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 | Acesso ao texto completo restrito à biblioteca da Embrapa Cerrados. Para informações adicionais entre em contato com cpac.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Cerrados; Embrapa Soja. |
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Data corrente: |
01/07/2004 |
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Data da última atualização: |
24/04/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MENDES, I. de C.; HUNGRIA, M.; VARGAS, M. A. T. |
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Afiliação: |
IEDA DE CARVALHO MENDES, CPAC; MARIANGELA HUNGRIA DA CUNHA, CNPSO; MILTON ALEXANDRE TEIXEIRA VARGAS, BIOAGRI. |
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Título: |
Establishment of Bradyrhizobium japonicum and B. elkanii strains in a Brazilian Cerrado oxisol. |
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Ano de publicação: |
2004 |
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Fonte/Imprenta: |
Biology and Fertility of Soils, Berlin, v. 40, p. 28-35, 2004. |
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ISSN: |
0178-2762 |
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DOI: |
10.1007/s00374-004-0739-1 |
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Idioma: |
Inglês |
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Conteúdo: |
The competition with established soil populations of Bradyrhizobium able to nodulate soybean has been one of the major constraints to the introduction of more efficient strains in Cerrado soils. The effects of nodulation establisment and persistence of four serologically distinct strains of Bradyrhizobium japonicum (CPAC 15 and CPAC 7, belonging to serogroups USDA 123 and CB 1,809) and B. elkanii (29 W and SEMIA 587, belonging to serogroups 29 W and 587) were examined. These strains were introduced in a dark-red oxisol, without indigenous populations of soybean bradyrhizobia, and were evaluated for 6 years. The experimental design was a completely randomized block with four replicates. In the first year, besides the inoculation treatments, there was also an uninoculated control. In the second year,, the main plots were split into three sub-plots and treatments consisted of an uninoculated control, CPAC 7 and CPAC 15. In the third year, the entire area was inoculated with CPAC 7. In the fourth and sixth years, the plots were planted with soybean without inoculation, and in the fifth year the plots were left fallow. The strains introduced in the first year influenced nodule occupancy by strain CPAC 7 until the third sucessive growing season. By the forth sixth years, as a consequence of dispersal of strains serologically related to serocluster 123 in the entire experimental area, this serogroup dominated the nodulation, occurring, on average, in more than 50% of the nodules of the treatments where it had never been inoculated. MenosThe competition with established soil populations of Bradyrhizobium able to nodulate soybean has been one of the major constraints to the introduction of more efficient strains in Cerrado soils. The effects of nodulation establisment and persistence of four serologically distinct strains of Bradyrhizobium japonicum (CPAC 15 and CPAC 7, belonging to serogroups USDA 123 and CB 1,809) and B. elkanii (29 W and SEMIA 587, belonging to serogroups 29 W and 587) were examined. These strains were introduced in a dark-red oxisol, without indigenous populations of soybean bradyrhizobia, and were evaluated for 6 years. The experimental design was a completely randomized block with four replicates. In the first year, besides the inoculation treatments, there was also an uninoculated control. In the second year,, the main plots were split into three sub-plots and treatments consisted of an uninoculated control, CPAC 7 and CPAC 15. In the third year, the entire area was inoculated with CPAC 7. In the fourth and sixth years, the plots were planted with soybean without inoculation, and in the fifth year the plots were left fallow. The strains introduced in the first year influenced nodule occupancy by strain CPAC 7 until the third sucessive growing season. By the forth sixth years, as a consequence of dispersal of strains serologically related to serocluster 123 in the entire experimental area, this serogroup dominated the nodulation, occurring, on average, in more than 50% of the nodules of... Mostrar Tudo |
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Thesagro: |
Cerrado; Fixação de Nitrogênio; Glycine Max; Inoculação; Microbiologia; Soja. |
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Thesaurus Nal: |
Bradyrhizobium; Nitrogen fixation. |
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Categoria do assunto: |
--
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02329naa a2200265 a 4500
001 1567846
005 2024-04-24
008 2004 bl uuuu u00u1 u #d
022 $a0178-2762
024 7 $a10.1007/s00374-004-0739-1$2DOI
100 1 $aMENDES, I. de C.
245 $aEstablishment of Bradyrhizobium japonicum and B. elkanii strains in a Brazilian Cerrado oxisol.$h[electronic resource]
260 $c2004
520 $aThe competition with established soil populations of Bradyrhizobium able to nodulate soybean has been one of the major constraints to the introduction of more efficient strains in Cerrado soils. The effects of nodulation establisment and persistence of four serologically distinct strains of Bradyrhizobium japonicum (CPAC 15 and CPAC 7, belonging to serogroups USDA 123 and CB 1,809) and B. elkanii (29 W and SEMIA 587, belonging to serogroups 29 W and 587) were examined. These strains were introduced in a dark-red oxisol, without indigenous populations of soybean bradyrhizobia, and were evaluated for 6 years. The experimental design was a completely randomized block with four replicates. In the first year, besides the inoculation treatments, there was also an uninoculated control. In the second year,, the main plots were split into three sub-plots and treatments consisted of an uninoculated control, CPAC 7 and CPAC 15. In the third year, the entire area was inoculated with CPAC 7. In the fourth and sixth years, the plots were planted with soybean without inoculation, and in the fifth year the plots were left fallow. The strains introduced in the first year influenced nodule occupancy by strain CPAC 7 until the third sucessive growing season. By the forth sixth years, as a consequence of dispersal of strains serologically related to serocluster 123 in the entire experimental area, this serogroup dominated the nodulation, occurring, on average, in more than 50% of the nodules of the treatments where it had never been inoculated.
650 $aBradyrhizobium
650 $aNitrogen fixation
650 $aCerrado
650 $aFixação de Nitrogênio
650 $aGlycine Max
650 $aInoculação
650 $aMicrobiologia
650 $aSoja
700 1 $aHUNGRIA, M.
700 1 $aVARGAS, M. A. T.
773 $tBiology and Fertility of Soils, Berlin$gv. 40, p. 28-35, 2004.
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Embrapa Cerrados (CPAC) |
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| 1. |  | GUIMARÃES, C. M.; OLIVEIRA, J. P. de; BRESEGHELLO, F.; SILVA, S. I. da; OLIVEIRA, J. L. de; SOUSA, J. P. N. de; IBRAHIM, F. N. Efeito da compactação do solo sobre o arroz dos grupos japonica e indica. In: CONGRESSO BRASILEIRO DE ARROZ IRRIGADO, 6., 2009, Porto Alegre. Estresses e sustentabilidade: desafios para a lavoura arrozeira: anais. Porto Alegre: Palotti, 2009. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso / Nota Técnica |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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