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| Martinez,Herminia Emilia Prieto; Lacerda,José Soares de; Clemente,Junia Maria; Silva Filho,Jaime Barros da; Pedrosa,Adriene Woods; Santos,Ricardo Henrique Silva; Cecon,Paulo Roberto. |
| Abstract: The objective of this work was to evaluate the effect of copper on the chemical composition of coffee beans and on the quality of the beverage, relating both of them to the Cu leaf contents in coffee (Coffea arabica) plants. Coffee plants were grown in a hydroponic system containing 0.2, 0.4, 0.8, 1.6, and 3.2 μmol L-1 Cu until fruit setting. Coffee bean production was evaluated, and, after the cherries were dried, the following characteristics were determined: leaf Cu content; total titratable acidity; color index; electrical conductivity; leached K; polyphenol oxidase (PPO) activity; concentrations of caffeine, trigonelline, organic acids, total phenols, chlorogenic acids (3-CQA, 4-CQA, and 5-CQA), sucrose, glucose, arabinose, mannose, and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea arabica; Nutrition; Sensory analysis. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018000400443 |
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| Cunha,Mário Lúcio Pereira; Aquino,Leonardo Angelo; Novais,Roberto Ferreira; Clemente,Junia Maria; and,Priscila Maria de Aquino; Oliveira,Thaisa Fernanda. |
| ABSTRACT Univariate methods for diagnosing nutritional status such as the sufficiency range and the critical level for garlic crops are very susceptible to the effects of dilution and accumulation of nutrients. Therefore, this study aimed to establish bivariate and multivariate norms for this crop using the Diagnosis and Recommendation Integrated System (DRIS) and Nutritional Composition Diagnosis (CND), respectively. The criteria used were nutritional status and the sufficiency range, and then the diagnoses were compared. The study was performed in the region of Alto Paranaíba, MG, Brazil, during the crop seasons 2012 and 2013. Samples comprised 99 commercial fields of garlic, cultivated with the cultivar “Ito” and mostly established in Latossolo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nutritional balance; Diagnostic indexes; Allium sativum L. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100502 |
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| Dezordi,Luciel Rauni; Aquino,Leonardo Angelo de; Aquino,Rosiane Filomena Batista de Almeida; Clemente,Junia Maria; Assunção,Natália Silva. |
| ABSTRACT Leaf analysis may identify nutrient deficiency or excess in plant tissue. The aim of this study was to determine reference values and generate nutritional diagnosis from the results of leaf analysis of the carrot crop (Daucus carota L.) by the methods of Critical Level, Sufficiency Range, Diagnosis and Recommendation Integrated System, and Compositional Nutrient Diagnosis. Contents of N, P, K, Ca, Mg, S, B, Cu, Fe, Mn, and Zn were determined in 210 carrot fields in the 2012 and 2013 crop seasons in the Alto Paranaíba region, MG, Brazil. The whole plant shoot was sampled at harvest time to generate reference values for diagnosis. The high yielding subpopulation showed yield higher than 87.8 Mg ha-1. The four diagnostic methods generated similar... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Daucus carota L.; Leaf critical level; DRIS; CND. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832016000100517 |
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