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Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou573.pdf Last checked: 10/18/2011 Requires: PDF Reader |
Access Restriction: | Certain MSU-hosted archive URLs may be restricted to legacy database members. |
Publication Type:
| Refereed |
Author(s): | Reynolds, William Casey;
Li, Ruyu;
de Silva, Kanishka;
Bruneau, Arthur H.;
Qu, Rongda |
Author Affiliation: | Crop Science Department, North Carolina State |
Title: | Field performance of mutant and somaclonal variation lines of St. Augustinegrass [Stenotaphrum secundatum (Walt.) Kuntze] |
Section: | Genetics and breeding Other records with the "Genetics and breeding" Section
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Meeting Info.: | Santiago, Chile: July 26-30 2009 |
Source: | International Turfgrass Society Research Journal. Vol. 11, No. Part 1, 2009, p. 573-582. |
Publishing Information: | Madison, WI: International Turfgrass Society |
# of Pages: | 10 |
Keywords: | TIC Keywords: Cold resistance; Establishment rate; Gamma irradiation; Germplasm; Growth habit; Image analysis; Stenotaphrum secundatum; Tissue culture
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Abstract/Contents: | "St. Augustinegrass (Stenotaphrum secundatum) is commonly used for home lawns in the southeastern United States due to its superior shade tolerance, stoloniferous growth habit, and relatively low maintenance requirements. However, there is a need for improved varieties of St. Augustinegrass that possess semi-dwarf traits and improved winter survival in the transition zone. This study was conducted to evaluate the field performance of St. Augustinegrass entries in reference to their establishment rates, growth characteristics, and winter survivability. Entries included four somaclonal variants from tissue culture (SVC3, SV20, SV27, 904AT2), two mutants from gamma ray irradiation (GF, GF2), three germplasm collections (Elm4, Ray, and WS), and 'Raleigh' as a standard. Field plots were established at three locations by plugging ten entries in a randomized complete block design with three replications. Establishment rates were measured using digital imaging and line intersect methods. Data on disease incidence, winter survival, leaf length, internode length, and stolon length were also collected. While GF2, GF, WS, and Elm4 were the fastest to establish, only the semi-dwarfs GF2 and GF exhibited qualitative traits superior to Raleigh. Germplasm collections WS and Elm4 produced quality similar to Raleigh. SV27, 904AT2, and SV20 were also semi-dwarfs that possessed better qualitative characteristics than Raleigh, although SV27 and 904AT2 were consistently slower to establish. Winter survival was inconsistent between locations with only 904AT2 and SVC3 surviving better than Raleigh at one location. This research illustrates that semi-dwarf traits are genetically stable in field plantings and can consistently produce turf quality superior to Raleigh. Further research is still needed for potential development of new cultivars from these promising lines." |
Language: | English |
References: | 16 |
Note: | Tables Graphs |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Reynolds, W. C., R. Li, K. de Silva, A. H. Bruneau, and R. Qu. 2009. Field performance of mutant and somaclonal variation lines of St. Augustinegrass [Stenotaphrum secundatum (Walt.) Kuntze]. Int. Turfgrass Soc. Res. J. 11(Part 1):p. 573-582. |
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| Web URL(s): https://archive.lib.msu.edu/tic/its/articles/2009jou573.pdf Last checked: 10/18/2011 Requires: PDF Reader |
| MSU catalog number: b2548899 |
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