Genotypic variability of maize for nitrogen accumulation and contribution of biological nitrogen fixation

Detalhes bibliográficos
Autor(a) principal: de Mendonça, Marcio Mattos
Data de Publicação: 2006
Outros Autores: Urquiaga, Segundo Sacramento, Reis, Veronica Massena
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/7332
Resumo: –The aim of this work was to compare nine genotypes of maize inoculated with a mixture of diazotrophic bacteria, and to quantify the contribution of biological nitrogen fixation (BNF). In order to quantify the BNF, isotopic dilution technique was used, in a concrete tank loaded with Ultissol horizon B, labelled with 15N. Differences were observed between total dry matter, grain production and N accumulation but differences in the enrichment of 15N were not observed, showing that the productivity and N accumulation were a result of the phenotype variability in extract N from the soil.
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spelling Genotypic variability of maize for nitrogen accumulation and contribution of biological nitrogen fixationVariabilidade genotípica de milho para acumulação de nitrogênio e contribuição da fixação biológica de nitrogênioAzospirillum; Zea mays; diazotrophic bacteria; gemoplasmAzospirillum; Zea mays; bactérias diazotróficas; germoplasma–The aim of this work was to compare nine genotypes of maize inoculated with a mixture of diazotrophic bacteria, and to quantify the contribution of biological nitrogen fixation (BNF). In order to quantify the BNF, isotopic dilution technique was used, in a concrete tank loaded with Ultissol horizon B, labelled with 15N. Differences were observed between total dry matter, grain production and N accumulation but differences in the enrichment of 15N were not observed, showing that the productivity and N accumulation were a result of the phenotype variability in extract N from the soil.– O objetivo deste trabalho foi comparar nove genótipos de milho, com inoculação de uma mistura de bactérias diazotróficas, quanto ao acúmulo de biomassa e N, por meio da técnica de diluição isotópica do 15N O experimento foi conduzido em um tanque de concreto de 120 m2 e 60 cm de profundidade, preenchido com Argissolo Vermelho-Amarelo. Os genótipos variaram quanto à produção de grãos, matéria seca total e acúmulo de N, mas não houve diferenças no enriquecimento de 15N , o que demonstra que a produção e o acúmulo de N foram conseqüência da variabilidade genotípica para extrair N do solo.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária Brasileirade Mendonça, Marcio MattosUrquiaga, Segundo SacramentoReis, Veronica Massena2006-11-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7332Pesquisa Agropecuaria Brasileira; v.41, n.11, nov. 2006; 1681-1685Pesquisa Agropecuária Brasileira; v.41, n.11, nov. 2006; 1681-16851678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7332/4377info:eu-repo/semantics/openAccess2014-10-06T18:31:57Zoai:ojs.seer.sct.embrapa.br:article/7332Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-10-06T18:31:57Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Genotypic variability of maize for nitrogen accumulation and contribution of biological nitrogen fixation
Variabilidade genotípica de milho para acumulação de nitrogênio e contribuição da fixação biológica de nitrogênio
title Genotypic variability of maize for nitrogen accumulation and contribution of biological nitrogen fixation
spellingShingle Genotypic variability of maize for nitrogen accumulation and contribution of biological nitrogen fixation
de Mendonça, Marcio Mattos
Azospirillum; Zea mays; diazotrophic bacteria; gemoplasm
Azospirillum; Zea mays; bactérias diazotróficas; germoplasma
title_short Genotypic variability of maize for nitrogen accumulation and contribution of biological nitrogen fixation
title_full Genotypic variability of maize for nitrogen accumulation and contribution of biological nitrogen fixation
title_fullStr Genotypic variability of maize for nitrogen accumulation and contribution of biological nitrogen fixation
title_full_unstemmed Genotypic variability of maize for nitrogen accumulation and contribution of biological nitrogen fixation
title_sort Genotypic variability of maize for nitrogen accumulation and contribution of biological nitrogen fixation
author de Mendonça, Marcio Mattos
author_facet de Mendonça, Marcio Mattos
Urquiaga, Segundo Sacramento
Reis, Veronica Massena
author_role author
author2 Urquiaga, Segundo Sacramento
Reis, Veronica Massena
author2_role author
author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv de Mendonça, Marcio Mattos
Urquiaga, Segundo Sacramento
Reis, Veronica Massena
dc.subject.por.fl_str_mv Azospirillum; Zea mays; diazotrophic bacteria; gemoplasm
Azospirillum; Zea mays; bactérias diazotróficas; germoplasma
topic Azospirillum; Zea mays; diazotrophic bacteria; gemoplasm
Azospirillum; Zea mays; bactérias diazotróficas; germoplasma
description –The aim of this work was to compare nine genotypes of maize inoculated with a mixture of diazotrophic bacteria, and to quantify the contribution of biological nitrogen fixation (BNF). In order to quantify the BNF, isotopic dilution technique was used, in a concrete tank loaded with Ultissol horizon B, labelled with 15N. Differences were observed between total dry matter, grain production and N accumulation but differences in the enrichment of 15N were not observed, showing that the productivity and N accumulation were a result of the phenotype variability in extract N from the soil.
publishDate 2006
dc.date.none.fl_str_mv 2006-11-01
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/7332
url https://seer.sct.embrapa.br/index.php/pab/article/view/7332
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/7332/4377
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.41, n.11, nov. 2006; 1681-1685
Pesquisa Agropecuária Brasileira; v.41, n.11, nov. 2006; 1681-1685
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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