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| Registros recuperados : 186 | |
| 21. |  | HUNGRIA, M.; ARAUJO, R. S. Relato da VI Reuniao de Laboratorios para recomendacao de estirpes de Rhizobium e Bradyrhizobium. In: SIMPOSIO BRASILEIRO SOBRE MICROBIOLOGIA DO SOLO, 3.; REUNIAO DE LABORATORIOS PARA RECOMENDACAO DE ESTIRPES DE RHIZOBIUM E BRADYRHIZOBIUM, 6., 1994, Londrina. Microbiologia do solo: desafios para o seculo XXI - anais. Londrina: IAPAR/EMBRAPA-CNPSo, 1995. p.476-490. Editado por Mariangela Hungria, Elcio Liborio Balota, Arnaldo Colozzi Filho, Diva de S. Andrade.| Biblioteca(s): Embrapa Soja. |
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| 38. | | HUNGRIA, M.; NOGUEIRA, M. A.; ARAUJO, R. S. Eficiência Agronômica de Estirpes de Azospirillum brasilense para Brachiaria spp. (= Urochloa). In: SYMPOSIUM ON BIOLOGICAL NITROGEN FIXATION WITH NON-LEGUMES, 16., LATINAMERICAN WORKSHOP OF PGPR, 4., RELARE, 19., 2018, Foz do Iguaçu. Anais... [Brasília, DF]: Embrapa, 2018. resumo. p. 46. Título do evento por extenso: REUNIÃO DA REDE DE LABORATÓRIOS PARA RECOMENDAÇÃO, PADRONIZAÇÃO E DIFUSÃO DE TECNOLOGIAS DE INOCULANTES MICROBIANOS DE INTERESSE AGRÍCOLA, 19., 2018, Foz do Iguaçu.
Editores Técnicos: Jerri Édson Zilli, Fábio...| Biblioteca(s): Embrapa Soja. |
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| 40. | | ARAUJO, R. S.; BEATTIE, G. A.; HANDELSMAN, J. Extracellular polysaccharide-deficient mutants of Rhizobium strain CIAT899 induce chlorosis in beans. In: KEISTER, D. L.; CREGAN, P. B. (Ed.). The rhizosphere and plant growth. Amsterdam: Kluwer, 1991. p. 183. (Beltsville Symposia in Agricultural Research, 14). Papers presented at a Symposium held May 8-11, 1989, at a Beltsville Agricultural Research Center (BARC), Beltsville, Maryland.| Biblioteca(s): Embrapa Arroz e Feijão. |
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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
|
Biblioteca(s): |
Embrapa Soja. |
|
Data corrente: |
27/07/2009 |
|
Data da última atualização: |
04/08/2017 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Circulação/Nível: |
B - 1 |
|
Autoria: |
CAMPO, R. J.; ARAUJO, R. S.; HUNGRIA, M. |
|
Afiliação: |
RUBENS JOSÉ CAMPO; RICARDO SILVA ARAÚJO, CNPq-MCT; MARIANGELA HUNGRIA DA CUNHA, CNPSO. |
|
Título: |
Nitrogen fixation with the soybean crop in Brazil: compatibility between seed treatment with fungicides and bradyrhizobial inoculants. |
|
Ano de publicação: |
2009 |
|
Fonte/Imprenta: |
Symbiosis, Philadelphia, v. 48, n. 1-3, p. 154-163, Feb. 2009. |
|
ISSN: |
0334-5114 |
|
DOI: |
10.1007/BF03179994 |
|
Idioma: |
Inglês |
|
Conteúdo: |
ABSTRACT: Biological nitrogen fixation with the soybean crop can be improved by seed inoculation with superiorBradyrhizobium strains, but factors that reducethe population of inoculated bradyrhizobiaon the seedwill directly affect the efficiency of the process. Seed treatment with fungicides has been broadly practiced as cheap insurance against seed-and soil-borne pathogens, but toxicity of most fungicides to bradyrhizobia has often been underestimated. The compatibility between seed treatment with fungicides in single or mixed applications (including Benomyl, Captan, Carbendazin, Carboxin, Difenoconazole, Thiabendazole, Thiram, Tolylfluanid) and bradyrhizobial inoculants was examined in laboratory, greenhouse and field experiments during five crop seasons in Brazil. Bacterial survivalon the seeds was severely affected by all fungicides, resulting in mortalities of up to 62% after only 2 h and of 95% after 24 h. Fungicides also reduced nodule number, total N in grains and decreased yield by up to 17%. The toxic effects of fungicides were more drastic in sandy soils without soybean inoculation and cropping history, reducing nodulation by up to 87%, but were also important in areas with established populations of soybean bradyrhizobia. Therefore, fungicides should be used only when the seeds or soil are contaminated with pathogens, otherwise biological N2 fixation may be severely affected. |
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Thesagro: |
Fixação de Nitrogênio; Fungicida; Inoculação; Soja. |
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Categoria do assunto: |
-- |
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Marc: |
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024 7 $a10.1007/BF03179994$2DOI
100 1 $aCAMPO, R. J.
245 $aNitrogen fixation with the soybean crop in Brazil$bcompatibility between seed treatment with fungicides and bradyrhizobial inoculants.
260 $c2009
520 $aABSTRACT: Biological nitrogen fixation with the soybean crop can be improved by seed inoculation with superiorBradyrhizobium strains, but factors that reducethe population of inoculated bradyrhizobiaon the seedwill directly affect the efficiency of the process. Seed treatment with fungicides has been broadly practiced as cheap insurance against seed-and soil-borne pathogens, but toxicity of most fungicides to bradyrhizobia has often been underestimated. The compatibility between seed treatment with fungicides in single or mixed applications (including Benomyl, Captan, Carbendazin, Carboxin, Difenoconazole, Thiabendazole, Thiram, Tolylfluanid) and bradyrhizobial inoculants was examined in laboratory, greenhouse and field experiments during five crop seasons in Brazil. Bacterial survivalon the seeds was severely affected by all fungicides, resulting in mortalities of up to 62% after only 2 h and of 95% after 24 h. Fungicides also reduced nodule number, total N in grains and decreased yield by up to 17%. The toxic effects of fungicides were more drastic in sandy soils without soybean inoculation and cropping history, reducing nodulation by up to 87%, but were also important in areas with established populations of soybean bradyrhizobia. Therefore, fungicides should be used only when the seeds or soil are contaminated with pathogens, otherwise biological N2 fixation may be severely affected.
650 $aFixação de Nitrogênio
650 $aFungicida
650 $aInoculação
650 $aSoja
700 1 $aARAUJO, R. S.
700 1 $aHUNGRIA, M.
773 $tSymbiosis, Philadelphia$gv. 48, n. 1-3, p. 154-163, Feb. 2009.
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