Full TGIF Record # 144551
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DOI:10.1111/j.1365-2494.2004.00422.x
Web URL(s):http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.2004.00422.x/full
    Last checked: 01/31/2014
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http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.2004.00422.x/pdf
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Publication Type:
i
Refereed
Author(s):Russi, L.; Annicchiarico, P.; Martiniello, P.; Tomasoni, C.; Piano, E.; Veronesi, F.
Title:Turf quality and reliability in varieties of four turfgrass species in contrasting Italian environments
Source:Grass and Forage Science. Vol. 59, No. 3, September 2004, p. 233-239.
# of Pages:7
Publishing Information:Oxford, Blackwell Scientific Publications
Related Web URL:http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.2004.00422.x/abstract
    Last checked: 01/31/2014
    Notes: Abstract only
Keywords:TIC Keywords: Cultivar evaluation; Festuca arundinacea; Festuca rubra; Lolium perenne; Poa pratensis; Quality evaluation; Turfgrass quality
Abstract/Contents:"Turf quality is a complex character of fundamental importance in turfgrass evaluation. It takes into account aesthetic and functional aspects, and depends on several individual components which may vary with time. The use of a synthetic and simple quality score is necessary when evaluating large numbers of varieties. The quality of 110 turfgrass varieties belonging to four species (Lolium perenne, Poa pratensis, Festuca arundinacea and F. rubra) was assessed in the second and third years of growth 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). A randomized block design with three replicates was used, with varieties of the same species being blocked to facilitate the comparison within species. On average, F. rubra had the lowest turf quality score in summer, whereas the other species had the lowest quality score in winter and the highest quality score in summer and autumn. Components of variance were large for genotype (i.e. variety) main effects in all species. A variety Œ location interaction was found in F. arundinacea and higher-order interactions were also found for P. pratensis and F. rubra. Genotype Œ environment effects were small relative to genotypic effects in L. perenne. Variety Œ year interactions were small in all cases, whereas variety Œ location and variety Œ season interactions were greater. Stability of turf quality across sites, seasons and years was measured for each variety in terms of environmental variance, i.e. the variance of score values across sites, years and seasons. Mean scores and stability values of varieties were integrated into an index of reliability that estimated the lowest score value expected in 0·80 of cases. For each species, a small subset of highly reliable varieties could be identified. Implications of the results for the testing and breeding of varieties in Italy are discussed."
Language:English
References:17
Note:Tables
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 and reliability in varieties of four turfgrass species in contrasting Italian environments. Grass Forage Sci. 59(3):p. 233-239.
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DOI: 10.1111/j.1365-2494.2004.00422.x
Web URL(s):
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.2004.00422.x/full
    Last checked: 01/31/2014
    Access conditions: Item is within a limited-access website
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2494.2004.00422.x/pdf
    Last checked: 01/31/2014
    Requires: PDF Reader
    Access conditions: Item is within a limited-access website
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