-access website |
| MSU catalog number: SB 183 .C7 |
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