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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2013jou523.pdf
Last checked: 07/06/2015
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Milla-Lewis, Susana R.;
Kimball, Jennifer A.;
Claure, Tito E.;
Tuong, Tan D.;
Arellano, Consuelo;
Livingston, David P. III |
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| Author Affiliation: | Milla-Lewis, Kimball and Claure: Dept. of Crop Science; Livingston and Tuong: U. S. Dept. of Agriculture and Dept. of Crop Science; Arellano: Dept. of Statistics, North Carolina State University, Raleigh, NC |
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| Title: | Freezing tolerance and the histology of recovering nodes in St. Augustinegrass |
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| Section: | Physiology and stress physiology
Other records with the "Physiology and stress physiology" Section
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| Meeting Info.: | Beijing, China: July 14-19, 2013 |
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| Source: | International Turfgrass Society Research Journal. Vol. 12, 2013, p. 523-530. |
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| Publishing Information: | Madison, Wisconsin: International Turfgrass Society |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Cold resistance; Histology; Stenotaphrum secundatum; Survival
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| Cultivar Names: | Raleigh; Seville |
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| Abstract/Contents: | "St. Augustinegrass [Stenotaphrum secundatum (Walt.) Kuntze] is a coarse-textured turfgrass commonly utilized for its excellent shade tolerance. However, its range is limited primarily to the southeastern US, due to inferior cold tolerance in comparison to other warm-season grasses. 'Raleigh' and 'Seville', two St. Augustinegrass cultivars at either extreme of freezing tolerance, were evaluated with different cold-acclimation treatments and at two freezing temperatures for effects of nodal position and histological response of tissues within the node to freezing stress. Overall, Raleigh was significantly more freezing tolerant than Seville, but Seville appeared to have benefited more from cold-acclimation than Raleigh. Significant differences in survival rates were found in the nodal position of the stolon as well. Nodes in the mid region of the stolon were more freezing tolerant than immature nodes in the apical region and older nodes in the basal region. Histological analysis of nodes 14 days after freezing revealed that xylem vessels were plugged, possibly with phenolic compounds. In addition, the basipetal regions of the nodes appeared to have more structural damage than the apical region. Since new shoots are regenerated from meristematic regions within the node, the observation that new shoots were produced during recovery, despite severe damage to all surrounding tissue, suggests that the most freezing tolerant regions of the plant are meristematic regions within the node. Data generated in this study contribute to the understanding of freezing processes and survival in St. Augustinegrass which should aid in the development of methods that are more effective in the evaluation of freezing survival. |
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| Language: | English |
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| References: | 43 |
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| Note: | Pictures, b/w
Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Milla-Lewis, S. R., J. A. Kimball, T. E. Claure, T. D. Tuong, C. Arellano, and D. P. III Livingston. 2013. Freezing tolerance and the histology of recovering nodes in St. Augustinegrass. Int. Turfgrass Soc. Res. J. 12:p. 523-530. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2013jou523.pdf
Last checked: 07/06/2015
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MSU catalog number: b2394179 |
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