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| Web URL(s): | https://dl.sciencesocieties.org/publications/cs/articles/41/1/133
Last checked: 05/04/2017
https://dl.sciencesocieties.org/publications/cs/pdfs/41/1/133
Last checked: 05/04/2017
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | White, R. H.;
Engelke, M. C.;
Anderson, S. J.;
Ruemmele, B. A.;
Marcum, K. B.;
Taylor, G. R. |
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| Author Affiliation: | White and Taylor: Soil & Crop Sciences Department, Texas A&M University, College Station, TX; Engelke and Anderson: Texas A&M Research and Extension Center, Dallas, TX; Ruemmele: University of Rhode Island, Kingston, RI; and Marcum: Department of Plant Sciences, University of Arizona, Tucson, AZ |
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| Title: | Zoysiagrass water relations |
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| Section: | Turfgrass Science
Other records with the "Turfgrass Science" Section
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| Source: | Crop Science. Vol. 41, No. 1, January/February 2001, p. 133-138. |
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| Publishing Information: | Madison, WI: Crop Science Society of America |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Zoysia; Plant water relations; Cultivar evaluation; Drought resistance; Zoysia japonica; Zoysia matrella; Zoysia tenuifolia; Turf recovery; Water stress; Drought; Irrigation requirements; Leaf water potential; Turgor; Osmotic potential; Elasticity; Shoots; Clipping weight; Shoot growth; Dry weight
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| Abstract/Contents: | "Development of drought resistant, water-conserving cultivars continues to be an objective of turfgrass breeding programs. This study was conducted to determine for 15 zoysiagrasses [Zoysia japonica Steud., Z.matrellaḸ.) Merr., and Z. japonica Steud. x Z. tenuifolia Willd.] under greenhouse conditions (i) water relations characteristics, (ii) survival and recovery from extreme water stress, and (iii) the relationship of water relations characteristics to supplemental irrigation requirement determined in field studies. Leaf water potential at zero turgor (ΨLO) ranged from -1.76 MPa to -2.52 MPa before, and from -2.18 MPa to -2.59 MPa after water stress. Though ΨLO of genotypes such as Cavalier, El Toro, and Emerald decreased after stress, ΨLO of genotypes such as Korean Common and DALZ8515 did not change. Osmotic potential at full turgor (Ψπ100) of genotypes such as DALZ8501 and DALZ8506 was similar or increased after water stress but decreased for genotypes such as Crowne and Korean Common. The ΨLO and Ψπ100 after stress were negatively correlated with recovery from stress and positively correlated with irrigation requirement. Zoysia genotypes with low relative water content at zero turgor (RWC0), bulk modulus of tissue elasticity (Ε), and apoplastic water fraction (Β) demonstrated poor recovery from stress and required more supplemental irrigation. Cultivars such as Crowne, El Toro, and Palisades had the greatest recovery from stress, the least irrigation requirement, more negative ΨLO and Ψπ100, and positive RWC0, ε, and Β. This study demonstrates that improvements in biophysical as well as morphological traits should contribute to development of water-conserving Zoysiagrass germplasm." |
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| Language: | English |
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| References: | 13 |
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| See Also: | Other items relating to: Disasters - Drought |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
White, R. H., M. C. Engelke, S. J. Anderson, B. A. Ruemmele, K. B. Marcum, and G. R. Taylor. 2001. Zoysiagrass water relations. Crop Sci. 41(1):p. 133-138. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/cs/articles/41/1/133
Last checked: 05/04/2017
https://dl.sciencesocieties.org/publications/cs/pdfs/41/1/133
Last checked: 05/04/2017
Requires: PDF Reader |
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MSU catalog number: SB 183 .C7 |
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