Resistance of Coffea canephora as a sustainable tool for Meloidogyne incognita control

Authors

  • Dvany Mamedes da Silva Universidade Federal de Rondônia/UNIR, Programa de Pós-graduação em Ciências Ambientais/PGCA, Rolim de Moura, RO, Brasil. https://orcid.org/0000-0002-7989-9949
  • José Roberto Vieira Júnior Empresa Brasileira de Pesquisa Agropecuária/Embrapa, Agroindústria Tropical, Fortaleza, CE, Brasil. https://orcid.org/0000-0001-7939-8119
  • Rodrigo Barros Rocha Empresa Brasileira de Pesquisa Agropecuária/Embrapa, Centro de Pesquisa Agroflorestal de Rondônia, Porto Velho, RO, Brasil. https://orcid.org/0000-0001-5275-5315
  • Marcelo Curitiba Espíndula Empresa Brasileira de Pesquisa Agropecuária/Embrapa, Centro de Pesquisa Agroflorestal de Rondônia, Porto Velho, RO, Brasil. https://orcid.org/0000-0001-7481-9746
  • Vaneide Araújo de Sousa Rudnick Universidade Federal de Rondônia/UNIR, Programa de Pós-graduação em Biodiversidade e Biotecnologia/BIONORTE, Porto Velho, RO, Brasil. https://orcid.org/0000-0003-0384-798X
  • Cléberson de Freitas Fernandes Empresa Brasileira de Pesquisa Agropecuária/Embrapa, Agroindústria Tropical, Fortaleza, CE, Brasil. https://orcid.org/0000-0001-5269-1139
  • Francisco Paiva Uchôa Universidade Federal de Rondônia/UNIR, Programa de Pós-graduação em Ciências Ambientais/PGCA, Rolim de Moura, RO, Brasil. https://orcid.org/0000-0001-6996-6047
  • Jéssica Silva Felix Bastos Universidade Federal de Rondônia/UNIR, Programa de Pós-graduação em Biodiversidade e Biotecnologia/BIONORTE, Porto Velho, RO, Brasil. https://orcid.org/0000-0001-8009-979X
  • Tamiris Chaves Freire Universidade Federal de Rondônia/UNIR, Programa de Pós-graduação em Biodiversidade e Biotecnologia/BIONORTE, Porto Velho, RO, Brasil. https://orcid.org/0000-0002-8938-3751
  • Simone Carvalho Sangi Universidade Federal de Rondônia/UNIR, Programa de Pós-graduação em Biodiversidade e Biotecnologia/BIONORTE, Porto Velho, RO, Brasil. https://orcid.org/0000-0001-7365-015X
  • Aline Souza da Fonseca Universidade Federal de Rondônia/UNIR, Programa de Pós-graduação em Biodiversidade e Biotecnologia/BIONORTE, Porto Velho, RO, Brasil. https://orcid.org/0000-0002-4019-3412

DOI:

https://doi.org/10.25186/.v17i.2018

Abstract

Many factors can affect coffee production, such as the root-knot nematode, a soil pathogen that can kill plants up to two years old. In infested areas, the cultivation of resistant genotypes is an economical and ecologically appropriate alternative. The present study aims to evaluate the resistance of Coffea canephora clones to Meloidogyne incognita. Evaluations were carried out in a greenhouse at Embrapa Rondônia (Porto Velho -RO) between September 2019 and November 2020. Genotypes were inoculated with M. incognita in four experiments with six replications with a completely randomized design. Root dry weight (RDW), the number of galls (NG) and the reproduction factor (RF) were evaluated. Eighty-six coffee clones were evaluated, with 50 clones showing resistance to Meloidogyne incognita and 36 clones showing susceptibility. Clones classified as resistant had an average reproduction factor of 0.33 with a range of 0.00 to 0.95, while clones classified as susceptible had an average reproduction factor of 3.48 with an amplitude ranging from 1.02 to
14.46. The number of galls was also higher in susceptible clones than in resistant clones. Considering the ten most cultivated clones, the genotypes GJ8, GJ25, P50, SK80, AS2, P42 and LB10 were classified as resistant, and the genotypes GJ3, GJ5 and SK41 were classified as susceptible. Taken together, the results identify resistant C. canephora clones as an important and sustainable tool for controlling M. incognita.

Key words: Genetic control; Plant resistance; Coffee.

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Published

2022-12-29

How to Cite

SILVA, D. M. da .; VIEIRA JÚNIOR, J. R.; ROCHA, R. B.; ESPÍNDULA, M. C.; RUDNICK, V. A. de S. .; FERNANDES, C. de F.; UCHÔA, F. P. .; BASTOS, J. S. F. .; FREIRE, T. C. .; SANGI, S. C. .; FONSECA, A. S. da. Resistance of Coffea canephora as a sustainable tool for Meloidogyne incognita control. Coffee Science - ISSN 1984-3909, [S. l.], v. 17, p. e172018, 2022. DOI: 10.25186/.v17i.2018. Disponível em: http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/2018. Acesso em: 26 jan. 2023.