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Título

Genotype x Environment interaction in maritime pine families in Galicia, Northwest Spain

AutorZas Arregui, Rafael; Merlo, E.; Fernández López, Josefa
Palabras claveStability
Pinus pinaster
Progeny trial
Half-sibs
Genetic correlation
Fecha de publicación2004
EditorJ.D. Sauerländer's Verlag
CitaciónSilvae Genetica 53(4):175-182 (2004)
ResumenThe magnitude and practical importance of family x site interactions for growth and form traits in maritime pine (Pinus pinaster Ait.) breeding in the coastal area of Galicia (NW Spain) were analysed using several different techniques. Data were from 58 8-yr-old half-sib families planted across four sites. The analysis of variance and the ratio of interaction to family variance component showed the interactions to be quantitatively important for several traits, especially for volume and straightness. Genetic correlations between the same trait at different sites were moderate and highly variable, especially for certain pairs of sites. The results indicated that interactions are a consequence of few highly interactive families that may be particularly sensitive to environmental variation. The removal of these families from the breeding program appeared as an effective strategy to solve the nteractions. Results are discussed in relation to the stability parameter considered to identify the most unstable progenies.
Versión del editorhttp://sauerlaender-verlag.com/fileadmin/content/dokument/archiv/silvaegenetica/53_2004/53-4-175.pdf
URIhttp://hdl.handle.net/10261/101371
ISSN0037-5349
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