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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou583.pdf
Last checked: 10/18/2011
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| Publication Type:
| Refereed |
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| Author(s): | Vergara, Georgina V.;
Bughrara, Suleiman S. |
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| Author Affiliation: | Vergara: Crop, Environment and Soil Science Division, International Rice Research Institute, Metro Manila, Philippines; Bughrara: Department of Crop and Soil Sciences, Michigan State University, East Lansing, Michigan |
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| Title: | Potential resistance to gray snow mold in colonial bentgrass germplasm and divergent natural creeping bentgrass clones |
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| Section: | Genetics and breeding
Other records with the "Genetics and breeding" Section
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| Meeting Info.: | Santiago, Chile: July 26-30 2009 |
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| Source: | International Turfgrass Society Research Journal. Vol. 11, No. Part 1, 2009, p. 583-597. |
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| Publishing Information: | Madison, WI: International Turfgrass Society |
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| # of Pages: | 15 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Agrostis tenuis; Clones; Disease resistance; Germplasm; Typhula blight
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| Abstract/Contents: | "Gray snow mold caused by Typhula incarnate Lasch is an economically important turf grass disease for which resistant creeping bentgrasses A. stolonifera L. have yet to be found. Establishing controlled screening procedures and identifying potential sources of resistance are important to creeping bentgrass cultivar development. To determine genotypic variation in response to gray snow mold infection and identify the most resistant genotypes, 890 creeping bentgrass samples collected from old northern Michigan golf courses, 6 commercial creeping bentgrass cultivars (L-93, Penn A4, Penn G2, Penncross, Providence, and Emerald), and 40 plant introductions (PI) comprised of 14 species of agrostis were tested using cold rooms and greenhouses. Most susceptible plants developed leaf chlorosis and water-soaked lesions that were visible 4 weeks post inoculation and progressed to a brown-decay by the end of the 6th week. Potentially resistant bentgrasses had less leaf injury than susceptible plants and recovered well after 10 days under greenhouse conditions. Comparison of performance using analysis of variance (ANOVA) with susceptible "Penncross" as the control indicated significant genotypic differences among bentgrasses both in disease ratings and ability to recover. Data suggest a polygenic type of resistance for leaf and crown. Twenty creeping bentgrass genotypes and three accessions of colonial bentgrass A. capillaries L. with effective resistance to snow mold were identified. Using detached leaf inoculation assay, PI 234685 exhibited localized necrotic lesions indicative of a hypersensitive response. The availability of promising bentgrass selections with potential resistance to snow mold would contribute greatly to advancement of turf grass breeding." |
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| Language: | English |
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| References: | 33 |
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| Note: | Pictures, b/w
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Vergara, G. V., and S. S. Bughrara. 2009. Potential resistance to gray snow mold in colonial bentgrass germplasm and divergent natural creeping bentgrass clones. Int. Turfgrass Soc. Res. J. 11(Part 1):p. 583-597. |
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MSU catalog number: b2548899 |
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