Genetic resistance of grape genotypes to rust

Detalhes bibliográficos
Autor(a) principal: Angelotti, Francislene
Data de Publicação: 2008
Outros Autores: Scapin, Claudia Regina, Tessmann, Dauri José, Vida, João Batista, Vieira, Rafael Augusto, Souto, Eliezer Rodrigues de
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/995
Resumo: The objective of this work was to evaluate the genetic resistance of grape genotypes to rust, caused by the fungus Phakopsora euvitis, and the infection effi ciency in relation to leaf age and inoculum concentration. The evaluation was carried out on 15 genotypes, based on the following resistance components: number of pustules (uredia) per cm2, size of pustules; number of urediniospores produced per pustules; and latent period. The resistance components, except for the latent period, presented considerable quantitative variation. The multivariate analysis of resistance components discriminated fi ve groups of genotypes. The more resistant genotypes were the rootstocks cultivars IAC313, IAC572, and IAC766, in which the infection effi ciency waslow, with small pustule sizes, and less urediniospores production, besides hypersensivity response on tissue surrounding the pustules. The infection increases with increasing of inoculum concentration. The rust colonizes young and mature grape leaves.
id EMBRAPA-4_42596ee691a9c417b9a59ce985937332
oai_identifier_str oai:ojs.seer.sct.embrapa.br:article/995
network_acronym_str EMBRAPA-4
network_name_str Pesquisa Agropecuária Brasileira (Online)
repository_id_str
spelling Genetic resistance of grape genotypes to rustResistência de genótipos de videira à ferrugemPhakopsora euvitis; Vitis; multivariate analysis; hypersensivity response; genetic resistancePhakopsora euvitis; Vitis; análise multivariada; reação de hipersensibilidade; resistência genéticaThe objective of this work was to evaluate the genetic resistance of grape genotypes to rust, caused by the fungus Phakopsora euvitis, and the infection effi ciency in relation to leaf age and inoculum concentration. The evaluation was carried out on 15 genotypes, based on the following resistance components: number of pustules (uredia) per cm2, size of pustules; number of urediniospores produced per pustules; and latent period. The resistance components, except for the latent period, presented considerable quantitative variation. The multivariate analysis of resistance components discriminated fi ve groups of genotypes. The more resistant genotypes were the rootstocks cultivars IAC313, IAC572, and IAC766, in which the infection effi ciency waslow, with small pustule sizes, and less urediniospores production, besides hypersensivity response on tissue surrounding the pustules. The infection increases with increasing of inoculum concentration. The rust colonizes young and mature grape leaves.O objetivo deste trabalho foi avaliar a resistência à ferrugem causada pelo fungo Phakopsora euvitis, em genótipos de videira, e a efi ciência da infecção de acordo com a idade das folhas e concentração de inóculo. A avaliação foi feita em 15 genótipos, com base nos seguintes componentes de resistência: número de pústulas(urédios) por cm2; tamanho das pústulas; número de esporos produzidos por pústula; e período latente. Os componentes de resistência, com exceção do período latente, apresentaram grande variação quantitativa. A análise multivariada desses componentes diferenciou cinco grupos de genótipos. Os genótipos mais resistentes foram as cultivares porta-enxertos IAC313, IAC572 e IAC766, em que a efi ciência da infecção foi baixa, com pústulas menores e menor produção de urediniósporos, além de reação de hipersensibilidade no tecido em torno das pústulas. O grau de infecção aumenta com o aumento na concentração do inóculo. A ferrugem coloniza, indiscriminadamente, folhas jovens e folhas maduras de videira.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraCNPq, CAPESAngelotti, FrancisleneScapin, Claudia ReginaTessmann, Dauri JoséVida, João BatistaVieira, Rafael AugustoSouto, Eliezer Rodrigues de2008-10-29info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/995Pesquisa Agropecuaria Brasileira; v.43, n.9, set. 2008; 1129-1134Pesquisa Agropecuária Brasileira; v.43, n.9, set. 2008; 1129-11341678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/995/5491https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/995/648https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/995/833info:eu-repo/semantics/openAccess2014-07-16T17:03:57Zoai:ojs.seer.sct.embrapa.br:article/995Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-07-16T17:03:57Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Genetic resistance of grape genotypes to rust
Resistência de genótipos de videira à ferrugem
title Genetic resistance of grape genotypes to rust
spellingShingle Genetic resistance of grape genotypes to rust
Angelotti, Francislene
Phakopsora euvitis; Vitis; multivariate analysis; hypersensivity response; genetic resistance
Phakopsora euvitis; Vitis; análise multivariada; reação de hipersensibilidade; resistência genética
title_short Genetic resistance of grape genotypes to rust
title_full Genetic resistance of grape genotypes to rust
title_fullStr Genetic resistance of grape genotypes to rust
title_full_unstemmed Genetic resistance of grape genotypes to rust
title_sort Genetic resistance of grape genotypes to rust
author Angelotti, Francislene
author_facet Angelotti, Francislene
Scapin, Claudia Regina
Tessmann, Dauri José
Vida, João Batista
Vieira, Rafael Augusto
Souto, Eliezer Rodrigues de
author_role author
author2 Scapin, Claudia Regina
Tessmann, Dauri José
Vida, João Batista
Vieira, Rafael Augusto
Souto, Eliezer Rodrigues de
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv
CNPq, CAPES
dc.contributor.author.fl_str_mv Angelotti, Francislene
Scapin, Claudia Regina
Tessmann, Dauri José
Vida, João Batista
Vieira, Rafael Augusto
Souto, Eliezer Rodrigues de
dc.subject.por.fl_str_mv Phakopsora euvitis; Vitis; multivariate analysis; hypersensivity response; genetic resistance
Phakopsora euvitis; Vitis; análise multivariada; reação de hipersensibilidade; resistência genética
topic Phakopsora euvitis; Vitis; multivariate analysis; hypersensivity response; genetic resistance
Phakopsora euvitis; Vitis; análise multivariada; reação de hipersensibilidade; resistência genética
description The objective of this work was to evaluate the genetic resistance of grape genotypes to rust, caused by the fungus Phakopsora euvitis, and the infection effi ciency in relation to leaf age and inoculum concentration. The evaluation was carried out on 15 genotypes, based on the following resistance components: number of pustules (uredia) per cm2, size of pustules; number of urediniospores produced per pustules; and latent period. The resistance components, except for the latent period, presented considerable quantitative variation. The multivariate analysis of resistance components discriminated fi ve groups of genotypes. The more resistant genotypes were the rootstocks cultivars IAC313, IAC572, and IAC766, in which the infection effi ciency waslow, with small pustule sizes, and less urediniospores production, besides hypersensivity response on tissue surrounding the pustules. The infection increases with increasing of inoculum concentration. The rust colonizes young and mature grape leaves.
publishDate 2008
dc.date.none.fl_str_mv 2008-10-29
dc.type.none.fl_str_mv
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://seer.sct.embrapa.br/index.php/pab/article/view/995
url https://seer.sct.embrapa.br/index.php/pab/article/view/995
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/995/5491
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/995/648
https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/995/833
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.43, n.9, set. 2008; 1129-1134
Pesquisa Agropecuária Brasileira; v.43, n.9, set. 2008; 1129-1134
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
_version_ 1793416686123089920

Registros relacionados