TAILIEUCHUNG - Báo cáo lâm nghiệp: "Effects of artificial damage on the branching pattern of Nothofagus dombeyi (Nothofagaceae)"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài:"Effects of artificial damage on the branching pattern of Nothofagus dombeyi (Nothofagaceae)" | Ann. For. Sci. 63 2006 101-110 INRA EDP Sciences 2006 DOI forest 2005102 101 Original article Effects of artificial damage on the branching pattern of Nothofagus dombeyi Nothofagaceae Javier Guido PUNTIERIa b Marina STECCONIb Cecilia BRIONa Camilo MAZZINIb Javier GROSFELDa b a Departamento de Botánica Universidad Nacional del Comahue Quintral 1250 8400 Bariloche Argentina b Consejo Nacional de Investigaciones Científicas y Técnicas Argentina Received 18 November 2004 accepted 29 June 2005 Abstract - The effects of artificial damage on the branching pattern were studied for a natural population of Nothofagus dombeyi trees. In four independent experiments leaves buds distal internodes and or nodes were clipped from main-branch shoots. The sizes of shoots close to the site of damage were compared with those of control shoots. None of the treatments induced the outbreak of dormant proventitious buds or adventitious buds. Organ clipping from shoots in winter or early spring resulted in moderate increases in the growth of shoots close to the site of damage. The removal of a distal shoot in late spring caused an increase in the growth of a neighbour shoot. The size of the largest shoot relative to that of the other shoots developed on the same parent shoot seems to depend on the tree concerned. branching pattern herbivory plant architecture shoot growth compensatory response Résumé - Effets de facteurs traumatiques sur le mode de ramification de Nothofagus dombeyi Nothofagaceae . Les effets de traumatismes artificiels sur le processus de ramification ont été étudiés sur une population naturelle d arbres de Nothofagus dombeyi. Dans quatre experimentations indépendantes l apex de l axe les feuilles et ou les bourgeons axillaires de pousses annuelles sur des rameaux principaux ont été coupés et la modalité de ramification des pousses traitées comparée avec celle de pousses témoins. Aucun des traitements appliqués n a induit le débourrement de bourgeons proventifs .

• Báo cáo khoa học
• Báo cáo lâm nghiệp hay
• cách trình bày báo cáo
• báo cáo lâm nghiệp
• công trình nghiên cứu lâm nghiệp
• tài liệu về lâm nghiệp