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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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Registro original: |
Embrapa Territorial (CNPM) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria de Alimentos. Para informações adicionais entre em contato com ctaa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
31/08/2017 |
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Data da última atualização: |
05/10/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
VIT, P.; PEDRO, S. R. M.; VERGARA, C.; DELIZA, R. |
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Afiliação: |
Patricia Vit, Universidad de Los Andes, Mérida, Venezuela; Silvia R. M. Pedro, USP; Carlos Vergara, Universidad de las Américas Puebla, Puebla, Mexico; ROSIRES DELIZA, CTAA. |
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Título: |
Ecuadorian honey types described by Kichwa community in Rio Chico, Pastaza province, Ecuador using Free-Choice Profiling. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Revista Brasileira de Farmacognosia, n. 27, p. 384-387, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
tPastaza is the largest and least populated province in Ecuador, with seven native indigenous nationalities.The Kichwas from the Rio Chico community live near to the capital city Puyo, are recognized for theirknowledge on stingless honey bees. From the 400 species of Neotropical Meliponini that make honey incerumen pots, almost 100 thrive in Southern Ecuador, and confer such biodiversity to pot-honey. In thisstudy sensory characteristics of Ecuadorian false and genuine honeys with diverse entomological origin:Apis mellifera ? light amber and amber, Geotrigona leucogastra, Melipona grandis and Scaptotrigona sp. (S.ederi np Schwarz) were investigated with Kichwa assessors (four female and four male, aged 18?62 yearsold). The panel was asked to taste and to identify sensory attributes of honey (appearance, taste, smell,aroma, mouthfeel, other tactile sensations), and to score their intensities in 10 cm unstructured line scalesanchored with the words weak and strong, using the Free-Choice Profile methodology The GeneralizedProcrustes Analysis was used on the data. The first and second dimensions accounted for by 61.1% of thevariance. In the descriptive sensory evaluation, darker honeys (amber A. mellifera, false and Geotrigona)were separated from (light amber A. mellifera, Melipona and Scaptotrigona) by the first dimension; whereasthicker honeys (A. mellifera and false) were discriminated from thinner honeys (Geotrigona, Melipona andScaptotrigona) by the second dimension. The assessors were able to evaluate and differentiate honeytypes without previous sensory training. Remarkably, two Kichwa ladies immediately spit out the falsehoney, in contrast to an acceptance study on 18-honeys, where the false honey was scored among thepreferred ones by 58 participants of the First Congress on Apiculture and Meliponiculture in Ecuador.Therefore, results suggest that Ecuadorian native Kichwas keep a sensory legacy of ancestral knowledgewith forest products such as honey. MenostPastaza is the largest and least populated province in Ecuador, with seven native indigenous nationalities.The Kichwas from the Rio Chico community live near to the capital city Puyo, are recognized for theirknowledge on stingless honey bees. From the 400 species of Neotropical Meliponini that make honey incerumen pots, almost 100 thrive in Southern Ecuador, and confer such biodiversity to pot-honey. In thisstudy sensory characteristics of Ecuadorian false and genuine honeys with diverse entomological origin:Apis mellifera ? light amber and amber, Geotrigona leucogastra, Melipona grandis and Scaptotrigona sp. (S.ederi np Schwarz) were investigated with Kichwa assessors (four female and four male, aged 18?62 yearsold). The panel was asked to taste and to identify sensory attributes of honey (appearance, taste, smell,aroma, mouthfeel, other tactile sensations), and to score their intensities in 10 cm unstructured line scalesanchored with the words weak and strong, using the Free-Choice Profile methodology The GeneralizedProcrustes Analysis was used on the data. The first and second dimensions accounted for by 61.1% of thevariance. In the descriptive sensory evaluation, darker honeys (amber A. mellifera, false and Geotrigona)were separated from (light amber A. mellifera, Melipona and Scaptotrigona) by the first dimension; whereasthicker honeys (A. mellifera and false) were discriminated from thinner honeys (Geotrigona, Melipona andScaptotrigona) by the second dimension. The as... Mostrar Tudo |
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Palavras-Chave: |
Free-Choice; Kichwa; Meliponini. |
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Thesagro: |
Apis Mellifera. |
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Thesaurus NAL: |
Ecuador; honey. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02654naa a2200229 a 4500
001 2074759
005 2017-10-05
008 2017 bl uuuu u00u1 u #d
100 1 $aVIT, P.
245 $aEcuadorian honey types described by Kichwa community in Rio Chico, Pastaza province, Ecuador using Free-Choice Profiling.$h[electronic resource]
260 $c2017
520 $atPastaza is the largest and least populated province in Ecuador, with seven native indigenous nationalities.The Kichwas from the Rio Chico community live near to the capital city Puyo, are recognized for theirknowledge on stingless honey bees. From the 400 species of Neotropical Meliponini that make honey incerumen pots, almost 100 thrive in Southern Ecuador, and confer such biodiversity to pot-honey. In thisstudy sensory characteristics of Ecuadorian false and genuine honeys with diverse entomological origin:Apis mellifera ? light amber and amber, Geotrigona leucogastra, Melipona grandis and Scaptotrigona sp. (S.ederi np Schwarz) were investigated with Kichwa assessors (four female and four male, aged 18?62 yearsold). The panel was asked to taste and to identify sensory attributes of honey (appearance, taste, smell,aroma, mouthfeel, other tactile sensations), and to score their intensities in 10 cm unstructured line scalesanchored with the words weak and strong, using the Free-Choice Profile methodology The GeneralizedProcrustes Analysis was used on the data. The first and second dimensions accounted for by 61.1% of thevariance. In the descriptive sensory evaluation, darker honeys (amber A. mellifera, false and Geotrigona)were separated from (light amber A. mellifera, Melipona and Scaptotrigona) by the first dimension; whereasthicker honeys (A. mellifera and false) were discriminated from thinner honeys (Geotrigona, Melipona andScaptotrigona) by the second dimension. The assessors were able to evaluate and differentiate honeytypes without previous sensory training. Remarkably, two Kichwa ladies immediately spit out the falsehoney, in contrast to an acceptance study on 18-honeys, where the false honey was scored among thepreferred ones by 58 participants of the First Congress on Apiculture and Meliponiculture in Ecuador.Therefore, results suggest that Ecuadorian native Kichwas keep a sensory legacy of ancestral knowledgewith forest products such as honey.
650 $aEcuador
650 $ahoney
650 $aApis Mellifera
653 $aFree-Choice
653 $aKichwa
653 $aMeliponini
700 1 $aPEDRO, S. R. M.
700 1 $aVERGARA, C.
700 1 $aDELIZA, R.
773 $tRevista Brasileira de Farmacognosia$gn. 27, p. 384-387, 2017.
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