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Resistance of new Coffea canephora clones to root-knot nematode (Meloidogyne incognita) in the western amazon

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dc.contributor.author Rudnick, Vaneide Araújo de Sousa
dc.contributor.author Vieira Junior, José Roberto
dc.contributor.author Fernandes, Cleberson de Freitas
dc.contributor.author Rocha, Rodrigo Barros
dc.contributor.author Teixeira, Alexsandro Lara
dc.contributor.author Ramalho, André Rostand
dc.contributor.author Espindula, Marcelo Curitiba
dc.contributor.author Santos, Anderson Vieira
dc.contributor.author Anjos, Elize Francisca Mendes dos
dc.contributor.author Uchôa, Francisco Paiva
dc.date.accessioned 2021-09-15T10:07:37Z
dc.date.available 2021-09-15T10:07:37Z
dc.date.issued 2020
dc.identifier.citation RUDNICK, V. A. S. et al. Resistance of new Coffea canephora clones to root-knot nematode (Meloidogyne incognita) in the western amazon. Coffee Science, Lavras, v. 15, p. 1-8, 2020. pt_BR
dc.identifier.issn 1984-3909
dc.identifier.uri https://doi.org/10.25186/.v15i.1708 pt_BR
dc.identifier.uri http://www.sbicafe.ufv.br/handle/123456789/12779
dc.description.abstract Root-knot disease is among the main diseases affecting coffee crop. The plant selection to the development new resistant cultivars is among one the most efficient methods of control. The present work aimed to quantify the resistance responses of Coffea canephora clones to root-knot nematode Meloidogyne incognita in the Western Amazon. For this, 17 previously selected clones were evaluated in three experimental trials, carried out in the municipalities of Ji-Paraná and Porto Velho, Rondônia. The resistance to root-knot nematodes M. incognita were evaluated by the numbers of gall in the roots (NG) and by the reproductive factor (RF). The resistance response was also interpreted according the genetic diversity of the clones based in their morphological traits. The clones BRS3210, C12, BRS2314, BRS3137 and BRS1216 are resistant to M. incognita with RF of 0.34, 0.62, 0.79, 0.86 and 0.98, respectively. BRS3213, C125, C15, BRS2336, BRS3220 and C09 clones were classified as susceptible, with RF of 1.93, 1.95, 2.00, 2.31, 2.32 and 2.35. The BRS3193, C160 and BRS2357 clones were classified as very susceptible, with RF values of 3.03, 4.41 and 5.82, respectively. The clustering based on the genetic diversity of morphological traits indicated that genotypes more similar to the Robusta botanic variety had lower RF. The hybrid plants showed intermediate degrees of resistance indicating the segregation for the character of the M. incognita resistance. The clones BRS3210, C12, BRS2299, BRS2314, BRS3137 and BRS1216 expressed resistance responses to M. incognita with potential for growing resistant genotypes in the Western Amazon. pt_BR
dc.format pdf pt_BR
dc.language.iso en pt_BR
dc.publisher Editora UFLA pt_BR
dc.relation.ispartofseries Coffee Science:v.15;
dc.rights Open Access pt_BR
dc.subject Coffee pt_BR
dc.subject Root-knot disease pt_BR
dc.subject Plant breeding pt_BR
dc.subject Amazonian pt_BR
dc.subject.classification Cafeicultura::Genética e melhoramento pt_BR
dc.title Resistance of new Coffea canephora clones to root-knot nematode (Meloidogyne incognita) in the western amazon pt_BR
dc.type Artigo pt_BR

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