Effects of supplementary n on the quality and levels of grain proteins in rice

Detalhes bibliográficos
Autor(a) principal: de Souza, Sonia Regina
Data de Publicação: 1993
Outros Autores: Stark, Elvia Mariam Lis Martinez, Fernandes, Manilo Silvestre
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/3911
Resumo: The effects of supplementary URAN-N (urea-ammonium-nitrate), applied either to the soil or as a foliar spray, on dry weight, crude protein level and main protein fractions of rice (Oryza sativa L.) grain were studied under greenhouse conditions. URAN (20 kg of N/ha) applied at different times before, during and after anthesis, increased crude protein levels in grains. Later URAN applications caused larger protein increases. No difference in crude protein level were observed between foliar spray and soil applied URAN. A negative correlation was found between crude protein level and grain weights. The levels of albumin+globulin were not affected by N applications. Glutelin was the fraction that contributed most to the protein increase in grains. A negative correlation was found between the levels of prolamin and glutelin, showing that increases in protein levels due to supplementary N results in increase in the protein quality of rice grains.
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spelling Effects of supplementary n on the quality and levels of grain proteins in riceTeores e qualidade das proteínas de reserva do arroz em função de aplicação suplementar de NURAN; foliar spray-N; grain; prolamins; glutelinsURAN; aplicação foliar; grãos; prolamina; glutelinaThe effects of supplementary URAN-N (urea-ammonium-nitrate), applied either to the soil or as a foliar spray, on dry weight, crude protein level and main protein fractions of rice (Oryza sativa L.) grain were studied under greenhouse conditions. URAN (20 kg of N/ha) applied at different times before, during and after anthesis, increased crude protein levels in grains. Later URAN applications caused larger protein increases. No difference in crude protein level were observed between foliar spray and soil applied URAN. A negative correlation was found between crude protein level and grain weights. The levels of albumin+globulin were not affected by N applications. Glutelin was the fraction that contributed most to the protein increase in grains. A negative correlation was found between the levels of prolamin and glutelin, showing that increases in protein levels due to supplementary N results in increase in the protein quality of rice grains.Em experimento conduzido em casa de vegetação, estudou-se o efeito da aplicação de URAN (uréia-amônio-nitrato), por via foliar e no solo, sobre o peso de grãos, o teor de proteína bruta e a variação das principais frações protéicas dos grãos, em arroz (Oryza sativa L.). Aplicações de URAN (20 kg de N/ha) antes, durante e após a antese aumentaram a percentagem de proteína bruta dos grãos. Os maiores aumentos de proteína ocorreram com aplicações mais tardias de N. Não houve diferença entre aplicação foliar e aplicação no solo, quanto à percentagem de proteína bruta. A percentagem de proteína bruta correlacionou-se negativamente com o peso de grãos. Os teores de albumina+globulina não foram alterados pela suplementação nitrogenada. A glutelina foi a fração que mais contribuiu para o aumento da proteína do grãos. Os teores de prolamina e glutelina se correlacionaram negativamente, o que indica que o aumento em quantidade da proteína dos grãos de arroz em função da aplicação suplementar de N é acompanhado por aumento na qualidade da proteína.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária Brasileirade Souza, Sonia ReginaStark, Elvia Mariam Lis MartinezFernandes, Manilo Silvestre1993-05-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/3911Pesquisa Agropecuaria Brasileira; v.28, n.5, maio 1993; 575-583Pesquisa Agropecuária Brasileira; v.28, n.5, maio 1993; 575-5831678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/3911/1202info:eu-repo/semantics/openAccess2010-03-31T12:49:49Zoai:ojs.seer.sct.embrapa.br:article/3911Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-03-31T12:49:49Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Effects of supplementary n on the quality and levels of grain proteins in rice
Teores e qualidade das proteínas de reserva do arroz em função de aplicação suplementar de N
title Effects of supplementary n on the quality and levels of grain proteins in rice
spellingShingle Effects of supplementary n on the quality and levels of grain proteins in rice
de Souza, Sonia Regina
URAN; foliar spray-N; grain; prolamins; glutelins
URAN; aplicação foliar; grãos; prolamina; glutelina
title_short Effects of supplementary n on the quality and levels of grain proteins in rice
title_full Effects of supplementary n on the quality and levels of grain proteins in rice
title_fullStr Effects of supplementary n on the quality and levels of grain proteins in rice
title_full_unstemmed Effects of supplementary n on the quality and levels of grain proteins in rice
title_sort Effects of supplementary n on the quality and levels of grain proteins in rice
author de Souza, Sonia Regina
author_facet de Souza, Sonia Regina
Stark, Elvia Mariam Lis Martinez
Fernandes, Manilo Silvestre
author_role author
author2 Stark, Elvia Mariam Lis Martinez
Fernandes, Manilo Silvestre
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv de Souza, Sonia Regina
Stark, Elvia Mariam Lis Martinez
Fernandes, Manilo Silvestre
dc.subject.por.fl_str_mv URAN; foliar spray-N; grain; prolamins; glutelins
URAN; aplicação foliar; grãos; prolamina; glutelina
topic URAN; foliar spray-N; grain; prolamins; glutelins
URAN; aplicação foliar; grãos; prolamina; glutelina
description The effects of supplementary URAN-N (urea-ammonium-nitrate), applied either to the soil or as a foliar spray, on dry weight, crude protein level and main protein fractions of rice (Oryza sativa L.) grain were studied under greenhouse conditions. URAN (20 kg of N/ha) applied at different times before, during and after anthesis, increased crude protein levels in grains. Later URAN applications caused larger protein increases. No difference in crude protein level were observed between foliar spray and soil applied URAN. A negative correlation was found between crude protein level and grain weights. The levels of albumin+globulin were not affected by N applications. Glutelin was the fraction that contributed most to the protein increase in grains. A negative correlation was found between the levels of prolamin and glutelin, showing that increases in protein levels due to supplementary N results in increase in the protein quality of rice grains.
publishDate 1993
dc.date.none.fl_str_mv 1993-05-01
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/3911
url https://seer.sct.embrapa.br/index.php/pab/article/view/3911
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/3911/1202
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.28, n.5, maio 1993; 575-583
Pesquisa Agropecuária Brasileira; v.28, n.5, maio 1993; 575-583
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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