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| 1. |  | PORTO, M. L.; LONGHI, H. M.; CITADINI, V.; RAMOS, R. F.; MARIATH, J. E. de A. Levantamento fitossociológico em área de "mata-de-baixio" na estação experimental de Silvacultura tropical - IMPA - Manaus, Amazonas. Acta Amazonica, Manaus, v. 6, n. 3, p. 301-318, 1976.| Biblioteca(s): Embrapa Florestas. |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Soja. Para informações adicionais entre em contato com valeria.cardoso@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
18/04/1994 |
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Data da última atualização: |
27/05/2019 |
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Autoria: |
HUNGRIA, M.; FRANCO, A. A.; SPRENT, J. I. |
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Afiliação: |
EMBRAPA-CNPSo, Cx. Postal 1061, CEP 86001-970, Londrina, PR. |
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Título: |
New sources of high-temperature tolerant rhizobia for Phaseolus vulgaris L. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Plant and Soil, v.149, p.103-109, 1993. |
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Idioma: |
Inglês
Português |
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Conteúdo: |
Common bean (Phaseolus vulgaris L.) represents an important crop in tropics, but previous screenings of Rhizobium leguminosarum bv. phaseoli did not show strains that could fix N2 im symbiosis with bean at temperatures higher than 35o.C (Hungria and Franco, 1993). However, there are other rhizobia and bradyrhizobia species that nodulate some tropical leguminous tress and can fix N2 at high temperatures.In a trial of rhizobial strains isolated from leguminous trees, we found that 14 out of 21 isolates from Gliricidia. Lonchocarpus and Leucaena were also able to nodulate common beans at optimal temperatures (28/23o.C. day/night). When we exposed beans inoculated with these strains to high temperature conditions, 40oC/8h/day, some of them accumulated at flowering time as much or more N as bean plants receiving mineral N. These broad host-range sources of rhizobia capable of fixing nitrogen with bean at high temperature seem to have the potential to improve yields in tropical soils. |
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Palavras-Chave: |
Common beans. |
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Thesagro: |
Gliricidia; Leucaena; Lonchocarpus; Nitrogenase. |
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Thesaurus NAL: |
nitrogen fixation. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01562naa a2200217 a 4500
001 1457766
005 2019-05-27
008 1993 bl --- 0-- u #d
100 1 $aHUNGRIA, M.
245 $aNew sources of high-temperature tolerant rhizobia for Phaseolus vulgaris L.
260 $c1993
520 $aCommon bean (Phaseolus vulgaris L.) represents an important crop in tropics, but previous screenings of Rhizobium leguminosarum bv. phaseoli did not show strains that could fix N2 im symbiosis with bean at temperatures higher than 35o.C (Hungria and Franco, 1993). However, there are other rhizobia and bradyrhizobia species that nodulate some tropical leguminous tress and can fix N2 at high temperatures.In a trial of rhizobial strains isolated from leguminous trees, we found that 14 out of 21 isolates from Gliricidia. Lonchocarpus and Leucaena were also able to nodulate common beans at optimal temperatures (28/23o.C. day/night). When we exposed beans inoculated with these strains to high temperature conditions, 40oC/8h/day, some of them accumulated at flowering time as much or more N as bean plants receiving mineral N. These broad host-range sources of rhizobia capable of fixing nitrogen with bean at high temperature seem to have the potential to improve yields in tropical soils.
650 $anitrogen fixation
650 $aGliricidia
650 $aLeucaena
650 $aLonchocarpus
650 $aNitrogenase
653 $aCommon beans
700 1 $aFRANCO, A. A.
700 1 $aSPRENT, J. I.
773 $tPlant and Soil$gv.149, p.103-109, 1993.
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