Parâmetros genéticos entre caracteres quantitativos no girassol como critério de seleção para produtividade de aquênios

Two experiments were conducted in southern Brazil in no-tillage system, in order to estimate genetic parameters and the direct and indirect effects of components for achene yield as a selection criterion in sunflower. We analyzed eight sunflower hybrids at two locations, in a randomized complete block design with four replicates, determined through quantitative descriptors: insertion height of the head, and head stem diameter, weight of 1000 achenes, number of achenes per head, mass by achene head and yield achene. Estimates of genetic parameters were based on combined analysis, decomposing interactions in genetic and environmental components. Considering the coefficient of genetic variation, indirect effects of components and heritability, there are higher possibilities for responses to selection in sunflower achenes by descriptors mass and mass of achenes per head, with its indirect association interrelated pathways for the increase in the achenes of yield.

Importancia del sector informal en los futuros asentamientos urbanos: la metrópolis dual = Importance of the informal sector in future urban settlements: the dual metropolis

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Resultados del seminario sobre la aplicación de los estudios de impacto ambiental en la planeación de la disposición de los desechos sólidos urbanos e industriales generados en una ciudad

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Incorporação de probióticos na dieta para juvenis de tilápias-do-nilo: Parâmetros hematológicos, imunológicos e microbiológicos

Probiotics are generally considered as live microorganisms which, when administered in adequate amounts, confer a health benefit to the host. The processing method of diet and the form of inclusion of probiotic can interfere in hematological, immunological and microbiological parameters in fish. The aim was to estimate the hematological, immunological and microbiological parameters in juveniles of Nile tilapia, fed probiotic, included before and after the process of pelletization and extrusion. The experimental design was completely randomized, with five treatments: pelleted diet without probiotic, pelleted diet with inclusion of probiotic before and after processing, extruded feed without probiotic and extruded feed with inclusion of probiotic after processing and five replications. Two hundred and fifty fish were distributed in 25 aquaria (20 L) and fed for 63 days. The blood composition (red and white) showed no significant differences except mean corpuscular hemoglobin concentration of control when compared to other treatments. The phagocytic capacity of the animals that had received the extruded diet supplemented with probiotic was significantly higher when compared to the other treatments. However, there were no differences between the treatments regarding to the phagocytic index. Fish fed the extruded diet exhibited significant improvement in the nonspecific immunity. The probiotic bacteria colonized the intestine, since it was possible to recover them. We can affirm that these fishes remained healthy, because the hematological parameters were not altered during the experimental. The study shows that any form type of inclusion in the feed tested (before or after and after pelletizing extrusion) may be easily used by the fish farmer.

Estimación de parámetros genéticos para producción de leche en el día de control en búfalas de primer parto

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Los condicionantes y las consecuencias de los asentamientos precarios urbanos como marco de formulación de programas de vivienda, infraestructura y servicios para los grupos de menores ingresos

Analiza los condicionantes económicos y demográficos que influyen en el proceso de surgimiento y expansión de los asentamientos urbanos de los grupos de bajos ingresos, con el fin de formular políticas de vivienda, servicios sociales y de infraestructura más adecuada.

La importancia del sector no estructurado en los futuros asentamientos urbanos de las metrópolis duales

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Espécies vegetais de cobertura e resíduos industriais e urbanos na cultura da soja em sistema de semeadura direta

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Adubação fosfatada e lodo de esgoto compostado na nutrição da mamoneira de porte baixo, cultivada sob calagem e silicatagem

Pós-graduação em Agronomia (Agricultura) - FCA

Pobres, urbanos y productividad: claves de intervención = Urban poor and productivity: keys to action

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Pobres urbanos y productividad: claves de intervención. El programa de atención a la microempresa del Servicio Nacional de Aprendizaje (SENA) de Colombia: experiencias, evaluación, conclusiones y aportes

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Pobres urbanos y productividad: claves de intervención. Capacitación para el empleo en la juventud popular urbana: aporte y potencial de la oferta pública en Chile

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Pobres urbanos y productividad: claves de intervención. Programas de capacitación para microempresarios urbanos: El Salvador

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Pobres urbanos y productividad: claves de intervención. Manos del Uruguay: una experiencia de apoyo a la productividad de mujeres de bajos ingresos

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