TAILIEUCHUNG - Báo cáo lâm nghiệp: "Comparison between field performance of cuttings and seedlings of Eucalyptus globulus"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: "Comparison between field performance of cuttings and seedlings of Eucalyptus globulus" | Ann. For. Sci. 62 2005 837-841 INRA EDP Sciences 2005 DOI forest 2005090 837 Original article Comparison between field performance of cuttings and seedlings of Eucalyptus globulus Maria João GASPARa Nuno BoRRALHOb António Lopes GoMESa a Centro de Gestão de Ecossistemas UTAD Univ. Trás-os-Montes e Alto Douro Dep. Florestal 5000-911 Vila Real Portugal b RAIZ Instituto de Investigaẹão da Floresta e Papel Apartado 15 3801-501 Eixo Portugal Received 17 November 2003 accepted 28 June 2005 Abstract - The use of vegetative propagules of Eucalyptus globulus has been an important tool for the large scale deployment of improved plants. However given the reported morphological differences in root systems between cuttings and seedlings the question of whether such differences affect growth and wood quality needs to be addressed. The present study compares growth diameter and height and wood density pilodyn penetration of vegetatively propagated cuttings and seedlings from the same or related pedigrees. The relevance of age site and the interaction between propagation method and genetic improvement were also investigated. Trials included full-sib families in which each family was tested as cuttings and seedlings and progeny trials where parents were cloned and offspring derived from open pollinated crosses. The results show that there were no significant differences between the two types of plant material cuttings versus seedlings for the traits examined in the study. seedling cutting growth wood density Eucalyptus globulus Résumé - Comparaison des performances en forêt de plants issus de semis et de bouturage d Eucalyptus globulus. Le recours à la multiplication vegetative est un outil de premiere importance pour le déploiement des variétés améliorées d Eucalyptus globulus. Cependant l existence de caractéristiques morphologiques distinctes entre plants issus de semis et plants issus de boutures laisse planer des doutes sur leurs effets sur la croissance et la qualité .

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