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| Publication Type:
| Refereed |
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| Author(s): | Bourgoin, B. |
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| Author Affiliation: | INRA - Station d' Amélioration des Plantes Fourragéres, F-86600 Lusignan, France |
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| Title: | Variability of fine-leaved fescues (Festuca spp.) grown at low nitrogen levels |
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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. 611-620. |
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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: Fine fescues; Nitrogen fertilization; Fertilization rates; Low maintenance; Festuca rubra subsp. commutata; Festuca rubra subsp. rubra; Festuca ovina subsp. duriuscula; Variety trials; Dry weight; Nitrogen level; Clippings; Nitrogen efficiency; Color; Winter color; Red thread; Disease resistance; Turfgrass quality; Cultivar variation
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| Abstract/Contents: | "Turfgrass adaptation to reduced nitrogen fertilisation is now an important breeding aim. A trial with 4 species of fine-leaved fescues, Festuca nigrescens Lam. (Fn), F. rubra litoralis L. (Frl), F. rubra rubra L. (Frr) and F. duriuscula auct. (Fd), each represented by 6 cultivars and receiving 3 levels of nitrogen (0, 60 and 120 kg ha⁻¹ year⁻¹) was established in 1994 in order to examine inter- and intra-specific variation for different traits. Dry matter yield, nitrogen concentration, amount of nitrogen exported in clippings, nitrogen efficiency ratio, summer and winter greenness, Laetisaria fuciformis (red thread disease) tolerance, and turf quality were measured or noted during 1995. As expected, increasing nitrogen level was found to give generally favourable responses (except for red thread tolerance). Inter-specific variability was significant for all traits. For total dry matter yield, total nitrogen exported and nitrogen efficiency, species ranked as follows: Fd>Frr>Fn - Frl; for nitrogen content: Fn>Frl>Frr - Fd ; for summer greenness: Fd>Frl>Frr>Fn ; for winter greenness: Frl>Fn - Frr> Fd; for red thread tolerance: Fd>Frl - Fn>Frr and for turf quality Fd>Frl>Fn>Frr. Moreover for each of these traits, except for summer greenness in F. nigrescens, highly significant intra-specific variability was found. In general, the greatest variability between and within species was demonstrated at the lowest level of nitrogen. The consistency of the rankings for dry matter yield and clipping nitrogen export over the five cutting dates at the lowest (Nₒ) level of nitrogen underlines the importance of experimenting with turfgrass at very low nitrogen input levels. All these results point to the possibility of successfully breeding new cultivars better adapted to low maintenance conditions for turf and even agricultural purposes." |
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| Language: | English |
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| References: | 4 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Bourgoin, B. 1997. Variability of fine-leaved fescues (Festuca spp.) grown at low nitrogen levels. Int. Turfgrass Soc. Res. J. 8(Part 1):p. 611-620. |
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