Resistance to leaf rust in coffee cultivars

Detalhes bibliográficos
Autor(a) principal: Sera, Gustavo Hiroshi
Data de Publicação: 2010
Outros Autores: Sera, Tumoru, Fonseca, Inês Cristina de Batista, Ito, Dhalton Shiguer
Tipo de documento: Artigo
Idioma: eng
por
Título da fonte: Coffee Science (Online)
Texto Completo: https://coffeescience.ufla.br/index.php/Coffeescience/article/view/272
Resumo: All the Coffea arabica L. cultivars developed by the IAPAR4 were resistant to rust (Hemileia vastatrix) when registered. However, with the appearance of new races these cultivars now present different resistance levels. The aim of this work was to assess the resistance to rust in coffee cultivars developed by the IAPAR. Resistance to the local leaf rust races was assessed in high disease intensity field conditions in August 2007. Twelve coffee cultivars, from IPR 97 to IPR 108, were evaluated. ‘IAPAR 59’ and ‘Catuaí Vermelho IAC 81’ were used as resistance and susceptibility standards, respectively. The experimental design was in randomized blocks with nine replications and plots with seven plants. A scale from 1 to 5, based on rust severity, was used to evaluate resistance. Yield evaluation was based on the harvest carried out in June 2007. The cultivars IAPAR 59, IPR 97, IPR 98, IPR 104 and IPR 105 were almost 100 % rust resistant, while IPR 99, IPR 101, IPR 102 and IPR 107 presented approximately 75% of plants with complete resistance. Thus, the resistance gene(s) is probably in heterozygous condition. The cultivars IPR 103 and IPR 108 may present incomplete resistance, while the IPR 100 presented similar susceptibility to ‘Catuaí Vermelho IAC 81’ and IPR 106 may also be susceptible.
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spelling Resistance to leaf rust in coffee cultivarsResistência à ferrugem alaranjada em cultivares de caféCoffeaHemileia vastatrixincomplete resistancepartial resistanceSH genesCoffeagenes SHHemileia vastatrixresistência incompletaresistência parcialAll the Coffea arabica L. cultivars developed by the IAPAR4 were resistant to rust (Hemileia vastatrix) when registered. However, with the appearance of new races these cultivars now present different resistance levels. The aim of this work was to assess the resistance to rust in coffee cultivars developed by the IAPAR. Resistance to the local leaf rust races was assessed in high disease intensity field conditions in August 2007. Twelve coffee cultivars, from IPR 97 to IPR 108, were evaluated. ‘IAPAR 59’ and ‘Catuaí Vermelho IAC 81’ were used as resistance and susceptibility standards, respectively. The experimental design was in randomized blocks with nine replications and plots with seven plants. A scale from 1 to 5, based on rust severity, was used to evaluate resistance. Yield evaluation was based on the harvest carried out in June 2007. The cultivars IAPAR 59, IPR 97, IPR 98, IPR 104 and IPR 105 were almost 100 % rust resistant, while IPR 99, IPR 101, IPR 102 and IPR 107 presented approximately 75% of plants with complete resistance. Thus, the resistance gene(s) is probably in heterozygous condition. The cultivars IPR 103 and IPR 108 may present incomplete resistance, while the IPR 100 presented similar susceptibility to ‘Catuaí Vermelho IAC 81’ and IPR 106 may also be susceptible.As cultivares de café Coffea arabica L. obtidas pelo Iapar eram resistentes à ferrugem Hemileia vastatrix quando foram registradas, mas com o surgimento de novas raças, essas cultivares apresentam, atualmente, diferentes níveis de resistência. Neste trabalho objetivou-se avaliar a resistência à ferrugem em 12 cultivares de café desenvolvidas pelo Iapar. A avaliação da resistência foi para a população local de raças de ferrugem em condições de alta intensidade da doença em campo e foi realizada em agosto de 2007 em Londrina -PR. Avaliaram-se 12 cultivares, desde IPR 97 a IPR 108. Como padrões de resistência e suscetibilidade, foram avaliados, respectivamente, ‘Iapar 59’ e ‘Catuaí Vermelho IAC 81’. O delineamento experimental foi em blocos ao acaso com nove repetições e parcelas de sete plantas. Para a avaliação da resistência, foi utilizada uma escala de notas que variava de 1 a 5, baseada na severidade da ferrugem. A avaliação da produtividade foi com base na colheita realizada em junho de 2007. As cultivares Iapar 59, IPR 97, IPR 98, IPR 104 e IPR 105 apresentaram resistência completa à ferrugem; ‘IPR 99’, ‘IPR 101’, ‘IPR 102’ e ‘IPR 107’ apresentaram cerca de 75% das plantas com resistência completa, assim, provavelmente, gene(s) de resistência estão em condição heterozigótica. As cultivares IPR 103 e IPR 108 podem ter resistência incompleta. A cultivar IPR 100 apresentou suscetibilidade similar ao da cultivar Catuaí Vermelho IAC 81; a ‘IPR 106’ também pode ser suscetível.Editora UFLA2010-09-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/272Coffee Science - ISSN 1984-3909; Vol. 5 No. 1 (2010); 59-66Coffee Science; Vol. 5 Núm. 1 (2010); 59-66Coffee Science; v. 5 n. 1 (2010); 59-661984-3909reponame:Coffee Science (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAengporhttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/272/257https://coffeescience.ufla.br/index.php/Coffeescience/article/view/272/pdfCopyright (c) 2010 Coffee Science - ISSN 1984-3909https://creativecommons.org/info:eu-repo/semantics/openAccessSera, Gustavo HiroshiSera, TumoruFonseca, Inês Cristina de BatistaIto, Dhalton Shiguer2013-02-24T13:21:54Zoai:coffeescience.ufla.br:article/272Revistahttps://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:2024-05-21T19:53:36.199348Coffee Science (Online) - Universidade Federal de Lavras (UFLA)true
dc.title.none.fl_str_mv Resistance to leaf rust in coffee cultivars
Resistência à ferrugem alaranjada em cultivares de café
title Resistance to leaf rust in coffee cultivars
spellingShingle Resistance to leaf rust in coffee cultivars
Sera, Gustavo Hiroshi
Coffea
Hemileia vastatrix
incomplete resistance
partial resistance
SH genes
Coffea
genes SH
Hemileia vastatrix
resistência incompleta
resistência parcial
title_short Resistance to leaf rust in coffee cultivars
title_full Resistance to leaf rust in coffee cultivars
title_fullStr Resistance to leaf rust in coffee cultivars
title_full_unstemmed Resistance to leaf rust in coffee cultivars
title_sort Resistance to leaf rust in coffee cultivars
author Sera, Gustavo Hiroshi
author_facet Sera, Gustavo Hiroshi
Sera, Tumoru
Fonseca, Inês Cristina de Batista
Ito, Dhalton Shiguer
author_role author
author2 Sera, Tumoru
Fonseca, Inês Cristina de Batista
Ito, Dhalton Shiguer
author2_role author
author
author
dc.contributor.author.fl_str_mv Sera, Gustavo Hiroshi
Sera, Tumoru
Fonseca, Inês Cristina de Batista
Ito, Dhalton Shiguer
dc.subject.por.fl_str_mv Coffea
Hemileia vastatrix
incomplete resistance
partial resistance
SH genes
Coffea
genes SH
Hemileia vastatrix
resistência incompleta
resistência parcial
topic Coffea
Hemileia vastatrix
incomplete resistance
partial resistance
SH genes
Coffea
genes SH
Hemileia vastatrix
resistência incompleta
resistência parcial
description All the Coffea arabica L. cultivars developed by the IAPAR4 were resistant to rust (Hemileia vastatrix) when registered. However, with the appearance of new races these cultivars now present different resistance levels. The aim of this work was to assess the resistance to rust in coffee cultivars developed by the IAPAR. Resistance to the local leaf rust races was assessed in high disease intensity field conditions in August 2007. Twelve coffee cultivars, from IPR 97 to IPR 108, were evaluated. ‘IAPAR 59’ and ‘Catuaí Vermelho IAC 81’ were used as resistance and susceptibility standards, respectively. The experimental design was in randomized blocks with nine replications and plots with seven plants. A scale from 1 to 5, based on rust severity, was used to evaluate resistance. Yield evaluation was based on the harvest carried out in June 2007. The cultivars IAPAR 59, IPR 97, IPR 98, IPR 104 and IPR 105 were almost 100 % rust resistant, while IPR 99, IPR 101, IPR 102 and IPR 107 presented approximately 75% of plants with complete resistance. Thus, the resistance gene(s) is probably in heterozygous condition. The cultivars IPR 103 and IPR 108 may present incomplete resistance, while the IPR 100 presented similar susceptibility to ‘Catuaí Vermelho IAC 81’ and IPR 106 may also be susceptible.
publishDate 2010
dc.date.none.fl_str_mv 2010-09-10
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/272
url https://coffeescience.ufla.br/index.php/Coffeescience/article/view/272
dc.language.iso.fl_str_mv eng
por
language eng
por
dc.relation.none.fl_str_mv https://coffeescience.ufla.br/index.php/Coffeescience/article/view/272/257
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/272/pdf
dc.rights.driver.fl_str_mv Copyright (c) 2010 Coffee Science - ISSN 1984-3909
https://creativecommons.org/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2010 Coffee Science - ISSN 1984-3909
https://creativecommons.org/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
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. 5 No. 1 (2010); 59-66
Coffee Science; Vol. 5 Núm. 1 (2010); 59-66
Coffee Science; v. 5 n. 1 (2010); 59-66
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
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