Consulta: subjectFacets:"Apple"
Registros recuperados: 33
Data/hora: 02/06/2024 04:41:33

Respuesta del manzano 'agua nueva' a distintas dosis de NPK bajo el sistema de cultivos intercalados.
Provedor de dados: 32
Autores: Salvador Martínez, Telésforo.
En los sistemas agrícolas, el suministro adecuado de nutrientes a cada especie vegetal que lo componen, es uno de los factores que define su productividad. Con el objetivo de evaluar el efecto del nitrógeno (N), fósforo (P) y potasio (K) en el crecimiento vegetativo, rendimiento y calidad de fruto del manzano ʽAgua Nueva’/M106/manzano criollo de Huejotzingo, Puebla, bajo el sistema de cultivos intercalados, se estudiaron cinco niveles de cada uno. El experimento de milpa (maíz y frijol) intercalada con árboles de manzano, inició en el año 2002 en el Campo Experimental Valle de México (CEVAMEX) del INIFAP. El presente trabajo incluyó solamente los años 2010 y 2011. Dosis intermedias de N y P y baja de K (100-40-64 g de N, P2O5 y K2O por árbol por año)...
Palavras-chave: Fertilización; Manzano; Crecimiento vegetativo; Rendimiento y calidad de fruto; Cultivos intercalados; Fertilization; Apple; Vegetative growth; Yield and fruit quality; Crop intercropping; Fruticultura; Maestría.
Ano: 2013
URL: http://hdl.handle.net/10521/2047

Evaluation of the uniformity and stability of T-DNA integration and gene expression in transgenic apple plants
Provedor de dados: 69
Autores: Flachowsky,Henryk; Riedel,Marko; Reim,Stefanie; Hanke,Magda-Viola.
The generation of transgenic apple plants relies on the molecular analysis of transgene integration and expression based on polymerase chain reaction (PCR) analysis, blotting techniques and enzymatic assays on vitro leaves of putative transgenic regenerates. In order to assess the uniformity and the stability of transfer DNA (T-DNA) integration and gene expression, we studied 26 transgenic apple lines carrying the attacin E gene from Hyalophora cecropia, the &amp;#946;-glucuronidase gene, and the nptII gene. Plants were evaluated using standard molecular techniques, such as PCR, Southern blot, reverse transcription PCR (RT-PCR) and Enzyme Linked Immunosorbent Assay (ELISA), and propagated in vitro on non-selective antibiotic-free media for four years to...
Tipo: Journal article
Palavras-chave: Agrobacterium tumefaciens; Apple; Chimeric tissue; Gene silencing; Malus domestica; T-DNA leakage.
Ano: 2008
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-34582008000100003

Chitinase activities, scab resistance, mycorrhization rates and biomass of own-rooted and grafted transgenic apple
Provedor de dados: 74
Autores: Schäfer,Tina; Hanke,Magda-Viola; Flachowsky,Henryk; König,Stephan; Peil,Andreas; Kaldorf,Michael; Polle,Andrea; Buscot,François.
This study investigated the impact of constitutively expressed Trichoderma atroviride genes encoding exochitinase nag70 or endochitinase ech42 in transgenic lines of the apple cultivar Pinova on the symbiosis with arbuscular mycorrhizal fungi (AMF). We compared the exo- and endochitinase activities of leaves and roots from non-transgenic Pinova and the transgenic lines T386 and T389. Local and systemic effects were examined using own-rooted trees and trees grafted onto rootstock M9. Scab susceptibility was also assessed in own-rooted and grafted trees. AMF root colonization was assessed microscopically in the roots of apple trees cultivated in pots with artificial substrate and inoculated with the AMF Glomus intraradices and Glomus mosseae. Own-rooted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apple; Chitinase; Mycorrhiza; Transgenic.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572012000300014

Impactos do granizo sobre o desempenho econômico e financeiro da produção de maçã em pomares protegidos com tela ou com seguro agrícola.
Provedor de dados: 14
Autores: LAZZAROTTO, J. J.; FIORAVANÇO, J. C.
O granizo é um fenômeno climático que pode ocasionar sérios impactos negativos sobre a viabilidade do cultivo da macieira. A cobertura do pomar com tela antigranizo ou a contratação de seguro agrícola são medidas que exigem aporte adicional de recursos ao sistema. Para auxiliar o produtor nesta decisão, a publicação apresenta indicadores para avaliar o desempenho econômico-financeiro da atividade frente a distintos cenários de ocorrência de granizo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Eficiência econômica; Apple; Riscos; Custos de produção; Taxa interna de retorno; Pomicultura; Tela antigranizo; Prejuízo; Cobertura; Macieira; Granizo; Clima; Mudança Climática; Maçã; Seguro Agrícola; Rentabilidade; Pomar; Clima Tropical; Apples.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1128294

Resolving the Diplodia complex on apple and other Rosaceae hosts
Provedor de dados: 16
Autores: Phillips, A.J.L.; Lopes, J.; Abdollahzadeh, J.; Bobev, S.; Alves, A.
Diplodia species are known as pathogens on many woody hosts, including fruit trees, worldwide. In this study a collection of Diplodia isolates obtained mostly from apple and other Rosaceae hosts were identified based on morphological characters and DNA sequence data from ITS and EF1-α loci. The results show that the diversity of species associated with twig and branch cankers and fruit rot of apples is larger than previously recognised. Four species were identified, namely D. seriata and D. malorum (which is here reinstated for isolates with D. mutila-like conidia). Diplodia intermedia sp. nov. is closely related to D. seriata, and D. bulgarica sp. nov. is morphologically and phylogenetically distinct from all Diplodia species reported from apples.
Tipo: Article / Letter to the editor
Palavras-chave: Apple; Black-rot; Botryosphaeriaceae; Canker; Diplodia; Phylogeny.
Ano: 2012
URL: http://www.repository.naturalis.nl/record/532333

Oviposition Behavior of Ceratitis capitata Wiedemann (Diptera: Tephritidae): Association Between Oviposition Preference and Larval Performance in Individual Females
Provedor de dados: 82
Autores: JOACHIM-BRAVO,IARA S.; FERNANDES,ODAIR A.; BORTOLI,SÉRGIO A. DE; ZUCOLOTO,FERNANDO S.
The oviposition preference and larval performance of females of Ceratitis capitata (Wiedemann) were examined. Wild or laboratory-reared females were tested for oviposition preference in relation to papaya fruit in different stages of ripeness, as well as to two different fruits: papaya and apple. The results demonstrated that both laboratory-reared and wild females preferred ripe papaya fruit compared to unripe fruit for oviposition, and that ripe papaya was the best for larval performance. When oviposition preference was tested with different fruits (papaya and apple), both wild and laboratory-reared larvae developed better in papaya. However, only wild females showed a preference for oviposition on papaya as opposed to apple. Laboratory-reared females...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Oviposition behavior; Fruitfly; Apple; Papaya.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2001000400008

Japan MRL Regulation
Provedor de dados: 31
Autores: Takagi,   Chifumi; Thornsbury,   Suzanne.
Tipo: Report
Palavras-chave: MRL; Apple; Cherry; Export; Farm Management; International relations/trade; Crop production/industries.
Ano: 2008
URL: http://purl.umn.edu/44100

The Importance of Apple attributes: A Comparison of Self-explicated and Conjoint Analysis Results
Provedor de dados: 31
Autores: Markovina,   Jerko; Kovacic,   Damir.
the goal of this article was to determine the importance of apple attributes using two research techniques – self-explicated procedure and conjoint analysis. Research was conducted on a sample of 426 consumers of apples in Zagreb, Croatia. The results of self-explicated and conjoint analysis procedures revealed differences in ranking of apple attributes regarding their importance. It is demonstrated that conjoint analysis gives more detailed results and that it is not influenced by respondents’ tendency to give socially acceptable answers. The results of conjoint analysis also give more information for the producers of apples who can use them to create a product that matches consumers’ wishes.
Tipo: Conference Paper or Presentation
Palavras-chave: Apple; Conjoint analysis; Self-explicated method; Demand and Price Analysis.
Ano: 2008
URL: http://purl.umn.edu/44401

Pesticides Residues and Trade: the Apple of Discord?
Provedor de dados: 31
Autores: Drogue,   Sophie; DeMaria,   Federica.
The impact of food safety standards on international trade has already been addressed. Generally, economists try to assess trade losses borne by exporters when importing countries impose stricter regulations. In this paper we assess the impact of the Maximum Residue Levels (MRL) of pesticides on the trade of apples and pears. Rather than focusing on a particular pesticide we take into account the entire list of substances set out by the various regulations with the aim is to understand how the similarity (or dissimilarity) of these can affect trade. Most studies assess the impact of sanitary standard regulations introducing directly in the analysis the MLR put in force in the importing country. We assume that what can be crucial is the difference in the...
Tipo: Conference Paper or Presentation
Palavras-chave: Food safety; Standards; Pesticides; MRL; Apple; Pear; Market access; Crop Production/Industries; International Relations/Trade; Q17; F13.
Ano: 2011
URL: http://purl.umn.edu/114445

THE IMPACT OF PROMOTION AND ADVERTISING: A LATENT CLASS APPROACH
Provedor de dados: 31
Autores: Richards,   Timothy J.
Typically, marketers define market segments by their demographic characteristics, assuming that these segments represent consumers with relatively homogeneous buying patterns.  A more managerially useful definition, however, groups consumers of similar behavior directly and then seeks to find demographic commonalities among them.  This study uses a latent class analysis technique to segment consumers based on their responsiveness to a set of marketing variables, finding that a multiple-segment model provides a better fit to the data, and that these segments differ significantly in their responsiveness. By targeting marketing activities to their most responsive segments, the efficiency of commodity promotion can be dramatically improved.
Tipo: Journal Article
Palavras-chave: Advertising; Apple; Demand; Latent class analysis; Multinomial logit; Segmentation; Marketing.
Ano: 2000
URL: http://purl.umn.edu/15307

A REGIONAL ECONOMETRIC MODEL OF U.S. APPLE SUPPLY AND DEMAND
Provedor de dados: 31
Autores: Roosen,   Jutta.
An econometric model of U.S. apple supply and demand is estimated  using annual data for 1971-1997.  Supply is arranged into four geographical regions, the Northwest, the Southwest, the Central, and the East.  The structural model consists of five components: supply, allocation between fresh and processed utilization, pricing, demand and net imports.  Estimated supply elasticities illustrate regional differences in growers' ability to respond to market changes.
Tipo: Working or Discussion Paper
Palavras-chave: Apple; Econometrics; Regional; Three-stage least square; Crop Production/Industries; Demand and Price Analysis.
Ano: 1999
URL: http://purl.umn.edu/18237

A REGIONAL ECONOMETRIC MODEL OF U.S. APPLE PRODUCTION
Provedor de dados: 31
Autores: Roosen,   Jutta.
A four-region econometric model of U.S. apple production and consumption is developed.  Technical progress has benefited growers in the Northwest the most, but prices there are much lower in comparison to other regions.  Estimated elasticities are used to estimate national and regional welfare impacts of pesticide cancellations.
Tipo: Conference Paper or Presentation
Palavras-chave: Apple; Econometrics; Regional; Three-stage least square; Crop Production/Industries; Research Methods/ Statistical Methods.
Ano: 1999
URL: http://purl.umn.edu/21663

Tariff Equivalent of Technical Barriers to Trade with Imperfect Substitution and Trade Costs
Provedor de dados: 31
Autores: Yue,   Chengyan; Beghin,   John C.; Jensen,   Helen H.
The price-wedge method yields a tariff-equivalent estimate of technical barriers to trade (TBT). An extension of this method accounts for imperfect substitution between domestic and imported goods and incorporates recent findings on trade costs. We explore the sensitivity of this revamped TBT estimate to its key determinants (substitution elasticity, preference for home good, and trade cost). We use the augmented approach to investigate the ongoing US-Japan apple trade dispute and find that removing the Japanese TBT would yield limited export gains to the United States. We then draw policy implications of our findings.
Tipo: Working or Discussion Paper
Palavras-chave: Apple; Japan; SPS; TBT; Technical barriers to trade; Trade cost; Trade dispute; WTO; Resource /Energy Economics and Policy.
Ano: 2005
URL: http://purl.umn.edu/18338

Pre-isolation, isolation and regeneration protoplasts from leaf mesophyll of in vivo Malus domestica ‘Anna’ cv.
Provedor de dados: 94
Autores: El-Gioushy,Sherif Fathy Eid El-Sayed; Kareem,Abdul; Baiea,Mohamed Hemdan Mohamed.
Abstract  To isolate protoplast, a pre-treatment was completed with the order to reduce and identify the phenolic contents round the year to encourage the isolation of protoplasts. Protoplasts from in vivo mesophyll leaves of apple cultivar “Anna” was isolated from 15 days old leaves by plasmolying in medium containing 90 g L-1 mannitol for half hour, then 130 g L-1 mannitol for half hour. Then using enzymatic mixture involving (1.5% cellulase + 0.5% pectianase + 1.5% Macrozyme) Prior to isolation. Anyhow, diverse factors, for example, Osmotic pressure, incubation period, sieve pore size, centrifugation period and hormonal balance was estimated using the techniques for isolation. The quantity of cells was computed as the quantity of cells per square on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apple; Hybridization; Cellulase; Pectianase; Macrozyme.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000400803

The potential of different fruit species as food for Harmonia axyridis (Pallas, 1773) (Coleoptera: Coccinellidae)
Provedor de dados: 94
Autores: Guedes,Camila Fediuk de Castro; Almeida,Lúcia Massutti de.
Harmonia axyridis was detected for the first time in Brazil in 2002. Since then, it has been recorded from the South to the Midwest of the country. Until now, almost all the registered cases were associated with the presence of aphids, its preferred source of food. Due to the occurrence of this species in areas of fruit growing in the South and Southeast of Brazil, the aim of this study was to analyze the preference and use of three different cultivars of fruit. The tests were set at 25ºC ± 1ºC, RH 70% ± 10%, and in a photophase of 12 h and with apples (Gala and Fuji), grapes (Niágara and Rubi), and pears (Williams and Asian). In the undamaged fruit experiment, the insects did not cause any noticeable damage. In the damaged and undamaged fruit experiment,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apple; Food preference; Grape; Invasive species; Pear.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000400013

Patulin in food: state-of-the-art and analytical trends
Provedor de dados: 94
Autores: Silva,Sandra Jussara Nunes da; Schuch,Paula Zilles; Bernardi,Carmem Ronise; Vainstein,Marilene Henning; Jablonski,André; Bender,Renar João.
Patulin is a mycotoxin produced by several fungal species of the genera Penicillium and Aspergillus, found on several fruit species and, remarkably, in apples and apple products. Patulin has a broad spectrum of toxicity, including carcinogenicity and teratogenicity in animals. Due to the stability of the molecule, considerable amounts of patulin still remain in apple products after processing. This paper reviews different analytical methods for patulin determination and methods to reduce levels of patulin in apple products as well.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Micotoxins; Analytical methods; Apple.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452007000200043

EFFECTS OF THIDIAZURON (TDZ) ON FRUITING OF TEMPERATE TREE FRUITS
Provedor de dados: 94
Autores: PETRI,JOSÉ LUÍS; SCHUCK,ENIO; LEITE,GABRIEL BERENHAUSER.
Thidiazuron (TDZ) is a phenylurea like citokinin on cell division fruit growth and fruit shape in some deciduous fruit trees. The effects of TDZ applied during flowering on apple cultivars 'Gala' and 'Fuji" were evaluated during seven growing seasons with annual applications on the same trees. The effects on pear and kiwi fruit trees were also evaluated. Every year, TDZ significantly increased fruit set and fruit weight on apple trees. The seven-year average of the fruit set from TDZ at 10 mg.L-1 was 112.7% while the control was only 51.3%. TDZ did not affect the number of clusters. The fruit weight increased 7.0% and 18.3% when the trees were sprayed with TDZ at 10 mg.L-1 and 5 mg.L-1, respectively. TDZ also increased fruit yield per tree by 28.7% and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: TDZ; Fruit set; Fruit weight; Seed number; Calcium; Apple; Pear; Kiwi.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452001000300012

อิทธิพลของสารพาโคลบิวทราโซลที่มีต่อการเจริญเติบโต การออกดอก การติดผล ผลผลิต และคุณภาพของผลแอปเปิลพันธุ์ Anna และ Ein Shemer
Provedor de dados: 106
Autores: Phichit Sripinta.
Thesis (M.Sc. in Agriculture)
Tipo: PhysicalObject
Palavras-chave: Apple; Malus domestica; Anna; Ein Shemer; Paclobutrozol; Growth; Flowering; Fruit setting; Yield; Fruit quality; Royal Ang Khang Station; Chiang Mai province; แอปเปิล; พันธุ์; สารพาโคลบิวทราโซล; สารชะลอการเจิรญเติบโต; การเจริญเติบโต; การออกดอก; การติดผล; ผลผลิต; คุณภาพผล; สถานีเกษตรหลวงอ่างขาง; จ.เชียงใหม่.
Ano: 1990
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5512

การเปลี่ยนแปลงปริมาณคาร์โบโฮเดรทและการพัฒนาดอกในกิ่งตาแอปเปิลพันธุ์ Anna และ Rome Beauty ที่เก็บรักษาภายใต้อุณหภูมิที่ต่างกัน
Provedor de dados: 106
Autores: Prasit Watanowongvijit.
Thesis (M.Sc. in Agriculture)
Tipo: PhysicalObject
Palavras-chave: Apple; Malus sylvestris Mill; Anna; Rome Beauty; Carbohydrate contents; Floral development; Scions; Keep; Temperatures; Royal Ang Khang Station; Chiang Mai province; แอปเปิล; พันธุ์; ปริมาณคาร์โบไฮเดรต; การพัฒนาดอก; กิ่งตา; การเก็บรักษา; อุณหภูมิ; สถานีเกษตรหลวงอ่างขาง; จ.เชียงใหม่.
Ano: 1982
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5476

Influence of processing on the quality of pomaceas juice (Pyrus communis and Malus domestica) - doi: 10.4025/actasciagron.v35i1.15360
Provedor de dados: 1
Autores: Rocha, Andressa Schaia; Universidade Estadual de Ponta Grossa; Zielinski, Acácio Antonio Ferreira; Universidade Estadual de Ponta Grossa; Ávila, Suelen; Universidade Estadual de Ponta Grossa; Nogueira, Alessandro; Universidade Estadual de Ponta Grossa; Wosiacki, Gilvan; Universidade Estadual de Ponta Grossa.
Pear (Pyrus communis), which is intensively cultivated in subtropical and temperate climates, has recently attained the 3rd position in the world fruit ranking, just after apple and peach. This fruit exhibits certain similarities to apple with respect to the pulp, but pear is used as a raw material only when apple is no longer available, which suggests that the same technology line may be utilized. Both fruits do have processing compatibilities, and it is permissible to add pear juice to apple juice at levels defined by law. Quality indicators, such as pH, total acidity, total phenolic compounds and antioxidant activity were used. The simple sugar analysis clearly defines fructose as the main component in pear juice, and lower figures were found when...
Tipo: Research of laboratory
Palavras-chave: Ciências Agrárias - Ciência e Tecnologia de Alimentos 5.07.00.00-6 juice processing; Apple; Pear; Quality profile Influence of processing of pomaceas juice processing; Apple; Pear; Quality profile.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/15360

Effect of growth regulators application on the quality maintenance of 'Brookfield' apples
Provedor de dados: 53
Autores: Brackmann,Auri; Thewes,Fabio Rodrigo; Santos,Luana Ferreira dos; Machado,Eduardo Perkovski; Ludwig,Vagner; Artmann,Líniker da Silva.
AbstractThe main goal of the present study was to elucidate the effect of growth regulators at harvest and postharvest quality of 'Brookfield' apples stored under controlled atmosphere through a multivariate approach. Thus, an experiment with two steps (field and storage) was carried out. The treatments in field were applied with an output of 1,000 L ha–1 of water. The following treatments were tested: Control: only water application; AVG (aminoethoxyvinylglycine): 0.83 kg ha–1 of Retain® applied 30 days before harvest (BH); NAA (naphthalene acetic acid): 40g ha–1of naphthalene acetic acid applied 7 days BH; Ethephon: 2.0 L ha–1 of Ethrel® applied 10 days BH; 1-MCP: 0.625µL L–1 of 1-MCP (1-methylcyclopropene): applied during postharvest (storage); LE (low...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Apple; Growth regulators; Quality maintenance; Storage.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052015000400453

Osmo-dehydrated functional product containing fructo-oligosaccharides: physical, chemical and sensorial characteristics
Provedor de dados: 52
Autores: Egea,Mariana Buranelo; Borsato,Dionísio; Silva,Rui Sérgio dos Santos Ferreira da; Yamashita,Fabio.
The objective of the present study was to develop a functional product from the osmo-dehydrated Fuji apple incorporating FOS with acceptable physical, chemical and sensorial characteristics and potential for commercial-scale production. Some treatments were discarded due to texture and water activity that did not reach the desired quality parameters. The products submitted to the osmo-dehydration treatments presented a greater vitamin C loss. All the treatments obtained sensory scores of 6 in a 9 points scale for all the attributes, except the crispness, indicating good acceptance. The sensory scores and incorporated FOS quantities indicated that the osmo-dehydrated apple products have potential for commercial-scale production.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sensory analysis; Functional product; Apple; Combined conservation methods.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000600017

Phenotypic Diversity of Apple (Malus sp.) Germplasm in South Serbia
Provedor de dados: 52
Autores: Mratinić,Evica; Akšić,Milica Fotirić.
To determine the overall degree of polymorphism, detect similarities among the accessions and collect highly valued genotypes of native apples, 21 characters of 18 autochthonous apple cultivars were studied for three years. Particular individual accessions were selected from the south region of Serbia according to economically valuable characters and tested in situ. Agronomic evaluation of germplasm accessions revealed considerable diversity among different accessions for all the characters studied. The analysis of variance revealed significant differences among the accessions and among years for some characters as well. Cluster analysis distinguished Malus sp. accessions into three distinct groups. Despite of the significant differences among the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apple; Cluster analysis; Diversity; Genetic resources.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000300004

Extraction model of low methoxyl pectin from apple pomace effects of acid concentration and time on the process and the product
Provedor de dados: 52
Autores: Fertonani,Heloísa Cristina Ramos; Scabio,Ardalla; Carneiro,Eliana Beleski Borba; Schemim,Maria Helene Canteri; Nogueira,Alessandro; Wosiacki,Gilvan.
In Brazil, one of the top apple producing countries in the world, apple processing is an increasing activity, with pomace as the main by-product. To extract pectin from pomace, factors affecting process and product should be studied for optimization. A model to produce LMP directly from dried apple pomace was established observing the effects of HNO3 concentration and the time of reaction at 97ºC, analyzed from a statistical and practical point of view. The model for gravimetric yield (R² =0.9834) predicts the highest value of 20.07 g/100 g (126 mM; 14.07 min) of a pectin with a degree of esterification of 48.49%. The model for degree of esterification of extracted pectin (R²= 0.9797) predicts the lowest value of 43.73% (200 mM; 10.07 min) with a yield of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apple; Pectin; Extraction; LMP; Nitric acid.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100023

Morphological and physiological photon flux influence under in vitro culture of apple shoots
Provedor de dados: 52
Autores: Zanandrea,Ilisandra; Bacarin,Marcos Antonio; Braga,Eugenia Jacira Bolacel; Bianchi,Valmor João; Peters,José Antonio.
The aim of the present study was to evaluate the growth and development of apple rootstock shoots submitted to different photon flux densities (7, 14, 21 and 60 µmol m-2 s-1) and three culture media. The best photon flux for maximizing growth, number of shoots and leaves was 14 µmol m-2 s-1, which also resulted in the highest values of chloroplastic pigments. On the other hand, the highest photon flux (60 µmol m-2 s-1) decreased significantly these parameters. Medium with reduced sucrose concentration did not affect the analyzed parameters, enabling an efficient multiplication of the cultivar with only 1% of sucrose.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mallus; Apple; Sucrose; Photon flux density; Culture medium.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500005

Influence of ethanol concentration, addition of spices extract, and level of sweetness on physico-chemical characteristics and sensory quality of apple vermouth
Provedor de dados: 52
Autores: Joshi,Vinod K.; Sandhu,Danwant K.
The composition of apple base wine was found to be suitable for conversion into vermouth. The spices extract contained more TSS, tannins, esters, volatile acid but lower titrable acid than apple base wine. To optimize and develop apple vermouth with different ethanol concentrations (12%, 15%, 18%), sugar content (4%, 8%) and spices extract (2.5% and 5.0%) was prepared and was evaluated. Significant differences in physico-chemical characteristics and sensory quality amongst the vermouths having different levels of alcohol, sugar and spices extract were noted. Generally, increasing ethanol content decreased titrable acidity, tannins, macroelements and colour units while micro-elements, viscosity and total esters were increased. Increased sugar level affected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apple; Vermouth; Ethanol spices extract; Sweetness; Esters; Quality; Base wine; Mineral; Sensory.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000500015

Fermentation process for production of apple-based kefir vinegar: microbiological, chemical and sensory analysis
Provedor de dados: 58
Autores: Viana,Roberta Oliveira; Magalhães-Guedes,Karina Teixeira; Braga Jr.,Roberto Alves; Dias,Disney Ribeiro; Schwan,Rosane Freitas.
Abstract The aim of this study was to develop a kefir apple-based vinegar and evaluate this fermentation process using new methodology with Biospeckle Laser. Brazilian kefir grains were inoculated in apple must for vinegar production. In this study, the microbial community present in kefir, and correspondent vinegar, was investigated using Matrix Assisted Laser Desorption/Ionization - Time of Flight Mass Spectrometry (MALDI-TOF MS) technique. Saccharomyces cerevisiae, Lactobacillus paracasei, Lactobacillus plantarum, Acetobacter pasteurianus and Acetobacter syzygii were the microbial species identified. S. cerevisiae, L. plantarum, A. pasteurianus and A. syzygii were found in smaller quantities at the beginning of the alcoholic fermentation, but were found...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Yeast; Saccharomyces; Lactobacillus; Apple; MALDI-TOF; Biospeckle Laser; Vinegar.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000300592

Patulin accumulation in apples during storage by Penicillium expansum and Penicillium griseofulvum strains
Provedor de dados: 58
Autores: Welke,Juliane Elisa; Hoeltz,Michele; Dottori,Horacio Alberto; Noll,Isa Beatriz.
A part of apples destined to juice production is generally of poor quality. Apples from cold storage or recently harvest (ground harvested or low quality apples) are stored under ambient conditions until they are processed. Since Penicillium expansum and P. griseofulvum are the principal fungal species isolated from stored apples in Brazil, the objective of this study was to investigate the ability of these strains to produce patulin in apples and report the consequences of this type of storage in loss of quality. The toxin was quantified using thin layer chromatography and charge-coupled device camera (TLC-CCD). The rate and quantities that P. expansum and P. griseofulvum can grow and produce patulin are highly dependent on the fungal strain and time....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Patulin; Apple; Penicillium expansum; Penicillium griseofulvum.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822011000100021

Sensitivity of Venturia inaequalis Chilean Isolates to Difenoconazole, Fenarimol, Mancozeb, and Pyrimethanil
Provedor de dados: 117
Autores: Henríquez S,Jose Luis; Sarmiento V,Oliver; Alarcón C,Paula.
Apple scab (Venturia inaequalis) is the most important disease in Chilean apple (Malus domestica Borkh.) orchards where fungicide management is the main tool to control disease. Sensitivity tests to difenoconazole, fenarimol, mancozeb, and pyrimethanil fungicides were conducted on V. inaequalis wild isolates to construct local baseline sensitivity distributions, and compare them with a collection of isolates from seven different commercial orchards with no evidence of practical resistance. In vitro assays were conducted and sensitivity was measured as inhibition of mycelial growth (difenoconazole, fenarimol, pyrimethanil) or conidial germination (mancozeb). Departure from the baseline distribution to less sensitivity was found for difenoconazole,...
Tipo: Journal article
Palavras-chave: Apple; Apple scab; Fungicides; DMI fungicides; Dithiocarbamates; Anilinopyrimidines.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000100005

Advances in Apple Transformation Technology to Confer Resistance to Fungal Diseases in Apple Crops: A Chilean Perspective
Provedor de dados: 117
Autores: Polanco,Víctor; Paredes,Mario; Becerra,Viviana; Pérez,Eduardo.
Apple (Malus domestica Borkh.) is one of the most consumed fruit in the world. Genetic transformation is a key process to sustain this demand by permitting the potential enhancement of existing cultivars as well as the development of new cultivars resistant to pests, diseases, and storage problems that occur in the major production areas. This review summarizes the advances of genetic engineering applied to the development of resistant apple cultivars to fungus disease, with particular attention in the generation of apples resistant to Venturia inaequalis (Cooke) G.Winter, the main phytosanitary problem that affects apple crops in Chile.
Tipo: Journal article
Palavras-chave: Apple; Fungal disease; Transgenic; Cisgenesis.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392010000200013

Extracción de pectina a partir de manzana (Malus pumila), cv. Pink Lady
Provedor de dados: 118
Autores: Loyola,Nelson; Pavéz,Paula; Lillo,Sergio.
The present study extracted pectin from Pink Lady apples (Malus pumila), which present at physiological maturity an average 50% of red-color coverage, to assess whether this variety is characterized by a high (HM) or low methoxyl value (LM). The raw materials were obtained from the Marengo farm, Los Niches, Curicó province, in the south-central region of Chile. Acid hydrolysis was used and the material was then subjected to sensory analysis, evaluating the organoleptic characteristics of pectin. The pectin was extracted with citric acid, which was tested under three pH conditions (2.5, 3.0 and 3.5, the latter corresponding to the natural pH of apples) for 60 and 90 min and subjected to a constant temperature of 90 °C. The degree of esterification (DE) of...
Tipo: Journal article
Palavras-chave: Apple; Pectin; Esterification; Sensory analysis.
Ano: 2011
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202011000300012

Effect of methyl jasmonate treatments on the bioactive compounds and physicochemical quality of 'Fuji' apples
Provedor de dados: 118
Autores: Öztürk,Burhan; Altuntas,Ebubekir; Yildiz,Kenan; Ozkan,Yakup; Saracoglu,Onur.
Recently, plant growth regulators have been used for various purposes in apples. Methyl jasmonate (MeJA) has significant effects on the physiology, postharvest biology, processing, and chemical composition of apples. In the present study, the effects of MeJAMeJa treatments on the physicochemical quality and bioactive compounds (total antioxidant activity, total phenolics, and total anthocyanins) of 'Fuji' apples were investigated. The following doses of MeJa were used: 0 (control); 1; 120; 2,240; and 4,480 mg L-1. The highest geometric mean diameter, fruit mass, flesh firmness and skin thickness were obtained from the 2,240 mg L-1 MeJA treatment. Fruits harvested from control trees exhibited the highest total soluble solids content (TSSC) and pH, whereas...
Tipo: Journal article
Palavras-chave: Apple; Antioxidant; Color; Firmness; Methyl jasmonate; Phenolics.
Ano: 2013
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202013000100018

Body mass and wing geometric morphology of the codling moth (Lepidoptera: Tortricidae) according to sex, location and host plant in the region of Maule, Chile
Provedor de dados: 118
Autores: Torres,Fabiola; Rodríguez,Marcela A; Lavandero,Blas; Fuentes-Contreras,Eduardo.
Codling moth, Cydia pomonella (L.) (Lepidoptera: Tortricidae), is the key pest of apple and walnut production worldwide. Among other variables, successful management of this pest is dependent on adult dispersal at the local scale. Body mass and wing geometric morphology were evaluated on female and male codling moth adults collected from apple and walnut trees in three localities of the Region of Maule. Codling moth adults were obtained by rearing diapausing larvae collected from the field. Newly emerged adults were killed, and the total dry weight, thorax weight and abdomen weight were calculated. The wings were cleared and mounted for morphometric analyses: 15 and 11 characteristics of the fore and hind wings, respectively, were measured, including the...
Tipo: Journal article
Palavras-chave: Apple; Aspect ratio; Cydia pomonella; Landmark-analysis; MorphoJ; Walnut; Wing loading.
Ano: 2015
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000300008