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| Web URL(s): | http://www.actahort.org/books/661/661_53.htm
Last checked: 04/2005
Access conditions: Item is within limited access website |
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| Publication Type:
| Report |
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| Author(s): | Russi, L.;
Annicchiarico, P.;
Martiniello, P.;
Tomasoni, C.;
Piano, E.;
Veronesi, F. |
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| Author Affiliation: | Russi: Dipartimento di Biologia Vegetale e Biotecnologie Agroambientali, Universita' degli Studi di Perugia, Perugia, Italy; Annicchiarico: Istituto Sperimentale per le Colture Foraggere, Lodi, Italy; Martiniello: Istituto Sperimentale per le Colture Foraggere, Foggia, Italy; Tomasoni & Piano: Istituto Sperimentale per le Colture Foraggere, Lodi, Italy; Veronesi: Dipartimento di Biologia Vegetale e Biotecnologie Agroambientali, Universita' degli Studi di Perugia, Perugia, Italy |
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| Title: | Turf quality of cool season grasses at low inputs: Reliability across years, seasons and sites of evaluation |
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| Section: | Turfgrass improvement
Other records with the "Turfgrass improvement" Section
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| Meeting Info.: | Proceedings of the First International Conference on Turfgrass Management and Science for Sports Fields, Athens, Greece, June 2-7, 2003 |
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| Source: | Acta Horticulturae. Vol. 661, November 2004, p. 387-392. |
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| Publishing Information: | The Hague: International Society for Horticultural Science |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Turfgrass quality; Visual evaluation; Quality evaluation; Cool season turfgrasses; Low maintenance; Cultivar evaluation; Variety trials; Lolium perenne; Poa pratensis; Festuca arundinacea; Festuca rubra; Seasonal variation; Genotypes
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| Geographic Terms: | Italy |
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| Abstract/Contents: | "Quality is a complex character of fundamental importance in turfgrass evaluation. It takes into account aesthetic and functional aspects, and depends on a number of individual components, such as uniformity, density, texture, growth habit, smoothness and colour, which may vary with time. The use of a synthetic, simple quality score is necessary when evaluating large numbers of varieties. The quality of 110 turf varieties belonging to 4 species (Lolium perenne L., Poa pratensis L., Festuca arundinacea Schreb. and F. rubra L.) was assessed across seasons of the second and third year of the crop cycle at three Italian locations, i.e., Lodi (Po Valley, continental climate), Perugia (central Italy, sub-Mediterranean climate) and Foggia (southern Italy, Mediterranean climate), using a visual score ranging from 9 (outstanding turf) to 1 (very poor turf). The experimental design was a Group Balanced Design with 3 replicates, grouping varieties within species to facilitate an optimal management of cutting procedures for each species. On average, F. rubra had the lowest quality in summer, whereas the other species had the lowest quality in winter and the highest quality in summer and autumn. Genotypic and genotype x environment (GE) interaction components of variance were estimated for each species. GE effects were about five times larger for P. pratensis, three times larger for F. rubra, two times larger for F. arundinacea and only about 0.75 times for L. perenne relative to genotypic effects. Relatively large GE effects were observed for variety x locations interaction in tall and fine fescues, variety x season interactions in L. perenne, F. rubra and P. pratensis, and higher-order interactions in P. pratensis. Stability of turf quality across sites, seasons and years was measured for each cultivar in terms of environmental variance. Mean and stability values of varieties were integrated into an index of reliability, estimating the lowest score value expected in 80% of the cases, thus identifying for each species, a small subset of highly reliable cultivars. |
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| ISBN: | 90 6605 306 2 |
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| Language: | English |
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| References: | 9 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Russi, L., P. Annicchiarico, P. Martiniello, C. Tomasoni, E. Piano, and F. Veronesi. 2004. Turf quality of cool season grasses at low inputs: Reliability across years, seasons and sites of evaluation. Acta Horticulturae. 661:p. 387-392. |
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| Web URL(s):
http://www.actahort.org/books/661/661_53.htm
Last checked: 04/2005
Access conditions: Item is within limited access website |
| 
MSU catalog number: SB 13 .A25 no. 661
MSU catalog number: SB 433 .I55 2003 |
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