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Web URL(s): | https://dl.sciencesocieties.org/publications/cs/articles/44/5/1746 Last checked: 11/16/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/cs/pdfs/44/5/1746 Last checked: 11/16/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
Publication Type:
| Refereed |
Author(s): | Abraham, Eleni M.;
Huang, Bingru;
Bonos, Stacy A.;
Meyer, William A. |
Author Affiliation: | Abraham: Lab of Range Science, Aristotle University of Thessaloniki, Thessaloniki, Greece; Huang, Bonos, and Meyers: Department of Plant Biology and Pathology, Rutgers University, New Brunswick, New Jersey |
Title: | Evaluation of drought resistance for Texas bluegrass, Kentucky bluegrass, and their hybrids |
Section: | Turfgrass science Other records with the "Turfgrass science" Section
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Source: | Crop Science. Vol. 44, No. 5, September/October 2004, p. 1746-1753. |
Publishing Information: | Madison, WI: Crop Science Society of America |
# of Pages: | 8 |
Related Web URL: | https://dl.sciencesocieties.org/publications/cs/abstracts/44/5/1746 Last checked: 11/16/2016 Notes: Abstract only |
Keywords: | TIC Keywords: Drought resistance; Poa arachnifera; Poa pratensis; Hybrids; Genes; Drought stress; Physiology; Backcrossing
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Cultivar Names: | C-74; Midnight |
Abstract/Contents: | "Kentucky bluegrass (Poa pratensis L.; KBG) has good turf quality with adaquate irrigation, but moderate to low drought resistance. Interspecific hybridization of Kentucky bluegrass with Texas bluegrass (Poa arachnifera Torr.; TBG), a drought resistant grass native to Texas, has been made to transfer genes of drought resistance from TBG to KBG. The objectives of this study were (i) to investigate whether the hybrids have improved drought resistance compared with either TBG or KBG by examining physiological responses to drought stress; and (ii) to determine major physiological factors associated with recuperative ability of those plants from drought stress. Plants were exposed to drought stress by withholding irrigation for 42 d in a greenhouse. The experiment consisted of 29 fourth-generation backcrossed hybrids, one third-generation hydrid (BDF), two KBG parents (`C-74', `Midnight'), and one TBG parent. The genotypes classified into three cluster groups of drought resistance (high, moderate, and low) based on the responses of relative water content (RWC), electrolyte leakage (EL), and photochemical efficiency (Fv/Fm) to drought stress. The RWC and Fv/Fm declined with drought stress, but were maintained at higher levels in the high resistance group than the other group, while EL increased during drought and was lower in the high resistance group. Texas bluegrass, Midnight KBG, and two hybrids were ranked highest in drought resistance. Other hybrids varied in drought resistance, with more hybrids of BDF × Midnight ranked in the high drought resistance group than the hybrids of BDF × C-74. Among all physiological parameters examined, EL was the most sensitive indicator to drought stress, as demonstrated by its most rapid increase in response to the stress. High Fv/Fm and retaining of green leaves during drought stress contributed to fast recovery from drought stress following rewatering." |
Language: | English |
References: | 28 |
See Also: | Other items relating to: Disasters - Drought |
Note: | Figures Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Abraham, E. M,, B. Huang, S. A Bonos, and W. A. Meyer. 2004. Evaluation of drought resistance for Texas bluegrass, Kentucky bluegrass, and their hybrids. Crop Sci. 44(5):p. 1746-1753. |
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| Web URL(s): https://dl.sciencesocieties.org/publications/cs/articles/44/5/1746 Last checked: 11/16/2016 Access conditions: Item is within a limited-access website https://dl.sciencesocieties.org/publications/cs/pdfs/44/5/1746 Last checked: 11/16/2016 Requires: PDF Reader Access conditions: Item is within a limited-access website |
| MSU catalog number: SB 183 .C7 |
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