Full TGIF Record # 193270
Item 1 of 1
DOI:10.21273/HORTSCI.46.11.1550
Publication Type:
i
Refereed
Author(s):Cathey, Sarah; Kruse, Jason K.; Sinclair, Thomas R.; Dukes, Michael D.
Author Affiliation:Cathey and Kruse: Environmental Horticulture Department, University of Florida, Gainesville, FL; Sinclair: Department of Crop Science, North Carolina State University, Raleigh, NC; Dukes: Department of Agricultural and Biological Engineering, Gainesville, FL
Title:Tolerance of three warm-season turfgrasses to increasing and prolonged soil water deficit
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 46, No. 11, November 2011, p. 1550-1555.
# of Pages:6
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Breeding program; Paspalum notatum; Stenotaphrum secundatum; Water conservation; Water management; Zoysia japonica
Cultivar Names:Argentine; Floratam; Empire
Abstract/Contents:"Water management and turfgrass breeding efforts focused on water conservation can benefit from a better understanding of drought stress physiology because it relates to visual quality. In a repeated study under controlled conditions, 'Argentine' bahiagrass (Paspalum notatum Flugge), 'Floratam' st. augustinegrass [Stenotaphrum secundatum (Walt.) Kuntze], and 'Empire' zoysiagrass (Zoysia japonica Steud.) were subjected to drought stress as defined by the normalized transpiration ratio (NTR) of drying to well-watered plants. Differences in total water extracted from the soil as the soil dried to stomatal closure were not different among grasses; however, zoysiagrass had the slowest water use rate and less firing under increasing drought stress than the other grasses. Optical sensing of the normalized difference vegetation index from the turf canopies was not an effective predictor of drought stress for either study. In both studies, severe wilting and some firing occurred in bahiagrass and st. augustinegrass when NTR was 0.3. Zoysiagrass was not severely wilted until 0.1 NTR and exhibited little firing even after drying had continued for an additional 7 days past 0.1 NTR. After 7 days at well-watered status after drought stress to a severity of 0.1 NTR, all grasses were able to recover to an acceptable visual quality rating. This recovery from severe wilt and some canopy firing (except for zoysiagrass), indicating that a return to well-watered soil after severe stress, can result in acceptable turf recovery."
Language:English
References:20
See Also:See also related abstract "Transpiration response of warm-season turfgrasses to drying soil" 2011 International Annual Meetings: [Abstracts][ASA-CSSA-SSSA], 2011, p. 67332 R=192954 R=192954
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Cathey, S., J. K. Kruse, T. R. Sinclair, and M. D. Dukes. 2011. Tolerance of three warm-season turfgrasses to increasing and prolonged soil water deficit. HortScience. 46(11):p. 1550-1555.
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DOI: 10.21273/HORTSCI.46.11.1550
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