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Registro Completo |
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
24/03/1993 |
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Data da última atualização: |
26/10/2004 |
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Autoria: |
BROCKWELL, J. |
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Título: |
Ecology of Bradyrhizobium japonicum. |
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Ano de publicação: |
1989 |
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Fonte/Imprenta: |
In: CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 4., 1989, Buenos Aires. Actas... Buenos Aires: AASOJA, 1989. |
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Volume: |
t.5 |
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Páginas: |
p.2193-2203. |
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Idioma: |
Inglês |
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Conteúdo: |
Since World Soybean Research Conference III in 1984, ecological studies of soybean rhizobia have been dominated by experiments on competition between strains including both fast and slow-growing types. This has led to the development of procedures, mostly immunological, for distinguishing between reisolates from the field. There is increasing awareness of numerical considerations in relation to competitive success in forming nodules. Substantial work has been devoted to persistence in the soil. Nevertheless, we are little closer than in 1984 to the capacity for successful inoculation of strains into soils with established resident populations of rhizobia. Bacteria of the Rhizobiaceae possess a suite of nod genes which are involved in root infection and nodule formation. Flavonoid compounds of host origin activate these genes. the phenomena have implications for an understanding of the processes involved in competition between thizobia in nodule formation. It is a matter of urgency to devise strategies for legume cultivation which optimize N2 fixation, conserve soil nitrogen and augment the pool of soil N for the benefit of rotational crops. Research since 1984 has indicated that early colonization of the legume rhizosphere is a critical phase of the symbiosis determining the extent of nodulation and the amount of N fixed by the crop. By using simple estrategies for manipulation of inocula, soil NO3 and soil moisture and by choosing freely-nodulating soybean cultivars, it is feasible to grow crops that are both ... MenosSince World Soybean Research Conference III in 1984, ecological studies of soybean rhizobia have been dominated by experiments on competition between strains including both fast and slow-growing types. This has led to the development of procedures, mostly immunological, for distinguishing between reisolates from the field. There is increasing awareness of numerical considerations in relation to competitive success in forming nodules. Substantial work has been devoted to persistence in the soil. Nevertheless, we are little closer than in 1984 to the capacity for successful inoculation of strains into soils with established resident populations of rhizobia. Bacteria of the Rhizobiaceae possess a suite of nod genes which are involved in root infection and nodule formation. Flavonoid compounds of host origin activate these genes. the phenomena have implications for an understanding of the processes involved in competition between thizobia in nodule formation. It is a matter of urgency to devise strategies for legume cultivation which optimize N2 fixation, conserve soil nitrogen and augment the pool of soil N for the benefit of rotational crops. Research since 1984 has indicated that early colonization of the legume rhizosphere is a critical phase of the symbiosis determining the extent of nodulation and the amount of N fixed by the crop. By using simple estrategies for manipulation of inocula, soil NO3 and soil moisture and by choosing freely-nodulating soybean cultivars, it is ... Mostrar Tudo |
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Palavras-Chave: |
Fixacao; Fixation; Inoculation; Soybean. |
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Thesagro: |
Bactéria; Bradyrhizobium Japonicum; Inoculação; Nitrogênio; Soja. |
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Thesaurus Nal: |
Australia; nitrogen. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02259naa a2200277 a 4500
001 1451723
005 2004-10-26
008 1989 bl uuuu u00u1 u #d
100 1 $aBROCKWELL, J.
245 $aEcology of Bradyrhizobium japonicum.
260 $c1989
300 $ap.2193-2203. t.5
490 $vt.5
520 $aSince World Soybean Research Conference III in 1984, ecological studies of soybean rhizobia have been dominated by experiments on competition between strains including both fast and slow-growing types. This has led to the development of procedures, mostly immunological, for distinguishing between reisolates from the field. There is increasing awareness of numerical considerations in relation to competitive success in forming nodules. Substantial work has been devoted to persistence in the soil. Nevertheless, we are little closer than in 1984 to the capacity for successful inoculation of strains into soils with established resident populations of rhizobia. Bacteria of the Rhizobiaceae possess a suite of nod genes which are involved in root infection and nodule formation. Flavonoid compounds of host origin activate these genes. the phenomena have implications for an understanding of the processes involved in competition between thizobia in nodule formation. It is a matter of urgency to devise strategies for legume cultivation which optimize N2 fixation, conserve soil nitrogen and augment the pool of soil N for the benefit of rotational crops. Research since 1984 has indicated that early colonization of the legume rhizosphere is a critical phase of the symbiosis determining the extent of nodulation and the amount of N fixed by the crop. By using simple estrategies for manipulation of inocula, soil NO3 and soil moisture and by choosing freely-nodulating soybean cultivars, it is feasible to grow crops that are both ...
650 $aAustralia
650 $anitrogen
650 $aBactéria
650 $aBradyrhizobium Japonicum
650 $aInoculação
650 $aNitrogênio
650 $aSoja
653 $aFixacao
653 $aFixation
653 $aInoculation
653 $aSoybean
773 $tIn: CONFERENCIA MUNDIAL DE INVESTIGACION EN SOJA, 4., 1989, Buenos Aires. Actas... Buenos Aires: AASOJA, 1989.
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Registro original: |
Embrapa Soja (CNPSO) |
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| Registros recuperados : 1 | |
| 1. |  | PEOPLES, M. B.; BROCKWELL, J.; HERRIDGE, D. F.; ROCHESTER, I. J.; ALVES, B. J. R.; URQUIAGA, S.; BODDEY, R. M.; DAKORA, F. D.; BHATTARAI, S.; MASKEY, S. L.; SAMPET, C.; RERKASEM, B.; KHAN, D. F.; HAUGGAARD-NIELSEN, H.; JENSEN, E. S. The contributions of nitrogen-fixing crop legumes to the productivity of agricultural systems. Symbiosis, Philadelphia, v. 48, p. 1-17, 2009| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Agrobiologia. |
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