Consulta: subjectFacets:"Acidity"
Registros recuperados: 33
Data/hora: 05/06/2024 10:02:12

1-Methylcyclopropene delays tomato fruit ripening
Provedor de dados: 75
Autores: Moretti,Celso Luiz; Araújo,Alessandra L.; Marouelli,Waldir Aparecido; Silva,Washington Luiz C.
Tomato (Lycopersicon esculentum Mill.) fruits, cv. Santa Clara, were harvested at the breaker stage from commercial fields in Brazlândia, Brazil, to investigate the ability of 1-methylcyclopropene (1-MCP) to retard tomato fruit ripening. Fruit without external blemishes were graded for size (diameter = 80±5 mm) and mass (m = 130±10 g), placed inside hermetically sealed boxes, and 1-MCP was applied for 12 hours (T = 22±1°C; RH = 80-85%) at four different concentrations: 0 (control), 250, 500 and 1000 mL.L-1. Fruits were held at ambient conditions (T = 23±2°C; RH 80-85%) for 2 days and then stored inside a cold room (T = 20±1°C; RH = 85-95%). Every 3 days, during a 15-day period, fruits were analyzed for firmness, total soluble solids, titratable acidity,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentum; Acidity; Color; Carotenoids; Ethylene; Firmness; Postharvest.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362002000400030

Necessidade de calcário em solos da Zona Bragantina.
Provedor de dados: 14
Autores: STRUCHTEMEYER, R. A.; CHAVES, D. M.; BASTOS, J. B.; SOUZA, G. F. de; CRUZ, E. de S.; MAGALHÃES, J. C. A. J. de.
bitstream/item/146481/1/CALCARIO.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Concrecionario lateritico; Glei; Zona bragantina; Pará; Amazônia Brasil; Yellow latosso; Lateritic concrecionary; Gley soil; Calcareous; Analysis.; Acidez; Análise; Calcário; Latossolo Amarelo; Solo.; Acidity; Soil.
Ano: 1971
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376546

Alterações na matéria orgânica e nas características químicas de um Podzol hidromórfico sob pastagens cultivadas no Pantanal Sul-Mato-Grossense.
Provedor de dados: 14
Autores: FERNANDES, F. A.; CERRI, C. C.; FERNANDES, A. H. B. M.
Estudou-se uma cronosseqüência de introdução de pastagens cultivadas em áreas com 10 e 20 anos de implantação, tendo uma área de Cerrado intacto como referência. Coletaram-se amostras até 40cm de profundidade ao longo de dois transectos, para cálculo dos estoques de C e N e determinações químicas. Também abriram-se trincheiras e coletaram-se amostras de solo até 1m de profundidade, para estudo das variações nos conteúdos de C e N no perfil. Após 10 anos de cultivo, o solo apresentou aumento no teor de bases trocáveis e na capacidade de troca catiônica, e diminuição da acidez. Entretanto, após 20 anos, os teores de bases trocáveis e a capacidade de troca catiônica diminuíram e a acidez aumentou, indicando tendência do sistema de retornar ao equilíbrio...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Característica química; Bases trocáveis; Carbono orgânico; Frações húmicas; Chemical characteristics; Organic carbon; Humic fractions; Cultivated pasture.; Acidez; Fracionamento; Matéria Orgânica; Nitrogênio; Pastagem Cultivada; Solo.; Acidity; Pantanal; Fractionation; Exchangeable cations; Organic matter; Nitrogen; Soil.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/810747

Soja: adubacao e calagem no Brasil.
Provedor de dados: 14
Autores: SFREDO, G. J.; BORKERT, C. M.
Adubacao; Gesso agricola; Correcao da acidez do solo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Gesso agricola; Brasil; Soybean; Fertilization.; Acidez; Adubação; Calagem; Soja.; Acidity; Brazil; Gypsum; Liming.
Ano: 1991
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445618

Recomendações técnicas para a cultura da soja no Paraná 1989/90.
Provedor de dados: 14
Autores: OCEPAR. Programa de Pesquisa (Cascavel, PR).
Cenário da soja; Manejo do solo; Rotação de culturas; Clima; Cultivares; População e densidade de semeadura; Épocas de semeadura; Instalação da lavoura; Controle de plantas daninhas; Manejo de pragas; Controle de doenças; Colheita; Retenção foliar ("haste verde").
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendação técnica; Cultivar; Brasil; Paraná; Semeadura direta; Gesso agricola; Rotação; Planta daninha; Soybean; Technical recommendation; Cultural practice; Variety; Weed; Pest; Disease; Fungus; Harvest.; Acidez; Bactéria; Calagem; Colheita; Doença; Fungo; Praga; Pratica Cultural; Solo; Soja; Vírus.; Acidity; Crop rotation; Brazil; Gypsum; Liming; Soil; Sowing date.
Ano: 1989
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/448324

Identificação de genótipos de soja com maior tolerância a acidez do solo.
Provedor de dados: 14
Autores: BEN, J. R.; VIEIRA, S. A.; BERTAGNOLLI, P. F.; DAL'PIAZ, R.; SANTOS, P. R. W. dos.
bitstream/item/133843/1/ID10216-1985-1986sojaresultados-p61-62.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Soybean; Tolerance.; Genótipo; Melhoramento.; Brazil; Acidity; Breeding; Genotype; Soil.
Ano: 1986
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/821986

Efeito do déficit fenológico de água sobre a produção e características industriais do tomate.
Provedor de dados: 14
Autores: CHOUDHURY, E. N.; MILLAR, A. A.
Estudo do efeito do deficit fenologico da agua sobre a producao e caracteristicas industriais do tomate, variedade Rossol VNF, com oito tratamentos e tres repeticoes. Os deficits de agua foram provocados em determinados periodos do ciclo fenologico da cultura. O solo foi mantido com condicoes otimas de umidade antes e depois dos periodos de deficit de agua. As producoes comerciaveis apresentaram diferenca significativa entre os tratamentos, ao nivel de 5% de probabilidade. As fases de inicio de frutificacao e desenvolvimento dos primeiros frutos caracterizaram-se como as fases mais criticas da cultura ao deficit de agua apresentando reducao nos rendimentos da ordem de 61,9 e 59,8% respectivamente. Os teores de solido soluveis e de acidez nao foram...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Tomate industrial; Estresse hídrico; Sólido solúvel; Solubel solid; Tomato; Variety.; Tomate; Solo; Acidez; Comercialização; Lycopersicon Esculentum; Manejo; Variedade.; Soil; Acidity; Water stress.
Ano: 1995
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131774

Os calcários do Estado do Pará e suas possibilidades de utilização na calagem dos solos.
Provedor de dados: 14
Autores: GUIMARÃES, G. de A.; SANTOS, J. M. S.
bitstream/item/162577/1/FL01877-.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Classificação; Depósito; Pará; Brasil; Calcareous; Deposit.; Acidez; Calcário; Calagem; Solo.; Amazonia; Acidity; Classification; Liming; Soil.
Ano: 1968
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375935

Microrganismos de processos biológicos do solo: perspectiva ambiental.
Provedor de dados: 14
Autores: SIQUEIRA, J. O.; MOREIRA, F. M. de S.; GRISI, B. M.; HUNGRIA, M.; ARAUJO, R. S.
Organismos e processos biologicos do solo; Ciclagem dos elementos no solo; Aspectos biologicos da degradacao do solo; Reabilitacao de solos degradados.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Microorganismos; Toxicidade do aluminio; Fixacao biologica do nitrogenio; Degradacao do solo; Brasil; Microorganism; Environmental; Biological nitrogen fixation; Mycorhiza.; Acidez; Ecologia; Matéria Orgânica; Micorriza; Microbiologia; Meio Ambiente; Solo.; Acidity; Degradation; Ecology; Brazil; Organic matter; Microbiology; Soil; Toxicity.
Ano: 1994
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/449290

Uso de gesso agrícola nos solos dos cerrados.
Provedor de dados: 14
Autores: SOUSA, D. M. G. de; LOBATO, E.; REIN, T. A.
bitstream/item/99080/1/cirtec-32.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Brasil; Brazilian Savanna; EMBRAPA-CPAC; Gesso agrícola; Savanas; Soil fertilization; Subsoil Acidity; Sulphur; Uso.; Adubação; Agricultura; Cerrado; Gesso; Solo.; Agriculture; Acidity; Gypsum; Phosphogypsum; Soil; Subsoil.; Savannas.
Ano: 1995
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/550796

Uso de gesso agrícola nos solos dos cerrados.
Provedor de dados: 14
Autores: SOUSA, D. M. G. de; LOBATO, E.; REIN, T. A.
Caracterização e extensão do problema da acidez nos solos dos cerrados; Alterações nas características químicas do solo com o uso do gesso agrícola; Respostas de culturas anuais; Respostas de culturas perenes; Recomendações do gesso.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Correção do solo; Brasil; Fertilization; Gesso agrícola; Subsoil acidity; Uso.; Acidez do Solo; Adubação; Cerrado; Corretivo; Enxofre; Gesso; Solo.; Acidity; Cerrado soils; Gypsum; Brazil; Phosphogypsum; Soil; Savannas; Subsoil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/554409

Recomendações técnicas para a cultura da soja no Paraná 1988/89.
Provedor de dados: 14
Autores: OCEPAR. Programa de Pesquisa (Cascavel, PR).
Aspectos da comercialização da soja; Manejo do solo; Rotação de culturas; Clima; Cultivares; População e densidade de semeadura; Épocas de semeadura; Instalção da lavoura; Controle de plantas daninhas; Manejo de pragas; Controle de doenças; Colheita; Retenção foliar ("haste verde").
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendação técnica; Planta daninha; Rotação; Cultivar; Brasil; Parana; Soybean; Technical recommendation; Cultural practice; Weed; Variety; Fertilization; Disease; Pest; Nematode; Fungus; Harvest; Seed.; Adubação Foliar; Acidez; Adubação; Bactéria; Calagem; Colheita; Época de Semeadura; Doença; Fungo; Gesso; Manejo; Nematóide; Pratica Cultural; Praga; Semente; Vírus.; Soja; Solo; Acidity; Brazil; Crop rotation; Gypsum; Liming; Soil management; Sowing date.
Ano: 1988
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/448323

Cultura do girassol: tecnologia de produção.
Provedor de dados: 14
Autores: CASTRO, C. de; CASTIGLIONI, V. B. R.; BALLA, A.
Escolha da area e preparo do solo; Correcao da acidez; Adubacao; Epoca de plantio; Plantio; Densidade; Controle de plantas daninhas; Doencas e pragas; Colheita.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Preparo; Semeadura direta; Epoca; Densidade; Planta daninha; Brasil; Sunflower; Production; Fertilization; Weed; Disease; Pest; Harvest.; Acidez; Adubação; Colheita; Doença; Girassol; Pesquisa; Praga; Semeadura; Produção; Solo.; Acidity; Density; Brazil; No-tillage; Research; Sowing date.; Soil.
Ano: 1993
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445278

Calagem e controle da acidez dos viveiros de aqüicultura.
Provedor de dados: 14
Autores: QUEIROZ, J. F. de; BOEIRA, R. C.
bitstream/item/12267/1/circular_14.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Aqüicultura; Tanque; Acidez; Calagem; Amostragem; Viveiro.; Aquaculture; Lacustrine sediments; Acidity; Liming.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/83130

Aggregated and Validated Datasets for the European Seas: The Contribution of EMODnet Chemistry
Provedor de dados: 5
Autores: Giorgetti, Alessandra; Lipizer, Marina; Molina Jack, Maria Eugenia; Holdsworth, Neil; Jensen, Hans Mose; Buga, Luminita; Sarbu, George; Iona, Athanasia; Gatti, Julie; Larsen, Martin; Fyrberg, Lotta; Østrem, Ann Kristin; Schlitzer, Reiner.
Tipo: Text
Palavras-chave: Nutrients; Oxygen; Acidity; Contaminants; Sediment; Biota; Aggregated datasets.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00663/77519/79314.pdf

Investigation on possible chemical pollution of the BouGhraa lagoon south of Tunisia by chemical wastes
Provedor de dados: 20
Autores: Farhat, F.; Ben Aoun, Z.; Chouba, L.; Hadj Ali, M. S.
La mer de BouGhrara, un milieu quasi-lagunaire de cinquante milles hectares environ, a contribué d’une manière remarquable à la production halieutique Tunisienne jusqu’au 1992  4.786 tonnes, année à partir de laquelle cette production n’a cessé de décroître (1.118 tonnes en 2002). Par ailleurs le premier projet industriel d’aquaculture marine y a également vu le jour, atteignant une production aquacole en cages flottantes de 252 tonnes en 1990. Malheureusement cette activité a cessé en 1995, après une dizaine d’années et la société  qui assurait cette production a cessé ses activités et les quelques cages ont été déplacées de la lagune vers le bassin du port de Zarzis à la recherche de conditions environnementales meilleures. Plusieurs raisons ont été...
Tipo: Journal Contribution
Palavras-chave: Chemical pollution; Depletion; Eutrophication; Lagoon fisheries; Organic matter; Pollution effects; Salinity; Temperature; Waste disposal; Acidity.
Ano: 2007
URL: http://hdl.handle.net/1834/4249

Steel slag and phosphate nutrition of corn inoculated with arbuscular mycorrhizal fungi
Provedor de dados: 86
Autores: Nunes,Anita Bueno de Camargo; Saggin Júnior,Orivaldo José; Silva,Eliane Maria Ribeiro da; Pinto,Flávio Araújo; Santos,Jessé Valentim dos; Carneiro,Marco Aurélio Carbone.
Abstract: The objective of this work was to evaluate the effect of the use of steel slag as a soil acidity corrective and of mycorrhizal fungi associated with phosphate fertilization on corn plants. The study was performed in a greenhouse, using 3-kg pots with a Typic Haplorthox, in a 4x5x2 factorial arrangement, with four acidity correction treatments (C1, correction with dolomitic limestone at a dose of 4 Mg ha-1; C2, correction with steel slag at a dose of 4 Mg ha-1; C3, correction with a 1:1 mixture of 2 Mg ha-1 dolomitic limestone and 2 Mg ha-1 steel slag; and C4, control, without pH correction), five phosphorus doses (0, 42, 95, 213, and 480 mg dm-3), and the presence or absence of two arbuscular mycorrhizal fungi (Rhizophagus clarus and Gigaspora...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Acidity; Limestone; Root colonization; Symbiosis.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000103300

Fruit size, mineral composition and quality of trickle-irrigated tomatoes as affected by potassium rates
Provedor de dados: 86
Autores: Fontes,Paulo Cezar Rezende; Sampaio,Regynaldo Arruda; Finger,Fernando Luiz.
An experiment was conducted to determine the fruit size, mineral composition and quality of trickle-irrigated tomatoes as affected by potassium fertilizer rates. Six potassium (K) rates were applied as KCl, corresponding to 0, 48.4, 118.6, 188.8, 259.0 and 399.4 kg ha-1, with four replicates, following a randomized block design. Quadratic responses to K rates were observed for double extra large (diameter &gt; 60 mm), extra large (56 to 60 mm) and large (52 to 56 mm) fruit yields. Maximum yields of these classes were achieved with K rates of 116, 190 and 233 kg ha-1, respectively. Fruit dry matter, phosphorus, sulfur and magnesium contents were not affected by K rates, but nitrate and K contents showed significant increments as K rates were increased....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lycopersicon esculentum; Lycopene; Soluble solids; Acidity.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2000000100003

Chemical changes in argisols under irrigated grape production in the central São Francisco river valley, Brazil
Provedor de dados: 90
Autores: Heck,R. J.; Tiessen,H.; Santos,M. C.; Salcedo,I. H.; Alves,R. J. T.
This study compares the chemical composition of the solution and exchange complex of soil in a 3-year-old irrigated vineyard (Vitis vinifera L., Red Globe cultivar) with that of adjacent clearing in the native hyperxerophyllic 'caatinga' vegetation. The soils are classified as Plinthic Eutrophic Red-Yellow Argisol; according to Soil Taxonomy they are isohyperthermic Plinthustalfs. Detailed physiographic characterization revealed an impermeable gravel and cobble covering the crystalline rocks; the relief of this layer was more undulating than the level surface. Significant higher concentrations of extractable Na, K, Mg and Ca were observed within the vineyard. Lower soil acidity, higher Ca/Mg ratios, as well as lower sodium adsorption and Na/K ratios...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vineyard; Physiography; Moisture content; Exchangeable cations; Electrical conductivity; Soluble cations; Sodicity; Acidity.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832002000100020

Dynamics of ammonium and pH in the solution of soils with different salinity levels, growing irrigated rice
Provedor de dados: 90
Autores: Carmona,Felipe de Campos; Anghinoni,Ibanor; Cao,Eduardo Giacomelli.
Rice in Rio Grande do Sul State is grown mostly under flooding, which induces a series of chemical, physical and biological changes in the root environment. These changes, combined with the presence of rice plants, affect the availability of exchangeable ammonium (NH4+) and pH of soil solution, whereas the dynamics of both variables can be influenced by soil salinity, a common problem in the coastal region. This study was conducted to evaluate the dynamics of exchangeable NH4+ and pH in the soil solution, and their relation in the solution of Albaqualf soils with different salinity levels, under rice. Four field experiments were conducted with soils with exchangeable Na percentage (ESP) of 5.6, 9.0, 21.2, and 32.7 %. Prior to flooding, soil solution...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen; Acidity; Exchangeable sodium percentage.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000200009

Water-soluble nutrients in aerial plant parts of peanut and white oat as affected by lime and gypsum application
Provedor de dados: 90
Autores: Marques,Rúbia Renata; Crusciol,Carlos Alexandre Costa; Castro,Gustavo Spadotti Amaral; Perim,Lucas.
Lime and gypsum influence nutrient availability and uptake, as well as the content of organic acids in the aerial plant parts. These changes, quantified by plant analysis of soluble nutrients, may potentiate the effect of soil amendment, ensuring the sustainability of the no-tillage system. In this sense the effect of lime and gypsum surface application on the content of water-soluble nutrients in peanut and oat residues was evaluated. The experiment was conducted on an Oxisol in Botucatu (SP) in the growing seasons 2004/2005 and 2005/2006. It was arranged in a randomized block design in split plots with four replications, where lime rates represented the plots and presence or absence of gypsum application the subplots. Peanut was grown in summer and white...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant residues; Acidity; Nutrient mobility.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832011000200020

Post-harvest characterization of ‘Prata’ banana cultivar grown under different nitrogen and potassium fertilization
Provedor de dados: 94
Autores: Nomura,Edson Shigueaki; Cuquel,Francine Lorena; Damatto Junior,Erval Rafael; Bezerra,Daniela Peixoto; Borges,Ana Lúcia.
Abstract  There are several banana cultivars resistant to Black Sigatoka disease and to Panama disease, but due to the lack of information regarding post-harvest characteristics, many are rejected in the market. Nitrogen and potassium fertilization may help to improve the sensory characteristics of ripe banana, but there is lack of studies on its effects on banana cultivation, especially those resistant to diseases. The aim of this study was to evaluate the post-harvest characteristics of ‘Prata-Anã’, ‘BRS Platina’ and ‘PA94-01’ banana cultivars at four N and K2O fertilization levels (NK0: no fertilization, NK1: 175 and 285 kg ha-1 year-1, NK2: 350 and 570 kg ha-1 year-1, NK3: 525 and 855 kg ha-1 year-1, respectively) in three production cycles. It could...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Musa spp.; Banana; Nutrition; Acidity; Ratio.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000403001

Physical-chemical and chemical characterization of Passiflora cincinnata Mast fruits conducted in vertical shoot positioned trellis and horizontal trellises system
Provedor de dados: 94
Autores: D’abadia,Ana Claudia Alves; Costa,Ana Maria; Faleiro,Fábio Gelape; Malaquias,Juaci Vitória; Araújo,Francisco Pinheiro de.
Abstract Passiflora cincinnata Mast. or Caatinga passion fruit is widely cultivated in the northeastern semi-arid regions of Goiás, Minas Gerais, and Bahia. The system of cultivation and field management of the Passiflora species affects the physicochemical quality of its fruits. In this study, we evaluated the chemical and physico-chemical characteristics of the fruits of 2 progenies (CPEF2220 and CBAF2334) of P. cincinnata species using the vertical and horizontal trellis system. Fruits were collected from the plants at their physiological maturation stage and tested for the fruit skin color and texture and the pH, total soluble solids, titratable acidity, pulp acidity ratio, and the contents of flavonoids, anthocyanins, and polyphenols in the seedless...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flavonoids; Coloration; Polyphenols; Acidity.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000600901

Soil acidity, liming and soybean performance under no-till
Provedor de dados: 63
Autores: Caires,Eduardo Fávero; Barth,Gabriel; Garbuio,Fernando José; Churka,Susana.
The effects of soil chemical changes on soybean root growth, mineral nutrition and grain yield, as a result of surface application of lime under no-till (NT), are still under discussion. A field trial was carried out on a loamy dystrophic Typic Hapludox at Ponta Grossa, Paraná State, Brazil, using a completely randomized block design with three replicates, in a split-plot experiment. The main plots received four dolomitic lime rates applied on the surface (0, 2, 4, and 6 Mg ha-1) in July 1993. In the subplots, two dolomitic lime rates were reapplied on the surface (0 and 3 Mg ha-1) in June 2000. After nine years, liming increased pH, exchangeable Ca2+ and reduced exchangeable Al3+ as well as soil Al3+ saturation down to a 60 cm depth. Re-liming, after two...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max (L.) Merrill; Acidity; Subsoil; Root system; Nutrient.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162008000500013

Prunus hybrids rootstocks for flat peach
Provedor de dados: 63
Autores: Legua,Pilar; Pinochet,Jorge; Moreno,María Ángeles; Martínez,Juan José; Hernández,Francisca.
Peach (Prunus persica L.) is the most important stone fruit tree grown in Spain and is the second most important fruit crop in Europe. The influence of eight Prunus rootstocks (GF-677, Krymsk® 86, PADAC 97-36, PADAC 99-05, PADAC 9912-03, PADAC 0024-01, PAC 0021-01 and PAC 0022-01) on vigor, yield and fruit quality traits of 'UFO 3' flat peach cultivar was studied. The highest trunk cross sectional area was exhibited by GF-677 and the lowest by PADAC 99-05, while intermediate values were found on the other rootstocks. The highest yield efficiency was found on PADAC 99-05, PAC 0021-01, PAC 0022-01 and PADAC 0024-01 and the lowest was shown on Krymsk® 86. The fruit quality parameters measured were color, fruit and stone weights, equatorial diameter, pulp...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: SSC; Fruit weight; Rootstock; Acidity; Yield.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000100003

Effect of calcium chloride and refrigeration on the quality and organoleptic characteristics of cape gooseberry (Physalis peruviana L.)
Provedor de dados: 109
Autores: Reyes-Medina,Andrea Johana; Pinzón,Elberth Hernando; Álvarez-Herrera,Javier Giovanni.
Abstract The gooseberry is one of the exotic fruit species most important in Colombia. Calcium has been shown to be important for quality maintenance in fruits and vegetables, as it prevents a number of physiological disorders reinforce the cell walls and stabilize cellular membranes. With the aim to increase the fruit calcium concentration, a completely randomized design with four treatments was performed: a control and three applications of CaCl2 (0.5%, 1% and 2%), with four replicates, for a total of 16 experimental units (EU). The fruit was collected at maturity stage 6 according to the standard Icontec NTC 4580, completely healthy and homogeneous. The fruit was subsequently stored at 21 ± 1 ° C (RH 45%). The application of calcium in the gooseberry...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acidity; Color; Firmness; Mass loss; Perishability.
Ano: 2017
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122017000100015

Caracterização física e sensorial do café produzido nas condições topoclimáticas de Jesuitas, Paraná - DOI: 10.4025/actasciagron.v30i3.3513
Provedor de dados: 1
Autores: Dal Molin, Roberto Natal; UNIOESTE; Andreotti, Marcelo; UNESP; Reis, André Rodrigues dos; ESALQ; Furlani Junior, Enes; UNESP; Braga, Gilberto Costa; UNIOESTE; Scholz, Maria Brígida dos Santos; IAPAR.
A variação das condições climáticas interfere na formação e na maturação dos frutos, alterando suas características intrínsecas, as quais podem permitir diferentes qualidades de bebida, com potencial de produção de café especial. O objetivo deste estudo foi verificar o efeito das condições ambientais e da prática de cultivo no aspecto físico e sua conseqüência na qualidade de bebida de cafés da região de Jesuítas, Estado do Paraná. Na mesma safra em que foi realizado este estudo (2002-2003), avaliou-se a qualidade de bebida de cafés paranaenses entre os produtores nos diversos municípios cafeeiros do Estado e verificou-se que 86% das amostras apresentaram bebida classificadas como apenas “mole” e “dura”, e 14% com bebida “riada/rio”. Os resultados obtidos...
Palavras-chave: 5.01.00.00-9 Agronomia Coffea arabica; Qualidade de bebida; Acidez 5.01.03.00-8 Fitotecnia Coffea arabica; Cup quality; Acidity.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3513

THE EFFECT OF RIPENING PERIODS ON PHYSICAL, CHEMICAL AND MECHANICAL PROPERTIES OF SERVICE TREE FRUITS (Sorbus Domestica L.)
Provedor de dados: 111
Autores: Altuntaş, Ebubekír.
The effect of ripening periods on physical, chemical and mechanical properties of service tree fruits (Sorbus domestica L.) were determined. The geometric mean diameter, fruit mass, volume, surface area and fruit density of service tree fruits decreased with increase ripening periods, while, bulk density increased with ripening periods. L*, a*, b*, Chroma decreased with increase ripening periods, while hue angle increased with ripening periods respectively. The friction coefficients of service tree fruits with increase ripening periods were lower for laminate than the other surfaces. The total soluble solid content and total acidity of service tree fruits decreased at ripening period. Titratable acidity was higher in physiological maturity as compared to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ripening; Density; Color; Friction; Acidity.
Ano: 2015
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3276

Influence of processing parameters on physicochemical properties of  Iranian mulberry (Morusalba L.) molasses
Provedor de dados: 111
Autores: Basiri, Shadi.
The white mulberry is a native fruit to China. The white mulberry as a fruit with high water content and sensitive texture, is a perishable fruit with high-level waste.  To reduce the losses of the white mulberry, it used to be processed traditional dried fruit and mulberry molasses. The purpose of this study was to determine chemical and physical properties of white mulberry molasess made up of different cultivars, neutralizers and concentration methods. Two examples of cultivars were Bokhara and Khardar mulberry (local cultivars), two neutralizing compounds were white soil (traditionally special soil can be used as neutralization) and calcium carbonate, the concentration conditions were concentration under vacuum conditions and concentration under...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acidity; Concentration; Mulberry molasses; Neutralization.
Ano: 2016
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3441

Symptoms and sensitivity to chilling injury of pitahaya (Hylocereus undatus (haw.) britton &amp;amp; rose) fruits during postharvest
Provedor de dados: 115
Autores: Balois-Morales,Rosendo; Peña-Valdivia,Cecilia B.; Arroyo-Peña,V. Baruch.
Dragon fruit or pitahaya (Hylocereus undatus (Haw.) Britton &amp;amp; Rose) is an exquisite and exotic fruit with attractive aroma and flavor, and a characteristic red-skinned color. Its production and supply for regional and foreign markets is limited to its storage life. The objective of this study was to evaluate physiological alterations and sensitivity to chilling injuries during postharvest of pitahaya. Fruits harvested at the Tehuacán Valley, Puebla, México, were stored at three postharvest temperatures: 3, 7, and 11 ±1 °C, for 7, 14, and 21 d and under these conditions plus a 4 d period at 22 ±1 °C. Evaluated fruits were then contrasted with fresh fruit (control 1), and non-cold stored fruits maintained 4 d at 22 °C (control 2). Variables were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acidity; Color; Firmness; Total soluble solids; Vitamin C.
Ano: 2013
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952013000800005

Recent advances in aluminum toxicity and resistance in higher plants
Provedor de dados: 61
Autores: Vitorello,Victor Alexandre; Capaldi,Flávia Regina; Stefanuto,Vanderlei Antonio.
Aluminum toxicity is a major soil constraint to food and biomass production throughout the world. Considerable advances in the understanding of the mechanism of resistance involving exudation of organic acids have been made in recent years. However, despite intense research efforts, there are many aspects of Al toxicity that remain unclear. This article reviews the features of the chemistry of Al relevant to its toxicity followed by an examination of the mechanisms of toxicity and resistance. Emphasis, however, is given to the mechanisms of Al toxicity, since resistance has been covered recently by several reviews. Some topics which are specifically discussed in this review are: a) The possible role of cellular effects of low pH in Al toxicity, which has...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Al uptake and localization; Cell wall; Cytoskeleton; Differential sensitivity to Al; Low pH; Acidity; Plasma membrane.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202005000100011

Increase in biofilm formation by Escherichia coli under conditions that mimic the mastitic mammary gland
Provedor de dados: 65
Autores: Costa,João Carlos Miguel; Espeschit,Isis de Freitas; Pieri,Fábio Alessandro; Benjamin,Laércio Anjos; Moreira,Maria Aparecida Scatamburlo.
Bacterial biofilms are involved in the aggravation and recurrence of clinical mastitis in dairy herds. Several factors such as pH, temperature, concentration of O2 and glucose can affect their induction and growth rates. In this study, biofilm production was demonstrated by 27 Escherichia coli strains isolated from bovine mastitis at different pH values depending on the availability of glucose, mimicking conditions found in mammary glands affected by the disease. Biofilm formation was analyzed by spectrophotometric analysis in microtiter plate with 16 different culture media and by scanning electron microscopy. Biofilm formation was greater in isolates cultured under conditions associated with low glucose availability (0.5% or 1.5%) and with either an...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mammary gland; Escherichia coli; Milk; Acidity; Sugar.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000400015

Aluminum toxicity reduces the nutritional efficiency of macronutrients and micronutrients in sugarcane seedlings
Provedor de dados: 64
Autores: Borges,Carolina Eggers; Cazetta,Jairo Osvaldo; Sousa,Francisco Bruno Ferreira de; Oliveira,Kamilla Silva.
ABSTRACT Although the effects of aluminum on the content and accumulation of mineral nutrients in crops have been studied, but nothing is known about its effect on the nutritional efficiency of sugarcane. Therefore, this study aimed to evaluate the effect of aluminum toxicity on nutritional efficiency, nutrient accumulation, and growth of sugarcane seedling. Sugarcane seedlings of the genotype IACSP95-5000, obtained from one-bud mini-cuttings (3 cm), were used in the test. Seedlings were subjected to treatments in a completely randomized design, with eight Al concentrations in the nutrient solution (0, 10, 20, 30, 40, 50, 60, and 70 mg L−1) and three replicates, totaling 24 experimental units. Analyses determined the contents, accumulation, and absorption,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Use efficiency; Acidity; Accumulation; Abiotic stress; Saccharum spp.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100233