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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
10/11/2021 |
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Data da última atualização: |
10/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
OLIVEIRA, I. V. de; AGUIAR, R. O.; LIMA, C. C.; CUNHA, R. L.; CRUZ, W. P. da; SILVA, C. R. da; SILVA, V. F. A.; SILVA, J. P. da; CARVALHO, F. I. M.; MARTINS, L. H. da S.; SILVA, P. A.; PINHEIRO, H. A. |
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Afiliação: |
IGOR V. DE OLIVEIRA, Unifesspa; RODRIGO O. AGUIAR, UFRA; CLENES C. LIMA, UFRA; ROBERTO LISBOA CUNHA, CPATU; WILTON P. DA CRUZ, UFRA; CLAUDETE R. DA SILVA, UFRA; VICENTE F. A. SILVA, UFRA; JOSIANE P. DA SILVA, UFRA; FÁBIO I. M. CARVALHO, UFRA; LUIZA H. DA S. MARTINS, UFRA; PRISCILLA A. SILVA, UFRA; HUGO A. PINHEIRO, UFRA. |
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Título: |
Diurnal variations in water potential and gas exchanges in two-hybrid oil palms under water deficit. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Journal of Agricultural Science, v. 12, n. 12, p. 75-88, 2020. |
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DOI: |
https://doi.org/10.5539/jas.v12n12p75 |
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Idioma: |
Inglês |
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Conteúdo: |
Oil palm (Elaeis guineensis Jacq.) presents considerable sensitivity to water deficit and the identification of stress-tolerant hybrids is a strategy to improve the adaptation and growth of plants throughout the annual dry seasons. For this reason, we examined possible differences in water deficit tolerance in two oil palm hybrids (BRS Manicoré and BRS C 2501) subjected to moderate drought conditions. The comparison of hybrids was performed using diurnal curves of leaf water potential (Ψw), gas exchanges, and biochemical variables, such as chloroplast pigments and enzymes analysis. The experiment was carried out in a completely randomized design, in a 2 × 2 × 13 factorial scheme resulting from the combination of two hybrids versus two water regimes, and thirteen evaluation schedules. Regardless of the water regime, the maximum average value of net assimilation rates of CO2 (A), stomatal conductance to water vapor (gs), and water use efficiency (A/E) in both hybrids was registered at 8 h. Peaks of A, gs, and A/E coincided with milder climatic conditions during the morning. While decreases in these variables were observed with increases in air temperature and vapor pressure deficit between leaf and atmosphere throughout the day. The water deficit induced significant increases in the total carotenoids levels of BRS C 2501 (62%) and BRS Manicoré (220%), while chlorophyll a content was significantly reduced only in BRS C 2501 (36%) and chlorophyll b only in Manicoré (34%). It also mediated significant increases in the activities of glycolate and catalase oxidase in both hybrids; however, such increases were more expressive in BRS C 2501 than in BRS Manicoré. In conclusion, it can be inferred that BRS Manicoré presents more favorable physiological and biochemical responses to the water deficit imposed compared to BRS C 2501. MenosOil palm (Elaeis guineensis Jacq.) presents considerable sensitivity to water deficit and the identification of stress-tolerant hybrids is a strategy to improve the adaptation and growth of plants throughout the annual dry seasons. For this reason, we examined possible differences in water deficit tolerance in two oil palm hybrids (BRS Manicoré and BRS C 2501) subjected to moderate drought conditions. The comparison of hybrids was performed using diurnal curves of leaf water potential (Ψw), gas exchanges, and biochemical variables, such as chloroplast pigments and enzymes analysis. The experiment was carried out in a completely randomized design, in a 2 × 2 × 13 factorial scheme resulting from the combination of two hybrids versus two water regimes, and thirteen evaluation schedules. Regardless of the water regime, the maximum average value of net assimilation rates of CO2 (A), stomatal conductance to water vapor (gs), and water use efficiency (A/E) in both hybrids was registered at 8 h. Peaks of A, gs, and A/E coincided with milder climatic conditions during the morning. While decreases in these variables were observed with increases in air temperature and vapor pressure deficit between leaf and atmosphere throughout the day. The water deficit induced significant increases in the total carotenoids levels of BRS C 2501 (62%) and BRS Manicoré (220%), while chlorophyll a content was significantly reduced only in BRS C 2501 (36%) and chlorophyll b only in Manicoré (34%). I... Mostrar Tudo |
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Thesagro: |
Catalase; Clorofila; Dendê; Elaeis Guineensis; Fotossíntese; Potencial Hídrico. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02855naa a2200337 a 4500
001 2135989
005 2021-11-10
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.5539/jas.v12n12p75$2DOI
100 1 $aOLIVEIRA, I. V. de
245 $aDiurnal variations in water potential and gas exchanges in two-hybrid oil palms under water deficit.$h[electronic resource]
260 $c2020
520 $aOil palm (Elaeis guineensis Jacq.) presents considerable sensitivity to water deficit and the identification of stress-tolerant hybrids is a strategy to improve the adaptation and growth of plants throughout the annual dry seasons. For this reason, we examined possible differences in water deficit tolerance in two oil palm hybrids (BRS Manicoré and BRS C 2501) subjected to moderate drought conditions. The comparison of hybrids was performed using diurnal curves of leaf water potential (Ψw), gas exchanges, and biochemical variables, such as chloroplast pigments and enzymes analysis. The experiment was carried out in a completely randomized design, in a 2 × 2 × 13 factorial scheme resulting from the combination of two hybrids versus two water regimes, and thirteen evaluation schedules. Regardless of the water regime, the maximum average value of net assimilation rates of CO2 (A), stomatal conductance to water vapor (gs), and water use efficiency (A/E) in both hybrids was registered at 8 h. Peaks of A, gs, and A/E coincided with milder climatic conditions during the morning. While decreases in these variables were observed with increases in air temperature and vapor pressure deficit between leaf and atmosphere throughout the day. The water deficit induced significant increases in the total carotenoids levels of BRS C 2501 (62%) and BRS Manicoré (220%), while chlorophyll a content was significantly reduced only in BRS C 2501 (36%) and chlorophyll b only in Manicoré (34%). It also mediated significant increases in the activities of glycolate and catalase oxidase in both hybrids; however, such increases were more expressive in BRS C 2501 than in BRS Manicoré. In conclusion, it can be inferred that BRS Manicoré presents more favorable physiological and biochemical responses to the water deficit imposed compared to BRS C 2501.
650 $aCatalase
650 $aClorofila
650 $aDendê
650 $aElaeis Guineensis
650 $aFotossíntese
650 $aPotencial Hídrico
700 1 $aAGUIAR, R. O.
700 1 $aLIMA, C. C.
700 1 $aCUNHA, R. L.
700 1 $aCRUZ, W. P. da
700 1 $aSILVA, C. R. da
700 1 $aSILVA, V. F. A.
700 1 $aSILVA, J. P. da
700 1 $aCARVALHO, F. I. M.
700 1 $aMARTINS, L. H. da S.
700 1 $aSILVA, P. A.
700 1 $aPINHEIRO, H. A.
773 $tJournal of Agricultural Science$gv. 12, n. 12, p. 75-88, 2020.
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Registro original: |
Embrapa Amazônia Oriental (CPATU) |
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Biblioteca |
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| Registros recuperados : 35 | |
| 22. |  | MONTEIRO, M. G. T.; SOUZA, J. M. de; LEMOS, O. F. de; GOMES JUNIOR, R. A.; PINHEIRO, H. A.; PIRES, G. T. Meio de cultura para indução de calos embriogênicos em palma de óleo. Revista RG News, v. 4, n. 3, p. 565, 2018. Edição especial dos Anais do 5º Congresso Brasileiro de Recursos Genéticos, Fortaleza, nov. 2018.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 23. | | SILVA, G. B.; SOUSA, T. B.; SOUZA, A. C. A.; FILIPPI, M. C. C.; CORTES, M. V. B.; PINHEIRO, H. A. Physiological changes of rice plants induced by plant growth-promoting microorganisms and silicon fertilization. In: INTERNATIONAL PLANT PROTECTION CONGRESS, 18., 2015, Berlin. Abstracts. Berlin: IPPC, 2015. p. 499.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 24. | | CORDEIRO, Y. E. M.; PINHEIRO, H. A.; SANTOS FILHO, B. G. dos; CORREA, S. S.; SILVA, J. R. R. e; DIAS-FILHO, M. B. Physiological and morphological responses of young mahogany (Swietenia macrophylla King) plants to drought. Forest Ecology and Management, v. 258, n. 7, p. 1449-1455, Sep. 2009.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 26. | | MONTEIRO, M. G. T.; SOUZA, J. M. de M.; PINHEIRO, H. A.; LEMOS, O. F. de; OLIVEIRA, R. P. de; BOÁS, B. B.; SOUZA, F. I. B. de. In vitro induction of callus and flowers in immature oil palm inflorescences. Journal of Agricultural Studies, v. 8, n. 4, p. 712-725, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 27. | | COSME, V. dos S.; SILVA, P. A.; RODRIGUES, K. C. B.; BASTOS, A. J. R.; CUNHA, R. L.; PINHEIRO, H. A. Respostas fisiológicas de dois híbridos de palma de óleo ao déficit hídrico prolongado e subsequente recuperação. In: SEMINÁRIO ANUAL DE INICIAÇÃO CIENTÍFICA DA UFRA, 13., 2015, Belém, PA. Anais. Belém, PA: Universidade Federal Rural da Amazônia, 2015.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 28. | | BUENO, A. C. S. O.; CASTRO, G. L. S.; SILVA JUNIOR, D. D.; PINHEIRO, H. A.; FILIPPI, M. C. C.; SILVA, G. B. Response of photosynthesis and chlorophyll a fluorescence in leaf scald-infected rice under influence of rhizobacteria and silicon fertilizer. Plant Pathology, v. 66, n. 9, p. 1487-1495, Dec. 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Arroz e Feijão. |
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| 29. | | RODRIGUES, K. C. B.; SILVA, P. A.; COSME, V. dos S.; BASTOS, A. J. R.; CUNHA, R. L.; PINHEIRO, H. A. Trocas gasosas em dois híbridos de palma de óleo submetidos ao déficit hídrico progressivo. In: SEMINÁRIO ANUAL DE INICIAÇÃO CIENTÍFICA DA UFRA, 12., 2014, Belém, PA. Anais. Belém, PA: Universidade Federal Rural da Amazônia, 2014.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 30. | | CASTRO, G. L. S. de; LEMOS, O. F. de; TREMACOLDI, C. R.; MORAES, F. K. C.; SANTOS, L. R. R. dos; PINHEIRO, H. A. Susceptibility of in vitro black pepper plant to the filtrate from a Fusarium solani f. sp. piperis culture. Plant Cell Tiss Organ Cult, v. 127, n. 1, p. 263-268, 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 31. | | CASTRO, G. L. S. de; LEMOS, O. F. de; TREMACOLDI, C. R.; MORAES, F. K. C.; SANTOS, L. R. R. dos; PINHEIRO, H. A. Suscetibilidade das raízes de pimenteira-do-reino in vitro às fitotoxinas de Fusarium solani f. sp. piperis. In: SEMINÁRIO ANUAL DE INICIAÇÃO CIENTÍFICA DA UFRA, 12., 2014, Belém, PA. Anais. Belém, PA: Universidade Federal Rural da Amazônia, 2014.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 32. | | BORGES, A. C. M. R.; KATO, O. R.; PINHEIRO, H. A.; SHIMIZU, M. K.; RANGEL-VASCONCELOS, L. G. T.; OLIVEIRA JUNIOR, M. C. M. de; AZEVEDO, C. M. B. C. de. Produção de biomassa de milho em sistemas com manejo de capoeira enriquecida. In: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 8., 2011, Belém, PA. Anais... Belém, PA: SBSAF: Embrapa Amazônia Oriental: UFRA: CEPLAC: EMATER: ICRAF, 2011. 1 CD-ROM. Editores técnicos: Roberto Porro, Milton Kanashiro, Maria do Socorro Gonçalves Ferreira, Leila Sobral Sampaio e Gladys Ferreira de Sousa.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 33. | | SILVA, P. A.; COSME, V. S.; RORIGUES, K. C. B.; DETMANN, K. S. C.; LEÃO, F. M.; CUNHA, R. L.; BUSELLI, R. A. F.; DAMATTA, F. M.; PINHEIRO, H. A. Drought tolerance in two oil palm hybrids as related to adjustments in carbon metabolism and vegetative growth. Acta Physiologiae Plantarum, v. 39, n. 2, p. 1-12, 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 34. | | SILVA, P. A.; OLIVEIRA, I. V.; RODRIGUES, K. C. B.; COSME, V. S.; BASTOS, A. J. R.; DETMANN, K. S. C.; CUNHA, R. L.; FESTUCCI-BUSELLI, R. A.; DaMATTA, F. M.; PINHEIRO, H. A. Leaf gas exchange and multiple enzymatic and non-enzymatic antioxidant strategies related to drought tolerance in two oil palm hybrids. Trees, v. 30, n. 1, p. 203-214, Feb. 2016.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 35. | | OLIVEIRA, I. V. de; AGUIAR, R. O.; LIMA, C. C.; CUNHA, R. L.; CRUZ, W. P. da; SILVA, C. R. da; SILVA, V. F. A.; SILVA, J. P. da; CARVALHO, F. I. M.; MARTINS, L. H. da S.; SILVA, P. A.; PINHEIRO, H. A. Diurnal variations in water potential and gas exchanges in two-hybrid oil palms under water deficit. Journal of Agricultural Science, v. 12, n. 12, p. 75-88, 2020.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Amazônia Oriental. |
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| Registros recuperados : 35 | |
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| Nenhum registro encontrado para a expressão de busca informada. |
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