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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: |
22/02/2010 |
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Data da última atualização: |
16/11/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CORDEIRO, Y. E. M.; PINHEIRO, H. A.; SANTOS FILHO, B. G. dos; CORREA, S. S.; SILVA, J. R. R. e; DIAS-FILHO, M. B. |
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Afiliação: |
UFRA; UFRA; UFRA; UFRA; UFRA; MOACYR BERNARDINO DIAS FILHO, CPATU. |
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Título: |
Physiological and morphological responses of young mahogany (Swietenia macrophylla King) plants to drought. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Forest Ecology and Management, v. 258, n. 7, p. 1449-1455, Sep. 2009. |
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DOI: |
10.1016/j.foreco.2009.06.054 |
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Idioma: |
Inglês |
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Conteúdo: |
Young mahogany (Swietenia macrophylla King) plants were grown under either well-watered (pre-dawn leaf water potential, ?pd, ca. ?0.40 MPa) or drought (?pd, ca. ?3.52 MPa) conditions to examine some physiological strategies that allow the maintenance of leaf turgor. In well-watered plants, stomatal conductance (gs) was nearly constant (440 mmol m?2 s?1) between 7:00 and 13:00 h. This was accomplished by significant increases in transpiration (E) and apparent total hydraulic conductance (KT), in which averages were higher at 13:00 h. From 13:00 to 17:00 h, gs, E, and KT decreased sharply, reaching their lower values at 17:00 h. In these plants, significant increases in height (116%), stem diameter (50%) and leaf area (200%) were registered over the experimental period (20 days). Analyses of linear regression between gs or E and leaf-to-air vapor pressure deficit (?w) were not significant. In water-stressed plants, gs and E were higher at 7:00 h and lower from 9:00 to 17:00 h, while KT was higher in early morning (7:00 h) and in late afternoon (17:00 h) than between 9:00 and 15:00 h. Moreover, both gs and E decreased potentially (P < 0.001) with the diurnal increases on ?w. Drought also decreased leaf and leaflet numbers and reduced total leaf area, but had no effect on stem height and diameter. Leaf proline was higher (ca. 400%, between 13:00 and 15:00 h) in water-stressed plants, suggesting osmotic adjustment under drought. Twelve hours after resumption of irrigation, ?pd was similar (P > 0.05) between well-watered and drought-stressed plants, suggesting an ability of plants to recover turgor after stress cessation. Altogether, our data support the hypothesis that young mahogany plants have the ability to satisfactorily tolerate or postpone drought. MenosYoung mahogany (Swietenia macrophylla King) plants were grown under either well-watered (pre-dawn leaf water potential, ?pd, ca. ?0.40 MPa) or drought (?pd, ca. ?3.52 MPa) conditions to examine some physiological strategies that allow the maintenance of leaf turgor. In well-watered plants, stomatal conductance (gs) was nearly constant (440 mmol m?2 s?1) between 7:00 and 13:00 h. This was accomplished by significant increases in transpiration (E) and apparent total hydraulic conductance (KT), in which averages were higher at 13:00 h. From 13:00 to 17:00 h, gs, E, and KT decreased sharply, reaching their lower values at 17:00 h. In these plants, significant increases in height (116%), stem diameter (50%) and leaf area (200%) were registered over the experimental period (20 days). Analyses of linear regression between gs or E and leaf-to-air vapor pressure deficit (?w) were not significant. In water-stressed plants, gs and E were higher at 7:00 h and lower from 9:00 to 17:00 h, while KT was higher in early morning (7:00 h) and in late afternoon (17:00 h) than between 9:00 and 15:00 h. Moreover, both gs and E decreased potentially (P < 0.001) with the diurnal increases on ?w. Drought also decreased leaf and leaflet numbers and reduced total leaf area, but had no effect on stem height and diameter. Leaf proline was higher (ca. 400%, between 13:00 and 15:00 h) in water-stressed plants, suggesting osmotic adjustment under drought. Twelve hours after resumption of irrigation, ?pd wa... Mostrar Tudo |
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Palavras-Chave: |
Transpiração. |
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Thesagro: |
Água; Mogno. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02506naa a2200229 a 4500
001 1658411
005 2022-11-16
008 2009 bl uuuu u00u1 u #d
024 7 $a10.1016/j.foreco.2009.06.054$2DOI
100 1 $aCORDEIRO, Y. E. M.
245 $aPhysiological and morphological responses of young mahogany (Swietenia macrophylla King) plants to drought.$h[electronic resource]
260 $c2009
520 $aYoung mahogany (Swietenia macrophylla King) plants were grown under either well-watered (pre-dawn leaf water potential, ?pd, ca. ?0.40 MPa) or drought (?pd, ca. ?3.52 MPa) conditions to examine some physiological strategies that allow the maintenance of leaf turgor. In well-watered plants, stomatal conductance (gs) was nearly constant (440 mmol m?2 s?1) between 7:00 and 13:00 h. This was accomplished by significant increases in transpiration (E) and apparent total hydraulic conductance (KT), in which averages were higher at 13:00 h. From 13:00 to 17:00 h, gs, E, and KT decreased sharply, reaching their lower values at 17:00 h. In these plants, significant increases in height (116%), stem diameter (50%) and leaf area (200%) were registered over the experimental period (20 days). Analyses of linear regression between gs or E and leaf-to-air vapor pressure deficit (?w) were not significant. In water-stressed plants, gs and E were higher at 7:00 h and lower from 9:00 to 17:00 h, while KT was higher in early morning (7:00 h) and in late afternoon (17:00 h) than between 9:00 and 15:00 h. Moreover, both gs and E decreased potentially (P < 0.001) with the diurnal increases on ?w. Drought also decreased leaf and leaflet numbers and reduced total leaf area, but had no effect on stem height and diameter. Leaf proline was higher (ca. 400%, between 13:00 and 15:00 h) in water-stressed plants, suggesting osmotic adjustment under drought. Twelve hours after resumption of irrigation, ?pd was similar (P > 0.05) between well-watered and drought-stressed plants, suggesting an ability of plants to recover turgor after stress cessation. Altogether, our data support the hypothesis that young mahogany plants have the ability to satisfactorily tolerate or postpone drought.
650 $aÁgua
650 $aMogno
653 $aTranspiração
700 1 $aPINHEIRO, H. A.
700 1 $aSANTOS FILHO, B. G. dos
700 1 $aCORREA, S. S.
700 1 $aSILVA, J. R. R. e
700 1 $aDIAS-FILHO, M. B.
773 $tForest Ecology and Management$gv. 258, n. 7, p. 1449-1455, Sep. 2009.
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Embrapa Amazônia Oriental (CPATU) |
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| Registros recuperados : 29 | |
| 8. |  | CAVERZAN, A.; CASASSOLA, A.; BRAMMER, S. P.; CHAVES, M. S. Estudo funcional de genes envolvidos na detoxificação celular em resposta à ferrugem da folha em trigo. In: MOSTRA DE INICIAÇÃO CIENTÍFICA, 10., MOSTRA DE PÓS-GRADUAÇÃO DA EMBRAPA TRIGO, 7., 2015, Passo Fundo. Resumos... Brasília, DF: Embrapa, 2015. Pós-Graduação. p. 43.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| 9. | | CASASSOLA, A.; TORRES, G. A. M.; TURCHETTO, C.; CONSOLI, L. Caracterização de isolados de Magnaporthe oryzae de trigo. In: SEMANA DO CONHECIMENTO, 2.; MOSTRA DE INICIAÇÃO CIENTÍFICA, 25., 2015, Passo Fundo. Integrando práticas e transversalizando saberes: [anaIs]. Passo Fundo: Universidade de Passo Fundo, 2015. Ciências agrárias, 4 p.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| 10. | | CASASSOLA, A.; TURCHETTO, C.; TORRES, G. A. M.; CONSOLI, L. Variabilidade de virulência de diferentes isolados de Pyricularia oryzae em plantas jovens de trigo. In: MOSTRA DE INICIAÇÃO CIENTÍFICA, 10., MOSTRA DE PÓS-GRADUAÇÃO DA EMBRAPA TRIGO, 7., 2015, Passo Fundo. Resumos... Brasília, DF: Embrapa, 2015. Graduação. p. 38.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| 11. | | CASASSOLA, A.; TORRES, G. A. M.; TURCHETTO, C.; CONSOLI, L. Variação de agressividade entre isolados de Magnaporthe oryzae de trigo no Brasil. In: REUNIÃO DA COMISSÃO BRASILEIRA DE PESQUISA DE TRIGO E TRITICALE, 8.; SEMINÁRIO TÉCNICO DO TRIGO, 9., 2014, Canela; REUNIÃO DA COMISSÃO BRASILEIRA DE PESQUISA DE TRIGO E TRITICALE, 9.; SEMINÁRIO TÉCNICO DO TRIGO, 10., 2015, Passo Fundo. Anais... Passo Fundo: Biotrigo Genética: Embrapa Trigo, 2015. 2015-Fitopatologia-Trabalho 137. 1 CD-ROM.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| 12. | | CASASSOLA, A.; BRAMMER, S. P.; CHAVES, M. S.; VOLPATO, V.; MORAS, A. Identificação cromossômica da translocação 1BL. 1RS, que confere resistência à ferrugem do colmo do trigo, por meio da hibridização genômica in situ. In: MOSTRA DE PÓS-GRADUAÇÃO DA EMBRAPA TRIGO, 3., 2010, Passo Fundo. Resumos... Passo Fundo: Embrapa Trigo, 2010. 1 p. html. (Embrapa Trigo. Documentos online, 124).| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| 13. | | CAMILOTTI, G. A.; CASASSOLA, A.; TORRES, G. A. M.; SANTANA, F. M.; CONSOLI, L. Incidência de brusone de trigo em viveiro conduzido em Passo Fundo no ano de 2014. In: MOSTRA DE INICIAÇÃO CIENTÍFICA, 11.; MOSTRA DE PÓS-GRADUAÇÃO DA EMBRAPA TRIGO, 8., 2016, Passo Fundo. Resumos... Brasília, DF: Embrapa, 2016. p. 34.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| 14. | | TONIAZZO, C.; BRAMMER, S. P.; MINELLA, E.; CAVERZAN, A.; WIETHÖLTER, P.; CASASSOLA, A.; GRANDO, M. F. Malting quality and genetic diversity in brazilian elite barley germplasm. International Journal of Current Research, v. 9, n. 6, p. 52352-52357, June 2017.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 3 |
| Biblioteca(s): Embrapa Trigo. |
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| 15. | | CASASSOLA, A.; BRAMMER, S. P.; CHAVES, M. S.; MARTINELLI, J. A.; STEFANATO, F.; BOYD, L. A. Changes in gene expression profiles as they relate to the adult plant leaf rust resistance in the wheat cv. Toropi. Physiological and Molecular Plant Pathology, Orlando, v. 89, p. 49-54, Jan. 2015.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Trigo. |
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| 16. | | CASASSOLA, A.; BRAMMER, S. P.; CHAVES, M. S.; WIETHÖLTER, P.; CAIERAO, E. Parental selection of wheat lines based on phenotypic characterization and genetic diversity. Crop Breeding and Applied Biotechnology, Londrina, v. 13, n. 1, p. 49-58, 2013.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Trigo. |
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| 17. | | COSTA, S. F. da; CAMILOTTI, G. A.; CASASSOLA, A.; FÁVERO, L.; TORRES, G. A. M.; SANTANA, F. M.; CONSOLI, L. Avaliação de genótipos de trigo quanto à reação à brusone em Passo Fundo, RS. In: MOSTRA DE INICIAÇÃO CIENTÍFICA, 10., MOSTRA DE PÓS-GRADUAÇÃO DA EMBRAPA TRIGO, 7., 2015, Passo Fundo. Resumos... Brasília, DF: Embrapa, 2015. Graduação. p. 22.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| 18. | | BRAMMER, S. P.; CARGNIN, A.; KIIHL, T. A. M.; RESENDE, T. T. de; CASASSOLA, A.; CECCON, C. C. Morpho-agronomic, cytogenetic and molecular characterization of synthetic wheat accessions as a potential germplasm for plant breeding. Journal of Agricultural Sciences Research, v. 1, n. 1, p. 1-13, 2021.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
| Biblioteca(s): Embrapa Gado de Leite; Embrapa Trigo; Embrapa Uva e Vinho. |
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| 19. | | FERREIRA, J. R.; DEUNER, C. C.; TORRES, G. A. M.; CONSOLI, L.; CASASSOLA, A.; FERNANDES, J. M. C. Fenotipagem fina da resistência de trigo a Magnaporthe oryzae. In: MOSTRA DE INICIAÇÃO CIENTÍFICA, 11.; MOSTRA DE PÓS-GRADUAÇÃO DA EMBRAPA TRIGO, 8., 2016, Passo Fundo. Resumos... Brasília, DF: Embrapa, 2016. p. 51.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| 20. | | FERREIRA, J. R.; DEUNER, C. C.; TORRES, G. A. M.; CONSOLI, L.; CASASSOLA, A.; FERNANDES, J. M. C. Fine phenotyping unlocks wheat mechanisms of reaction to Magnaporthe oryzae. In: INTERNATIONAL SYMPOSIUM ON FUSARIUM HEAD BLIGHT, 5.; INTERNATIONAL WORKSHOP ON WHEAT BLAST, 2., 2016, Florianópolis. Book of abstracts... Passo Fundo: Ed. Universidade de Passo Fundo: Embrapa Trigo; Viçosa, MG: Universidade Federal de Viçosa, 2016. p. 135, abst. P71. 2nd International Workshop on Wheat Blast.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
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| Registros recuperados : 29 | |
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