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| Web URL(s): | https://conference.ifas.ufl.edu/iftbc2019/documents/IFTBC-2019-Online-Abstract-Book.pdf#page=85
Last checked: 04/04/2024
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Milla-Lewis, Susana R.;
Zuleta, M. C.;
Carbajal, E. M. |
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| Author Affiliation: | Milla-Lewis: Associate Professor and Crop and Soil Sciences Department, North Carolina State University, Raleigh, NC; Zuleta and Carbajal: Crop and Soil Sciences Department, North Carolina State University, Raleigh, NC |
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| Title: | Genetic improvement of centipedegrass through chemical mutagenesis |
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| Meeting Info.: | Lake Buena Vista, Florida: March 24-27, 2019 |
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| Source: | International Forage & Turf Breeding Conference. 2019, p. 85. |
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| Publishing Information: | Gainesville, Florida: UF/IFAS Office of Conferences & Institutes |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Centipedegrass [Eremochloa ophiuroides (Munro) Hack] is a warm-season perennial grass well adapted for turf across the southern United States. Centipede requires few inputs and is more tolerant to pests than most tufgrasses. As most U.S. centipedegrass germplasm originates from a single accession introduced from China in 1912, the genetic base for this species is narrow. A lack of morphological variation in the species has hampered breeding efforts and, as a result, few commercial cultivars are available in the market. The objective of this study was to use chemical mutagen ethyl methane-sulfonate (EMS) to generate genotypic and phenotypic variation for centipedegrass improvement. Seeds of cultivar 'Common' were treated with each 0, 0.125, 0.25, 0.375 and 0.5% (w/v) of EMS for 16 hours. Following mutagenic treatment of seeds, 50 regenerated plantlets from each of the three highest treatments were planted in the field and allowed to self-pollinate. A total of 3,000 M1 progenies were recovered and subsequently established at the Sandhills Research Station (Jackson Springs, NC) for initial evaluation of establishment rate, leaf texture, genetic color, drought tolerance, winter survival and seed head presence. In June of 2017, 85 lines were selected were selected for their superior performance across traits and established in replicated trials at the Upper Mountain Research Station (Laurel Springs, NC), the Lake Wheeler Turfgrass Field Laboratory (Raleigh, NC) and the Sandhills Research Station. Commercial cultivars 'Covington', 'Santee', 'Tifblair' and 'Common' were included as checks. Preliminary data analysis from 2017 and 2018 has identified seven lines (CEN 15116, CEN 151306, CEN 15453, CEN 15522, CEN 15773, GC 12844, and GC 12861) with superior turf quality, rate of establishment, and winter survival over the commercial checks evaluated in the trial. Additionally, these lines have been identified as having significantly higher seed yield. Evaluation of these lines for drought tolerance and establishment from seed will be conducted in 2019. Superior genotypes will advanced to regional trials to evaluate their potential for commercial release." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Milla-Lewis, S. R., M. C. Zuleta, and E. M. Carbajal. 2019. Genetic improvement of centipedegrass through chemical mutagenesis. International Forage & Turf Breeding Conference. p. 85. |
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| Web URL(s):
https://conference.ifas.ufl.edu/iftbc2019/documents/IFTBC-2019-Online-Abstract-Book.pdf#page=85
Last checked: 04/04/2024
Requires: PDF Reader
Notes: Item is within a single large file |
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