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      Efeitos de substratos e recipientes utilizados na produção das mudas sobre a arquitetura do sistema radicular de árvores de cácia-negra Translated title: Effect of nursery substrata and containers on root system architecture of black wattles trees

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          Abstract

          O objetivo deste trabalho foi caracterizar a arquitetura do sistema radicular de árvores de acácia-negra (Acacia mearnsii) aos três anos após o plantio, em razão da combinação de oito tipos de recipientes e seis misturas de substratos usados na produção das mudas, levando-se em consideração atributos químicos e físicos do solo. As árvores foram plantadas no município de Cristal (RS), em solo Podzólico Vermelho Escuro, que apresentou alta densidade, baixo pH e excesso de alumínio. O tratamento que teve maior desenvolvimento radicular foi o fertil-pot, com substrato constituído por solo adubado, que diferiu estatisticamente dos tratamentos tubete redondo, com solo adubado + casca de acácia esgotada + vermiculita; paper pot, com solo adubado e laminado acondicionado em caixas de madeira, com solo adubado. O desenvolvimento e arquitetura das raízes no campo foram afetado pelo recipiente, mas não pelo substrato utilizado na fase de viveiro.

          Translated abstract

          The objective of this study was to characterize the architecture of the root system of black wattle trees (Acacia mearnsii), three years after planting, in relation to eight types of containers and six substrata used in the nursery, considering chemical and physical conditions of the soil. The experiment was carried out in Cristal (RS), in a Podzolic Dark Red soil. The soil presented high density, low pH and excess of aluminum. The treatment that induced larger root development was fertil-pot with fertilized soil, which differed significantly from the treatments round plug, with fertilized soil + acacia exhausted bark + vermiculite; paper pot, with fertilized soil and laminated in wood box, with fertilized soil. The development and the architecture of the roots in the field was affected by the container but not by the substrata used in the nursery.

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          Manual e métodos de análise de solo

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            Root architecture and tree stability

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              Methods of studying roots systems

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rarv
                Revista Árvore
                Rev. Árvore
                Sociedade de Investigações Florestais (Viçosa )
                1806-9088
                December 2005
                : 29
                : 6
                : 897-905
                Affiliations
                [1 ] Universidade Estadual de Londrina Brazil
                [2 ] UFPR
                [3 ] Tanagro S.A.
                Article
                S0100-67622005000600008
                10.1590/S0100-67622005000600008
                404fa15e-e80c-4788-b99d-dd418905ec85

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0100-6762&lng=en
                Categories
                FORESTRY

                Forestry
                propagation,Acacia mearnsii,root,Propagação,raiz
                Forestry
                propagation, Acacia mearnsii, root, Propagação, raiz

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