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Search Results: 1 - 10 of 10463 matches for " Botton Marcos "
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Assentamentos rurais e gera??o de renda: posi??o social restringida, recursos socioculturais e mercados
Piccin, Marcos Botton;
Economia e Sociedade , 2012, DOI: 10.1590/S0104-06182012000100005
Abstract: this paper analyses farmers' social status in rural settlements concerning the structure of economic power in brazilian society and the perspectives of income generation in the context of oligopolized markets. it is argued that, as owners of small productive assets, they are integrated into a social space that tends to establish a simple reproduction of family members working conditions. this context presents some options for implementation of alternatives to income generation that are restricted to the characteristics of the areas where settlements are located and the socio-cultural properties incorporated by the farmers through their social trajectory. the situations discussed in this paper aim to identify not only power relationships, but also their materialization in symbolic systems stemming from historical and structural inequality in brazilian society. the incorporation of objective and subjective structures by the settlers, expressed in the settlements, constitutes parameters to access and build markets in a different way.
Gramsci e as culturas subordinadas
Marcos Botton Piccin
Revista IDeAS : Interfaces em Desenvolvimento, Agricultura e Sociedade , 2010,
Abstract: The present paper is a discussion how Antonio Gramsci dispute the subordinate cultures. The way people interpret, appoint, classify the world and how such concepts gain hegemonic status, as well as the realities can be transformed, was a substrate of departure for their reflection. This could make us understand culture as an ideal set of resources that are socio-historically formed on a material basis and the incorporation of power relations between individuals. Hence, it could be noticed his insistence on the need for undertaking a "will" in social transformation. In this context it should be understood their studies on the subordinate cultures.
Ocorrência do ácaro vermelho europeu Panonychus ulmi (Koch) (Tetranychidae) associado à cultura da videira no Rio Grande do Sul, Brasil
Ferla, Noeli Juarez;Botton, Marcos;
Ciência Rural , 2008, DOI: 10.1590/S0103-84782008000600042
Abstract: the occurrence and the damage caused for the european red spider mite panonychus ulmi (koch) associated to the culture of the grapevine are described. the collections had been carried through in 2005-2006 seasons in vitis vinifera l. of cultivating merlot in bento gon?alves and candiota counties, in the state of rio grande do sul, brazil. the infested leaves had presented bronzing, with spots redly in the adaxial face resulting in the premature fall. this is the first register of the european red mite damaging the culture of the grapevine in rio grande do sul.
Avalia o da resistência de cultivares de Vitis rotundifolia à pérolada- terra (Hemiptera: Margarodidae) na regi o sul do Brasil = Evaluation of the resistance of Vitis rotundifolia cultivars to brazilian ground pearl (Hemiptera: Margarodidae) in southern Brazil
Marcos Botton,Vanessa Dalla Colleta
Acta Scientiarum : Agronomy , 2010,
Abstract: A pérola-da-terra Eurhizococcus brasiliensis (Hempel in Wile) (Hemiptera: Margarodidae) é uma das principais pragas da videira na Regi o Sul do Brasil. Neste trabalho, foi avaliada a resistência de cultivares de Vitis rotundifolia (Bountiful, Chief, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke, Sumith e Topsail) à pérola-da-terra, comparando-as com o porta-enxerto 101-14 (Vitis riparia x Vitis rupestris). O experimento foi instalado em área naturalmente infestada pela praga, avaliando-se a resistência dos genótiposmediante a contagem do número de insetos presentes nas raízes, peso seco das plantas (parte aérea + raízes) e mortalidade após três anos. Todas as cultivares de V. rotundifolia apresentaram baixo índice de infesta o pela pérola-da-terra, maior vigor e menor mortalidade quando comparadas ao porta-enxerto 101-14. Todas as plantas do portaenxerto 101-14 morreram após o segundo ano de plantio. As cultivares Bountiful, Chief, Magoon, Magnólia e Regale apresentaram reduzida infesta o pela praga, o que demonstra a existência de resistência do tipo antixenose e/ou antibiose. A cultivar Dixie foi a mais infestada pela cochonilha, porém apresentou vigor elevado, indicando a existência de tolerancia entre os genótipos. Os resultados demonstram que as cultivares de V. rotundifolia Bountiful, Chief, Magoon, Magnólia e Regale apresentam reduzida infesta o por E.brasiliensis e podem ser empregadas como produtoras e/ou fontes de resistência à praga em programas de melhoramento. Brazilian ground pearl Eurhizococcus brasiliensis (Hempel in Wile) (Hemiptera: Margarodidae) is one of the main grape pests in southern Brazil. The resistance of Vitis rotundifolia cultivars (Bountiful, Chief, Creek, Dixie, Magnolia, Magoon, Noble, Regale, Roanoke, Sumith and Topsail) to Brazilian ground pearl was evaluated by comparison with 101-14 (Vitis riparia x Vitis rupestris) rootstock. The experiment was conducted in a naturally infested field, by measuring pest infestation on roots, dry weight of plants (leaves + roots) and mortality during three years. V. rotundifolia cultivars showed a reduced infestation by the pest, a higher vigor and lower mortalitywhen compared to 101-14 rootstock. All 101-14 plants were killed by the pest after the second year in the field. The cultivars Bountiful, Chief, Magoon, Magnolia and Regale had low pest infestation, showing antixenosis or antibiosis resistance. The Dixie cultivar showed a higher pest infestation; however, this was associated with high plantvigor, suggesting the existence of tolerance. The results show that V. rotun
Ocorrência de Argyrotaenia sphaleropa (Meyrick) (Lepidoptera: Tortricidae) danificando pêssegos na Serra Gaúcha, Rio Grande do Sul
Botton, Marcos;Bavaresco, Alvimar;Garcia, Mauro S.;
Neotropical Entomology , 2003, DOI: 10.1590/S1519-566X2003000300020
Abstract: during the 2000/2001 season, the polyphagous leafroller argyrotaenia sphaleropa (meyrick) caused damage in commercial peach orchards, in rio grande do sul, brazil. caterpillars scrape the fruit epidermis, mainly at the insertion of the stalk or in the junction of the leaves and fruits, depreciating them commercially. despite conventional chemical treatments, losses were around 2%; however, many growers have mistaken the a. sphaleropa damage as caused by grapholita molesta (busck), and have used insecticides to control the last one.
Avalia??o de Inseticidas Visando ao Controle de Eurhizococcus brasiliensis (Hempel) (Hemiptera: Margarodidae) em Novos Plantios de Videira
Neotropical Entomology , 2002, DOI: 10.1590/S1519-566X2002000300017
Abstract: the ground pearl, eurhizococcus brasiliensis (hempel), is a parthenogenetic univoltine soil scale, which attacks roots of grapes (vitis sp.) causing plant death. infested areas became restricted to cultivation of grapes and other temperate fruits. neonicotinoid insecticides imidacloprid and thiamethoxan were evaluated for soil application seeking for new alternatives for pest control on young plants (one year old). imidacloprid was drenched using one liter of water per plant while thiamethoxan was applied direct to the soil using granular formulation. a single application in november provided a control higher than 80%, similar to the standard compound vamidothion (90 ml/100 l, three times a year). the dose of 0.14 g/plant of imidacloprid and thiamethoxan was enough to protect young plants for one season. these results show the possibility of controlling e. brasiliensis with neonicotinoid insecticides and hence implant new vineyards in infested areas.
Injúrias causadas por mosca-das-frutas sul-americana em cultivares de videira
Zart, Marcelo;Botton, Marcos;Fernandes, Odair Aparecido;
Bragantia , 2011, DOI: 10.1590/S0006-87052011000100011
Abstract: the south american fruit fly, anastrepha fraterculus (wiedemann) (diptera: tephritidae), is a major pest of fruit production in brazil. this study was conducted to evaluate the stages of berry susceptibility and injuries caused by the fruit flies in different grape cultivars. the work was conducted in the field with 'cabernet sauvignon', 'moscato embrapa' and 'isabel' cultivars, located in bento gon?alves, rs, in 2006 and 2007. two couples of a. fraterculus were confined in grape bunchs in different phenological stages: berries pea-size, berries still hard and green, berries begin to colour and enlarge, and berries harvest-ripe. significative berry dropping was recorded in 'cabernet sauvignon' cultivar when injured by a. fraterculus in the stages of berries pea-size and berries still hard and green; stage of berries pea-size in 'moscato embrapa' and stages of berries pea-size, berries still hard and green, berries begin to colour and enlarge in 'isabel' cultivar. deformation in berries was recorded when infestations were done in phases berries pea-size and berries still hard and green of 'cabernet sauvignon', 'moscato embrapa' and 'isabel' cultivars. there was development of larvae to the pupa stage in 'moscato embrapa' cultivar.
Controle químico da forma galícola da filoxera Daktulosphaira vitifoliae (Fitch, 1856) (Hemiptera: Phylloxeridae) na cultura da videira
Botton, Marcos;Ringenberg, Rudiney;Zanardi, Odimar Zanuzo;
Ciência Rural , 2004, DOI: 10.1590/S0103-84782004000500002
Abstract: grape phylloxera daktulosphaira vitifoliae (fitch, 1856) (hemiptera: phylloxeridae) is the main grape pest. adults and nymphs feeds on leaves and roots but major damage is observed on roots of own rooted vitis vinifera. damage on leaves is important in root stock nurseries where chemical control is necessary. this study was conducted to evaluate insecticides to control the leaf form in a paulsen 1103 nursery in field condictions. imidacloprid (provado 200 sc, 40ml 100l-1) and thiamethoxam (actara 250 wg, 30g 100l-1) reduced foliar damage in more than 90%, providing better control than deltamethrin (decis 25 ce, 40ml 100l-1) and fenitrothion (sumithion 500 ce, 150ml 100l-1) current standarts for pest control. acephate (orthene 750 br, 100g 100l-1) and abamectin (vertimec 18 ce, 80ml 100l-1) were not efficient.
Controle químico da forma galícola da filoxera Daktulosphaira vitifoliae (Fitch, 1856) (Hemiptera: Phylloxeridae) na cultura da videira
Botton Marcos,Ringenberg Rudiney,Zanardi Odimar Zanuzo
Ciência Rural , 2004,
Abstract: A filoxera Daktulosphaira vitifoliae (Fitch, 1856) (Hemiptera: Phylloxeridae) é considerada a principal praga da videira. O inseto se alimenta da parte aérea e raízes sendo que os maiores prejuízos s o observados em raízes de Vitis vinifera cultivada como pé-franco. O dano nas folhas é importante em viveiros, quando o ataque ocorre nos ramos utilizados como porta-enxertos, resistentes à forma radícola. Este trabalho foi realizado com o objetivo de selecionar inseticidas que possam ser empregados como substitutos aos fosforados e piretróides no manejo da forma galícola da filoxera. Os inseticidas imidacloprid, thiamethoxam, acephate, abamectin, deltamethrin e fenitrothion, foram avaliados em condi es de campo, sob infesta o natural, em plantas matrizes do porta-enxerto Paulsen 1103. Imidacloprid (Provado 200 SC, 40mL 100L-1) e thiamethoxam (Actara 250 WG, 30g 100L-1) reduziram as injúrias causadas pela forma galícola da filoxera nos ponteiros em nível superior a 90%, proporcionando controle superior aos inseticidas deltamethrin (Decis 25 CE, 40mL 100L-1) e fenitrothion (Sumithion 500 CE, 150 mL/100L) considerados referência no controle do inseto. Os inseticidas acephate (Orthene 750 BR, 100g 100L-1) e abamectin (Vertimec 18 CE, 80mL 100L-1) n o foram eficientes.
Ocorrência de Sitophilus zeamais Mots. (Coleoptera: Curculionidae) danificando a cultura da videira no Rio Grande do Sul
Botton, Marcos;Lorini, Irineu;Afonso, Ana P.S.;
Neotropical Entomology , 2005, DOI: 10.1590/S1519-566X2005000200027
Abstract: vineyards are attacked by a series of pests that damage yield. in addition to the insects traditionally associated with the crop, the presence of sitophilus zeamais motschulsky, registered as a grain store pest, was observed damaging grapes near maturity. direct damage is caused by perforation of the grapes and indirect damage from the proliferation of bacteria that multiply in the spilt juice, that lead to increased rot at harvest. in vitis vinifera grape vines of the cabernet sauvignon cultivar, up to 80% of the grapes were damaged by insect attack in february 2003.
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