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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou765.pdf
Last checked: 10/18/2011
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| Publication Type:
| Refereed |
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| Author(s): | Foschi, Lara;
Volterrani, Marco;
Grossi, Nicola;
Miele, Sergio |
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| Author Affiliation: | Foschi, Volterrani and Grossi: Dipartimento di Agronomia e Gestione dell'Agroecosistema, Pisa, Italy; Miele: Centre for Research on Turfgrass for Environment and Sports, University of Pisa, Italy |
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| Title: | Monitoring relative water content in turf with canopy spectral reflectance |
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| Section: | Physiology and stress physiology
Other records with the "Physiology and stress physiology" Section
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| Meeting Info.: | Santiago, Chile: July 26-30 2009 |
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| Source: | International Turfgrass Society Research Journal. Vol. 11, No. Part 2, 2009, p. 765-778. |
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| Publishing Information: | Madison, WI: International Turfgrass Society |
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| # of Pages: | 14 |
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| Keywords: | TIC Keywords: Canopy reflectance; Cynodon dactylon; Drought stress; Festuca arundinacea; Fine fescues; Lolium perenne; Poa pratensis; Relative water content; Water stress
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| Abstract/Contents: | "Analysis of spectral reflectance is a valuable mean of assessing turfgrass canopy status. The present study was conducted to determine if canopy reflectance could be used to evaluate turfgrass water content. The study was carried out in pots on five turfgrass species: perennial ryegrass (Lolium perenne L.), tall fescue (Festuca arundinacea Schreb.), Kentucky bluegrass (Poa pratensis L.), fine fescue (Festuca rubra L.), and common bermudagrass (Cynodon dactylon [L.] Pers. var. dactylon). Canopy reflectance and relative water content (RWC) of leaves were measured during a water stress period induced by suspension of irrigation for 10 days. For all turf species except Kentucky bluegrass, days of water stress (DWS) showed high determination coefficients with reflectance in the PAR (R2>0.96) and with NIR/Red, NDVI, and simple ratio vegetation index (SR) computed using narrow-bands and broad-bands. Only Water Index (WI) showed a very high determination coefficient in Kentucky bluegrass (R2=0.92). High determination coefficients were found between DWS and the magnitude of the 1st derivative of reflectance curve in the ranges 495-550 nm and 550-650 nm, especially for tall fescue and perennial ryegrass. The correlation between RWC and WI was consistent for all species tested (r>0.81). The differences in spectral response over time allowed the detection of water stress effects on the turf, indicating that spectral reflectance can be used to supply information on turf water status." |
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| Language: | English |
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| References: | 42 |
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| See Also: | Other items relating to: Disasters - Drought |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Foschi, Lara, M. Volterrani, N. Grossi, and S. Miele. 2009. Monitoring relative water content in turf with canopy spectral reflectance. Int. Turfgrass Soc. Res. J. 11(Part 2):p. 765-778. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2009jou765.pdf
Last checked: 10/18/2011
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MSU catalog number: b2548899 |
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