Resilience from perturbation of architectural scheme through planting varies largely in Pinus pinaster
| Autor: | Danjon, Frédéric, Danquechin Dorval, Antoine, Meredieu, Céline, Archereau, Tiphaine, Ségura, Raphaël, Issenhuth, Bernard, Giroux, Chantal, Barla, Pascal, Leferrec, Ambre, Cavaignac, Sébastien, Silande, Guillaume, Sedillot-Gasmi, Cédric |
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| Přispěvatelé: | Biodiversité, Gènes & Communautés (BioGeCo), Université de Bordeaux (UB)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité expérimentale Forêt Pierroton (UEFP), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire Bordelais de Recherche en Informatique (LaBRI), Université de Bordeaux (UB)-Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure d'Électronique, Informatique et Radiocommunications de Bordeaux (ENSEIRB), Institut Technologique Forêt Cellulose Bois-construction Ameublement (FCBA), International Society of Root Research (ISRR), DESAILLY, Marion |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | 11. ISRR meeting, 24-28 may 2021 11. ISRR meeting, 24-28 may 2021, May 2021, Missouri, United States |
| Popis: | International audience; Planting is a widespread propagation technique for woody plants. Container-growth and plantation is likely to heavily alter root architecture and thus modify anchorage. The Landes forest is located South-West France and produces 20% of french wood, it is mainly composed of intensively managed even-aged stands of P. pinaster (Ait). Most reforestation is made by planting genetically improved varieties, from seeded nursery stock. Soils are entic to albic spodosols which are acidic, sandy, and lenses of cemented spodic horizon can occur. Root system architecture is a key component in mechanical stability of trees. In their first 15 years, pines are mainly anchored by a rigid vertical and deep taproot (Danquechin Dorval 2016). Older trees are anchored by a rigid cage mainly composed of regularly spaced strong shallow roots from which branch secondary sinkers (Danjon et al. 2005). The main framework of the central part of the root system is established at 4-years-old with a clear identification of root types (Saint Cast et al. 2020). In this study, we characterize the deformations of root systems of P. pinaster saplings grown in containers and planted in the field. Incidence on root system architecture is analysed. |
| Databáze: | OpenAIRE |
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