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| Registros recuperados : 31 | |
| 7. |  | FERREIRA, J. L.; COELHO, C. H. M.; MAGALHAES, P. C.; SANTÁNA, G. C.; BORÉM, A. Evaluation of mineral content in maize under flooding. Crop Breeding and Applied Biotechnology, Londrina, v. 8, n. 2, p. 134-140, 2008.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 8. | | GAZZOLA, R.; COELHO, C. H. M.; SOUZA, G. da S. e; MARRA, R.; OLIVEIRA, A. J. de. Mercado de carnes: aspectos descritivos e experiências com o uso de modelos de equilíbrio parcial e de espaço de estados. Revista de Política Agrícola, Brasília, DF, ano 15, n. 1, p. 84-101, jan./mar. 2006.| Biblioteca(s): Embrapa Agricultura Digital; Embrapa Unidades Centrais. |
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| 9. | | QUESADA, D. M.; COELHO, C. H. M.; BODDEY, R. M.; REIS, V. M.; ALVES, B. J. R.; URQUIAGA, S. Efeito da adubação verde e N-fertilizante no acúmulo de biomassa e fixação biológica de nitrogênio em genótipos de capim elefante (Pennisetum purpureum SCHUM.). Agronomia, Seropédica/RJ, v. 37, n. 2, p. 54-59, 2003. . Effect of green manure and N fertilizer on biomass accumulation and biological nitrogen fixation in different genotypes of efephant grass (Pennisetum purpureum SCHUM.).| Biblioteca(s): Embrapa Agrobiologia. |
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| 10. | | FERREIRA, J. L.; COELHO, C. H. M.; MAGALHAES, P. C.; GAMA, E. E. G. e; BORÉM, L. Genetic variability and morphological modifications in flooding tolerance in maize, variety BRS-4154. Crop Breeding and Applied Biotechnology, Londrina, v. 7, n. 3, p. 314-320, 2007.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| 11. | | XAVIER, R. P.; COELHO, C. H. M.; QUESADA, D. M.; RESENDE, A. S. de; ALVES, B. J. R.; URQUIAGA, S. Influência dos adubos verdes na decomposição e liberação de nutrientes da palhada de cana-de-açúcar. Agronomia, Seropédica/RJ, v. 37, n. 2, p. 13-18, 2003. Influence of green manures on the decomposition and liberation of nutrients by sugarcane trash.| Biblioteca(s): Embrapa Agrobiologia. |
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| 13. | | RESENDE, A. S.; XAVIER, R. P.; QUESADA, D. M.; COELHO, C. H. M.; BODDEY, R. M.; ALVES, B. J. R.; GUERRA, J. G. M.; URQUIAGA, S. Incorporação de leguminosas para fins de adubação verde em pré-plantio de cana-de-açúcar. Seropédica: Embrapa Agrobiologia, 2000. 18 p. (Embrapa Agrobiologia. Documentos, 124).| Biblioteca(s): Embrapa Agrobiologia. |
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| 14. | | POLIDORO, J. C.; RESENDE, A. S. de; QUESADA, D. M.; XAVIER, R. P.; COELHO, C. H. M.; ALVES, B. J. R.; BODDEY, R. M.; URQUIAGA, S. Levantamento da contribuição da fixação biológica de nitrogênio para a cultura da cana-de-açúcar no Brasil. Seropédica: Embrapa Agrobiologia, 2001. 9 p. (Embrapa Agrobiologia. Documentos, 144).| Biblioteca(s): Embrapa Agrobiologia. |
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| 15. | | POLIDORO, J. C.; RESENDE, A. S. de; QUESADA, D. M.; XAVIER, R. P.; COELHO, C. H. M.; ALVES, B. J. R.; BODDEY, R. M.; URQUIAGA, S. Levantamento da contribuição da fixação biológica de nitrogênio para a cultura da cana-de-açúcar no Brasil. Seropédia: Embrapa Agrobiologia, 2001. 8 p. (Embrapa Agrobiologia. Documentos, 144) ISSN 1517-8498.| Biblioteca(s): Embrapa Tabuleiros Costeiros. |
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| 17. | | POLIDORO, J. C.; QUESADA, D. M.; RESENDE, A. S. de; COELHO, C. H. M.; XAVIER, R. P.; ALVES, B. J. R.; BODDEY, R. M.; URQUIAGA, S. Calibração de técnicas de análise de molibênio aplicadas para tecidos foliares de cana-de-açúcar oriundos de lavouras comerciais no Brasil. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 25.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 9.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 7.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 4., 2002, Rio de Janeiro. Agricultura: bases ecológicas para o desenvolvimento social e econômico sustentado: guia do congressista. Seropédica: UFRRJ: Embrapa Agrobiologia; Rio de Janeiro: Embrapa Solos, 2002. p. 32-33. Ref. 134. Fertbio 2002.| Biblioteca(s): Embrapa Solos. |
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| 18. | | XAVIER, R. P.; COELHO, C. H. M.; QUESADA, D. M.; LIMA, R. M.; RESENDE, A. S.; POLIDORO, J. C.; ALVES, B. J. R.; BODDEY, R. M.; URQUIAGA, S. Avaliação da eficiência da fixação biológica de nitrogênio em diferentes variedades de cana-de-açúcar. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 29., 2003, Ribeirão Preto. Resumos... Botucatu: SBCS, 2003. 4 p.| Biblioteca(s): Embrapa Agrobiologia. |
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| 19. | | COELHO, C. H. M.; MAGALHAES, P. C.; GAMA, E. E. G.; GUIMARAES, P. E.; GUIMARAES, C. T.; DURAES, F. O. M.; BOREM, A. Avaliação dos ciclos de seleção da variedade de milho BRS 4154 - Saracura para tolerância as condições de encharcamento do solo. In: CONGRESSO NACIONAL DE MILHO E SORGO, 25.; SIMPOSIO BRASILEIRO SOBRE A LAGARTA-DO-CARTUCHO, SPODOPTERA FRUGIPERDA, 1., 2004, Cuiabá, MT. Da agricultura familiar ao agronegócio: tecnologia, competitividade e sustentabilidade: [resumos expandidos]. Sete Lagoas: ABMS: Embrapa Milho e Sorgo; Cuiabá: Empaer, 2004. 1 CD-ROM.| Biblioteca(s): Embrapa Milho e Sorgo. |
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| Registros recuperados : 31 | |
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Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
13/07/2022 |
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Data da última atualização: |
13/07/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
REIS, C. O. dos; MAGALHAES, P. C.; AMBROSIO, A. dos S.; ALMEIDA, L. G.; CARVALHO, D. T.; SOUZA, T. C, de. |
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Afiliação: |
CAROLINE OLIVEIRA DOS REIS, Universidade Federal de Lavras; PAULO CESAR MAGALHAES, CNPMS; ALEXANDRA DOS SANTOS AMBRÓSIO, Universidade Federal de Alfenas; LORENA GABRIELA ALMEIDA, Universidade Federal de Lavras; DIOGO TEIXEIRA CARVALHO, Universidade Federal de Alfenas; THIAGO CORREA DE SOUZA, Universidade Federal de Alfenas. |
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Título: |
Do chitosan and its derivatives have the same protective effect on drought-contrasting maize genotypes? An analysis of physiological and production processes. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
Australian Journal of Crop Science, v. 16, n. 2, p. 208-215, 2022. |
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Idioma: |
Português |
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Conteúdo: |
Water stress is among the most severe abiotic stress factors for maize production. The application of chitosan causes various responses in plants, as a function of its structure and concentration. Therefore, chemical modifications were proposed in this study to enhance the biological effects on plants. Hybrid maize plants with drought-contrasting characteristics, were subjected to water deficit and spraying with chitosan (CHI) and semi-synthesized chitosan derivatives, N‑Succinyl (SUC) and N,O‑Dicarboxymethyl (MCA). The obtained data show that the application of CHI and its derivatives (0.5 mg.plant-1 ) led to an increase in production for the two evaluated hybrids in comparison with the control under stress. Regarding leaf gas exchange, over the stress period, it was observed that the application of the MCA derivative yielded greater Pn than the other treatments in plants subjected to drought, in both hybrids. In the evaluation of chlorophyll content, there was an increase in this content through the application of CHI and its derivatives for both maize hybrids under study. With water recovery in plants, the water potential (Ψmd) of those treated with chitosan derivatives was greater than that of the irrigated control plants. In the quantification of proline concentration, higher values were observed in plants treated with MCA derivatives for the drought-sensitive hybrid. Chitosan derivatives, SUC and MCA, were responsible for higher starch concentrations in both maize hybrids. Evaluating the morphological characteristics of roots, the drought-tolerant hybrid showed higher means for all parameters evaluated when subjected to drought, and MCA was responsible for longer root length and greater mean root diameter. The results support the potential use of chitosan and its derivatives to increase tolerance to water deficit in maize. MenosWater stress is among the most severe abiotic stress factors for maize production. The application of chitosan causes various responses in plants, as a function of its structure and concentration. Therefore, chemical modifications were proposed in this study to enhance the biological effects on plants. Hybrid maize plants with drought-contrasting characteristics, were subjected to water deficit and spraying with chitosan (CHI) and semi-synthesized chitosan derivatives, N‑Succinyl (SUC) and N,O‑Dicarboxymethyl (MCA). The obtained data show that the application of CHI and its derivatives (0.5 mg.plant-1 ) led to an increase in production for the two evaluated hybrids in comparison with the control under stress. Regarding leaf gas exchange, over the stress period, it was observed that the application of the MCA derivative yielded greater Pn than the other treatments in plants subjected to drought, in both hybrids. In the evaluation of chlorophyll content, there was an increase in this content through the application of CHI and its derivatives for both maize hybrids under study. With water recovery in plants, the water potential (Ψmd) of those treated with chitosan derivatives was greater than that of the irrigated control plants. In the quantification of proline concentration, higher values were observed in plants treated with MCA derivatives for the drought-sensitive hybrid. Chitosan derivatives, SUC and MCA, were responsible for higher starch concentrations i... Mostrar Tudo |
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Palavras-Chave: |
Quitosana. |
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Thesagro: |
Milho; Seca. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1144687/1/Do-chitosan-and-its-derivatives-have-the-same-protective-effect.pdf
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Marc: |
LEADER 02583naa a2200217 a 4500
001 2144687
005 2022-07-13
008 2022 bl uuuu u00u1 u #d
100 1 $aREIS, C. O. dos
245 $aDo chitosan and its derivatives have the same protective effect on drought-contrasting maize genotypes? An analysis of physiological and production processes.$h[electronic resource]
260 $c2022
520 $aWater stress is among the most severe abiotic stress factors for maize production. The application of chitosan causes various responses in plants, as a function of its structure and concentration. Therefore, chemical modifications were proposed in this study to enhance the biological effects on plants. Hybrid maize plants with drought-contrasting characteristics, were subjected to water deficit and spraying with chitosan (CHI) and semi-synthesized chitosan derivatives, N‑Succinyl (SUC) and N,O‑Dicarboxymethyl (MCA). The obtained data show that the application of CHI and its derivatives (0.5 mg.plant-1 ) led to an increase in production for the two evaluated hybrids in comparison with the control under stress. Regarding leaf gas exchange, over the stress period, it was observed that the application of the MCA derivative yielded greater Pn than the other treatments in plants subjected to drought, in both hybrids. In the evaluation of chlorophyll content, there was an increase in this content through the application of CHI and its derivatives for both maize hybrids under study. With water recovery in plants, the water potential (Ψmd) of those treated with chitosan derivatives was greater than that of the irrigated control plants. In the quantification of proline concentration, higher values were observed in plants treated with MCA derivatives for the drought-sensitive hybrid. Chitosan derivatives, SUC and MCA, were responsible for higher starch concentrations in both maize hybrids. Evaluating the morphological characteristics of roots, the drought-tolerant hybrid showed higher means for all parameters evaluated when subjected to drought, and MCA was responsible for longer root length and greater mean root diameter. The results support the potential use of chitosan and its derivatives to increase tolerance to water deficit in maize.
650 $aMilho
650 $aSeca
653 $aQuitosana
700 1 $aMAGALHAES, P. C.
700 1 $aAMBROSIO, A. dos S.
700 1 $aALMEIDA, L. G.
700 1 $aCARVALHO, D. T.
700 1 $aSOUZA, T. C, de
773 $tAustralian Journal of Crop Science$gv. 16, n. 2, p. 208-215, 2022.
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