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      Reaction of melon genotypes to Meloidogyne incognita and Meloidogyne javanica Translated title: Reação de genótipos de meloeiro a Meloidogyne incognita e Meloidogyne javanica

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          Abstract

          ABSTRACT Melon is one of the most economically important crops cultivated in Brazil, especially in the Northeast region. However, as its cultivation increases, phytosanitary problems arise, including those caused by nematodes, which are most effectively controlled using resistant cultivars. This study aimed at assessing the reaction of muskmelon genotypes, in terms of resistance to Meloidogyne incognita and M. javanica infestation. The experiment was conducted under greenhouse conditions using a completely randomized design, in a 2 x 15 factorial scheme, with six replications. A total of 15 muskmelon genotypes were evaluated and the 'Santa Cruz Kada' tomato was used as a susceptible control. The total number of eggs and juvenile nematodes in the roots and the reproduction factor were used to assess the genotype reaction. None of the genotypes was resistant to M. incognita. Eight genotypes were classified as resistant to M. javanica and promising for use in melon breeding programs.

          Translated abstract

          RESUMO O melão é uma das culturas de grande importância econômica no Brasil, especialmente para o Nordeste. Contudo, à medida que seu cultivo é intensificado, surgem problemas fitossanitários, dentre eles os causados por nematoides, cujo controle tem como medida mais efetiva o uso de cultivares resistentes. Objetivou-se avaliar a reação de genótipos de meloeiro quanto à hospedabilidade de Meloidogyne incognita e M. javanica. O ensaio foi conduzido em condições de casa-de-vegetação, utilizando-se delineamento inteiramente casualizado, em esquema fatorial 2 x 15, com seis repetições. Foram avaliados 15 genótipos de meloeiro, e o tomateiro 'Santa Cruz Kada' foi utilizado como padrão de suscetibilidade. Para avaliação da reação dos genótipos, utilizadram-se o número total de ovos e juvenis nas raízes e o fator de reprodução. Nenhum dos genótipos foi resistente a M. incognita. Oito genótipos foram classificados como resistentes a M. javanica e promissores para emprego em programas de melhoramento genético do meloeiro.

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          FAOSTAT

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            Sistema IBGE de Recuperação Automática

            (2009)
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              A new grafted rootstock against root-knot nematode for cucumber, melon, and watermelon

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                Author and article information

                Contributors
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                Journal
                pat
                Pesquisa Agropecuária Tropical
                Pesqui. Agropecu. Trop.
                Escola de Agronomia e Engenharia de Alimentos/UFG
                1983-4063
                March 2016
                : 46
                : 1
                : 111-115
                Affiliations
                [1 ] Universidade Estadual Paulista Júlio de Mesquita Filho Brazil
                Article
                S1983-40632016000100111
                10.1590/1983-40632016v4639603
                848b5b01-2256-419d-9be0-fa98acff328f

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

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                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=1983-4063&lng=en
                Categories
                AGRICULTURE, MULTIDISCIPLINARY
                AGRONOMY

                General agriculture,Horticulture
                Cucumis melo L.,melhoramento de plantas,nematoides de galha,plant breeding,root-knot nematodes.

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