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Registro Completo |
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
29/03/2010 |
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Data da última atualização: |
23/05/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
RONQUIM, C. C.; PRADO, H. B. A. P.; SOUZA, J. P. de. |
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Afiliação: |
CARLOS CESAR RONQUIM, CNPM; CARLOS HENRIQUE B. A. PRADO, Universidade Federal de São Carlos; JOÃO PAULO DE SOUZA, Universidade Federal de Goiás. |
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Título: |
Growth, photosynthesis and leaf water potential in young plants of Copaifera langsdorffii Desf. (Caesalpiniaceae) under contrasting irradiances. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Brazilian Journal of Plant Physiology, Campos dos Goytacazes, v. 21, n. 3, p. 197-208, 2009. |
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Idioma: |
Inglês |
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Conteúdo: |
Growth and leaf nutrient content were compared in young potted plants of Copaifera langsdorffii in sunny and shaded areas without water stress. Besides, carbon assimilation and leaf water relations were evaluated by net photosynthesis, potential photochemical efficiency and water potential during dally courses in dry and rainy periods under natural conditions in both contrasting irradiances. Higher values of total biomass, height and leaf area occurred in sunny than in shaded area. On the other hand, all young plants survived in shade under natural water stress probably by reason of fast and intense biomass accumulation in favor of roots in early development. There was no significant difference about nutrient concentration in leaves between plnats growing in sunny and shaded areas. Net photosynthesis in shade increased occasionally when bunches of direct light reached the leaves. Theses sunflecks took place more frequently and high intensity in dry period but they were more effective for net photosynthesis in rainy period. The ability of young plants to persist under natural conditions in contrasting irradiance up to 1,230 days after sowing could explain the wide distribution of C. langsdorffii in Cerrado physiognomies and in different types of forest. |
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Palavras-Chave: |
Biomass partitioning; Chlorophyll fluorescense; Irradiance; Leaf gas exchange; Sunflecks. |
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Thesagro: |
Cerrado. |
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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/item/35252/1/v21n3a04.pdf
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Marc: |
LEADER 01989naa a2200217 a 4500
001 1662613
005 2011-05-23
008 2009 bl uuuu u00u1 u #d
100 1 $aRONQUIM, C. C.
245 $aGrowth, photosynthesis and leaf water potential in young plants of Copaifera langsdorffii Desf. (Caesalpiniaceae) under contrasting irradiances.
260 $c2009
520 $aGrowth and leaf nutrient content were compared in young potted plants of Copaifera langsdorffii in sunny and shaded areas without water stress. Besides, carbon assimilation and leaf water relations were evaluated by net photosynthesis, potential photochemical efficiency and water potential during dally courses in dry and rainy periods under natural conditions in both contrasting irradiances. Higher values of total biomass, height and leaf area occurred in sunny than in shaded area. On the other hand, all young plants survived in shade under natural water stress probably by reason of fast and intense biomass accumulation in favor of roots in early development. There was no significant difference about nutrient concentration in leaves between plnats growing in sunny and shaded areas. Net photosynthesis in shade increased occasionally when bunches of direct light reached the leaves. Theses sunflecks took place more frequently and high intensity in dry period but they were more effective for net photosynthesis in rainy period. The ability of young plants to persist under natural conditions in contrasting irradiance up to 1,230 days after sowing could explain the wide distribution of C. langsdorffii in Cerrado physiognomies and in different types of forest.
650 $aCerrado
653 $aBiomass partitioning
653 $aChlorophyll fluorescense
653 $aIrradiance
653 $aLeaf gas exchange
653 $aSunflecks
700 1 $aPRADO, H. B. A. P.
700 1 $aSOUZA, J. P. de
773 $tBrazilian Journal of Plant Physiology, Campos dos Goytacazes$gv. 21, n. 3, p. 197-208, 2009.
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Embrapa Territorial (CNPM) |
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| 1. |  | MELO, B. C. L. de; BRAGA, E. C. de O.; MARTINS, V. de C.; TORQUILHO, H. de S.; NASCIMENTO, L. da S. de M. do; PACHECO, S.; SANTIAGO, M. C. P. de A.; BORGUINI, R. G.; GODOY, R. L. de O. Avaliação dos teores de aminoácidos do fruto Goji (Lycium barbarum Linnaeus). In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE QUÍMICA, 37., 2014, Natal. O papel da Química no cenário econômico atual: competitividade com responsabilidade: anais. São Paulo: Sociedade Brasileira de Química, 2014. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| 2. | | BRAGA, E. C. de O.; MELO, B. C. L. de; MARTINS, V. de C.; MACHADO, A. M. R.; NASCIMENTO, L. da S. de M. do; PACHECO, S.; SANTIAGO, M. C. P. de A.; OLIVEIRA, L. M. de; SOUZA, M. C.; BORGUINI, R. G.; GODOY, R. L. de O.; BOBEDA, C. R. R. Quantificação de carotenoides e vitamina C em frutos de Eugenia punicifolia Humb. Benpl. & Kunth DC. In: REUNIÃO ANUAL DA SOCIEDADE BRASILEIRA DE QUÍMICA, 37., 2014, Natal. O papel da Química no cenário econômico atual: competitividade com responsabilidade: anais. São Paulo: Sociedade Brasileira de Química, 2014. 1 CD-ROM.| Tipo: Resumo em Anais de Congresso |
| Biblioteca(s): Embrapa Agroindústria de Alimentos. |
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| Registros recuperados : 2 | |
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