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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Funk, C. Reed;
Huff, David;
Murphy, James;
Ilnicki, Richard D.;
Clarke, Bruce B.;
Dickson, William K.;
Bara, Ronald;
Sun, Suichang;
Smith, Dirk;
Bara, Janice;
Prostak, Randy;
Betts, Lora |
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| Author Affiliation: | Rutgers University, New Brunswick, New Jersey |
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| Title: | Turfgrass breeding at Rutgers - 1992 progress report |
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| Section: | Oral presentations
Other records with the "Oral 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. 12. |
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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: Breeding; Germplasm; Disease resistance; Yellow ring; Poa secunda; Endophytes; Fine fescues; Agrostis; Poa; Acremonium; Dollar spot; Festuca rubra subsp. rubra; Festuca rubra subsp. commutata; Festuca ovina subsp. glauca; Festuca ovina subsp. duriuscula; Blissus; Poa pratensis; Hybridization
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| Abstract/Contents: | "1. Promising turfgrass germplasm was collected from old turfs in New Jersey, Georgia, and England. This included an extensive search for useful endophytes in fine fescues, Agrostis, and Poa. New sources of endophytes were found in Chewings fescue, strong creeping red fescue, and blue fescue. 2. Acremonium endophyte enhanced resistance to the dollar spot disease was observed in field trials of strong creeping red fescue, Chewings fescue, hard fescue, and blue fescue at Adelphia and North Brunswick. Both mycelial growth on and damage by the dollar spot fungus were greatly reduced on fine fescues containing endophyte. We have been unable, to date, to find an endophyte in perennial ryegrass which significantly enhances resistance to dollar spot. 3. Severe turf loss was observed on all endophyte-free hard fescues in the 1989 National Fine Fescue Test at Adelphia, NJ. Endophyte-infected hard fescues showed little or no damage. Large populations of chinch bugs were present on the damaged endophyte-free hard fescues and undoubtedly increased turf damage and slowed recovery. However, it is unlikely that chinch bugs were the primary or sole cause of the damage as they did not cause serious damage on adjacent endophyte-free plots of strong creeping red or Chewings fescue. The better cultivars of hard fescue continue to perform exceptionally well in all turf trials at Rutgers that receive continuous low maintenance. The severe turf loss on endophyte-free hard fescues in the 1989 seeded test might well have been associated with the excessive density of the hard fescues maintained at medium high fertility irrigation, and frequent medium close mowing. 4. Complete loss of endophyte infection was observed in over 200 interspecific hybrids of endophyte-infected big bluegrass X endophyte-free Kentucky bluegrass. Hybrid seedlings from crosses using endophyte-infected big bluegrass as the maternal parent contained an Acremonium endophyute a few months after germination. However, none of the hybrids contained endophyte after spending the winter in spaced-plant field nurseries at Adelphia. 5. Striking differences were observed among Kentucky bluegrass cultivars and selections in the rate and degree of recovery from the yellow ring disease. All Kentucky bluegrasses in the high maintenance national test established in 1990 at North Brunswick, NJ showed extensive and severe yellow ring disease symptoms beginning in early July of 1992. Many entries showed rapid recovery and displayed no visual symptoms by mid-September. However, many widely used cultivars including Baron, Gnome, Merit, and Kelly were continuing to show serious yellowing in late October." |
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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):
Funk, C. R., D. Huff, J. Murphy, R. D. Ilnicki, B. B. Clarke, W. K. Dickson, et al. 1993. Turfgrass breeding at Rutgers - 1992 progress report. Proc. Annu. Rutgers Turfgrass Symp. 2:p. 12. |
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