Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp quốc tế đề tài: " Comparison of three cold storage methods for Norway spruce (Picea abies Karst) bare root seedlings: consequences on metabolic activity of ectomycorrhizae assessed by radiorespirometry. | Ann Sci. For 1991 48 489-495 Elsevier INRA 489 Original article Comparison of three cold storage methods for Norway spruce P cea ables Karst bare root seedlings consequences on metabolic activity of ectomycorrhizae assessed by radiorespirometry K Al Abras F Le Tacon F Lapeyrie INRA Centre de Recherches Forestieres de Nancy Champenoux 54280 Seichamps France Received 3 December 1990 accepted 7 June 1991 Summary Bare root forest tree seedlings are very sensitive to environmental factors including cold storage. The metabolic activity of 2 types of ectomycorrhizae of Norway spruce seedlings after cold storage for 2 weeks under 3 experimental conditions was compared using radiorespirometry. The mycorrhizal type BOO had a lower metabolic activity before treatment and was more resistant to cold storage than the A12 type. These observations were in general agreement with previously published field experiments where BOO became dominant and A12 was suppressed after cold storage and transplanting. Ectomycorrhizal fungi could be selected according to these criteria for controlled nursery inocculation. storage at 4 C in polyethylene bags did not affect the metabolic activity of ectomycorrhizae unlike other storage conditions. seedlings cold storage ectomycorrhizae Norway spruce radiorespirometry nursery Resume Comparaison de trois methodes de conservation au froid de plants à racines nues d epicea commun Picea abies Karst . Consequences sur I activlté métabolique des ec-tomycorhizes. Les plants forestiers à racines nues sont particulièrement sensibles à tons les fac-teurs du milieu y compris durant les périodes de stockage à basse temperature. Les mycorhizes contrôlant la nutrition minerale du plant in situ les dommages qu elles subissent lors des operations de stockage sont très certainement une des composantes de la crise de transplantation. L activite métabolique de 2 types d ectomycorhizes associées à des plants d epicea common a été compares par radiorespirométrie aprởs .
