TAILIEUCHUNG - Báo cáo khoa học: "The article in possible status of wood quality oak breeding programs (Quercus petraea Liebl and Quercus robur L)"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: The article in possible status of wood quality oak breeding programs (Quercus petraea Liebl and Quercus robur L). | 388s Ann Sci For 1993 50 Suppl 1 388s-394s Elsevier INRA Original article The possible status of wood quality in oak breeding programs Quercus petraea Liebl and Quercus robur L G Nepveu INRA Station de Recherches sur la Qualité des Bois Champenoux 54280 Seichamps France Summary The first part of the paper presents experimental results illustrating the very high level of phenotypic variability of the anatomical and physical characteristics of the wood Quercus petraea and Quercus robut density shrinkage color etc and technological properties namely suitability for slicing. Then some studies are reviewed which show that a large part of the phenotypic variability in the wood of oak is likely to be under genetic control individual level . In the second part of the paper 3 kinds of studies which are still needed for optimum selection of wood quality are proposed 1 defining realistic selection criteria for wood quality 2 confirming genetic control of wood quality criteria and 3 defining conditions for performing optimum selection for wood quality. This last point is treated in the context of possible developments in oak silviculture and regeneration. Quercus I wood I quality breeding selection Resume Place possible de la qualité du bois dans les programmes d amelioration généti-que des chênes Quercus petraea Liebl et Quercus robur L . Dans une premiere partie I auteur présente des résultats expérimentaux témoignant d une variabilité phénotypique très forte pour les caractéristiques anatomiques physiques densité retrait couleur du bois etc et technologiques notamment 1 aptitude au tranchage des bois de chênes rouvre et pédonculé. II poursuit en faisant état des résultats de quelques etudes qui montrent qu une partie importante de la variabilité phéno-typique serait sous contrôle génétique variabilité génétique intraprovenance . Dans une seconde partie les etudes préalables à la prise en compte de la qualité en matière de selection des chênes sont évoquées 1 definition de .

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