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      Extração, embebição e germinação de sementes de tucumã (Astrocaryum aculeatum) Translated title: Extraction, imbibition and germination of Astrocaryum aculeatum seeds

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          Abstract

          A pesquisa teve como objetivo avaliar a influência da extração e da embebição das sementes sobre a germinação de tucumã (Astrocaryum aculeatum Meyer, Arecaceae). Após limpeza e secagem dos pirênios, o endocarpo foi quebrado e removido para liberação das sementes que, antes da semeadura, foram submetidas à embebição em água por 0, 3, 6, 9, 12 e 15 dias. A germinação foi superior a 58%, independentemente do período de embebição, confirmando a possibilidade de retirar o endocarpo sem agravar prejuízos à viabilidade das sementes. As sementes submetidas a nove dias de embebição, com 30% de água, tiveram maior germinação (70%) e índice de velocidade de germinação, com tempo médio de germinação de 104 dias. A remoção do endocarpo e a embebição das sementes aceleram e aumentam a germinação.

          Translated abstract

          The aim of this study was to evaluate the influence of the extraction and imbibition period on the germination of tucumã (Astrocaryum aculeatum Meyer, Arecaceae) seeds. After cleaning and drying the pyrenes, the endocarp was broken and removed to liberate the seeds that, before sowing, were soaked in water for 0, 3, 6, 9, 12 and 15 days. The germination was superior to 58%, confirming the possibility of extracting the endocarp without damaging the viability of the seeds. The seeds submitted to nine days of soaking, had a moisture content of 30%, obtained better germination (70%) and index of germination velocity, with mean time of germination of 104 days. The removal of the endocarp and the soaking of seeds accelerated and increased the germination.

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          Regras para análise de sementes

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            Speed of germination - aid in selection and evaluation for seedling emerge and vigor.

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              Frutas comestíveis da Amazônia

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                aa
                Acta Amazonica
                Acta Amaz.
                Instituto Nacional de Pesquisas da Amazônia (Manaus )
                1809-4392
                2006
                : 36
                : 2
                : 141-145
                Affiliations
                [1 ] Instituto Nacional de Pesquisas da Amazônia Brazil
                [2 ] Universidade Federal do Amazonas Brazil
                Article
                S0044-59672006000200002
                10.1590/S0044-59672006000200002
                79bbeb1b-1030-464a-97c3-003dfa530abd

                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=0044-5967&lng=en
                Categories
                AGRONOMY
                BIOLOGY
                ZOOLOGY

                General life sciences,Animal science & Zoology,Horticulture
                Palm,Palmeira,beneficiamento de sementes,dormência de sementes,seed processing,seed dormancy

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