Effects of row spacing in the rice blast disease attack

Detalhes bibliográficos
Autor(a) principal: Ribeiro, Alcéu Sallaberry
Data de Publicação: 2014
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/18077
Resumo: In 1981/82, two trials were carried out with the following rice cultivars: Bluebelle, EEA 406, Caloro, Starbonnet, BR-IRGA 410 and Fanny. The objective was to study the effects of row spacing (10 cm, 20 cm and 30 cm) on the rice blast Pyricularia oryzae Cav. disease attack. One trial was conducted under lowland condition and the other one under upland condition. The results showed that the leaf blast symptoms decreased at 30 cm row spacing. The attacks had hifferences between cultivars according to susceptibility of each one. The panicle blast incidence was correlated with the leaf blast attack at vegetative growth stage. Low grades of blast disease were observed in the cultivars Bluebelle, Caloro and EEA 406. The cultivar Fanny (grade 9), BR-IRGA 410 (grade 3) and Starbonnet (grade 1) did not show any differences between 10 cm and 30 cm row spacing at panicle blast attack.
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spelling Effects of row spacing in the rice blast disease attackEfeitos do espaçamento entre linhas sobre a intensidade de brusone em arrozPyricularia; epidemiologyPyricularia; epidemiologiaIn 1981/82, two trials were carried out with the following rice cultivars: Bluebelle, EEA 406, Caloro, Starbonnet, BR-IRGA 410 and Fanny. The objective was to study the effects of row spacing (10 cm, 20 cm and 30 cm) on the rice blast Pyricularia oryzae Cav. disease attack. One trial was conducted under lowland condition and the other one under upland condition. The results showed that the leaf blast symptoms decreased at 30 cm row spacing. The attacks had hifferences between cultivars according to susceptibility of each one. The panicle blast incidence was correlated with the leaf blast attack at vegetative growth stage. Low grades of blast disease were observed in the cultivars Bluebelle, Caloro and EEA 406. The cultivar Fanny (grade 9), BR-IRGA 410 (grade 3) and Starbonnet (grade 1) did not show any differences between 10 cm and 30 cm row spacing at panicle blast attack.Em 1981/82, foram realizados dois experimentos com as cultivares Bluebelle, EEA 406, Caloro, Starbonnet, BR-IRGA 410 e Fanny. Realizou-se a semeadura nos espaçamentos de 10, 20 e 30 cm entre linhas, sob condições de cultivo de sequeiro em ripado e do irrigado em campo. O objetivo foi o do estudar os efeitos dos espaçamentos sobre a intensidade da brusone (Pyricularia oryzae Cav.). Os resultados obtidos mostraram que a intensidade dos sintomas de brusone, nas folhas, diminuiu com o aumento do espaçamento para 30 cm, diferindo de nível entre cultivares, em função do grau de suscetibilidade de cada uma. Por outro lado, as maiores intensidades de brusone nas panículas corresponderam aos maiores índices de brusone nas folhas, no período vegetativo. As menores foram observadas nas cultivares Bluebelle, Caloro e EEA 406. Nas cultivares Fanny (nota 9), BR-IRGA 410 (nota 3) e Starbonnet (nota 1) não houve diferença de intensidade de brusone na panícula, entre os espaçamentos de 10 e de 30 cm.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraRibeiro, Alcéu Sallaberry2014-04-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/18077Pesquisa Agropecuaria Brasileira; v.17, n.11, nov. 1982; 1691-1694Pesquisa Agropecuária Brasileira; v.17, n.11, nov. 1982; 1691-16941678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/18077/12112info:eu-repo/semantics/openAccess2014-04-15T19:48:26Zoai:ojs.seer.sct.embrapa.br:article/18077Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-04-15T19:48:26Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Effects of row spacing in the rice blast disease attack
Efeitos do espaçamento entre linhas sobre a intensidade de brusone em arroz
title Effects of row spacing in the rice blast disease attack
spellingShingle Effects of row spacing in the rice blast disease attack
Ribeiro, Alcéu Sallaberry
Pyricularia; epidemiology
Pyricularia; epidemiologia
title_short Effects of row spacing in the rice blast disease attack
title_full Effects of row spacing in the rice blast disease attack
title_fullStr Effects of row spacing in the rice blast disease attack
title_full_unstemmed Effects of row spacing in the rice blast disease attack
title_sort Effects of row spacing in the rice blast disease attack
author Ribeiro, Alcéu Sallaberry
author_facet Ribeiro, Alcéu Sallaberry
author_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Ribeiro, Alcéu Sallaberry
dc.subject.por.fl_str_mv Pyricularia; epidemiology
Pyricularia; epidemiologia
topic Pyricularia; epidemiology
Pyricularia; epidemiologia
description In 1981/82, two trials were carried out with the following rice cultivars: Bluebelle, EEA 406, Caloro, Starbonnet, BR-IRGA 410 and Fanny. The objective was to study the effects of row spacing (10 cm, 20 cm and 30 cm) on the rice blast Pyricularia oryzae Cav. disease attack. One trial was conducted under lowland condition and the other one under upland condition. The results showed that the leaf blast symptoms decreased at 30 cm row spacing. The attacks had hifferences between cultivars according to susceptibility of each one. The panicle blast incidence was correlated with the leaf blast attack at vegetative growth stage. Low grades of blast disease were observed in the cultivars Bluebelle, Caloro and EEA 406. The cultivar Fanny (grade 9), BR-IRGA 410 (grade 3) and Starbonnet (grade 1) did not show any differences between 10 cm and 30 cm row spacing at panicle blast attack.
publishDate 2014
dc.date.none.fl_str_mv 2014-04-15
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/18077
url https://seer.sct.embrapa.br/index.php/pab/article/view/18077
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/18077/12112
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.17, n.11, nov. 1982; 1691-1694
Pesquisa Agropecuária Brasileira; v.17, n.11, nov. 1982; 1691-1694
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
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