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| 2. |  | MONTEIRO, E. M. M.; BRASIL, E. C.; LOURENÇO JÚNIOR, J. de B.; COSTA, N. A. da; OLIVEIRA, C. do S. B. de; COSTA, E. de J. F. Dinâmica da produção da forragem Brachiaria humidicola em função da aplicação de produtos orgânicos e fósforo. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios. Fortaleza: SBCS, 2009. 1 CD-ROM.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 3. | | MONTEIRO, E. M. M.; BRASIL, E. C.; LOURENÇO JÚNIOR, J. de B.; COSTA, N. A. da; OLIVEIRA, C. do S. B. de; COSTA, E. de J. F. Influência da aplicação de adubos orgânicos e fósforo sobre a produtividade do Panicum maximum cv. Mombaça. In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 32., 2009, Fortaleza. O solo e a produção de bioenergia: perspectivas e desafios. Fortaleza: SBCS, 2009. 1 CD-ROM.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 4. | | MONTEIRO, E. M. M.; BRASIL, E. C.; LOURENÇO JUNIOR, J. de B.; OLIVEIRA, C. do S. B. de; COSTA, E. de J. F. Avaliação da composição bromatológica da forrageira Brachiaria humidicola adubada com dois resíduos orgânicos oriundos da siderurgia e criação avícola. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE SISTEMAS DE PRODUÇÃO, 8., 2010, São Luís. Agricultura familiar: crise alimentar e mudanças climáticas globais: anais. São Luís, MA: UEMA: Embrapa, 2010.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 5. | | MONTEIRO, E. M. M.; BRASIL, E. C.; LOURENÇO JUNIOR, J. de B.; OLIVEIRA, C. do S. B. de; COSTA, E. de J. F. Composição química da forrageira Panicum maximum cv. mombaça adubada com fertilizantes orgânicos oriundos da siderurgia e criação avícola. In: CONGRESSO DA SOCIEDADE BRASILEIRA DE SISTEMAS DE PRODUÇÃO, 8., 2010, São Luís. Agricultura familiar: crise alimentar e mudanças climáticas globais: anais. São Luís, MA: UEMA: Embrapa, 2010.| Biblioteca(s): Embrapa Amazônia Oriental. |
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| 6. | | BRASIL, E. C.; OLIVEIRA, C. do S. B. de; LOURENÇO JUNIOR, J. de B.; MONTEIRO, E. M. M.; COSTA, E. de J. F.; ASSUNÇÃO, E. A.; FERREIRA, V. T. G. Influência da aplicação combinada de pó de balão com nitrogênio e fósforo sobre a produção de biomassa aérea de capim mombaça. In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 29.; REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 13.; SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 11.; REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 8., 2010, Guarapari. Fontes de nutrientes e produção agrícola: modelando o futuro: anais. Viçosa, MG: SBCS, 2010. FERTBIO 2010.| Biblioteca(s): Embrapa Amazônia Oriental. |
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Registro Completo
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Biblioteca(s): |
Embrapa Soja. |
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Data corrente: |
03/03/2006 |
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Data da última atualização: |
03/03/2006 |
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Autoria: |
TOBITA, S.; NASTASA, V.; SENOO, S.; NEPOMUCENO, A. L.; FARIAS, J. R. B.; NEUMAIER, N. |
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Título: |
Water use efficiency and carbon isotope discrimination in Brazilian soybean cultivars under water stress. |
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Ano de publicação: |
2005 |
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Fonte/Imprenta: |
In: INTERNATIONAL CONFERENCE ON INTEGRATED APPROACHES TO SUSTAIN AND IMPROVE PLANT PRODUCTION UNDER DROUGHT STRESS, 2., 2005, Rome. InterDrought - II: final program and abstract book. Rome, 2005. Não paginado. |
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Idioma: |
Inglês |
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Notas: |
Resumo: P 5.85. |
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Conteúdo: |
Water use efficiency (WUE), or transpiration efficiency, is well known to closely relate with dry matter production under drought stress in many plants and crops. It can be applicable as a varietal screening criterion for drought tolerance, but the direct measurement of WUE in: field is not possible. In C3 plants, the relationship of WUE and carbon isotope discrimination (CID) has been empiricalIy documented and physiologicalIy elucidated. A pot experiment was conducted in Tsukuba, Japan, in summer of 2004, with precise and regular measurement of the amount of supplied and transpiring water for the estimation of WUE of soybean (Glycine max L. [Merr.]) cultivars from Brazil under well-watered and water-stressed conditions, as welI as instantaneous WUE (WUEi) in several occasions. Leaf samples were colIected of the youngest fulIy expanded trifoliate and analyzed for Ôl3C values by an IRMS, which were then converted to CID with use of -8.00% as the ÔI3C of the air. Under well-watered condition, WUE was ranged from 2.7 to 3.3 g
L-1 and significantly higher in Conquista (drought-tolerant), as compared with BRS-183 (tolerant), BRS-185 and Aurora. WUE was apparently increased to be around 3.4 g L-1 in alI cultivars by water stress from the beginning of flowering for 25 days. of welI-watered Conquista leaves was significantly lower (17.7%) than other cultivars (around 19%). Under the water stress, decreased to be from 17.2 to 17.9% for alI cultivars. There was a negative linear correlation (r2 = 0.929) between WUE and so that it would be reasonable to estimate WUE in field-grown soybeans with the measurement of for its application to drought screening. MenosWater use efficiency (WUE), or transpiration efficiency, is well known to closely relate with dry matter production under drought stress in many plants and crops. It can be applicable as a varietal screening criterion for drought tolerance, but the direct measurement of WUE in: field is not possible. In C3 plants, the relationship of WUE and carbon isotope discrimination (CID) has been empiricalIy documented and physiologicalIy elucidated. A pot experiment was conducted in Tsukuba, Japan, in summer of 2004, with precise and regular measurement of the amount of supplied and transpiring water for the estimation of WUE of soybean (Glycine max L. [Merr.]) cultivars from Brazil under well-watered and water-stressed conditions, as welI as instantaneous WUE (WUEi) in several occasions. Leaf samples were colIected of the youngest fulIy expanded trifoliate and analyzed for Ôl3C values by an IRMS, which were then converted to CID with use of -8.00% as the ÔI3C of the air. Under well-watered condition, WUE was ranged from 2.7 to 3.3 g
L-1 and significantly higher in Conquista (drought-tolerant), as compared with BRS-183 (tolerant), BRS-185 and Aurora. WUE was apparently increased to be around 3.4 g L-1 in alI cultivars by water stress from the beginning of flowering for 25 days. of welI-watered Conquista leaves was significantly lower (17.7%) than other cultivars (around 19%). Under the water stress, decreased to be from 17.2 to 17.9% for alI cultivars. There was a negative linear cor... Mostrar Tudo |
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Categoria do assunto: |
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Marc: |
LEADER 02395naa a2200193 a 4500
001 1468967
005 2006-03-03
008 2005 bl --- 0-- u #d
100 1 $aTOBITA, S.
245 $aWater use efficiency and carbon isotope discrimination in Brazilian soybean cultivars under water stress.
260 $c2005
500 $aResumo: P 5.85.
520 $aWater use efficiency (WUE), or transpiration efficiency, is well known to closely relate with dry matter production under drought stress in many plants and crops. It can be applicable as a varietal screening criterion for drought tolerance, but the direct measurement of WUE in: field is not possible. In C3 plants, the relationship of WUE and carbon isotope discrimination (CID) has been empiricalIy documented and physiologicalIy elucidated. A pot experiment was conducted in Tsukuba, Japan, in summer of 2004, with precise and regular measurement of the amount of supplied and transpiring water for the estimation of WUE of soybean (Glycine max L. [Merr.]) cultivars from Brazil under well-watered and water-stressed conditions, as welI as instantaneous WUE (WUEi) in several occasions. Leaf samples were colIected of the youngest fulIy expanded trifoliate and analyzed for Ôl3C values by an IRMS, which were then converted to CID with use of -8.00% as the ÔI3C of the air. Under well-watered condition, WUE was ranged from 2.7 to 3.3 g L-1 and significantly higher in Conquista (drought-tolerant), as compared with BRS-183 (tolerant), BRS-185 and Aurora. WUE was apparently increased to be around 3.4 g L-1 in alI cultivars by water stress from the beginning of flowering for 25 days. of welI-watered Conquista leaves was significantly lower (17.7%) than other cultivars (around 19%). Under the water stress, decreased to be from 17.2 to 17.9% for alI cultivars. There was a negative linear correlation (r2 = 0.929) between WUE and so that it would be reasonable to estimate WUE in field-grown soybeans with the measurement of for its application to drought screening.
700 1 $aNASTASA, V.
700 1 $aSENOO, S.
700 1 $aNEPOMUCENO, A. L.
700 1 $aFARIAS, J. R. B.
700 1 $aNEUMAIER, N.
773 $tIn: INTERNATIONAL CONFERENCE ON INTEGRATED APPROACHES TO SUSTAIN AND IMPROVE PLANT PRODUCTION UNDER DROUGHT STRESS, 2., 2005, Rome. InterDrought - II: final program and abstract book. Rome, 2005. Não paginado.
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