Full TGIF Record # 268433
Item 1 of 1
DOI:10.1016/j.scienta.2015.11.042
Web URL(s):http://www.sciencedirect.com/science/article/pii/S0304423815303149
    Last checked: 02/03/2016
    Access conditions: Item is within a limited-access website
Publication Type:
i
Refereed
Author(s):Fuentealba, Maria P.; Zhang, Jing; Kenworthy, Kevin; Erickson, John; Kruse, Jason; Trenholm, Laurie
Author Affiliation:Fuentealba: Fort Collins, CO; Zhang, Kenworthy, and Erickson: Department of Agronomy; Kruse and Trenholm: Department of Environmental Horticulture, University of Florida, Gainesville, FL
Title:Transpiration responses of warm-season turfgrass in relation to progressive soil drying
Source:Scientia Horticulturae. Vol. 198, January 2016, p. 249-253.
# of Pages:5
Publishing Information:Amsterdam, Elsevier
Keywords:TIC Keywords: Breeding program; Comparisons; Cultivar evaluation; Cynodon dactylon; Cynodon dactylon x Cynodon transvaalensis; Cynodon transvaalensis; Drought resistance; Evapotranspiration rate; Plant water relations; Soil drying; Soil water content; Stenotaphrum secundatum; Transpiration; Warm season turfgrasses; Water conservation; Zoysia japonica; Zoysia matrella
Abstract/Contents:"Developing turfgrass with good drought resistant is a major goal in breeding programs when water scarcity is one of the long-term challenges facing the turfgrass industry. It has been shown that plant transpiration does not decline until available soil water drops below a certain threshold. Studying the species and genotypic differences in this threshold may lead to turfgrass that conserve water and retain turfgrass quality during drought. The objective of this study was to characterize and compare the transpiration response of 19 warm-season turfgrass genotypes and cultivars in five species during soil drying and well-watered conditions in the greenhouse. The species included in the study were: Zoysia japonica (Steud), Zoysia matrella L., common bermudagrass (Cynodon dactylon L. Pers. var.dactylon), African bermudagrass (Cynodon transvaalensis Burtt-Davy), hybrid bermudagrass (C. dactylon L. var. dactylon ^D#x C. translvaalensis Burtt-Davy) and St. Augustinegrass [Stenotaphrum secundatum (Walter) Kuntze]. They were evaluated for evapotranspiration rate (ET) and the sensitivity of transpiration to soil drying which was indicated by a break point of the fraction transpirable soil water (FTSW). The range of break point during dry down was from 0.25 to 0.41, and genotypes within species had different ET when well-watered (ETck). Break point values were not correlated with the number of days to the endpoint, where ET declined below 10% of the control. Instead, the number of days to endpoint was negatively correlated with ETck(-0.59, P ≤ 0.01). Thus, these results found significant variability in turfgrass break point and ETck that could contribute to water conservation, and a better understanding of drought responses in warm season turfgrasses."
Language:English
References:26
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ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Fuentealba, M. P., J. Zhang, K. Kenworthy, J. Erickson, J. Kruse, and L. Trenholm. 2016. Transpiration responses of warm-season turfgrass in relation to progressive soil drying. Scientia Horticulturae. 198:p. 249-253.
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DOI: 10.1016/j.scienta.2015.11.042
Web URL(s):
http://www.sciencedirect.com/science/article/pii/S0304423815303149
    Last checked: 02/03/2016
    Access conditions: Item is within a limited-access website
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