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Registro Completo |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
07/12/2004 |
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Data da última atualização: |
24/04/2017 |
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Autoria: |
ALVES, E. R. de A. |
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Afiliação: |
ELISEU ROBERTO DE ANDRADE ALVES, DE/PR. |
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Título: |
Reflexões sobre política agrícola. |
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Ano de publicação: |
1993 |
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Fonte/Imprenta: |
Revista de Economia e Sociologia Rural, Brasilia, v.31, n.2, p.91-102, abr./jun. 1993. |
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Idioma: |
Português |
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Notas: |
Na publicação: Eliseu Alves. |
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Palavras-Chave: |
Agricultural policies; Ciência e tecnologia. |
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Thesagro: |
Política Agrícola. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/159289/1/Reflexoes-sobre-politica-agricola.pdf
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Marc: |
LEADER 00517naa a2200157 a 4500
001 1112325
005 2017-04-24
008 1993 bl uuuu u00u1 u #d
100 1 $aALVES, E. R. de A.
245 $aReflexões sobre política agrícola.$h[electronic resource]
260 $c1993
500 $aNa publicação: Eliseu Alves.
650 $aPolítica Agrícola
653 $aAgricultural policies
653 $aCiência e tecnologia
773 $tRevista de Economia e Sociologia Rural, Brasilia$gv.31, n.2, p.91-102, abr./jun. 1993.
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Embrapa Unidades Centrais (AI-SEDE) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Roraima. Para informações adicionais entre em contato com cpafrr.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Roraima. |
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Data corrente: |
06/12/2018 |
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Data da última atualização: |
06/12/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
TORRES JÚNIOR, C. V.; ARAUJO, K. E. C.; ALVES, L. S.; SOUZA, S. R. de; SANTOS, L. A.; SANTA-CATARINA, C.; SILVA, K. da; PEREIRA, G. M. D.; XAVIER, G. R.; ZILLI, J. E. |
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Afiliação: |
CARLOS VERGARA TORRES JUNIOR, UFRRJ; KARLA EMANUELLE CAMPOS ARAUJO, UFRRJ; LUIZIENE SOARES ALVES, UFRRJ; SÔNIA REGINA DE SOUZA, UFRRJ; LEANDRO AZEVEDO SANTOS, UFRRJ; CLAUDETE SANTA-CATARINA, UENF; KRISLE DA SILVA, CPAF-RR; GILMARA MARIA DUARTE PEREIRA, UFRR; GUSTAVO RIBEIRO XAVIER, CNPAB; JERRI EDSON ZILLI, CNPAB. |
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Título: |
Contribution of dark septate fungi to the nutrient uptake and growth of rice plants |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Brazilian Journal of Microbiology, Environmental Microbiology, v. 49, n. 1, p. 67-78, jan./mar. 2018. |
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DOI: |
https://doi.org/10.1016/j.bjm.2017.04.010 |
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Idioma: |
Inglês |
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Notas: |
Available online, 23 August 2017. |
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Conteúdo: |
The use of dark septate fungi (DSE) to promote plant growth can be beneficial to agriculture, and these organisms are important allies in the search for sustainable agriculture practices. This study investigates the contribution of dark septate fungi to the absorption of nutrients by rice plants and their ensuing growth. Four dark septate fungi isolates that were identified by Internal transcribed spacer phylogeny were inoculated in rice seeds (Cv. Piauí). The resulting root colonization was estimated and the kinetic parameters Vmax and Km were calculated from the nitrate contents of the nutrient solution. The macronutrient levels in the shoots, and the NO3?-N, NH4+-N, free amino-N and soluble sugars in the roots, sheathes and leaves were measured. The rice roots were significantly colonized by all of the fungi, but in particular, isolate A103 increased the fresh and dry biomass of the shoots and the number of tillers per plant, amino-N, and soluble sugars as well as the N, P, K, Mg and S contents in comparison with the control treatment. When inoculated with isolates A103 and A101, the plants presented lower Km values, indicating affinity increases for NO3?-N absorption. Therefore, the A103 Pleosporales fungus presented the highest potential for the promotion of rice plant growth, increasing the tillering and nutrients uptake, especially N (due to an enhanced affinity for N uptake) and P. |
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Palavras-Chave: |
Colonization; Oryza sativa L. |
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Thesaurus NAL: |
tillering. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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Marc: |
LEADER 02332naa a2200289 a 4500
001 2100844
005 2018-12-06
008 2018 bl --- 0-- u #d
024 7 $ahttps://doi.org/10.1016/j.bjm.2017.04.010$2DOI
100 1 $aTORRES JÚNIOR, C. V.
245 $aContribution of dark septate fungi to the nutrient uptake and growth of rice plants$h[electronic resource]
260 $c2018
500 $aAvailable online, 23 August 2017.
520 $aThe use of dark septate fungi (DSE) to promote plant growth can be beneficial to agriculture, and these organisms are important allies in the search for sustainable agriculture practices. This study investigates the contribution of dark septate fungi to the absorption of nutrients by rice plants and their ensuing growth. Four dark septate fungi isolates that were identified by Internal transcribed spacer phylogeny were inoculated in rice seeds (Cv. Piauí). The resulting root colonization was estimated and the kinetic parameters Vmax and Km were calculated from the nitrate contents of the nutrient solution. The macronutrient levels in the shoots, and the NO3?-N, NH4+-N, free amino-N and soluble sugars in the roots, sheathes and leaves were measured. The rice roots were significantly colonized by all of the fungi, but in particular, isolate A103 increased the fresh and dry biomass of the shoots and the number of tillers per plant, amino-N, and soluble sugars as well as the N, P, K, Mg and S contents in comparison with the control treatment. When inoculated with isolates A103 and A101, the plants presented lower Km values, indicating affinity increases for NO3?-N absorption. Therefore, the A103 Pleosporales fungus presented the highest potential for the promotion of rice plant growth, increasing the tillering and nutrients uptake, especially N (due to an enhanced affinity for N uptake) and P.
650 $atillering
653 $aColonization
653 $aOryza sativa L
700 1 $aARAUJO, K. E. C.
700 1 $aALVES, L. S.
700 1 $aSOUZA, S. R. de
700 1 $aSANTOS, L. A.
700 1 $aSANTA-CATARINA, C.
700 1 $aSILVA, K. da
700 1 $aPEREIRA, G. M. D.
700 1 $aXAVIER, G. R.
700 1 $aZILLI, J. E.
773 $tBrazilian Journal of Microbiology, Environmental Microbiology$gv. 49, n. 1, p. 67-78, jan./mar. 2018.
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