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| Registros recuperados: 14 | |
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| DANTAS, A. R.; GUEDES, M. C.; VASCONCELOS, C. da C.; ISACKSSON, J. G. L.; PASTANA, D. N. B.; LIRA-GUEDES, A. C.; PIEDADE, M. R. F.. |
| Introduction: Pentaclethra macroloba is a hyperdominant tree in the Amazon estuary of great socioeconomic importance for the region because the oil from its seeds is a powerful herbal medicine. Objective: We aimed to characterize the morphological structure, the morphological adaptations in response to the daily flooding of the Amazon estuary and the biogeographic area of P. macroloba. Methods: Detailed description of the external morphology, from germination to the adult tree, was obtained from individuals located in floodplain forest, Northeast Amazonia. The occupation area and the geographical extension of P. macroloba were determined from point of geographical coordinates of botanical samples deposited in the digital collections of Mobot and... |
| Tipo: Artigo de periódico |
Palavras-chave: Morphological adaptation; Tidal flooding; Neotropical tree; Pracaxi oil; Management; Conservation; Pracaxi; Óleo Vegetal; Gestão; Conservação; Adventitious roots. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132419 |
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| LIRA-GUEDES, A. C.; BARBOSA, R. C.; GUABIRABA, I. R.; EULER, A. M. C.. |
| Algumas atividades de uso da biodiversidade na Amazônia são culturalmente desenvolvidas por mulheres, como a extração artesanal de óleos de sementes florestais. Essa cultura está relacionada ao conhecimento tradicional sobre o uso de plantas medicinais, principalmente por parteiras e/ou benzedeiras. A comunidade do Limão do Curuá - Ilha que compõem o Arquipélago do Bailique, costa leste do Amapá ? vem ganhando destaque, no Estado, nos últimos anos, devido à extração artesanal de óleo de sementes de pracaxi (Pentaclethra macroloba (Wild.) Kuntze), realizada por, aproximadamente, 70 mulheres. Esse óleo é um produto fitoterápico conhecido localmente por seu poder antiofídico e de cicatrização, e vem recebendo notoriedade nas indústrias de fármacos e... |
| Tipo: Parte de livro |
Palavras-chave: Pracaxi; Mulher Rural; Planta Medicinal. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1119287 |
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| DANTAS, A. R.; GUEDES, M. C.; LIRA-GUEDES, A. C.; PIEDADE, M. T. F.. |
| Natural history of hyperdominant tree populations in the Brazilian Amazon Region is still unknown in plant science. Pentaclethra macroloba (Willd.) Kuntze (Fabaceae) is a hyperdominant tree species which has multiple uses and its seeds are extensively explored to extract medicinal oil. We evaluated the phenological cycles and floral visitors of P. macroloba and the effect of the daily tide of the Amazon River on the phenophases. Phenophases of flower bud, anthesis flowers, immature fruit, ripe fruit, seed dispersal, new leaf, mature leaf, and leaf fall of 29 trees in the Northeast of the Brazilian Amazon were monitored during 28 months. Hydrometeorological data of rainfall, maximum temperature and flood height on the tree trunk were obtained. Generalized... |
| Tipo: Artigo de periódico |
Palavras-chave: Daily tide; Phenophases; Pracaxi oil; Rainfall; Reproductive strategy; Pracaxi; Pollination. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1137799 |
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| DANTAS, A. R.; PIEDADE, M. T. F.; GUEDES, M. C.; LIRA-GUEDES, A. C.. |
| Pentaclethra macroloba (pracaxizeiro) is a hyperdominant species of the Amazon estuary floodplain. The oil extracted from its seeds has medicinal properties. The effect of the polymodal flood cycle on the phenology of tree, including the pracaxizeiro, from Amazonian estuary is little known. The hypothesis that the flood pulse is the main factor that directs the phenological processes of the pracaxizeiro was tested. Reproductive and vegetative phenophases of 30 pracaxizeiro were monitored fortnight from September/2017 to September/2018, in the Environmental Protection Area of Fazendinha, Macapá, Brazil. Phenophases were correlated with maximum temperature (°C), precipitation (mm) and flood level (cm), using the Spearman correlation. There was positive... |
| Tipo: Parte de livro |
Palavras-chave: Pracaxi; Pentaclethra Macroloba; Fisiologia Vegetal. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1119308 |
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| DANTAS, A. R.; PIEDADE, M. T. F.; GUEDES, M. C.; LIRA-GUEDES, A. C.. |
| The flood cycle of floodplain forests and topographic variations are important factors of diversification and morphological and ecophysiological adaptations of the plant community. Pentaclethra macroloba is a hyperdominant species adapted to flood variations. The objective of this study was to characterize the P. macroloba population structure between environments with high topography, flooded only during the rainy season and peak flood of the river, (high várzea-HV) and low topography with daily flood (low várzea-LV). The study was carried in the Mazagão Experimental Field, Brazil. Four plots of 1 ha were installed in each environment. All individuals with DBH ≥ 5 cm were measured and georeferenced. ANOVA test, 0.05% probability, was applied to... |
| Tipo: Parte de livro |
Palavras-chave: Pracaxi; Dinâmica Populacional. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1119312 |
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| DANTAS, A. R.; MARANGON, L. C.; GUEDES, M. C.; FELICIANO, A. L. P.; LIRA-GUEDES, A. C.. |
| We analyzed the spatial distribution pattern of Pentaclethra macroloba to assist in the development of management plans and conservation of this species in estuarine floodplain forests. The study was conducted in an area of floodplain forest of 55.94 ha, in Mazagão, Amapá, Brazil. A census was performed and all individuals of ? 30 cm circumference at breast height (CBH), living and dead, were georeferenced. Ripley's K function was used to analyze the spatial distribution of the population, including mortality and diameter classes. The relationships between distance to the edge of inundation and density and basal area of the population were analyzed using linear regression. We recorded 993 live individuals and 22 dead. The distribution of the population was... |
| Tipo: Artigo de periódico |
Palavras-chave: Dispersal; Árvore Florestal; Pracaxi; Dispersão; Forest trees. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1091214 |
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| Esta semana, o Prosa Rural apresenta uma pesquisa participativa, envolvendo populações locais sobre o ambiente natural, associado especialmente às mulheres ribeirinhas da região, conduzida pela pesquisadora Ana Cláudia Lira Guedes, da Embrapa Amapá, sobre as inovações na extração do óleo de sementes de pracaxizeiro, uma árvore típica da Amazônia. No programa são apresentadas as etapas de: coleta das sementes, lavagem, descascamento, secagem ao sol, trituração das sementes secas, preparo da massa, prensagem e envasamento do óleo. |
| Tipo: Prosa Rural (INFOTECA-E) |
Palavras-chave: Árvore Florestal; Mulher Rural; Óleo Vegetal; Pracaxi; Prensagem; Tratamento de Semente. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1136566 |
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| Registros recuperados: 14 | |
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