African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6578

Full Length Research Paper

Reaction of watermelon accessions to Meloidogyne enterolobii

Jose Hamilton da Costa Filho
  • Jose Hamilton da Costa Filho
  • Specialized Unit in Agricultural Sciences, Escola Agrícola de Jundiaí (AJ) - Universidade Federal do Rio Grande do Norte (UFRN), Macaíba – RN, Brazil.
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Manoel Abílio de Queiroz
  • Manoel Abílio de Queiroz
  • Department of Agrotechnology and Social Sciences (DTCS), Universidade do Estado da Bahia, Juazeiro – BA, Brazil.
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Jose Mauro da Cunha Castro
  • Jose Mauro da Cunha Castro
  • Empresa Brasileira de Pesquisa Agropecuária (Embrapa Semiárido), Petrolina – PE, Brazil.
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Larissa de Oliveira Fontes
  • Larissa de Oliveira Fontes
  • Department of Agronomy, Universidade Federal do Piauí (UFPI), Bom Jesus – PI, Brazil.
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Hailson Alves Ferreira Preston
  • Hailson Alves Ferreira Preston
  • Specialized Unit in Agricultural Sciences, Escola Agrícola de Jundiaí (AJ) - Universidade Federal do Rio Grande do Norte (UFRN), Macaíba – RN, Brazil.
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Tarciana Silva Santos
  • Tarciana Silva Santos
  • Department of Plant Sciences, Universidade Federal Rural de Pernambuco, Brazil.
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Nickson Fernandes de Oliveira Carvalho
  • Nickson Fernandes de Oliveira Carvalho
  • Specialized Unit in Agricultural Sciences, Escola Agrícola de Jundiaí (AJ) - Universidade Federal do Rio Grande do Norte (UFRN), Macaíba – RN, Brazil.
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Saulo Candido de Andrade Silva
  • Saulo Candido de Andrade Silva
  • Specialized Unit in Agricultural Sciences, Escola Agrícola de Jundiaí (AJ) - Universidade Federal do Rio Grande do Norte (UFRN), Macaíba – RN, Brazil.
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Murilo Ferreira dos Santos
  • Murilo Ferreira dos Santos
  • Specialized Unit in Agricultural Sciences, Escola Agrícola de Jundiaí (AJ) - Universidade Federal do Rio Grande do Norte (UFRN), Macaíba – RN, Brazil.
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Debora Candido
  • Debora Candido
  • Specialized Unit in Agricultural Sciences, Escola Agrícola de Jundiaí (AJ) - Universidade Federal do Rio Grande do Norte (UFRN), Macaíba – RN, Brazil.
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  •  Received: 23 May 2016
  •  Accepted: 16 June 2016
  •  Published: 13 September 2018

Abstract

Identification of resistant germplasms is crucial for crop breeding. The aim of this study was to determine the reaction of accessions of watermelon plants to Meloidogine enterolobii using two experiments. In the first experiment, 20 accessions were evaluated, and in the second, the four most promising accessions were selected in the first experiment and two controls. Both experiments were implemented under a completely randomized design with ten replications. Each parcel consisted of a plastic pot containing autoclaved soil inoculated with 2,200 eggs of M. enterolobii. Among the variables studied, the egg number and reproduction factor showed a high positive correlation. The subsamples indicated a wide variation among and within each accession (p < 0.01). At the end, variation in the response among and within the accessions was observed regarding the reproduction factor. Of the accessions evaluated, accessions 9 and 10 exhibited potential for the implementation of breeding programs.

Key words: Citrullus lanatus, resistance, vegetable genetic capabilities