Coffee Grown
Mostrando 1-12 de 42 artigos, teses e dissertações.
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1. Influence of humus on chromium absorption by coffee seedlings grown on substrate containing tannery sludge
ABSTRACT Chromium is present in the tannery sludges worldwide making it a problem for agriculture. This study aimed to evaluate whether humus functions as a chromium stabilizing agent when using tannery sludge in the substrate of conilon coffee seedlings (Coffea canephora) and to determine what effects there are on leaf development and anatomy. Treatments co
Revista Ceres. Publicado em: 2023
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2. ATR-FTIR FOR CHARACTERIZING AND DIFFERENTIATING DRIED AND GROUND COFFEE CHERRY PULP OF DIFFERENT VARIETIES (Coffea Arabica L.)
ABSTRACT This study aimed to evaluate the performance of the infrared spectrum in the range of 4000−650 cm−1 for characterizing and differentiating dried and ground coffee cherry pulp of different varieties. The spectral data were subjected to first and second derivative treatments to perform the statistical analyses. Three varieties of coffee pulp were
Eng. Agríc.. Publicado em: 2021-02
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3. AN INDEX TO EVALUATE THE ACCEPTANCE OF SPECIALTY COFFEES IN CONSUMER GROUPS
ABSTRACT Numerous factors are related to the individual sensory perception of consumers, which makes it impossible to adapt a model that explains their behavior. In this context and given the scarcity of statistical indexes that evaluate preferences for specialty coffees, new statistical methods should be studied. To this end, our study aimed to create an in
Eng. Agríc.. Publicado em: 2020-10
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4. Sensory quality of Coffea arabica L. genotypes influenced by postharvest processing
Abstract The specialty coffee market has grown significantly in the past decades and has several cultivars with productive potential. The objective of this study was to evaluate the sensory profile of the beverage produced from Coffea arabica L. genotypes based on postharvest processing and to identify cultivars with the greatest genetic potential for coffee
Crop Breed. Appl. Biotechnol.. Publicado em: 05/12/2019
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5. Response of Arabica Coffee Cultivars to Competition from Beggarticks
RESUMO: Objetivou-se neste estudo analisar a resposta de 14 cultivares de café arábica sob três níveis de infestação de Bidens pilosa (picão-preto). Aos 30 dias após o transplantio (DAT) das mudas de 14 cultivares de café arábica para vasos de 11 L, sementes de B. pilosa foram semeadas nos vasos, estabelecendo-se, logo após a emergência, três n�
Planta daninha. Publicado em: 02/12/2019
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6. Effective population size and genetic gain expected in a population of Coffea canephora
Abstract This work aimed to study the effective population size and genetic gain in a population of robusta coffee (Coffea canephora Pierre) and verify the possibility of using recurrent selection. The experiment comprised 25 treatments, consisting of 21 C. canephora progenies and four C. arabica (cultivars) grown in Brazil. The experimental design was a 5x5
Crop Breed. Appl. Biotechnol.. Publicado em: 11/04/2019
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7. Decolorization of remazol brilliant blue R with laccase from Lentinus crinitus grown in agro-industrial by-products
ABSTRACT Lentinus crinitus is a white-rot fungus that produces laccase, an enzyme used for dye decolorization. Enzyme production depends on cultivation conditions, mainly agro-industrial by-products. We aimed to produce laccase from Lentinus crinitus with agro-industrial by-products for dye decolorization. Culture medium had coffee husk (CH) or citric pulp p
An. Acad. Bras. Ciênc.. Publicado em: 25/06/2018
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8. Adaptability and stability of organic-grown arabica coffee production using the modified centroid method
Abstract This study aimed to identify promising arabica coffee genotypes for organic systems. The experiments were arranged in a randomized block design, with 30 genotypes and three replications. The adaptability and stability analysis was carried out using the modified centroid method, considering the mean yield of two biennia (2005/2006 and 2006/2007, 2007
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-12
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9. Biological Nitrogen Fixation by Legumes and N Uptake by Coffee Plants
ABSTRACT Green manures are an alternative for substituting or supplementing mineral nitrogen fertilizers. The aim of this study was to quantify biological N fixation (BNF) and the N contribution derived from BNF (N-BNF) to N levels in leaves of coffee intercropped with legumes grown on four family farms located in the mountainous region of the Atlantic Fores
Rev. Bras. Ciênc. Solo. Publicado em: 16/01/2017
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10. Effects of silicon on the penetration and reproduction events of Meloidogyne exigua on coffee roots
Considering that the root-knot nematode Meloidogyne exigua has caused great yield losses to coffee production in Brazil, this study aimed to determine whether the penetration and the reproduction events of this nematode on the roots of plants from two coffee cultivars with different levels of basal resistance to this nematode could be affected by silicon (Si
Bragantia. Publicado em: 29/04/2015
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11. Influence of air temperature on proteinase activity and beverage quality in Coffea arabica
Fruits were collected from trees of Coffea arabica cv. Obatã grown at Mococa and Adamantina in São Paulo State, Brazil, which are regions with marked differences in air temperature that produce coffee with distinct qualities. Mococa is a cooler location that produces high-quality coffee, whereas coffee from Adamantina is of lower quality. The amino acid an
Braz. J. Bot.. Publicado em: 2012
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12. Vegetative and productive aspects of organically grown coffee cultivars under shaded and unshaded systems
Although Coffea arabica species has its origin in the African understories, there is great resistance on the part of the Brazilian producers for growing this species under agroforestry systems as they fear that shading reduces production. This study aimed at evaluating some vegetative traits and the productivity of organically grown coffee (Coffea arabica L.
Scientia Agricola. Publicado em: 2011-08