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      Fungos micorrízicos arbusculares (FMA) e aspectos fisiológicos em cafeeiros cultivados em sistema agroflorestal e a pleno sol Translated title: Arbuscular mycorrhizal fungi and physiological aspects of coffee conducted in agroflorestal system and at full sun

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          Abstract

          O trabalho foi realizado em cafeeiros cultivados a pleno sol e consorciado com grevíleas em Vitória da Conquista (BA), em duas estações: seca e chuvosa, com objetivo de verificar a influência da arborização dos cafezais e da disponibilidade hídrica sobre a densidade de Fungos Micorrízicos Arbusculares (FMA) e ainda relacionar tais fatores com aspectos fisiológicos do cafeeiro. O experimento foi realizado em campos de observação com dois tratamentos e seis repetições, sendo as médias comparadas pelo teste t (p<0,05), relacionando os sistemas e as estações. Verificou-se maior número de esporos em época seca. A taxa de colonização radicular de FMA foi maior no cultivo consorciado, não diferindo em função da estação. O manejo dos cafeeiros sob sombra e a época seca contribuíram para maior teor de clorofila nas folhas. Maior valor absoluto do potencial hídrico foliar foi verificado quando avaliado na época chuvosa.

          Translated abstract

          The work was performed aiming to check the influence of the agroforestry system and water availability on the density of Arbuscular Mycorrhizal Fungi (AMF), and to correlate these factors with physiological aspects of coffee. This study was conducted in a full sun coffee field, where coffee plants were associated with grevilea during dry and rainy seasons. The experiment had two treatments and six replicates, and the resulting averages were compared by a t test at 5% of probability, comparing the systems and seasons. There was a rise in spore number in the dry season. Also the rate of root colonization of AMF was higher in intercropped cultivation but it did not differ between seasons. The shading of coffee plants in dry season promoted a raise of leaf Spad index. In the rainy season the leaf water potential had higher absolute value.

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            Celluloid angels: a research study of nurses in feature films 1900-2007

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              Nutrient supply, nutrient demand and plant response to mycorrhizal infection

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                brag
                Bragantia
                Bragantia
                Instituto Agronômico de Campinas (Campinas )
                1678-4499
                2010
                : 69
                : 1
                : 201-206
                Affiliations
                [1 ] Universidade Estadual do Sudoeste da Bahia Brazil
                Article
                S0006-87052010000100025
                10.1590/S0006-87052010000100025
                a269c4d2-6b08-40e8-a608-0e07b33045c3

                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=0006-8705&lng=en
                Categories
                AGRICULTURE, MULTIDISCIPLINARY

                General agriculture
                Grevillea robusta A. Cunn.,Coffea arabica L.,mycorrhizal,micorrizas
                General agriculture
                Grevillea robusta A. Cunn., Coffea arabica L., mycorrhizal, micorrizas

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