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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
23/10/2003 |
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Data da última atualização: |
23/10/2003 |
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Autoria: |
ALVES, B. J. R.; BODDEY, R. M.; URQUIAGA, S. |
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Título: |
The Success of BNF in soybean in Brazil. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Plant and Soil, Dordrecht, v. 252, p. 1-9, 2003. |
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Idioma: |
Inglês |
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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 |
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Palavras-Chave: |
Biological nitrogen fixation; BNF; FBN; Fixação biológica de nitrogênio; Soybean. |
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Thesagro: |
Glycine Max; Soja. |
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Thesaurus Nal: |
Bradyrhizobium. |
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Categoria do assunto: |
-- |
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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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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| Registros recuperados : 727 | |
| 43. |  | BASANTES, E.; PAZMINO, D.; AVALOS, R.; SANGURIMA, C.; URQUIAGA, S. Evaluación de la fertilizacion nitrogenada en rosas (Rosa sp. var. Classy) usando nitrógeno 15 como trazador Ecuador es Calidad. Revista Científica Ecuatoriana, v. 1, n. 1, p. 35-41, marzo, 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 49. | | SILVA, O. L.; URQUIAGA, S.; BODDEY, R. M.; DOBEREINER, J. Quantificação da fixacao biologica do nitrogênio em arroz alagado; utilizando a tecnica de diluicao isotopica de 15N. In: , eds. In: SEMINARIO BIENAL DE PESQUISA DA UFRRJ, 4, MOSTRA COMUNITARIA DE PESQUISA, ENSINO E PRODUCAO, 1, Rio de Janeiro, 1988. Resumos... Rio de Janeiro, UFRRJ, Departamento de Pesquisa e Pos-Graduacao. p.21.. , 1988.| Biblioteca(s): Embrapa Agrobiologia. |
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| 50. | | GROSSMANN, A. A.; URQUIAGA, S.; BODDEY, R. M.; DOBEREINER, J. Quantificação da fixação biologica de nitrogênio em variedades de cana-de-açúcar promissoras pra alta fixação de nitrogênio, usando 15N. In: , eds. In: SEMINARIO BIENAL DE PESQUISA DA UFRRJ, 4, MOSTRA COMUNITARIA DE PESQUISA, ENSINO E PRODUCAO, 1, Rio de Janeiro, 1988. Resumos... Rio de Janeiro, UFRRJ, Departamento de Pesquisa e Pos-Graduacao. p.15. , 1988.| Biblioteca(s): Embrapa Agrobiologia. |
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| 55. | | URQUIAGA, S.; BODDEY, R. M.; NEVES, M. C. P. A necessidade de uma revolucao mais verde. In: SIQUEIRA, J.O.; MOREIRA, F.M.S.; LOPES, A.S.; GUILHERME, L.R.G.; FAQUIN, V.; FURTINI NETO, A.E.; CARVALHO, J.G., eds. Inter-relacao fertilidade, biologia do solo e nutricao de plantas. Vicosa: SBCS; Lavras: UFLA/DCS, 1999. p.175-182.| Biblioteca(s): Embrapa Agrobiologia. |
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| 56. | | URQUIAGA, S.; BODDEY, R. M.; NEVES, M. C. P. A necessidade de uma revolução mais verde. In: SIQUEIRA, J. O.; MOREIRA, F. M. S.; LOPES, A. S.; GUILHERME, L. R. G.; FAQUIN, V.; FURTINI NETO, A. E.; CARVALHO, J. G.(Ed.). Inter-relação fertilidade, biologia do solo e nutrição de plantas. Viçosa: SBCS; Lavras: UFLA/DCS, 1999. p. 175-182.| Biblioteca(s): Embrapa Agrobiologia. |
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| Registros recuperados : 727 | |
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