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Registro Completo |
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
23/10/2003 |
Data da última atualização: |
23/10/2003 |
Autoria: |
ALVES, B. J. R.; BODDEY, R. M.; URQUIAGA, S. |
Título: |
The Success of BNF in soybean in Brazil. |
Ano de publicação: |
2003 |
Fonte/Imprenta: |
Plant and Soil, Dordrecht, v. 252, p. 1-9, 2003. |
Idioma: |
Inglês |
Conteúdo: |
Approximately forty years after commercial cropping of soybean in Brazil began, the total area under this crop has reached over 13 M ha with a mean productivity of 2400 kg ha-l. Soybean varieties introduced from the USA and varieties rescued from early introductions in Brazilian territory were part of the Brazilian soybean-breeding programme which spread the crop from high to low latitudes. Disease-resistance, pest-resistance. tolerance to low fertility soils, as well as production of plants with pods sufficiently high above the ground for efficient mechanica1 harvesting. were all aims of the programme. Although BNF was not explicitly considered as a trait for selection in the breeding/selection programme, maximisation of biological nitrogen fixation (BNF) was favoured by conducting selection and breeding trials on soils low in N. in which the seeds were inoculated with efficient Bradyrhizobium inoculants but without N fertilizer application. Several efficient imported Brad)'rhizobium strains were found to be unable to compete with native soil micro-flora and other previously-introduced Brad)'rhizobium strains. Surprisingly. after being in the soil for many years one or two of these strains had become more competitive while maintaining their high BNF capacity. Today. these strains are included amongst the recommended Brazilian inoculants and have promoted significant improvements in grain yields. The breeding of soybeans in conditions that made grain yield highly dependent on BNF. and the continuous attention paid to the selection of Bradyrhizobium strains appropriate for the newly released varieties, have been the main contributors to today's high yields and their great benefit to the Brazilian economy. There seems to be no reason why this ongoing research programme should not serve as an appropriate model to improve BNF inputs to grain legume." in other countries of the world. MenosApproximately forty years after commercial cropping of soybean in Brazil began, the total area under this crop has reached over 13 M ha with a mean productivity of 2400 kg ha-l. Soybean varieties introduced from the USA and varieties rescued from early introductions in Brazilian territory were part of the Brazilian soybean-breeding programme which spread the crop from high to low latitudes. Disease-resistance, pest-resistance. tolerance to low fertility soils, as well as production of plants with pods sufficiently high above the ground for efficient mechanica1 harvesting. were all aims of the programme. Although BNF was not explicitly considered as a trait for selection in the breeding/selection programme, maximisation of biological nitrogen fixation (BNF) was favoured by conducting selection and breeding trials on soils low in N. in which the seeds were inoculated with efficient Bradyrhizobium inoculants but without N fertilizer application. Several efficient imported Brad)'rhizobium strains were found to be unable to compete with native soil micro-flora and other previously-introduced Brad)'rhizobium strains. Surprisingly. after being in the soil for many years one or two of these strains had become more competitive while maintaining their high BNF capacity. Today. these strains are included amongst the recommended Brazilian inoculants and have promoted significant improvements in grain yields. The breeding of soybeans in conditions that made grain yield highly dependent o... Mostrar Tudo |
Palavras-Chave: |
Biological nitrogen fixation; BNF; FBN; Fixação biológica de nitrogênio; Soybean. |
Thesagro: |
Glycine Max; Soja. |
Thesaurus Nal: |
Bradyrhizobium. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02525naa a2200241 a 4500 001 1624714 005 2003-10-23 008 2003 bl --- 0-- u #d 100 1 $aALVES, B. J. R. 245 $aThe Success of BNF in soybean in Brazil. 260 $c2003 520 $aApproximately forty years after commercial cropping of soybean in Brazil began, the total area under this crop has reached over 13 M ha with a mean productivity of 2400 kg ha-l. Soybean varieties introduced from the USA and varieties rescued from early introductions in Brazilian territory were part of the Brazilian soybean-breeding programme which spread the crop from high to low latitudes. Disease-resistance, pest-resistance. tolerance to low fertility soils, as well as production of plants with pods sufficiently high above the ground for efficient mechanica1 harvesting. were all aims of the programme. Although BNF was not explicitly considered as a trait for selection in the breeding/selection programme, maximisation of biological nitrogen fixation (BNF) was favoured by conducting selection and breeding trials on soils low in N. in which the seeds were inoculated with efficient Bradyrhizobium inoculants but without N fertilizer application. Several efficient imported Brad)'rhizobium strains were found to be unable to compete with native soil micro-flora and other previously-introduced Brad)'rhizobium strains. Surprisingly. after being in the soil for many years one or two of these strains had become more competitive while maintaining their high BNF capacity. Today. these strains are included amongst the recommended Brazilian inoculants and have promoted significant improvements in grain yields. The breeding of soybeans in conditions that made grain yield highly dependent on BNF. and the continuous attention paid to the selection of Bradyrhizobium strains appropriate for the newly released varieties, have been the main contributors to today's high yields and their great benefit to the Brazilian economy. There seems to be no reason why this ongoing research programme should not serve as an appropriate model to improve BNF inputs to grain legume." in other countries of the world. 650 $aBradyrhizobium 650 $aGlycine Max 650 $aSoja 653 $aBiological nitrogen fixation 653 $aBNF 653 $aFBN 653 $aFixação biológica de nitrogênio 653 $aSoybean 700 1 $aBODDEY, R. M. 700 1 $aURQUIAGA, S. 773 $tPlant and Soil, Dordrecht$gv. 252, p. 1-9, 2003.
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Embrapa Agrobiologia (CNPAB) |
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Registro Completo
Biblioteca(s): |
Embrapa Suínos e Aves. |
Data corrente: |
16/10/2018 |
Data da última atualização: |
16/10/2018 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
SILVA, V. S.; CONTREIRA, C. L.; DE ROSSI, A. C.; KRABBE, E. L.; SAATKAMP, M. G. |
Afiliação: |
VALQUÍRIA SOUZA SILVA, UFT; CRISTIÉLE LANGE CONTREIRA, UFPel; ANDRESSA CRISTINA DE ROSSI, UFSC; EVERTON LUIS KRABBE, CNPSA; MARCIO GILBERTO SAATKAMP, CNPSA. |
Título: |
Estratégias de associação enzimática em dietas de poedeiras semi-pesadas e seu efeito na qualidade de ovos. |
Ano de publicação: |
2018 |
Fonte/Imprenta: |
CONFERÊNCIA FACTA-WPSA BRASIL, 2018, Campinas, SP. Avicultura 4.0: otimização dos processos de produção avícola. Campinas: FACTA, 2018. Prêmio Lamas 2018. |
Idioma: |
Português |
Palavras-Chave: |
Poedeira; Qualidade do ovo. |
Thesagro: |
Dieta; Enzima; Galinha Para Postura; Nutrição. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/184480/1/final8830.pdf
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Marc: |
LEADER 00780nam a2200217 a 4500 001 2097538 005 2018-10-16 008 2018 bl uuuu u00u1 u #d 100 1 $aSILVA, V. S. 245 $aEstratégias de associação enzimática em dietas de poedeiras semi-pesadas e seu efeito na qualidade de ovos.$h[electronic resource] 260 $aCONFERÊNCIA FACTA-WPSA BRASIL, 2018, Campinas, SP. Avicultura 4.0: otimização dos processos de produção avícola. Campinas: FACTA, 2018. Prêmio Lamas 2018.$c2018 650 $aDieta 650 $aEnzima 650 $aGalinha Para Postura 650 $aNutrição 653 $aPoedeira 653 $aQualidade do ovo 700 1 $aCONTREIRA, C. L. 700 1 $aDE ROSSI, A. C. 700 1 $aKRABBE, E. L. 700 1 $aSAATKAMP, M. G.
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