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| DOI: | 10.2135/cropsci2016.05.0316 |
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| Web URL(s): | https://dl.sciencesocieties.org/publications/cs/articles/57/supplement1/S-111
Last checked: 08/18/2017
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/cs/pdfs/57/supplement1/S-111
Last checked: 08/18/2017
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Refereed |
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| Author(s): | Zhang, Jing;
Kenworthy, Kevin;
Unruh, J. Bryan;
Poudel, Bishow;
Erickson, John E.;
Rowland, Diane;
Kruse, Jason |
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| Author Affiliation: | Zhang, Kenworthy, Poudel, Erickson, and Rowland: Dep. of Agronomy, Univ. of Florida, Gainesville, FL; Unruh: West Florida Research and Education Center, Univ. of Florida, Jay, FL; Kruse: Dep. of Environmental Horticulture, Univ. of Florida, Gainesville, FL |
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| Title: | Physiological responses to soil drying by warm-season turfgrass species |
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| Section: | International Turfgrass Society Conference
Other records with the "International Turfgrass Society Conference" Section
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| Source: | Crop Science. Vol. 57, No. Supplement 1, July/August 2017, p. S-111-S-118. |
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| Publishing Information: | Madison, Wisconsin: Crop Science Society of America |
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| # of Pages: | 8 |
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| Related Web URL: | https://dl.sciencesocieties.org/publications/cs/abstracts/57/supplement1/S-111
Last checked: 08/18/2017
Notes: Abstract only |
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| Keywords: | TIC Keywords: Cultivar evaluation; Cynodon dactylon; Growth analysis; Physiological responses; Soil drying; Stenotaphrum secundatum; Variety trials; Zoysia japonica; Zoysia matrella
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| Abstract/Contents: | "A study describing the overall physiological responses to drought and exploring the underlying mechanisms in multiple turfgrass species and genotypes is needed to make improvements in breeding for turfgrass species that are tolerant to water-limiting conditions. The objective of this study was to compare the differential canopy and physiological responses of 14 genotypes of warm-season turfgrasses during a controlled water withdrawal experiment in a greenhouse. Fourteen genotypes from St. Augustinegrass [Stenotaphrum secundatum (Walt.) Kuntz], Japanese lawngrass (Zoysia japonica Steud.), manillagrass [Zoysia matrella (L.) Merr.], and bermudagrass [Cynodon dactylon (L.) Pers.] were planted in acrylic tubes. Their responses in transpiration, gas exchange rate, and leaf firing to fraction of transpirable soil water were characterized through threshold and midpoint values. Threshold and midpoint variables are promising traits that can be exploited to breed for improved drought responses. Bermudagrass had the lowest threshold for leaf firing compared with other species, indicating that the initiation of leaf firing happened later in the drying cycle. This response may be associated with a lower threshold for relative gas exchange rate. 'Zeon' manilagrass exhibited better drought tolerance, which was indicated by its lower midpoint for leaf firing and similar characteristics in transpiration and gas exchange rates compared with 'Taccoa Green' manilagrass. Further study is needed to elucidate the underlying mechanism of leaf senescence delay in Zeon. No consistent drought mechanisms were found to be universal among the four warm-season species, suggesting that there are likely several different mechanisms that may be species dependent." |
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| Language: | English |
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| References: | 47 |
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| Note: | Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Zhang, J., K. Kenworthy, J. B. Unruh, B. Poudel, J. E. Erickson, D. Rowland, et al. 2017. Physiological responses to soil drying by warm-season turfgrass species. Crop Sci. 57(Supplement 1):p. S-111-S-118. |
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| DOI: 10.2135/cropsci2016.05.0316 |
| Web URL(s):
https://dl.sciencesocieties.org/publications/cs/articles/57/supplement1/S-111
Last checked: 08/18/2017
Access conditions: Item is within a limited-access website
https://dl.sciencesocieties.org/publications/cs/pdfs/57/supplement1/S-111
Last checked: 08/18/2017
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: b2211522a |
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