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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Sun, Suichang;
Clarke, Bruce B.;
Huff, David R.;
Betts, Lora L.;
Smith, Dirk A.;
White, James F. Jr. |
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| Author Affiliation: | Sun, Clarke, Huff, Betts and Smith: New Jersey Agricultural Experiment Station, Rutgers University, New Brunswick, New Jersey; White: Department of Biology, Auburn University, Montgomery, Alabama |
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| Title: | Endophyte-enhanced performance in fine fescues |
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| Section: | Poster presentations
Other records with the "Poster presentations" Section
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| Meeting Info.: | Cook College, Rutgers, NJ: January 15-16, 1993 |
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| Source: | Proceedings of the Second Annual Rutgers TurfgrassSymposium. Vol. 2, 1993, p. 24. |
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| Publishing Information: | New Brunswick, NJ: Center for Turfgrass Science, Cook College, Rutgers, The State University of New Jersey |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Endophytes; Fine fescues; Acremonium; Festuca rubra subsp. commutata; Festuca rubra subsp. rubra; Festuca ovina subsp. duriuscula; Dollar spot; Comparisons; Variety trials; Disease resistance; Ground cover; Blissus; Injuries; Choke disease; Breeding program; Acremonium typhinum
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| Abstract/Contents: | "Field performance was enhanced by Acremonium endophyte in Chewings, strong creeping red, and hard fescues. Striking differences in dollar spot disease resistance were observed in field trials of strong red fescue established in 1988, 1989 and 1991. Endophyte-infected (E+) cultivars and selections demonstrated less dollar spot damage and higher percent ground cover than endophyte-free (E-) cultivars and selections. Similar results were observed in Chewings and hard fescue trials established in 1985 and 1991. Heavy damage from summer deterioration was observed in E- but not E+ hard fescues in a 1989 seeded trial maintained under high nitrogen fertility. A large population of chinch bugs was present on the damaged, endophyte-free plots, however, they were not considered to be the primary cause of the damage. Endophyte-infected fine fescues were also observed to exhibit a brighter, lighter green color, lusher and denser turf under severe summer stress compared with a duller, darker green color and less attractive turf of E- plots. The benefits of Acremonium endophyte infection in fine fescue cultivars was observed only when the turf was growing under environmental and/or biological stresses. In some instances, the benefits may not be noticed for a long time period, possibly years. In the 1985 seeded trial, turf quality ratings of Chewings and hard fescues between E+ and E- cultivars and selections were similar until 1991, when substantial disease pressure from dollar spot was observed. Excessive choke disease reduces the usefulness of many sources of Acremonium endophyte in fine fescues. New strains of endophyte are being collected and evaluated for possible use in turfgrass breeding programs. Fine fescue plants, collected from established turfs in Georgia, New Jersey, and Washington State between September 1991 and May 1992 were examined under microscope for endophyte appearance. Eighty-two plants from a collection of 2,545 (3.2%) were found to be infected with Acremonium typhinum." |
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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):
Sun, S., B. B. Clarke, D. R. Huff, L. L. Betts, D. A. Smith, and J. F. Jr. White. 1993. Endophyte-enhanced performance in fine fescues. Proc. Annu. Rutgers Turfgrass Symp. 2:p. 24. |
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