Full TGIF Record # 71038
Item 1 of 1
Publication Type:
Content Type:Abstract or Summary only
Author(s):Stewart, J. R.; Kjelgren, R. K.; Johnson, P. G.
Author Affiliation:Utah State University
Title:Effect of precision irrigation on little-leaf linden planted in buffalograss and Kentucky bluegrass
Section:Turfgrass science
Other records with the "Turfgrass science" Section
Meeting Info.:Minneapolis, MN: November 5-9, 2000
Source:2000 Annual Meeting Abstracts [ASA/CSSA/SSSA]. 2000, p. 159.
Publishing Information:[Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America
# of Pages:1
Keywords:TIC Keywords: Air temperature; Water stress; Poa pratensis; Bouteloua dactyloides; Humidity; Irrigation; Thermal infrared imagery; Vapor pressure
Abstract/Contents:"Infrared sensors were used to quantify canopy temperature and differences in incipient water stress between a cool-season grass (Kentucky bluegrass (KBG) (Poa pratensis)) and a warm-season grass (buffalograss (BG) (Buchloe dactyloides)) during summer 1999. The infrared sensors, connected to a datalogger, measured average hourly leaf-air temperatures (TL-TA) 1 m above eight replicate plots of both KBG and BG. Air temperature and relative humidity from a nearby weather station were used to calculate the average hourly vapor pressure deficit (VPD). Both species exhibited a significant relationship between TL-TA and VPD. KBG and BG were similar under well-watered conditions. After a month-long drydown, KBG had a higher TL-TA after 4-5 days. In contrast, BG did not have a higher TL-TA until 25-30 days. At the beginning of summer 2000, newly-transplanted little-leaf lindens were planted in each of the turf plots. Four replicate plots of both species were irrigated based upon the foliage temperature information collected in the first year. To determine the level of water stress and potential impact on growth, lindens planted in precision-irrigated BG and KBG plots were compared to lindens planted in well-watered BG and KBG. Tree caliper, stomatal conductance, and predawn and midday water potentials were used to measure differences."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Stewart, J. R., R. K. Kjelgren, and P. G. Johnson. 2000. Effect of precision irrigation on little-leaf linden planted in buffalograss and Kentucky bluegrass. Annu. Meet. Abstr. p. 159.
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MSU catalog number: S 1 .A58
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