Characterization of resistance response of Coffea canephora genotypes to Meloiddogyne incognita (Est I2) root-knot nematode
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Coffee Science (Online) |
Texto Completo: | https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422 |
Resumo: | Meloidogynose is prominent among the factors that limit yield in C. canephora in the western Amazon, Brazil. It is caused by species of “root-knot nematode”; the most important and aggressive of these species for coffee is M. incognita. The aim of this study was to assist the selection of resistant genotypes by characterizing the reaction of 32 C. canephora clones to M. incognita (Est I2). These genotypes are selected plants from the Germplasm Bank of Embrapa Rondônia of the botanical varieties Conilon, Robusta and intervarietal hybrids. The experiments were conducted under greenhouse conditions by inoculating six seedlings for each clone with 10 ml of suspension containing 5000 eggs of a pure inoculum of M. incognita. At 150 days after inoculation, evaluations were made of fresh weight of roots (FWR), total number of galls (NG), total number of eggs (NE), and the nematode reproduction factor (RF=final population/initial population). In contrast with the susceptible controls of arabica coffee (RF=1.2) and tomato plants (RF=31.3), six clones of the Conilon botanical variety, five clones of the Robusta botanical variety and eight intervarietal hybrids reacted as resistant to M. incognita, exhibiting RF < 1 and a reduced number of galls (NGmean = < 10). The clones identified as resistant in this study were integrated in the coffee breeding program in Rondônia for development of cultivars resistant to the root-knot nematode adapted to tropical conditions. |
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Coffee Science (Online) |
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Characterization of resistance response of Coffea canephora genotypes to Meloiddogyne incognita (Est I2) root-knot nematodeCoffeemeloidogynoseplant selectionplant breedingRondônia.Meloidogynose is prominent among the factors that limit yield in C. canephora in the western Amazon, Brazil. It is caused by species of “root-knot nematode”; the most important and aggressive of these species for coffee is M. incognita. The aim of this study was to assist the selection of resistant genotypes by characterizing the reaction of 32 C. canephora clones to M. incognita (Est I2). These genotypes are selected plants from the Germplasm Bank of Embrapa Rondônia of the botanical varieties Conilon, Robusta and intervarietal hybrids. The experiments were conducted under greenhouse conditions by inoculating six seedlings for each clone with 10 ml of suspension containing 5000 eggs of a pure inoculum of M. incognita. At 150 days after inoculation, evaluations were made of fresh weight of roots (FWR), total number of galls (NG), total number of eggs (NE), and the nematode reproduction factor (RF=final population/initial population). In contrast with the susceptible controls of arabica coffee (RF=1.2) and tomato plants (RF=31.3), six clones of the Conilon botanical variety, five clones of the Robusta botanical variety and eight intervarietal hybrids reacted as resistant to M. incognita, exhibiting RF < 1 and a reduced number of galls (NGmean = < 10). The clones identified as resistant in this study were integrated in the coffee breeding program in Rondônia for development of cultivars resistant to the root-knot nematode adapted to tropical conditions.Editora UFLA2018-06-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documentapplication/mswordimage/jpegapplication/pdfhttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422Coffee Science - ISSN 1984-3909; Vol. 13 No. 2 (2018); 219-229Coffee Science; Vol. 13 Núm. 2 (2018); 219-229Coffee Science; v. 13 n. 2 (2018); 219-2291984-3909reponame:Coffee Science (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAenghttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422/PDF1422https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422/1900https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422/1901https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422/1902https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422/1903Copyright (c) 2018 Coffee Scienceinfo:eu-repo/semantics/openAccessSantos, Anderson VieiraRocha, Rodrigo Barrosda Silveira, Silvaldo FelipeTeixeira, Alexsandro Larade Matos, Sara InáciaVieira Júnior, José Roberto2018-06-26T16:29:24Zoai:coffeescience.ufla.br:article/1422Revistahttps://coffeescience.ufla.br/index.php/CoffeesciencePUBhttps://coffeescience.ufla.br/index.php/Coffeescience/oaicoffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com1984-39091809-6875opendoar:2024-05-21T19:54:05.205525Coffee Science (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
Characterization of resistance response of Coffea canephora genotypes to Meloiddogyne incognita (Est I2) root-knot nematode |
title |
Characterization of resistance response of Coffea canephora genotypes to Meloiddogyne incognita (Est I2) root-knot nematode |
spellingShingle |
Characterization of resistance response of Coffea canephora genotypes to Meloiddogyne incognita (Est I2) root-knot nematode Santos, Anderson Vieira Coffee meloidogynose plant selection plant breeding Rondônia. |
title_short |
Characterization of resistance response of Coffea canephora genotypes to Meloiddogyne incognita (Est I2) root-knot nematode |
title_full |
Characterization of resistance response of Coffea canephora genotypes to Meloiddogyne incognita (Est I2) root-knot nematode |
title_fullStr |
Characterization of resistance response of Coffea canephora genotypes to Meloiddogyne incognita (Est I2) root-knot nematode |
title_full_unstemmed |
Characterization of resistance response of Coffea canephora genotypes to Meloiddogyne incognita (Est I2) root-knot nematode |
title_sort |
Characterization of resistance response of Coffea canephora genotypes to Meloiddogyne incognita (Est I2) root-knot nematode |
author |
Santos, Anderson Vieira |
author_facet |
Santos, Anderson Vieira Rocha, Rodrigo Barros da Silveira, Silvaldo Felipe Teixeira, Alexsandro Lara de Matos, Sara Inácia Vieira Júnior, José Roberto |
author_role |
author |
author2 |
Rocha, Rodrigo Barros da Silveira, Silvaldo Felipe Teixeira, Alexsandro Lara de Matos, Sara Inácia Vieira Júnior, José Roberto |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Santos, Anderson Vieira Rocha, Rodrigo Barros da Silveira, Silvaldo Felipe Teixeira, Alexsandro Lara de Matos, Sara Inácia Vieira Júnior, José Roberto |
dc.subject.por.fl_str_mv |
Coffee meloidogynose plant selection plant breeding Rondônia. |
topic |
Coffee meloidogynose plant selection plant breeding Rondônia. |
description |
Meloidogynose is prominent among the factors that limit yield in C. canephora in the western Amazon, Brazil. It is caused by species of “root-knot nematode”; the most important and aggressive of these species for coffee is M. incognita. The aim of this study was to assist the selection of resistant genotypes by characterizing the reaction of 32 C. canephora clones to M. incognita (Est I2). These genotypes are selected plants from the Germplasm Bank of Embrapa Rondônia of the botanical varieties Conilon, Robusta and intervarietal hybrids. The experiments were conducted under greenhouse conditions by inoculating six seedlings for each clone with 10 ml of suspension containing 5000 eggs of a pure inoculum of M. incognita. At 150 days after inoculation, evaluations were made of fresh weight of roots (FWR), total number of galls (NG), total number of eggs (NE), and the nematode reproduction factor (RF=final population/initial population). In contrast with the susceptible controls of arabica coffee (RF=1.2) and tomato plants (RF=31.3), six clones of the Conilon botanical variety, five clones of the Robusta botanical variety and eight intervarietal hybrids reacted as resistant to M. incognita, exhibiting RF < 1 and a reduced number of galls (NGmean = < 10). The clones identified as resistant in this study were integrated in the coffee breeding program in Rondônia for development of cultivars resistant to the root-knot nematode adapted to tropical conditions. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-06-26 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422 |
url |
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422/PDF1422 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422/1900 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422/1901 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422/1902 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/1422/1903 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2018 Coffee Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2018 Coffee Science |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document application/msword image/jpeg application/pdf |
dc.publisher.none.fl_str_mv |
Editora UFLA |
publisher.none.fl_str_mv |
Editora UFLA |
dc.source.none.fl_str_mv |
Coffee Science - ISSN 1984-3909; Vol. 13 No. 2 (2018); 219-229 Coffee Science; Vol. 13 Núm. 2 (2018); 219-229 Coffee Science; v. 13 n. 2 (2018); 219-229 1984-3909 reponame:Coffee Science (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Coffee Science (Online) |
collection |
Coffee Science (Online) |
repository.name.fl_str_mv |
Coffee Science (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
coffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com |
_version_ |
1799874921150545920 |