Assessment of Phaseolus vulgaris genotypes for resistance to Meloidogyne incognita

Authors

  • Bichi Sani Nasiru
  • José Feliciano Bernardes Neto
  • Thiago Lívio Pessoa Oliveira de Souza
  • Eder Marques
  • Mara Rúbia da Rocha

Abstract

Several nematodes have been reported to damage common bean, being the main one the root-knot nematode (Meloidogyne incognita). This study aimed to evaluate the reaction of 20 common bean genotypes against the infestation of M. incognita, in an experiment conducted under greenhouse conditions, in a completely randomized design. The plants were inoculated with 4,000 eggs + J2 of M. incognita and, at 60 days after inoculation, they were removed for evaluation of root and shoot fresh mass, nematodes per plant and per gram of root, and reproduction factor. The BGF0011762, BGF0011854, BGF0011861, BGF0011862, BGF0011987, BGF0012533, BGF0013294, BGF0013355, BGF0013875 and BGF0013955 genotypes were classified as resistant. The principal component analysis explained 91.22 % of the variability among the nematode reproduction variables (nematode per plant and per gram of root, and reproduction factor) and the common bean phenotypic variables. The root and shoot fresh mass showed a high correlation between themselves, but also manifested an inverse relationship with nematodes per plant and nematode density population.

KEYWORDS: Common bean, root-knot nematode, genetic resistance.

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Author Biography

Eder Marques

ossui graduação em Agronomia (FAV-UnB), mestrado e doutorado em Fitopatologia (Depto de Fitopatologia/IB-UnB) e Pós-Doutorado em Controle Biológico de Doenças de Plantas (Embrapa Recursos Genéticos e Biotecnologia - CAPES). Atualmente é Professor Adjunto 1 (2023-Atual) na Escola de Agronomia e Coordenador do Núcleo de Pesquisa em Fitopatologia-NPF, da Universidade Federal de Goiás (Campus Samambaia - Goiânia), ministrando parte das disciplinas de graduação Fitopatologia 1 e 2, Patologia Florestal 1 e 2, Proteção de Plantas, Técnicas em Fitopatologia (Optativa) e também colabora nas disciplinas de pós-graduação: Bactérias Fitopatogênicas e Princípios e Métodos em Fitopatologia. Tem experiência na área de Agronomia, com ênfase em Fitopatologia (Bacteriologia) e manejo de doenças: prospecção de plantas e microrganismos com potencial antimicrobiano e promotor de crescimento de plantas. Controle biológico de doenças da cana-de-açúcar e tomateiro.

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Published

2024-09-30

How to Cite

NASIRU, B. S.; BERNARDES NETO, J. F.; SOUZA, T. L. P. O. de; MARQUES, E. .; ROCHA, M. R. da. Assessment of Phaseolus vulgaris genotypes for resistance to Meloidogyne incognita. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, p. e79475, 2024. Disponível em: https://revistas.ufg.br/pat/article/view/79475. Acesso em: 21 nov. 2024.

Issue

v. 54 (2024)

Section

Research Article

License

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