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| DOI: | 10.21273/HORTSCI.35.3.467C |
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| Web URL(s): | https://journals.ashs.org/hortsci/view/journals/hortsci/35/3/article-p467C.xml?rskey=V27YIc
Last checked: 11/14/2019
Requires: PDF Reader
Notes: Item is within a single large file; Abstract only |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Stewart, J. Ryan;
Kjelgren, Roger |
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| Author Affiliation: | Department of Plants, Soils, and Biometerology, Utah State University, Logan, UT |
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| Title: | Detecting incipient water stress in buffalograss and Kentucky bluegrass through foliage temperature using low-cost infrared sensors |
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| Section: | Oral session I: Woody ornamentals/landscape/turf: Physiology & nutrition
Other records with the "Oral session I: Woody ornamentals/landscape/turf: Physiology & nutrition" Section
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| Meeting Info.: | 97th International Conference of the American Society for Horticultural Science, 23-26 July, 2000, Lake Buena Vista, FL |
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| Source: | HortScience. Vol. 35, No. 3, June 2000, p. 467. |
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| Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Water stress; Bouteloua dactyloides; Poa pratensis; Temperatures; Costs; Canopy temperature; Measurement; Methodology; Air temperature; Humidity; Soil water; Vapor pressure; Comparisons; Warm season turfgrasses; Cool season turfgrasses
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| Abstract/Contents: | "Infrared sensors were used to quantify canopy temperature and thus detect differences in incipient water stress between a cool-season grass [Kentucky bluegrass (KBG) (Poa pratensis)] and a warm-season grass [buffalograss (BG) (Buchloe dactyloides)]. The infrared sensors, connected to a datalogger, measured average hourly leaf-air temperatures (TL-TA) 1 m above eight replicate plots of Kentucky bluegrass and eight replicate plots of buffalograss. Air temperature and relative humidity from a nearby weather station were used to calculate the average hourly vapor pressure deficit (VPD). In late July, we ceased irrigating and measured TL-TA and soil water content while allowing the turf to dry down for 5 weeks. Soil water content was measured with a neutron probe. Both species exhibited a significant relationship between TL-TA and VPD. As the VPD increased, TL-TA decreased in both species (KBG rĀ² = 0.73, BG rĀ² = 0.71) on the 2nd day after an irrigation during well-watered conditions. An artifact was created on the first day after an irrigation as a result of excessive surface evaporation. KBG and BG were similar under well-watered conditions. KBG had a higher TL-TA after 4 to 5 days without irrigation. By contrast, BG did not have a highter TL-TA until 25 to 30 days without irrigation. Part of BG's drought avoidance was extraction of soil water down to 0.9 m vs. 0.45 m for KBG." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Stewart, J. R., and R. Kjelgren. 2000. Detecting incipient water stress in buffalograss and Kentucky bluegrass through foliage temperature using low-cost infrared sensors. HortScience. 35(3):p. 467. |
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| DOI: 10.21273/HORTSCI.35.3.467C |
| Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/35/3/article-p467C.xml?rskey=V27YIc
Last checked: 11/14/2019
Requires: PDF Reader
Notes: Item is within a single large file; Abstract only |
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MSU catalog number: SB 1 .H64 |
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