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      Influência de fungos micorrízicos arbusculares sobre o crescimento de dois genótipos de aceroleira (Malpighia emarginata D.C.) Translated title: Effect of arbuscular mycorrhizal fungi on growth of two genotypes of Malpighia emarginata D.C.

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          Abstract

          O objetivo deste trabalho foi avaliar o efeito da inoculação de fungos micorrízicos arbusculares (FMA) no crescimento da aceroleira (Malpighia emarginata D.C.). Estacas semi-lenhosas de dois genótipos de aceroleira (Barbados e Miró), com dois pares de folhas, foram plantadas para enraizamento das mudas. Após dois meses, montou-se um experimento em telado, inoculando dois isolados de FMA (Gigaspora margarita Becker & Hall e Glomus etunicatum Becker & Gerdemann) nessas mudas, em solo com 3 mg/dm³ de fósforo. Ao término do experimento (110 dias), observou-se que a inoculação de FMA proporcionou maior altura, aumentou a biomassa seca da parte aérea e a área foliar, e evidenciou correlações positivas entre algumas características de crescimento da planta e o número de esporos de FMA, em comparação com as plantas não colonizadas. Melhores respostas de crescimento foram obtidas nos dois genótipos com a inoculação de G. margarita. A concentração de P na parte aérea das plantas não variou significativamente entre os tratamentos com inoculação. A associação com FMA reduziu em pelo menos dois meses o tempo de produção de mudas dos dois genótipos de aceroleira.

          Translated abstract

          The objective of this research was to evaluate the effect of inoculation with arbuscular mycorrhizal fungi (AMF) on growth of seedlings of Malpighia emarginata D.C. Stakes of these two genotypes (Barbados and Miró), with two pairs of leaves, were planted for rooting of the seedlings. After two months, a greenhouse experiment was performed, inoculating two AMF species (Gigaspora margarita Becker & Hall and Glomus etunicatum Backer & Gerdemann) under the seedlings, in soils with 3 mg/dm³ phosphorus. At the end of the experiment (110 days), it was observed that the inoculation with AMF enhanced height, shoot dry mass, leaf area, and presented positive correlations among some plant growth characters and among those and number of AMF spores, in comparison with the uninoculated controls. The inoculation with G. margarita produced higher growth responses for both genotypes. The P concentration on the shoots did not vary among treatments. The symbiosis with AMF reduced at least in two months the time for seedlings production on both genotypes of Malpighia emarginata.

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          A rapid centrifugal-floration technibique for separating nematodes from soil.

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            Análise de crescimento de plantas

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              Plant Cell Responses to Arbuscular Mycorrhizal Fungi: Getting to the Roots of the Symbiosis.

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                pab
                Pesquisa Agropecuária Brasileira
                Pesq. agropec. bras.
                Embrapa Informação Tecnológica (Brasília )
                1678-3921
                June 2001
                : 36
                : 6
                : 893-901
                Affiliations
                [1 ] Universidade Federal de Pernambuco Brazil
                [2 ] Universidade Federal Rural de Pernambuco Brazil
                Article
                S0100-204X2001000600007
                10.1590/S0100-204X2001000600007
                dd285f8b-0866-4d37-a555-4022bc757236

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

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0100-204X&lng=en
                Categories
                AGRICULTURE, DAIRY & ANIMAL SCIENCE
                AGRICULTURE, MULTIDISCIPLINARY

                Animal agriculture,General agriculture
                fruit crops,inoculation methods,propagation materials,scions,fruteiras,inoculação,material de propagação,mudas

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