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| Publication Type:
| Refereed |
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| Author(s): | Duncan, R. R.;
Carrow, R. N. |
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| Author Affiliation: | University of Georgia, 1109 Experiment Street, Griffin, Georgia, USA 30223-1797 |
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| Title: | Stress resistant turf-type tall fescue (Festuca arundinacea Schreb.): Developing multiple abiotic stress tolerance |
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| Section: | Physiology and ecology: Contributed papers
Other records with the "Physiology and ecology: Contributed papers" Section
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| Meeting Info.: | Sydney, Australia: 1997 |
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| Source: | International Turfgrass Society Research Journal. Vol. 8, No. Part 1, 1997, p. 653-662. |
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| Publishing Information: | Blacksburg, VA: International Turfgrass Society |
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| # of Pages: | 10 |
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| Keywords: | TIC Keywords: Festuca arundinacea; Stress; Resistance; Breeding; Low maintenance; Clay soils; Heat; Drought stress; Close mowing; Seed production; Disease resistance; Root strength
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| Abstract/Contents: | "Persistence of turf-type tall fescue (Festuca arundinacea Schreb.) in the southern subtropical and tropical regions of the U.S. is a significant problem. Mild winter conditions and the strong demand for high turf quality fescues have dictated the development of breeding programs to address the multiple abiotic stress problems inherent in the region. Low soil oxygen, high soil strength, low soil moisture, high air and soil temperatures, chemical toxicities, and nutrient deficiencies and/or imbalances are abiotic factors that directly affect tall fescue persistence. The breeding program at the University of Georgia simultaneously develops tolerance to multiple stresses by utilising screening/evaluation protocols with soil pH below 5.0, high bulk density (1.50 to 1.70 g cm⁻³) non-expanding kaolinitic clay soils, high temperatures exceeding 20°C/35°C (night/day), planting on slopes to enhance drought stress, and scalping/close mowing (<25 mm) to indirectly select for root plasticity (functional root value under stress), seed production, disease resistance, and overall persistence. Dual gene pools (Georgia-based KY31-type plants and Georgia-adapted New Jersey 'Rebel' pool) are subjected to the multiple stresses, 1 to 5% of the best turf-quality survivors are polycrossed, and new potential cultivars are evaluated in turf plots under low to moderate maintenance regimes. The result is superior turf-type tall fescues that persist in environments outside their traditional zones of adaptation, due to enhanced root plasticity, high temperature tolerance, and tolerance to other stresses." |
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| Language: | English |
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| References: | 17 |
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| See Also: | Other items relating to: Breeding for Drought |
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| Note: | Figures |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Duncan, R. R., and R. N. Carrow. 1997. Stress resistant turf-type tall fescue (Festuca arundinacea Schreb.): Developing multiple abiotic stress tolerance. Int. Turfgrass Soc. Res. J. 8(Part 1):p. 653-662. |
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