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| Registros recuperados: 42 | |
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| Brown, A. Blake; Martin, Laura L.. |
| Declining domestic cigarette consumption, increased global competition, and loss of import restrictions indicate decreased demand for U.S. flue-cured tobacco. The effects of 10% declines in domestic and export demand are evaluated under a policy of reducing quota to maintain price versus a policy of allowing price to fall to maintain quota. Changes in prices, quantities, revenues, and economic rents are simulated. Losses to nonfarming quota owners are minimized under a policy of price maintenance, while losses in revenues to tobacco-producing areas are minimized by a policy of quota maintenance. Aggregate losses to tobacco growers are greater under a policy of quota maintenance. |
| Tipo: Journal Article |
Palavras-chave: Flue-cured; Policy; Price reduction; Quota; Tobacco; Agricultural and Food Policy. |
| Ano: 1996 |
URL: http://purl.umn.edu/15112 |
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| Jones, Alison Snow; Beach, Robert H.; Johnston, Stephen A.. |
| As U.S. farm income from tobacco production has declined in recent years, there has been increased interest in developing alternative sources of farm revenue to replace lost tobacco income, particularly in tobacco-dependent communities of the southeastern United States. The recent end of the tobacco quota program is expected to accelerate the exit of tobacco farmers and has heightened concern regarding the availability of profitable substitutes for tobacco. In this study, we examine the impact of farm, household, and market characteristics on tobacco farmer interest and success in on-farm and off-farm income diversification. Using survey data collected from a panel of North Carolina tobacco farmers in 1997, 1999, 2001, and 2004 combined with market data... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Tobacco; Farm diversification; Household model; Quota buyout.; Farm Management. |
| Ano: 2005 |
URL: http://purl.umn.edu/19151 |
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| Almeida, A. Q. de; Vieira, E. L.. |
| This work aimed at evaluating the action of gibberellin on growth, development and production of Nicotiana tabacum L., Type Brasil-Bahia. Liquid gibberellin in doses of 0, 1.25, 3.75, 6.75 and 10.0 mL L-1 was sprayed on leaves of plants grown in greenhouse. The pelleted seeds were sowed in expanded polystyrene trays containing PlantMax®. Fifteen days after sowing (DAS), the treatments were applied. Six sprayings were made once a day, every five days. After 43 DAS, the number of leaves, length of the stem and root, dry matter of stem, leaves and roots, and leaf area were evaluated. In the field, the plants remained for 64 days and the number of total leaves, number of feasible leaves, plant height, dry matter of stem and leaves, and leaf area were... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Elongation; GA3; Increasing; Leaf pulverization; Tobacco. |
| Ano: 2010 |
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/4271 |
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| Azadbakht, Mohsen; Ghajarjazi, Ehsan; Kiapei, Ali; Jafari, Hassan; Salehi, Ebrahim; Pishgar, Reza. |
| Tobacco is one of the important agricultural and industrial products which plays a crucial role in economics and income of the producing countries and tobacco’s leaves are actually used commercially. In this study, the effects of two tobacco varieties K326 and 347 in three plant spacing of 30, 40, and 50 cm (with density of 33333, 25000 and 20000 plants/ha) on physical properties and weight of tobacco leaves are discussed. The results of variance analysis showed that the ¬¬¬effects of variety and plant spacing on leaf surface in 5% level were significant. Interaction effect of these two factors wasn’t significant. Also results showed that independent and interaction effects of plant spacing and different varieties of tobacco on leaf weight were significant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tobacco; Plant spacing; Leaf; Weight; Yield. |
| Ano: 2016 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3646 |
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| de Carvalho, Ricardo Oliano; Machado, Miguel Borges; Milech, Fábio Brongar; Fuentes, Giovani Castro; da Luz, Carlos Alberto Silveira; Gadotti, Gizele Ingrid; da Luz, Maria Laura G. Silva. |
| The tobacco drying greenhouses, in general, are made without any coating that ensures thermal insulation and avoid heat losses, resulting in a large consumption of firewood during the drying of the tobacco. The study aims to develop an economically viable project to the producer, to avoid excessive heat loss through the walls and ceiling of a tobacco dryer, aimed at fuel economy, reduced drying time and reduces costs in process. For the current project, we considered changes of Brazilian theoretical mode, where we developed a thermal insulation system in a dryer, reaching satisfactory results, with a large reduction in energy losses and firewood consumption, resulting in a decrease in the costs of the proceedings in general. Thus, began for the development... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Tobacco; Dryer; Insulation.. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3105 |
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| CALDAS,B.-H. C.; REDAELLI,L. R.; DIEFENBACH,L. M. G.. |
| Corecoris dentiventris Berg, 1884 (HEM., Coreidae) represents a pest in the tobacco culture in Southern Brazil. Nymphs and adults cause the wilting and twisting of the tobacco leaves due to their sucking habit. There are very few works about this species and these are restricted to concise description of the adult morphology, records of host plants and enumeration of injuries. The present investigation aims to study the life cycle of this bug. The experiment was carried out in a tobacco culture (Virginia type, var. K 326) implanted in the experimental area of the Departamento de Fitossanidade of the Universidade Federal do Rio Grande do Sul, in Porto Alegre, RS. The life cycle was studied in field conditions, in nylon cages, from egg clusters oviposited by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Corecoris dentiventris; Life cycle; Tobacco. |
| Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000100020 |
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| Meneghini,A.C.; Koenigkam-Santos,M.; Pereira,M.C.; Tonidandel,P.R.; Terra-Filho,J.; Cunha,F.Q.; Menezes,M.B. de; Vianna,E.O.. |
| Special attention has emerged towards biomass smoke-induced chronic obstructive pulmonary disease (COPD), providing new knowledge for prevention and therapeutic approach of non-smoker COPD patients. However, the understanding of biomass smoke COPD is still limited and somewhat controversial. The aim of the present study was to compare COPD exclusively caused by tobacco smoking with COPD exclusively caused by environmental or occupational exposures. For this cross-sectional study, COPD patients were recruited from outpatient clinics and formed two groups: non-smoker COPD group (n=16) with exposure to biomass smoke who did not smoke cigarette and tobacco smoker COPD group (n=15) with people who did not report biomass smoke exposure. Subjects underwent... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chronic obstructive pulmonary disease; Biomass; Tobacco. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2019000500601 |
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| Conway,S.G.; Roizenblatt,S.S.; Palombini,L.; Castro,L.S.; Bittencourt,L.R.A.; Silva,R.S.; Tufik,S.. |
| To evaluate the effect of smoking habits on sleep, data from 1492 adults referred to the Sleep Institute were accessed and divided into 3 categories of smoking status: current, former and non-smokers. Categories of pack-years (<15 and ≥15) defined smoking severity. The association of smoking status and smoking severity with sleep was analyzed for sleep parameters, especially apnea and hypopnea index (AHI) ≥5, more than 5% of total sleep time (TST) spent with oxyhemoglobin saturation (SaO2) <90%, and arousal index. The arousal index was higher among current (21 ± 17) and former smokers (20 ± 17) than non-smokers (17 ± 15; P < 0.04). Former smokers had a higher percent of TST at SaO2 <90% than non-smokers (9 ± 18 vs 6 ± 13; P < 0.04). Former... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Smoking; Tobacco; Smoking cessation; Sleep; Sleep-disordered breathing. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2008000800014 |
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| Registros recuperados: 42 | |
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