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Registros recuperados: 46 | |
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Estrada Ortiz, Elías. |
El efecto de fosfitos en plantas depende fuertemente del estado nutrimental de fósforo en el organismo vivo, ya que plantas deficientes en fósforo son vulnerables a aplicaciones de fosfitos (H2PO3-). La presente investigación se realizó con el objetivo de determinar el efecto del suministro de distintos porcentajes de H2PO3- en la solución nutritiva, sobre el crecimiento, rendimiento y calidad de fruto en fresa. El experimento se realizó en un invernadero tipo túnel del Colegio de Postgraduados, en Montecillo, México, utilizando riego por goteo y tezontle como sustrato, en un diseño experimental en bloques al azar generalizado. Se modificó la solución nutritiva Steiner para utilizarla, en una primera fase al 50%, y al comenzar la fructificación se aumentó... |
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Palavras-chave: Fragaria x ananassa; Fosfitos; Rendimiento; Calidad de fruto; Antocianinas; Phosphites; Yield; Fruit quality; Anthocyanins; Maestría; Edafología. |
Ano: 2010 |
URL: http://hdl.handle.net/10521/165 |
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Espinosa Trujillo, Edgar. |
La variabilidad del color de grano en 114 poblaciones criollas de maíz se clasificó en seis grupos, en el ciclo agrícola PV-2003. Se seleccionaron seis poblaciones, una del blanco, una del amarillo, una del rojo (rojo-2), dos del azul (azul-1 y azul-2) y una del púrpura (rojo-1), para establecer un sistema de cruzas dialélicas en el ciclo agrícola PV-2004. En la F1 semilla de las cruzas hubo diferencias entre progenitores, en la cantidad de antocianinas y su distribución en el pericarpio y en la capa de aleurona. Los efectos aditivos (ACG) y maternos (EM) fueron sobresalientes para el grosor del pericarpio y de la aleurona, para la concentración de antocianinas en las mismas estructuras y para su concentración por unidad de peso de grano (CAkg). Por sus... |
Tipo: Tesis |
Palavras-chave: Antocianinas; Pigmentos; Aptitud combinatoria; Maíz criollo; Heterosis; Anthocyanins; Natural pigments; Combining ability; Native maize; Populations; Heterosis. |
Ano: 2008 |
URL: http://hdl.handle.net/10521/1171 |
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Estrada Ortiz, Elías. |
El efecto de fosfitos en plantas depende fuertemente del estado nutrimental de fósforo en el organismo vivo, ya que plantas deficientes en fósforo son vulnerables a aplicaciones de fosfitos (H2PO3-). La presente investigación se realizó con el objetivo de determinar el efecto del suministro de distintos porcentajes de H2PO3- en la solución nutritiva, sobre el crecimiento, rendimiento y calidad de fruto en fresa. El experimento se realizó en un invernadero tipo túnel del Colegio de Postgraduados, en Montecillo, México, utilizando riego por goteo y tezontle como sustrato, en un diseño experimental en bloques al azar generalizado. Se modificó la solución nutritiva Steiner para utilizarla, en una primera fase al 50%, y al comenzar la fructificación se aumentó... |
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Palavras-chave: Fragaria x ananassa; Fosfitos; Rendimiento; Calidad de fruto; Antocianinas; Phosphites; Yield; Fruit quality; Anthocyanins; Maestría; Edafología. |
Ano: 2010 |
URL: http://hdl.handle.net/10521/165 |
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Camargo,Letícia KP; Resende,Juliano Tadeu V de; Tominaga,Tânia T; Kurchaidt,Sonia Maria; Camargo,Cristhiano K; Figueiredo,Alex Sandro T. |
The aim of this study was to determine some physicochemical characteristics of fruits of eight strawberry cultivars (Aromas, Camino Real, Campinas, Dover, Oso Grande, Toyonoka, Tudla-Milsei and Ventana) cultivated in organic and conventional systems. The evaluated characteristics were soluble solids (SS), titratable acidity (TA), SS/AT ratio and anthocyanins. Evaluated sensory characteristics were flavor and appearance. The cultivars had a differential performance between themselves and among the systems for the evaluated characteristics. Generally, the conventional system produced fruit with higher levels of soluble solids and, organic system produced higher concentrations of anthocyanins. The fruits of the cultivar Toyonoka had the best soluble solids... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fragaria x ananassa; Soluble solids; Anthocyanins; Sensory analysis. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000400022 |
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Costa,Franciscleudo B; Duarte,Priscila S; Puschmann,Rolf; Finger,Fernando L. |
The aim of this work was to study the physical, chemical, physiological and microbiological changes during the flow chart of fresh-cut strawberry. Strawberry cvs. Camarosa, Dover and Tudla, derived from experimental area of the Universidade Federal de Viçosa, were selected by color (red ¾) and absence of wound. Afterwards, the minimal processing was evaluated, as follows: fast cooling, water and ice, removal of the calyx followed by conservation at 5±0.5°C and 90-95% RH for 13 days, sanitation, drainage, cut in halves. Removal of the calyx did not result significant difference for fresh weight, total soluble solids, total titratable acidity, pH and ratio TSS/TTA. The rapid cooling resulted in lower electrolyte leakage and respiratory rate, especially... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fragaria x ananassa Duch; Sanitation; Drainage; Anthocyanins. |
Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362011000400006 |
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FERREIRA, J. C.; VENDRAME, L. P. de C.; RESENDE, G. M. de; AMARO, G. B.; SILVA, G. O. da; MELO, R. A. de C. e. |
Considerando-se a vasta diversidade de cores das raízes de batata-doce, os genótipos de polpa roxa têm se destacado em função do seu conteúdo de antocianinas, fotoquímicos com ação antioxidante. Para avaliar o desempenho de genótipos de batata-doce de polpa roxa, foram conduzidos dois experimentos, novembro-2018 a março-2019 (temperaturas mais elevadas) e outro em julho a novembro-2019 (temperaturas menores). O delineamento experimental foi o de blocos casualizados com seis genótipos: BGBD-0005, BGBD-0080, BGBD-1261, BGBD-1399, BGBD-1402 e BGBD-1405 e duas cultivares (Brazlândia Roxa e Beauregard), como testemunhas. No segundo experimento foi incluído o genótipo Sergipana. Os genótipos BGBD-0005, BGBD-1261 e BGBD-1405 superaram produtividades de 40 t ha-1... |
Tipo: Folhetos |
Palavras-chave: Vale do São Francisco; Semiárido; Genótipos de polpa roxa; Batata Doce; Raiz Alimentícia; Produtividade; Tubérculo; Hortaliça; Ipomoea Batatas; Antocianina; Ipomoea; Anthocyanins. |
Ano: 2022 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1150497 |
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Yamamoto,Lilian Yukari; Koyama,Renata; Assis,Adriane Marinho de; Borges,Wellington Fernando Silva; Oliveira,Izadora Rodrigues de; Roberto,Sergio Ruffo. |
Abstract : The objective of this work was to evaluate the effect of (S)-cis-abscisic acid (S-ABA) application at different ripening stages, in increasing phenolic compounds and color of berry and juice of 'Isabel' grape (Vitis labrusca). The evaluated treatments were: control, without S-ABA application; 400 mg L-1S-ABA applied 7 days before veraison (DBV) + 400 mg L-1S-ABA at 35 days after first application (DAFA); 400 mg L-1S-ABA applied at veraison (V) + 400 mg L-1S-ABA at 35 DAFA; and 400 mg L-1S-ABA applied 7 days after veraison (DAV) + 400 mg L-1S-ABA at 35 DAFA. There was no difference among treatments regarding the physical characteristics of berries and clusters, as well as total polyphenols in berry and juice. However, there was an increase in... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis labrusca; Anthocyanins; Color; Growth regulador. |
Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015001201160 |
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Amarante,Cassandro Vidal Talamini do; Souza,Alexandra Goede de; Benincá,Thalita Dal Toé; Steffens,Cristiano André; Ciotta,Marlise Nara. |
Abstract: The objective of this work was to characterize entire flowers of the feijoa (Acca sellowiana) genotypes 'Alcântara', 'Helena', 'Mattos', 'Nonante', and the accession 2316 for dry matter, total antioxidant activity (TAA), and the contents of soluble solids, ascorbic acid, total anthocyanins, total flavonoids, and total phenolic compounds (TPC), as well as for the petal surface areas and colors. The TAA was quantified by the ABTS and DPPH methods. Flowers of the accession 2316 and of the cultivars Alcântara and Helena showed the highest contents of anthocyanins and flavonoids, as well as the highest values of TPC and TAA. The feijoa genotypes cultivated in Southern Brazil show high contents of soluble solids and represent a natural source of... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Acca sellowiana; Anthocyanins; Ascorbic acid; Flavonoids; Soluble solids; Total antioxidant activity; Total phenolic compounds. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000102701 |
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Roberto,Sergio Ruffo; Assis,Adriane Marinho de; Yamamoto,Lilian Yukari; Miotto,Lidiane Carla Vilanova; Koyama,Renata; Sato,Alessandro Jefferson; Borges,Rogério de Sá. |
The objective of this work was to evaluate the effect of ethephon and of abscisic acid (ABA) application timing on the color of 'Rubi' Table grape. Eight treatments were evaluated: control, without application; ethephon 500 mg L‑1 applied seven days after veraison (7 DAV); and two concentrations of ABA (200 and 400 mg L‑1) arranged with three application timings at 7 DAV, at 15 days before harvest (DBH), and at 7 DAV + 15 DBH. ABA does not modify physical‑chemical characteristics of the cluster and improves the color of grapes, especially when applied twice (7 DAV + 15 DBH) at the concentration of 400 mg L‑1. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis vinifera; ABA; Anthocyanins; Plant growth regulator. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2013000700013 |
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Nassur,Rita de Cássia Mirela Resende; Pereira,Giuliano Elias; Alves,Juliana Alvarenga; Lima,Luiz Carlos de Oliveira. |
The objective of this work was to evaluate the influence of different combinations of grape cultivars and rootstocks on chemical characteristics of grape juices. Six treatments were evaluated, consisting of combinations between the Isabel Precoce and BRS Cora grape cultivars and the 'IAC 766', 'IAC 313', and 'IAC 572' rootstocks. Approximately 10 L of juice were obtained per treatment. Analyses of color, total soluble solids content, pH, anthocyanins, total phenolics, total sugars, and quantification and identification of biogenic amines by HPLC were performed. Biogenic amines, such as putrescine, cadaverine, spermidine, and spermine, were found in all evaluated cultivars. By principal component analysis (PCA), treatments can be divided into two groups,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vitis labrusca; Anthocyanins; Biogenic amines; Phenolics; Principal component analysis. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014000700540 |
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GONÇALVES,NIGÉRIA PEREIRA; LUCENA,ELISEU MARLÔNIO PEREIRA DE; BONILLA,ORIEL HERRERA; SILVEIRA,MÁRCIA RÉGIA SOUZA DA; TAVARES,FRANCISCA JÉSSICA COSTA. |
ABSTRACT Fruits provide not only essential nutrients for food, but also bioactive compounds that promote health benefits and help reducing the risk of developing non-communicable chronic diseases. In this sense, this work aimed at quantifying bioactive compounds during the maturation of four fruits native to the Restinga forest of Ceara. Myrtle fruits (Eugenia punicifolia (Kunth) DC.) were collected at the Botanical State Park of Ceara, Caucaia-CE, and guajiru (Chrisobalanus icaco L.), manipuça (Mouriri cearensis Huber) and murici-pitanga fruits (Byrsonima gardneriana A. Juss.) at the Botanical Garden of São Gonçalo, São Gonçalo do Amarante-CE. Fruits were collected at different stages (E) and transported to the Laboratory of Plant Ecophysiology, being... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ascorbic acid; Chlorophyll; Carotenoids; Anthocyanins; Yellow flavonoids. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000500303 |
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Registros recuperados: 46 | |
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