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      Qualidade fisiológica de semente de café arábica na presença de alumínio Translated title: Physiological quality of arabic coffee seeds in the presence of aluminium

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          Abstract

          O objetivo deste trabalho foi avaliar a germinação e o vigor da semente da espécie Coffea arabica, cultivares Catuaí Amarelo (IAC 62), Obatã, Oeiras e IAPAR 59, na presença de alumínio. O delineamento experimental foi o inteiramente casualizado, num arranjo fatorial (4 x 2), com quatro repetições, correspondendo às quatro cultivares e as soluções sem e com alumínio na forma de Al2(SO4)3.16H2O, na concentração de 45 mg.L-1. A semente foi semeada em rolos de papel-toalha, mantidos em BOD a 30º C, na ausência de luz. Não houve interação significativa entre as cultivares e o alumínio. Entre as quatro cultivares, a semente de Catuaí Amarelo (IAC 62) apresentou menores desempenho germinativo e vigor. A germinação da semente das cultivares de café arábica é afetada pelo Al3+ até a concentração de 45 mg.L-1. No entanto, nessa mesma concentração de Al3+, ocorre estimulo ao crescimento da raiz primária.

          Translated abstract

          The objective of this study was to evaluate the germination and vigor of the seed of Coffea Arabica L., cultivars Catuaí Amarelo IAC 62, Obatã, Oeiras, and IAPAR 59, in the presence of aluminum. A completely random design was used with four replications, in a 4 x 2 factorial outline, corresponding to the four cultivars and the absence and presence of Al in the form of Al2(SO4)3.16H2O, at the concentration of 45 mg.L-1,. The seeds were placed to germinate in paper-towel, incubated at 30 °C without light. There was no significant interaction between cultivars and aluminum. Among the studied cultivars, Catuaí Amarelo (IAC 62) was found to be the one with the most sensitive seeds to aluminium. The germination of the seeds of the studied cultivars was not affected by the concentration of 45 mg.L-1 of Al3+. However, at that Al+3 concentration, the growth of the primary root of the four cultivars was observed to be stimulated.

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          Most cited references34

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          Regras para análise de sementes

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            Mineral Nutrition of Hiher Plants

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              Identity of the rhizotoxic aluminium species

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Journal
                rbs
                Revista Brasileira de Sementes
                Rev. bras. sementes
                Associação Brasileira de Tecnologia de Sementes (Londrina )
                0101-3122
                2008
                : 30
                : 1
                : 66-73
                Affiliations
                [1 ] Universidade Federal do Espírito Santo Brazil
                [2 ] Universidade Federal do Espírito Santo Brazil
                Article
                S0101-31222008000100009
                10.1590/S0101-31222008000100009
                4d9cca65-047c-403d-b021-34350276dc61

                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=0101-3122&lng=en
                Categories
                PLANT SCIENCES

                Plant science & Botany
                Coffea arabica,alumínium,germination,vigor,toxicity,alumínio,capacidade germinativa,toxidez

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