Silicon reduces brown spot severity and grain discoloration on several rice genotypes

Detalhes bibliográficos
Autor(a) principal: Prabhu,Anne S.
Data de Publicação: 2012
Outros Autores: Barbosa Filho,Morel P., Datnoff,Lawrence E., Snyder,George H., Berni,Rodrigo F., Rodrigues,Fabricio A., Dallagnol,Leandro J.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Tropical plant pathology (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762012000600005
Resumo: This study aimed to investigate the effect of silicon (Si) on the reduction of brown spot severity (BSS), caused by Bipolaris oryzae, and grain discoloration in several rice genotypes. An experiment was conducted in a greenhouse where eight genotypes were evaluated for their response to Si rates and decrease on BSS. The relationship between Si rates and BSS was linear negative. Additionally, a field experiment was conducted including forty-eight genotypes which were grown in upland conditions and evaluated for their response to Si rates and reduction on grain discoloration. The relationship between Si rates and grain discoloration was quadratic negative. Weight of filled grains per panicle increased as the Si rates in the soil increased. Genotypic differences for Si concentration in husk were evident for both non-amended and Si-amended plots. While the Si concentration in husk increased to all genotypes, there was no relationship between grain discoloration and Si concentration in husk for plants from non-amended and Si-amended plots. The genotype CAN-7024 with the highest resistance to leaf brown spot also showed the lowest grain discoloration in comparison to the genotypes Casado and Caqui.
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spelling Silicon reduces brown spot severity and grain discoloration on several rice genotypesBipolaris oryzaeOryza sativa L.fungi associated to seedsplant nutritionThis study aimed to investigate the effect of silicon (Si) on the reduction of brown spot severity (BSS), caused by Bipolaris oryzae, and grain discoloration in several rice genotypes. An experiment was conducted in a greenhouse where eight genotypes were evaluated for their response to Si rates and decrease on BSS. The relationship between Si rates and BSS was linear negative. Additionally, a field experiment was conducted including forty-eight genotypes which were grown in upland conditions and evaluated for their response to Si rates and reduction on grain discoloration. The relationship between Si rates and grain discoloration was quadratic negative. Weight of filled grains per panicle increased as the Si rates in the soil increased. Genotypic differences for Si concentration in husk were evident for both non-amended and Si-amended plots. While the Si concentration in husk increased to all genotypes, there was no relationship between grain discoloration and Si concentration in husk for plants from non-amended and Si-amended plots. The genotype CAN-7024 with the highest resistance to leaf brown spot also showed the lowest grain discoloration in comparison to the genotypes Casado and Caqui.Sociedade Brasileira de Fitopatologia2012-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762012000600005Tropical Plant Pathology v.37 n.6 2012reponame:Tropical plant pathology (Online)instname:Sociedade Brasileira de Fitopatologiainstacron:SBF10.1590/S1982-56762012000600005info:eu-repo/semantics/openAccessPrabhu,Anne S.Barbosa Filho,Morel P.Datnoff,Lawrence E.Snyder,George H.Berni,Rodrigo F.Rodrigues,Fabricio A.Dallagnol,Leandro J.eng2012-12-05T00:00:00Zoai:scielo:S1982-56762012000600005Revistahttps://www.scielo.br/j/tpp/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbf-revista@ufla.br1983-20521982-5676opendoar:2012-12-05T00:00Tropical plant pathology (Online) - Sociedade Brasileira de Fitopatologiafalse
dc.title.none.fl_str_mv Silicon reduces brown spot severity and grain discoloration on several rice genotypes
title Silicon reduces brown spot severity and grain discoloration on several rice genotypes
spellingShingle Silicon reduces brown spot severity and grain discoloration on several rice genotypes
Prabhu,Anne S.
Bipolaris oryzae
Oryza sativa L.
fungi associated to seeds
plant nutrition
title_short Silicon reduces brown spot severity and grain discoloration on several rice genotypes
title_full Silicon reduces brown spot severity and grain discoloration on several rice genotypes
title_fullStr Silicon reduces brown spot severity and grain discoloration on several rice genotypes
title_full_unstemmed Silicon reduces brown spot severity and grain discoloration on several rice genotypes
title_sort Silicon reduces brown spot severity and grain discoloration on several rice genotypes
author Prabhu,Anne S.
author_facet Prabhu,Anne S.
Barbosa Filho,Morel P.
Datnoff,Lawrence E.
Snyder,George H.
Berni,Rodrigo F.
Rodrigues,Fabricio A.
Dallagnol,Leandro J.
author_role author
author2 Barbosa Filho,Morel P.
Datnoff,Lawrence E.
Snyder,George H.
Berni,Rodrigo F.
Rodrigues,Fabricio A.
Dallagnol,Leandro J.
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Prabhu,Anne S.
Barbosa Filho,Morel P.
Datnoff,Lawrence E.
Snyder,George H.
Berni,Rodrigo F.
Rodrigues,Fabricio A.
Dallagnol,Leandro J.
dc.subject.por.fl_str_mv Bipolaris oryzae
Oryza sativa L.
fungi associated to seeds
plant nutrition
topic Bipolaris oryzae
Oryza sativa L.
fungi associated to seeds
plant nutrition
description This study aimed to investigate the effect of silicon (Si) on the reduction of brown spot severity (BSS), caused by Bipolaris oryzae, and grain discoloration in several rice genotypes. An experiment was conducted in a greenhouse where eight genotypes were evaluated for their response to Si rates and decrease on BSS. The relationship between Si rates and BSS was linear negative. Additionally, a field experiment was conducted including forty-eight genotypes which were grown in upland conditions and evaluated for their response to Si rates and reduction on grain discoloration. The relationship between Si rates and grain discoloration was quadratic negative. Weight of filled grains per panicle increased as the Si rates in the soil increased. Genotypic differences for Si concentration in husk were evident for both non-amended and Si-amended plots. While the Si concentration in husk increased to all genotypes, there was no relationship between grain discoloration and Si concentration in husk for plants from non-amended and Si-amended plots. The genotype CAN-7024 with the highest resistance to leaf brown spot also showed the lowest grain discoloration in comparison to the genotypes Casado and Caqui.
publishDate 2012
dc.date.none.fl_str_mv 2012-12-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762012000600005
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1982-56762012000600005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1982-56762012000600005
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Fitopatologia
publisher.none.fl_str_mv Sociedade Brasileira de Fitopatologia
dc.source.none.fl_str_mv Tropical Plant Pathology v.37 n.6 2012
reponame:Tropical plant pathology (Online)
instname:Sociedade Brasileira de Fitopatologia
instacron:SBF
instname_str Sociedade Brasileira de Fitopatologia
instacron_str SBF
institution SBF
reponame_str Tropical plant pathology (Online)
collection Tropical plant pathology (Online)
repository.name.fl_str_mv Tropical plant pathology (Online) - Sociedade Brasileira de Fitopatologia
repository.mail.fl_str_mv sbf-revista@ufla.br
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