Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Post-transplant root and shoot development in Abies nordmanniana Spach. seedlings after whorl bud and branch pruning. | Ann. For. Sci. 63 2006 843-847 INRA EDP Sciences 2006 DOI forest 2006067 843 Original article Post-transplant root and shoot development in Abies nordmanniana Spach. seedlings after whorl bud and branch pruning Lillie ANDERSENa Steen SOERENSENb Hanne N. Rasmussenc a Department of Horticulture Danish Institute of Agricultural Sciences Kirstinebjergvej 10 5792 Aarslev Denmark b Poelvej 8 8340 Malling Denmark c Danish Centre for Forest Landscape and Planning Hoersholm Kongevej 11 2970 Hoersholm Denmark Received 8 March 2006 accepted 7 July 2006 Abstract - After lifting in a nursery 3-year-old seedlings of Abies nordmanniana were treated for improvement in new leader growth after transplanting. The treatments were A whorl subapical buds lateral buds at the stem and whorl branch tips removed B as A but with whorl branches removed at their junction to the stem and C untreated control seedlings. After transplanting in April plant samples were lifted in June July and September to determine the effect of treatments on root and shoot development. Root length and number of root tips were determined by scanning and computed image analysis. Height dry weight of shoot and root and ratio between these were determined. Removal of whorl and lateral buds and whorl branch tips had a negative effect on root and shoot growth after transplanting. Root length number of root tips and shoot dry weight were reduced but by September equaled the untreated control seedlings. Removal of whorl branches caused a significant reduction in both root length and shoot dry weight compared to untreated control seedlings. root length root shoot root tip scanning Résumé - Développement des racines et des pousses après transplantation de semis d Abies nordmunnianu Spach. après une taille des verticilles de bourgeons et de branches. Après arrachage en pépinière des semis âgés de 3 ans d Abies nordmanniana ont été traités pour une amélioration de la croissance de la pousse après transplantation. Les
