Results 21 to 30 of about 672 (171)

Minimum number of measurements for evaluating Bertholletia excelsa.

open access: yesGenetics and molecular research : GMR, 2017
Repeatability studies on fruit species are of great importance to identify the minimum number of measurements necessary to accurately select superior genotypes. This study aimed to identify the most efficient method to estimate the repeatability coefficient (r) and predict the minimum number of measurements needed for a more accurate evaluation of ...
A B, Baldoni   +4 more
openaire   +2 more sources

Brazil nuts: determination of natural elements and aflatoxin Castanha do Brasil: determinação de elementos naturais e aflatoxinas

open access: yesActa Amazonica, 2012
A study was carried out to evaluate the association of levels of radioactivity, selenium and aflatoxin in shelled Brazil nuts, which were classified in different sizes, for export.
Maristela Martins   +5 more
doaj   +1 more source

Pest potencial of Sitophilus zeamais on Brazil nut under storage conditions

open access: yesBioscience Journal, 2020
The Brazil nut, fruit of Bertholletia excelsa H.B.K., a native plant of the Amazon region and may be considered one of the main extractivist products of countries like Bolivia, Colombia, Guyana, Venezuela, Peru and Brazil.
Evaldo Martins Pires   +5 more
doaj   +3 more sources

Special issue in honour of Prof. Reto J. Strasser - Chlorophyll a fluorescence of Bertholletia excelsa Bonpl. plantations under thinning, liming, and phosphorus fertilization

open access: yesPhotosynthetica, 2020
Phosphorus (P) fertilization and liming can reduce negative effects caused by a sudden increase in light availability after thinning of forest plantations.
K.C. PIRES DA COSTA   +2 more
doaj   +1 more source

Aflatoxins in raw Brazil nut (Bertholletia excelsa H.B.K.)

open access: yesJournal of Agricultural Studies, 2023
The Brazil nut is a nutritionally rich food, produced and consumed in tropical regions. On the other hand, it may be suitable to toxigenic fungi and consequently contamination by aflatoxins (AFL), toxic substances to consumers. In this context, the objective of this work was to evaluate the occurrence of AFL in raw Brazil nuts, that is, before being ...
Ariane Mendonça Kluczkovski   +4 more
openaire   +1 more source

Anthropogenic landscape in southeastern Amazonia: contemporary impacts of low-intensity harvesting and dispersal of Brazil nuts by the Kayapó Indigenous people. [PDF]

open access: yesPLoS ONE, 2014
Brazil nut, the Bertholletia excelsa seed, is one of the most important non-timber forest products in the Amazon Forest and the livelihoods of thousands of traditional Amazonian families depend on its commercialization. B.
Maria Beatriz N Ribeiro   +6 more
doaj   +1 more source

Growth and functional leaf traits of coppice regrowth of Bertholletia excelsa during an El Niño event in the central Amazon [PDF]

open access: yesActa Amazonica, 2023
The most severe drought of this century in the Amazon rainforest, which was caused by El Niño, occurred from 2015 to 2016. With a focus on the ecophysiology of the regrowth of the Brazil nut tree, Bertholletia excelsa, it was investigated how the ...
Saine Leonam Kador FORTES   +6 more
doaj   +1 more source

Effect of Mechanical, Chemical and Physical Scarification on the Germination of Brazil Nut Seeds (Bertholletia excelsa Bonpl.) in Peru [PDF]

open access: yesNature Environment and Pollution Technology
Bertholletia excelsa Bonpl. (Brazil nut) is an economically important species in the Amazon, whose natural seed production takes between 365 and 545 days and shows low germination rates.
Josue Ely Ponce-Avila, Jairo Edson Gutiérrez-Collao, Julio Miguel Ángeles-Suazo, Charles Frank Saldaña-Chafloque, Benancio Pantoja-Medina, Rodrigo Ponce-Escobal and Flor Yenny Tucto-Ortega
doaj   +1 more source

CRESCIMENTO E EFICIÊNCIA DO USO DA ÁGUA DE PLANTAS JOVENS DE CASTANHEIRA-DA-AMAZÔNIA EM ÁREA DEGRADADA E SUBMETIDAS À ADUBAÇÃO

open access: yesCiência Florestal, 2012
This work objectives to analyze the absolute growth rate (AGR), leaf gas exchange and leaf water potential (YW) of young Brazil nut (Bertholletia excelsa Humb.
Marciel José Ferreira   +2 more
doaj   +3 more sources

Growth and survival over ten years of Brazil-nut trees planted in three anthropogenic habitats in northern Amazonia [PDF]

open access: yesActa Amazonica, 2021
We examined the growth and survival of Brazil-nut trees, Bertholletia excelsa (Lecythidaceae) under different environmental conditions and levels of canopy openness within experimental plantations in the Trombetas River valley, in northern Brazil.
Ricardo SCOLES, Rogério GRIBEL
doaj   +1 more source

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