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Registros recuperados: 4
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Controlled irrigation and nitrogen, phosphorous and potassium fertilization affect the biochemical composition and quality of Arabica coffee beans. Repositório Alice
VINECKY, F.; DAVRIEUX, F.; MERA, A. C.; ALVES, G. S. C.; LAVAGNINI, G.; LEROY, T.; BONNOT, F.; ROCHA, O. C.; BARTHOLO, G. F.; GUERRA, A. F.; RODRIGUES, G. C.; MARRACCINI, P.; ANDRADE, A. C..
Controlled irrigation during the dry period associated with adequate nitrogen (N), phosphorous (P) and potassium (K) fertilization led to the accumulation of biochemical compounds in coffee beans considered as positive precursors of beverage quality. Adult plants of coffee (Coffea arabica ?Rubi?) were cultivated using different water regimes (WR) and fertilization conditions under the dry climate of the Brazilian Cerrado. Coffee-bean physical characteristics were evaluated as well as biochemical composition by near-infrared analysis. The K treatment mostly affected bean biochemistry, lipid and chlorogenic acid (CGA) contents, which increased with increasing amounts of fertilizer. Caffeine contents increased with higher amounts of N, but no significant...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Sistema de irrigação; Fertilidade do Solo; Fertilizante Nitrogenado; Fertilizante Potássico; Fertilizante Fosfatado; Coffea Arabica.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1065059
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Controlled irrigation and nitrogen, phosphorous and potassium fertilization affect the biochemical composition and quality of Arabica coffee beans. Repositório Alice
VINECKY, F.; DAVRIEUX, F.; MERA, A. C.; ALVES, G. S. C.; LAVAGNINI, G.; LEROY, T.; BONNOT, F.; ROCHA, O. C.; BARTHOLO, G. F.; GUERRA, A. F.; RODRIGUES, G. C.; MARRACCNINI, P.; ANDRADE, A. C..
Controlled irrigation during the dry period associated with adequate nitrogen (N), phosphorous (P) and potassium (K) fertilization led to the accumulation of biochemical compounds in coffee beans considered as positive pre-cursors of beverage quality. Adult plants of coffee (Coffea arabica?Rubi?) were cultivated using different water regimes (WR) and fertilization conditions under the dry climate of the Brazilian Cerrado. Coffee-bean physical characteristics were evaluated as well as biochemical composition by near-infrared analysis. The K treatment mostly affected bean biochemistry, lipid and chlorogenic acid (CGA) contents, which increased with increasing amounts of fertilizer. Caffeine contents increased with higher amounts of N, but no significant...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Controlled irrigation; Caffeine.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1066248
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Effects of shade on the development and sugar metabolism of coffee (Coffea arabica L.) fruits. Repositório Alice
GEROMEL, C.; FERREIRA, L. P.; DAVRIEUX, F.; GUYOT, B.; RIBEYRE, F.; SCHOLZ, M. B. dos S.; PEREIRA, L. F. P.; VAAST, P.; POT, D.; LEROY, T.; ANDROCIOLI FILHO, A.; VIEIRA, L. G. E.; MAZZAFERA, P.; MARRACCINI, P..
Coffee fruits grown in shade are characterized by larger bean size than those grown under full-sun conditions. The present study assessed the effects of shade on bean characteristics and sugar metabolism by analyzing tissue development, sugar contents, activities of sucrose metabolizing enzymes and expression of sucrose synthase-encoding genes in fruits of coffee (Coffea arabica L.) plants submitted to full-sun (FS) and shade (SH) conditions. Evolution of tissue fresh weights measured in fruits collected regularly from flowering to maturation indicated that this increase is due to greater development of the perisperm tissue in the shade. The effects of light regime on sucrose and reducing sugar (glucose and fructose) contents were studied in fresh and dry...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Coffea arabica; Fruit development; Gene expression; Shade; Sucrose synthase; Sugar metabolism.
Ano: 2008 URL: http://www.alice.cnptia.embrapa.br/handle/doc/880536
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Soluble sugars, enzymatic activities and gene expression during development of coffee fruits submitted to shade condition. Repositório Alice
MARRACCINI, P.; GEROMEL, C.; FERREIRA, L. P.; PEREIRA, L. F. P.; LEROY, T.; POT, D.; DAVRIEUX, F.; RIBEYRE, F.; GUYOT, B.; SCHOLZ, M. B. S.; ANDROCIOLI FILHO, A.; VIEIRA, L. G. E.; MAZZAFERA, P..
Effects of shade (50% light) condition on development and sugar metabolism was analyzed in fruits of Coffea arabica L. var. IAPAR 59. Fresh weight measurements of separated tissues (pericarp, perisperm and endosperm) showed that the increased size observed in beans of shaded plants was correlated with high perisperm development. Reducing sugar contents in the pericarp and endosperm of fruits from shaded plants appeared higher than in the same tissues of control (?full-sun?) plants. On the contrary, sucrose content was slightly lower in shade than in control beans. At the enzymatic level, sucrose synthase activities detected in the latest stages (197-231 DAF) of perisperm development from shaded plants were higher than from of control, confirming the...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Sugar metabolism; Coffea arabica L. var.; IAPAR 59.
Ano: 2007 URL: http://www.alice.cnptia.embrapa.br/handle/doc/885784
Registros recuperados: 4
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