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Registro Completo |
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Biblioteca(s): |
Embrapa Agrobiologia. |
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Data corrente: |
24/05/2004 |
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Data da última atualização: |
24/05/2004 |
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Autoria: |
MARTINS, L. M. V.; XAVIER, G. R.; RANGEL, F. W.; RIBEIRO, J. R. A.; NEVES, M. C. P.; MORGADO, L. B.; RUMJANEK, N. G. |
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Título: |
Contribution of biological nitrogen fixation to cowpea: a strategy for improving grain yield in the semi-arid region of Brazil. |
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Ano de publicação: |
2003 |
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Fonte/Imprenta: |
Biology and Fertility of Soils, Berlin, v. 38, p. 333-339, 2003. |
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Idioma: |
Inglês |
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Conteúdo: |
Nodulating bacteria from the family Rhizobiaceae are common in the semi-arid tropics around the world. The Brazilian semi-arid region extends over 95 million hectares of which only 3% is suitable for irrigation, therefore leaving an immense dryland area to be exploited by peasant farmers, who often lack appropriate technologies for sustainable management. Cowpea is an important crop in this area, representing the staple protein source for human nutrition. This work aimed to identify rhizobial strains capable of guaranteeing efficient nitrogen derived from biological fixation for cowpea cultivated in dryland areas, evaluating not just efficiency but also the ecological parameters of competitiveness and survival in the soil. Grain yield and nodulation parameters showed that strain BR 3267 is capable of establishing efficient nodulation, improving both yield and total N accumulated in grain. Cowpea inoculated with strain BR 3267 showed grain productivity similar to plants receiving 50 kg of N per hectare, which is the amount of fertilizer commonly used in the north-east region. These characteristics associated with previously determined ecological properties makes strain BR 3267 an important resource for the optimization of biological nitrogen fixation in cowpea in the dryland areas of the semi-arid tropics. Data on the dynamics of rhizobial populations in such areas have shown that (1) the naturalized rhizobium population is very small and, by themselves, do not promote proper nodulation and, (2) the inoculant rhizobia do not persist between crops. Such characteristics represent an opportunity for the introduction of superior rhizobia strains, such as BR 3267, during the cowpea crop. MenosNodulating bacteria from the family Rhizobiaceae are common in the semi-arid tropics around the world. The Brazilian semi-arid region extends over 95 million hectares of which only 3% is suitable for irrigation, therefore leaving an immense dryland area to be exploited by peasant farmers, who often lack appropriate technologies for sustainable management. Cowpea is an important crop in this area, representing the staple protein source for human nutrition. This work aimed to identify rhizobial strains capable of guaranteeing efficient nitrogen derived from biological fixation for cowpea cultivated in dryland areas, evaluating not just efficiency but also the ecological parameters of competitiveness and survival in the soil. Grain yield and nodulation parameters showed that strain BR 3267 is capable of establishing efficient nodulation, improving both yield and total N accumulated in grain. Cowpea inoculated with strain BR 3267 showed grain productivity similar to plants receiving 50 kg of N per hectare, which is the amount of fertilizer commonly used in the north-east region. These characteristics associated with previously determined ecological properties makes strain BR 3267 an important resource for the optimization of biological nitrogen fixation in cowpea in the dryland areas of the semi-arid tropics. Data on the dynamics of rhizobial populations in such areas have shown that (1) the naturalized rhizobium population is very small and, by themselves, do not promote proper... Mostrar Tudo |
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Palavras-Chave: |
Biological nitrogen fixation; BNF; Caupi; FBN; Fixação biológica de nitrogênio; Survival. |
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Thesagro: |
Feijão de Corda; Rhizobium; Sobrevivência. |
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Thesaurus Nal: |
cowpeas. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02616naa a2200313 a 4500
001 1625826
005 2004-05-24
008 2003 bl --- 0-- u #d
100 1 $aMARTINS, L. M. V.
245 $aContribution of biological nitrogen fixation to cowpea$ba strategy for improving grain yield in the semi-arid region of Brazil.
260 $c2003
520 $aNodulating bacteria from the family Rhizobiaceae are common in the semi-arid tropics around the world. The Brazilian semi-arid region extends over 95 million hectares of which only 3% is suitable for irrigation, therefore leaving an immense dryland area to be exploited by peasant farmers, who often lack appropriate technologies for sustainable management. Cowpea is an important crop in this area, representing the staple protein source for human nutrition. This work aimed to identify rhizobial strains capable of guaranteeing efficient nitrogen derived from biological fixation for cowpea cultivated in dryland areas, evaluating not just efficiency but also the ecological parameters of competitiveness and survival in the soil. Grain yield and nodulation parameters showed that strain BR 3267 is capable of establishing efficient nodulation, improving both yield and total N accumulated in grain. Cowpea inoculated with strain BR 3267 showed grain productivity similar to plants receiving 50 kg of N per hectare, which is the amount of fertilizer commonly used in the north-east region. These characteristics associated with previously determined ecological properties makes strain BR 3267 an important resource for the optimization of biological nitrogen fixation in cowpea in the dryland areas of the semi-arid tropics. Data on the dynamics of rhizobial populations in such areas have shown that (1) the naturalized rhizobium population is very small and, by themselves, do not promote proper nodulation and, (2) the inoculant rhizobia do not persist between crops. Such characteristics represent an opportunity for the introduction of superior rhizobia strains, such as BR 3267, during the cowpea crop.
650 $acowpeas
650 $aFeijão de Corda
650 $aRhizobium
650 $aSobrevivência
653 $aBiological nitrogen fixation
653 $aBNF
653 $aCaupi
653 $aFBN
653 $aFixação biológica de nitrogênio
653 $aSurvival
700 1 $aXAVIER, G. R.
700 1 $aRANGEL, F. W.
700 1 $aRIBEIRO, J. R. A.
700 1 $aNEVES, M. C. P.
700 1 $aMORGADO, L. B.
700 1 $aRUMJANEK, N. G.
773 $tBiology and Fertility of Soils, Berlin$gv. 38, p. 333-339, 2003.
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Registro original: |
Embrapa Agrobiologia (CNPAB) |
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| Registros recuperados : 15 | |
| 6. |  | MARTINS, L. M. V.; XAVIER, G. R.; RANGEL, F. W.; RIBEIRO, J. R. A.; NEVES, M. C. P.; MORGADO, L. B.; RUMJANEK, N. G. Contribution of biological nitrogen fixation to cowpea: a strategy for improving grain yield in the semi-árid region of Brazil. Biology and Fertility of Soils, Berlin, v. 38, p. 333-339, 2003.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - B |
| Biblioteca(s): Embrapa Semiárido. |
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| 7. | | MARTINS, L. M. V.; XAVIER, G. R.; RANGEL, F. W.; RIBEIRO, J. R. A.; NEVES, M. C. P.; MORGADO, L. B.; RUMJANEK, N. G. Contribution of biological nitrogen fixation to cowpea: a strategy for improving grain yield in the semi-arid region of Brazil. Biology and Fertility of Soils, Berlin, v. 38, p. 333-339, 2003.| Biblioteca(s): Embrapa Agrobiologia. |
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| 8. | | RANGEL, F. W.; MARTINS, L. M. V.; XAVIER, G. R.; RIBEIRO, J. R. A.; MORGADO, L. B.; NEVES, M. C. P.; RUMJANEK, N. G. Estudo do comportamento de estirpes eficientes de rizóbio inoculado em caupi frente a população nativa de rizóbio da região semi-árida do Nordeste do Brasil. In: JORNADA DE INICIAÇÃO CIENTIFICA DA UFRRJ, 11., 2001, Seropedica. Anais... Seropedica: Ed. Universidade Rural, 2001. p.25-28.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 9. | | MARTINS, L. M. V.; RANGEL, F. W.; XAVIER, G. R.; RIBEIRO, J. R. A.; MORGADO, L. B.; NEVES, M. C. P.; RUMJANEK, N. G. Flutuações na população de rizóbio presente no solo de área de sequeiro da região do Nordeste brasileiro após o cultivo do caupi inoculado. In: CONGRESSO BRASILEIRO DE MICROBIOLOGIA, 21., 2001, Foz do Iguaçu. Resumos... Foz do Iguaçu: Sociedade Brasileira de Microbiologia, 2001. p. 266.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 10. | | SILVA, L. L. G. G. da; ALVES, G. C.; RIBEIRO, J. R. A.; URQUIAGA, S.; SOUTO, S. M.; FIGUEIREDO, M. V. B.; BURITY, H. A. Fixação biológica de nitrogênio em pastagens com diferentes intensidades de corte. Archivos de Zootecnia, v. 59, n. 225, p. 21-340, 2010.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
| Biblioteca(s): Embrapa Agrobiologia. |
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| 11. | | REIS, V. M.; CRUZ, G. B.; FERREIRA, A.; FERNANDES, M. F.; FERREIRA, A. C.; REIS, F. B.; RIBEIRO, J. R. A.; SALLES, J. F.; WEBER, O. B. Produção e caracterização de soros policlonais para a detecção de bactérias diazotróficas. Seropédica: EMBRAPA-CNPAB, 1997. 11 p. (EMBRAPA-CNPAB. Documentos, 30).| Biblioteca(s): Embrapa Agrobiologia. |
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| 13. | | RANGEL, F. W.; MARTINS, L. M. V.; XAVIER, G. R.; RIBEIRO, J. R. A.; MORGADO, L. B.; NEVES, M. C. P.; RUMJANEK, N. G. Influencia da inoculacao de caupi com estirpes eficientes de rizobio na populacao rizobiana nativa no solo da regiao semi-arida brasileira. In: REUNIAO NACIONAL DE PESQUISA DE CAUPI, 5., 2001, Teresina. Anais... Teresina: Embrapa Meio Norte, 2001. p. 273-278.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| 14. | | COUTINHO, H. L. da C.; KAY, H. E.; MANFIO, G. P.; NEVES, M. C. P.; RIBEIRO, J. R. A.; RUMJANEK, N. G.; BERINGER, J. E. Molecular evidence for shifts in polysaccharide composition associated with adaptation of soybean Bradyrhizobium strains to the Brazilian Cerrado soils Environmental Microbiology, v. 1, n. 5, p. 401-408, Sept. 1999.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: Internacional - A |
| Biblioteca(s): Embrapa Solos. |
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| 15. | | RANGEL, F. W.; MARTINS, L. M. V.; XAVIER, G. R.; RIBEIRO, J. R. A.; MORGADO, L. B.; NEVES, M. C. P.; RUMJANEK, N. G. Ocupacao de inoculante rizobiano em nódulos de caupi (Vigna unguiculata) sob sistema irrigado na regiao semi-arida do Brasil. In: JORNADA DE INICIAÇÃO CIENTÍFICA DA UFRRJ, 10., 2000, Seropedica, Anais... Seropedica: Ed.Universidade Rural, 2000. p.101-102.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Semiárido. |
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| Registros recuperados : 15 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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