Custos e viabilidade econômica da produção de casulos do bicho-da-seda

Sericiculture is characterized by the possibility of income generation in areas smaller than 10.0 ha and by the rationalization of family labor. Even considering this favorable scenario for the development of this activity, there is still a gap in the management of its economic factors in most of the rural properties within this chain, contributing negatively to their expansion. This study aimed at assessing the production cost and economic viability for producing silkworm cocoons, by using a case study conducted in a property located in Quatá, São Paulo State, Brazil. The main results for a production of 1,904 kg-1 of silkworm cocoons, with labor costs reaching 51.5% of the Effective Operating Cost and 35.5% of the Total Operating Cost, were a profitability index higher than 50% and an Internal Rate of Return of 9.68%, for the second production year, providing a good profitability rate for this agricultural segment, when we consider that the improved profitability of the producer is proportional to the best production indicators, particularly due to the fast return that this activity provides.

Selecting for rust (Puccinia psidii) resistance in Eucalyptus grandis in São Paulo State, Brazil

In Brazil, Eucalyptus grandis is a key species for wood production. However, some genotypes are susceptible to rust (Puccinia psidii), mainly in São Paulo State, where climatic conditions are favorable for its development. Rust represents a high economic risk to forest companies because of the high potential of damage to commercial eucalypt plantations. The aims of the present study were (i) to select progenies of E. grandis for stability and adaptability regarding resistance to rust at different locations; (ii) compare the selections under these different climatic conditions; and (iii) compare rust severity in the field with the theoretical model. We observed that climatic conditions were extremely influential factors for rust development, but even under favorable conditions for disease development, we found rust-resistant progenies. In sites unfavorable for rust development, we detected highly susceptible progenies. We found significant correlation among the genetic material, environmental conditions and disease symptoms, however, we observed a simple genotype-environmental interaction and significant genetic variability among the progenies. The average heritability was high among the progenies in all sites, indicating substantial genetic control for rust resistance. We also observed a good relationship between rust severity in the field and the theoretical model that considered annual average temperature and leaf wetness. © 2013 Elsevier B.V.

Pollination ecology of the Cerrado species Eschweilera nana (Lecythidaceae subfam. Lecythidoideae)

Eschweilera nana is pollinated by a guild of pollinators consisting of mostly bees. Effective pollinators are large bees able to force their way into the closed androecium to access nectar. The morphology of the flowers diminishes self pollination and promotes cross-pollination. Although many pollinators make diurnal visits to the flowers, fruit set was very low in comparison with the number of flowers produced. Breeding system tests yielded only two fruits, one produced by xenogamy and another one in the control test. The results of this study are consistent with studies of other Cerrado plants pollinated by guilds of insects and support the conclusion of other pollination studies of Lecythidaceae that fruit set is low in comparison with the high numbers of flowers produced. © 2013 The New York Botanical Garden.

Análises moleculares e da presença de endobactérias de Camponotus textor Forel, 1899 (Hymenoptera, Formicidae)

Pós-graduação em Ciências Biológicas (Biologia Celular e Molecular) - IBRC

Carcinogênese quimicamente induzida por DMBA em glândulas salivares submandibulares de ratos (rattus norvegicus)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Variabilidade genética entre e dentro de subpopulações de ipê-roxo Handroanthus Heptaphyllus (Vell.) Mattos e seu sistema reprodutivo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Estudo de caso do setor de tecelagem de uma indústria de fiação de seda, abordando pontos da ergonometria

Pós-graduação em Design - FAAC

Otimização do uso de lenha e cavaco de madeira para produção de energia em agroindústria seropédica

Pós-graduação em Agronomia (Energia na Agricultura) - FCA

A construção da imagem em O Espelho in Primeira estórias de João Guimarães Rosa e em Las meninas de Pablo Picasso

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Avaliação da produção de Co2 em solo incorporado com substrato destinado ao uso agrícola por absorção de radiação infravermelha

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Valores e atitudes na prática pedagógica do professor de educação física

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Transtornos mentais no Hospital Geral: percepções elaboradas por enfermeiros

Pós-graduação em Enfermagem (mestrado profissional) - FMB

Fatores associados à hipertensão arterial de adultos triados para programa de mudança de estilo de vida

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Rede de atenção ao câncer de mama: a busca da integralidade na organização do sistema de referência e contra-referência

Pós-graduação em Saúde Coletiva - FMB

Avaliação de desempenho de fibras lignocelulósicas na sorção de óleos diesel e biodiesel

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)