TAILIEUCHUNG - Báo cáo khoa học: "Axillary bud proliferation of 2 North American oak species: Quercus alba and Quercus rubra"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: Axillary bud proliferation of 2 North American oak species: Quercus alba and Quercus rubra. | 340s Ann Sci For 1993 50 Suppl 1 340s-343s Elsevier INRA Original article Axillary bud proliferation of 2 North American oak species Quercus alba and Quercus rubra OJ Schwarz 1 SE Schlarbaum 2 Department of Botany The University of Tennessee Knoxville TN 37996-1100 2 Department of Forestry wildlife and Fisheries Agricultural Experiment Station The University of Tennessee Knoxville TN 37901-1071 USA Summary Quercus alba white oak and Quercus rubra northern red oak were selected to develop in vitro plantlet regeneration methods from bud and embryo explants. Various hormonal combinations were applied to explants to induce axillary bud proliferation. Maximal multiple shoot production was obtained when an intermediate micromolar range of benzyladenine pM was applied alone or in combination with low concentrations of naphthaleneacetic acid pM . In vitro rooting of 1 Q alba microshoot was accomplished. axillary bud proliferation I Quercus in vitro I regeneration Resume Proliferation de bourgeons axillaires de 2 chênes nord-américains Quercus alba et Quercus rubra. Des methodes de multiplication in vitro à partir de bourgeons OU d embryons ont été développées. De nombreuses combinaisons hormonales ont été testées pour induire la proliferation de bourgeons axillaires Chez les explants. Les meilleurs résultats ont été obtenus avec une solution micromolaire de benzyl adenine variant de 0 44 pM à 4 44 pM appliquée seule OU en melange avec de I acide naphtalèneacétique 1 0-100 pM . L enracinement in vitro de microplants de Q alba a été obtenu. proliferation de bourgeons axillaires Quercus in vitro regeneration INTRODUCTION The genus Quercus contains some of the most commercially important hardwood species in the world. In North America Quercus alba L white oak and Quercus rubra L northern red oak are the 2 most valuable oak species used by the lumber and furniture industries. Veneer quality trees command a premium price and are a significant commodity in the .

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