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Registros recuperados: 74
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A REGIONAL ECONOMETRIC MODEL OF U.S. APPLE PRODUCTION AgEcon
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
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A REGIONAL ECONOMETRIC MODEL OF U.S. APPLE SUPPLY AND DEMAND AgEcon
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
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Advances in Apple Transformation Technology to Confer Resistance to Fungal Diseases in Apple Crops: A Chilean Perspective Chilean J. Agric. Res.
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
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Advances on apple production under semiarid climate: N fertigation Repositório Alice
MIRANDA, J. M. de S.; CAVALCANTE, I. H. L.; OLIVEIRA, I. V. de M.; LOPES, P. R. C..
The fertilizing management for apple tree is essential, especially for nitrogen, one of the most important nutrients affecting fruit yield. Thus, an experiment was conducted in 2012 and 2013 to evaluate the fruit production, yield and leaf chlorophyll of ?Princesa? and ?Eva? apples as a function of nitrogen fertigation under Brazilian semiarid conditions. The experimental design consisted of randomised blocks, with treatments distributed in a factorial arrangement 2 x 4, corresponding to apple cultivars (Eva and Princesa); and nitrogen doses (160, 120, 80 and 40 kg of N ha-1), with four replications and three plants. Calcium nitrate was used as nitrogen source (15.5% of N) with applications twice a week during 40 days, reaching 12 fertilizing performances...
Tipo: Artigo de periódico Palavras-chave: Apple; Fruit production.; Maçã; Irrigação; Fertirrigação; Adubação; Malus Domestica; Nitrogênio..
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1049618
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Apple biological and physiological disorders in the orchard and in postharvest according to production system. Repositório Alice
MARTINS, C. R.; HOFFMANN, A.; ROMBALDI, C. V.; FARIAS, R. de; TEODORO, A. V..
The study aimed to evaluate the incidence of biological and physiological disorders in the field and postharvested apples cvs. Gala, Fuji and Catarina grown in four production systems: conventional, organic transition, integrated and organic. Apples were evaluated for damages related to biological and physiological disorders in the orchard and after harvest. The greatest damages were attributed to pests, especially Anastrepha fraterculus in the organic system and Grapholita molesta in the organic transition. Apples produced in organic orchards had higher damage levels caused by postharvest physiological disorders than those grown in other production systems. For apples becoming from organic orchards most of the damage was due to lenticels breakdown and...
Tipo: Artigo de periódico Palavras-chave: Apple; Production sistems.; Maçã; Sistema de Produção..
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/968408
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Apple exytract prevent DNA damage on human fibroblasts. Repositório Alice
VIZZOTTO, M.; KROLOW, A. C. R..
Tipo: Parte de livro Palavras-chave: Apple.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/932254
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Apple phenology in subtropical climate conditions. Repositório Alice
PETRI, J. L.; HAWERROTH, F. J.; LEITE, G. B.; COUTO, M.; FRANCESCATTO, P..
Tipo: Separatas Palavras-chave: Apple; Subtropical climate; Clima subtropical.; Maçã..
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/925061
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Biotechnology and crop protection in Brazil. Repositório Alice
CAMPANHOLA, C.; RODRIGUES, G. S.; BETTIOL, W..
Tipo: Parte de livro Palavras-chave: Productivity; Pesticide; Insect pest; Plant pathogen; Genetic control; Soybean; Tomato; Rubber tree; Coconut; Apple; Strawberry; Cana-de-açúcar; Agrotóxico; Alfafa; Agricultura; Arroz; Banana; Coco; Controle Biológico; Controle Genético; Erva Daninha; Fumo; Maçã; Morango; Praga de Planta; Produtividade; Seringueira; Soja; Alfalfa; Agriculture; Biological control; Rice; Sugarcane; Tobacco; Weed control.
Ano: 1998 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/13013
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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 Ciencia e Investigación Agraria
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
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Characterization and genetic variability of coat protein genes of Apple chlorotic leaf spot virus isolates from southern Brazil. Repositório Alice
NICKEL, O.; SILVA, F. N; FAJARDO, T. V. M.; GORAYEB, E. S..
Apple chlorotic leaf spot virus(ACLSV) infects temperate rosaceous fruit trees worldwide and causes a wide range of diseases that are economically highly damaging. This study was carried out to analyze genetic variability of regional ACLSV isolates and compare it with ACLSV isolates from other parts of the world. Nineteen amplicons of ACLSV, corresponding to the coat protein (CP) gene of isolates from apple, plum, and nectarine, from two states in southern Brazil, have been analyzed for genetic variation and compared phylogenetically among themselves and with other sequences available in GenBank. Sequences identities among complete CP genes of these isolates ranged from 87.5 to 100% and 92.2 to 100% at the nucleotide (nt) and the deduced amino acid (daa)...
Tipo: Artigo de periódico Palavras-chave: Molecular characterization; Recombination; Selection; Temperate rosaceous fruit trees; ACLSV (Apple chlorotic leaf spot virus); Apple; Variability; Phylogeny; Genetic recombination.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1080993
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Chill requirement and budburst uniformity on cultivar maxigala grafted on different rootstocks. Repositório Alice
MACEDO, T. A. de; MICHELON, M. F.; CARMINATTI, J. F.; GRILO, L.; RUFATO, A. de R.; RUFATO, L.; ROBINSON, T. L..
Tipo: Separatas Palavras-chave: Malus domestica B; Chill hours; CG Series; Marubakaido; Interstock; MaxiGala; Apple.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1053873
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Chitinase activities, scab resistance, mycorrhization rates and biomass of own-rooted and grafted transgenic apple Genet. Mol. Biol.
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
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Comparison of two apple planting systems regarding honey bee pollination. Repositório Alice
RAMOS, J. D.; NUNES-SILVA, P.; WITTER, S.; BOTTON, M.; BLOCHTEIN, B..
Tipo: Separatas Palavras-chave: Honey bee; Apple; Planting system.; Pollination..
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1027389
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Controle biologico classico de patogenos de frutos no Brasil- situacao atual. Repositório Alice
TAVARES, S. C. C. de H..
O controle de fitopatogenos em frutos e possivel mediante algumas medidas que podem ser somadas ao controle biologico como uma alternativa, a fim de minimizar i impacto no ambiente e na saude humana, bem como na reducao de custos, quando comparado, por exemplo, ao controle quimico. Apesar da existencia de trabalhos com controle biologico de doencas de plantas no Brasil desde a decada de 30, os estudos em biocontrole de patogenos de frutos tem enfase nos ultimos 10 anos. Contudo, ainda se realiza uma grande percentagem a nivel de laboratorio (Bettiol, 1996). Com o objetivo de conhecer melhor a situacao de controle biologico dos patogenos de frutos de expressao nas culturas de importancia socio-economica no Brasil, levantou-se para este mesa redonda alguns...
Tipo: Parte de livro Palavras-chave: Patogen; Fruit; Postharvest; Apple; Peach; Papaya; Mango; Grape; Barbados cherry; West indian cherry; Strawberry; Yam; Tomato.; Acerola; Controle Biológico; Fruto; Manga; Inhame; Maçã; Mamão; Morango; Pimentão; Pós-Colheita; Patógeno; Pêssego; Uva.; Tomate; Biological control..
Ano: 1996 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/133515
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Diagnosis of directed pollination services in apple orchards in Brazil. Repositório Alice
ROSA, J. M. da; ARIOLI, C. J.; BLOCHTEIN, B.; AGOSTINETTO, L.; GRUTZMACHER, A. D.; BOTTON, M..
The pollination services performed by Apis mellifera are essential for the high-quality apple production. The aim of this study was to obtain information about the pollination services used in the municipalities of Vacaria-RS e São Joaquim-SC, the main apple-producing regions in Brazil. Semi-structured interviews were conducted with apple growers and technicians responsible for the orchards during 2013 and 2015. The obtained information was: a) cropping systems; b) use of pollination services; c) number of hives per hectare during flowering; d) renting value of hives; e) mortality of colonies; f) agrochemicals used on flowering; g) presence of native bees on flowering. In Vacaria and São Joaquim, respectively, 70% and 68.6% of the apple growers use the...
Tipo: Artigo de periódico Palavras-chave: Pollination diagnosis; Diagnóstico da polinização; Pollination services; Serviços de polinização; Macieira; Apple; Malus domestica; Maçã; Apis Mellifera; Interviews.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1090668
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Diversificação da fruticultura irrigada no Semiárido: perspectivas de mercado para a maçã. Repositório Alice
ARAÚJO JÚNIOR, J. N. de; LIMA, J. R. F. de; ARAUJO, J. L. P.; LOPES, P. R. C..
O Vale do Submédio do São Francisco é uma região de grande relevância no cenário nacional na produção de fruticultura irrigada. No entanto, a concentração na produção das culturas de manga e uva ocasionam uma vulnerabilidade na economia local devido as variações de mercado. Pesquisas recentes estão mostrando que é possível produzir maçã em áreas semiáridas com irrigação. Isto faz com que seja necessário gerar informações de mercado que possam contribuir com o produtor na tomada de decisão sobre investir na cultura. Assim, esta pesquisa teve por objetivo analisar as taxas geométricas de crescimento das variáveis produção, exportações e consumo de maçã. A produção mundial de maçã, entre 2003 e 2011, cresceu a uma taxa de 2,94% a.a. Neste mesmo período, as...
Tipo: Parte de livro Palavras-chave: Diversificação; Concentração; Vulnerabilidade; Taxa anual de crescimento; Fruticultura irrigada; Apple; Irrigated fruticulture.; Maçã; Fruta; Mercado; Economia; Exportação; Preço Medio; Produção..
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1022347
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Effect of gala apples (Malus domestica Borkh) on lipidemia of hyperlipidemic rats Ciênc. Tecnol. Aliment.
Salgado,Jocelem Mastrodi; Curte,Fabiana; Mansi,Débora Niero.
A healthy life style and a balanced diet, associated with a high fruit and vegetable intake, are linked to good health and the prevention of diseases. Apples contain bioactive compounds that help in the prevention and control of hyperlipidemia. One of the Public Health concerns in Brazil is to reduce cardiovascular diseases. Therefore, the objective of this work was to analyze the chemical composition of Gala apples and to study the effect of their consumption on weight gain, food intake, serum levels of total cholesterol, HDL-C, LDL-C, triglycerides, hepatic cholesterol and fecal cholesterol in male albino Wistar rats fed a hypercholesterolemic diet. Six animals were utilized for each treatment (control, 5, 15 and 25% apple diet), during 30 and 60 days....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cholesterol; Apple; Rats.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612008000200032
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Effect of growth regulators application on the quality maintenance of 'Brookfield' apples Bragantia
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
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Effect of holding period prior to storage on the chemical attributes of Starking Delicious apples during refrigerated storage Ciênc. Tecnol. Aliment.
Batkan,Aynur; Kundakçi,Akif; Ergönül,Bülent.
In this research, the effects of three different holding periods (6, 12 and 24 hours) prior to storage on the quality attributes of Starking Delicious apples were investigated during storage of 8 months at 0.5 ± 1.0 ºC. Changes in weight loss, flesh firmness, pH values, soluble dry matter amount, titratable acidity values, ascorbic acid contents, and total and reducing sugar content were determined. According to the results, the holding period showed statistically significant changes in the quality attributes of the apples (p < 0.05).
Tipo: Info:eu-repo/semantics/article Palavras-chave: Apple; Storage; Quality.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000200002
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Effect of methyl jasmonate treatments on the bioactive compounds and physicochemical quality of 'Fuji' apples Ciencia e Investigación Agraria
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
Registros recuperados: 74
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