MODELOS DE PREDIÇÃO DA ALTURA E DA PRODUÇÃO DE CASTANHA DO BRASIL (BERTHOLLETIA EXCELSA) NO SUDOESTE DA AMAZÔNIA

2021 ◽  
pp. 211-220
Author(s):  
Luciano Ferreira Paes ◽  
Francimara Souza da Costa ◽  
Luiz Carlos da Silva
Keyword(s):  
Bertholletia Excelsa

scholarly journals Corrigendum to “Accurate mapping of Brazil nut trees (Bertholletia excelsa) in Amazonian forests using WorldView-3 satellite images and convolutional neural networks”

2021 ◽  
pp. 101326
Author(s):  
Matheus Pinheiro Ferreira ◽  
Rodolfo Georjute Lotte ◽  
Francisco V. D’Elia ◽  
Christos Stamatopoulos ◽  
Do-Hyung Kim ◽  
...  
Keyword(s):  
Neural Networks ◽  
Convolutional Neural Networks ◽  
Satellite Images ◽  
Brazil Nut ◽  
Bertholletia Excelsa ◽  
Amazonian Forests

scholarly journals Bertholletia excelsa Seeds Reduce Anxiety-Like Behavior, Lipids, and Overweight in Mice

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3212
Author(s):  
Oswaldo Frausto-González ◽  
Claudia J. Bautista ◽  
Fernando Narváez-González ◽  
Alberto Hernandez-Leon ◽  
Erika Estrada-Camarena ◽  
...  
Keyword(s):  
Body Weight ◽  
Body Weight Gain ◽  
Chronic Administration ◽  
Testicular Tissue ◽  
Lipid Lowering ◽  
Bertholletia Excelsa ◽  
Calorie Diet ◽  
Hole Board ◽  
Lipid Reduction ◽  
Hypercaloric Diet

Overweight, obesity, and psychiatric disorders are serious health problems. To evidence the anxiolytic-like effects and lipid reduction in mice receiving a high-calorie diet and Bertholletia excelsa seeds in a nonpolar extract (SBHX, 30 and 300 mg/kg), animals were assessed in open-field, hole-board, and elevated plus-maze tests. SBHX (3 and 10 mg/kg) potentiated the pentobarbital-induced hypnosis. Chronic administration of SBHX for 40 days was given to mice fed with a hypercaloric diet to determine the relationship between water and food intake vs. changes in body weight. Testes, epididymal white adipose tissue (eWAT), and liver were dissected to analyze fat content, triglycerides, cholesterol, and histological effects after administering the hypercaloric diet and SBHX. Fatty acids, such as palmitoleic acid (0.14%), palmitic acid (21.42%), linoleic acid (11.02%), oleic acid (59.97%), and stearic acid (7.44%), were identified as constituents of SBHX, producing significant anxiolytic-like effects and preventing body-weight gain in mice receiving the hypercaloric diet without altering their water or food consumption. There was also a lipid-lowering effect on the testicular tissue and eWAT and a reduction of adipocyte area in eWAT. Our data evidence beneficial properties of B. excelsa seeds influencing global health concerns such as obesity and anxiety.

scholarly journals Toward a phylogenetic-based Generic Classification of Neotropical Lecythidaceae—I. Status of Bertholletia, Corythophora, Eschweilera and Lecythis

Phytotaxa ◽  
2015 ◽  
Vol 203 (2) ◽  
pp. 85 ◽  
Author(s):  
Ya-Yi Huang ◽  
Scott A. Mori ◽  
Lawrence M. Kelly
Keyword(s):  
New World ◽  
Simultaneous Analysis ◽  
Bertholletia Excelsa ◽  
Naturally Occurring

Lecythidaceae subfam. Lecythidoideae is limited to the Neotropics and is the only naturally occurring subfamily of Lecythidaceae in the New World. A subset of genera with zygomorphic flowers—Bertholletia, Corythophora, Eschweilera and Lecythis—comprises a group of about 125 species called the Bertholletia clade. A previous study based on plastid ndhF and trnL-F genes supported the monophyly of Corythophora but suggested that Eschweilera and Lecythis are not monophyletic. Using this study as a baseline, we sampled more taxa and sequenced more loci to address the taxonomic problems of the ambiguous genera and to determine relationships within the Bertholletia clade. Our results support the monophyly of the Bertholletia clade as previously circumscribed. In addition, Corythophora is monophyletic, and the two accessions of Bertholletia excelsa come out together on the tree. Results of the simultaneous analysis do not support the monophyly of Lecythis or Eschweilera. Lecythis consists of four main groups (the Lecythis pisonis, L. poiteaui, L. chartacea, and L. corrugata clades), the last of which is nested within Eschweilera, and Eschweilera consists of three clades (the Eschweilera integrifolia, E. tetrapetala, and Eschweilera parvifolia clades). We compare our results with the generic classification presented in the latest monograph of neotropical Lecythidaceae and make recommendations for a revised generic classification of the Bertholletia clade of Lecythidaceae.

Primary and secondary dispersal of Bertholletia excelsa: Implications for sustainable harvests

2018 ◽  
Vol 415-416 ◽  
pp. 98-105 ◽  
Author(s):  
Lúcia Helena de Oliveira Wadt ◽  
Camila Lima Faustino ◽  
Christina Lynn Staudhammer ◽  
Karen A. Kainer ◽  
Joziane Silva Evangelista
Keyword(s):  
Bertholletia Excelsa ◽  
Secondary Dispersal

scholarly journals Photosynthetic pigments and carbohydrates in young Brazil nut (Bertholletia excelsa H.B.K.) plants exposed to moderate and severe water deficiency

2016 ◽  
Vol 10 (07) ◽  
pp. 920-925 ◽  
Author(s):  
Paula Francyneth Nascimento Silva ◽  
◽  
Carla Leticia Figueredo de Carvalho Souza ◽  
Jose Rodrigo Mendes e Chagas ◽  
Gabriel Mascarenhas Maciel ◽  
...  
Keyword(s):  
Photosynthetic Pigments ◽  
Water Deficiency ◽  
Brazil Nut ◽  
Bertholletia Excelsa

scholarly journals Análise econômica de sistemas agroflorestais na Amazônia ocidental, Machadinho d'Oeste- RO

2005 ◽  
Vol 29 (3) ◽  
pp. 401-411 ◽  
Author(s):  
Michelliny de Matos Bentes-Gama ◽  
Márcio Lopes da Silva ◽  
Luciano Javier Montoya Vilcahuamán ◽  
Marilia Locatelli
Keyword(s):  
Monte Carlo ◽  
Bertholletia Excelsa ◽  
Theobroma Grandiflorum

O objetivo deste estudo foi realizar a análise financeira e a simulação de risco de investimento em sistemas agroflorestais (SAFs) implantados em 1987, no Campo Experimental da Embrapa Rondônia, localizado no município de Machadinho d'Oeste, RO. A análise financeira foi realizada mediante os métodos de avaliação de projetos florestais, e para a análise de risco utilizou-se a técnica de simulação de Monte Carlo, mediante o programa @RISK. Entre os arranjos testados, o SAF T1 Castanha-do-brasil-banana-pimenta-do-reino-cupuaçu apresentou o melhor desempenho financeiro em relação aos SAFs T2 Freijó-banana-pimenta-do-reino-cupuaçu e T3 Pupunha-banana-pimenta-do-reino-cupuaçu . Os custos com tratos culturais e colheita representaram mais de 70% da composição dos custos totais, e a participação da mão-de-obra foi superior a 50% nas fases de preparo da área e de manutenção (tratos culturais) dos SAFs. A simulação da análise de risco indicou que as variáveis que afetaram o Valor Presente Líquido no Horizonte Infinito (VPL*), de acordo com a ordem de importância (R), foram: taxa de desconto, preço do fruto de cupuaçu (Theobroma grandiflorum), custo de colheita, preço da madeira de castanha-do-brasil (Bertholletia excelsa) e o custo de tratos culturais. Apesar do alto custo de implantação e manutenção, o SAF T1 apresentou uma probabilidade de 15% de os valores do Valor Presente Líquido (VPL) se concentrarem em torno de R$35.000 ha-1.ano-1.

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