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      Comportamento de duas cultivares de pessegueiro com interenxerto da ameixeira 'Januária' Translated title: Behavior of two peach cultivars with 'Januária' as a Japanese plum interstock

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          Abstract

          Os efeitos da utilização de interenxerto (filtro) da ameixeira 'Januária' (Prunus salicina L.) foram verificados em duas cultivares de pessegueiro (Prunus persica L.), Tropical e Ouromel-2. O porta-enxerto básico utilizado foi o pessegueiro 'Okinawa'. Foram avaliadas duas safras, respectivamente, na 4ª e 5ª folha de plantas enxertadas e estabelecidas no campo em 1994. O uso do enxerto intermediário diminuiu o vigor das plantas -- perímetro e área da secção do tronco, perímetro das pernadas e comprimento dos entrenós -- e aumentou o peso do fruto e a produção por planta, em comparação com as copas-controle enxertadas diretamente no 'Okinawa'. A eficiência produtiva, o índice de fertilidade, o florescimento e a frutificação efetiva foram incrementados com o uso do filtro. A interenxertia com ameixeira 'Januária' apresenta adequadas características de compatibilidade com o pessegueiro, como forma de compactar as copas e aumentar a produtividade e o tamanho do fruto.

          Translated abstract

          The effects of interstock with 'Januária' Japanese plum (Prunus salicina L.) were verified in the performance of peach (Prunus persica L.) cultivars Tropical and Ouromel-2. The basic rootstock used was 'Okinawa' peach. Two crops were evaluated at fourth and fifth leaves of plants established in 1994. The interstock caused decrease of the vigour of the plants -- perimeter and cross-sectional area of the trunk, perimeter of the primary branches and length of the internodes -- and increased fruit weight and production per plant, in comparison to the plant control without interstock budded on 'Okinawa'. Yield efficiency, fertility index, flowering and fruit set were increased with 'Januária' interstock. This interstock process presents an adequate characteristic of compatibility for the peach tree, as a form of compacting the plants, increasing the productivity and the fruit size.

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          Most cited references36

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          Instruções agrícolas para as principais culturas econômicas

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            The influence of dwarfing interstocks on the distribution and metabolism of xylem-applied [h]gibberellin a(4) in apple.

            The influence of an interstock of the dwarfing cultivar M9 and the nondwarfing cultivar MM115 on the distribution and metabolism of labeled gibberellic acid A(4) ([(3)H]GA(4)) of high specific radioactivity (5.18 x 10(10) becquerel per millimole) applied to the xylem of the rootstock in grafted apple (Malus x domestica Borkh.) trees was compared. Free [(3)H] GA-like metabolites of [(3)H]GA(4), including putative GA(1), GA(2), GA(3), and GA(34), as well as various (3)H-putative GA glucosyl conjugates were detected in stem segments from both cultivars. M9 interstocks reduced the total uptake of [(3)H]GA(4) and decreased the proportion of (3)H metabolites transported to the shoots and leaves of scions. The M9 interstock tissue and adjacent rootstock and scion tissue retained a much greater amount and a higher proportion of the label than did comparable tissue of the nondwarfing MM115 interstock. In addition, the amount and proportion of free [(3)H]GAs was higher, and the proportion of putative [(3)H]GA glucosyl conjugates lower, in M9 interstocks compared to MM115. These effects of the dwarfing interstock on GA distribution and metabolism indicate a significant role for GAs in any satisfactory explanation of the dwarfing mechanism in apple.
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              O nanismo do pessegueiro induzido pela enxertia no damasqueiro-japonês

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                Author and article information

                Journal
                pab
                Pesquisa Agropecuária Brasileira
                Pesq. agropec. bras.
                Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira (Brasília, DF, Brazil )
                0100-204X
                1678-3921
                April 2000
                : 35
                : 4
                : 757-765
                Affiliations
                [02] orgnameUSP orgdiv1ESALQ
                [01] Piracicaba SP orgnameUSP orgdiv1ESALQ orgdiv2Departamento de Horticultura jascarpa@ 123456carpa.ciagri.usp.br
                Article
                S0100-204X2000000400012 S0100-204X(00)03500412
                1b0694fe-18ea-4a63-a9a7-fd442fdc76a9

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 07 May 1999
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 38, Pages: 9
                Product

                SciELO Brazil

                Self URI: Texto completo somente em PDF (PT)
                Categories
                Fruticultura

                fruit set,compactação das copas,filtro,Prunus salicina,Prunus persica,compact plants,interstock,frutificação efetiva

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