Effects of row spacing in the rice blast disease attack
Autor(a) principal: | |
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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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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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1793416709764284416 |