Dairy production of "Saanen" goats based on meteorological variables and future climate scenarios.

Abstract: This study aimed to modeling and bioclimatic zoning of "Saanen" goat milk production in northeastern Brazil. Data were obtained from a 14-year dairy control program for 246 ?Saanen? goat matrices. Dairy production meteorological influence and mathematical modeling were assessed through statistical analyses such as Pearson?s correlation matrix and path analysis. Bioclimatic zoning for current and future scenarios, with climate changes, were delineated using inverse-square distance (ISD) and spherical model (kriging) interpolations. Results showed maximum air temperature to contribute substantially to goat dairy production; therefore, its modeling was based thereon. Current and future dairy production maps highlighted Maranhão and Piauí as regions of limited ?Saanen? milk production. Furthermore, we should emphasize that temperature rises in further scenarios may have significant impact on the potential of dairy farming for the region under study

Técnicas de produção de sementes florestais.

Este trabalho apresenta informações sobre técnicas de seleção, extração, beneficiamento, secagem e armazenamento de sementes florestais, a fim de obter sementes de boa qualidade.bitstream/item/100452/1/Cot205-sementesflorestais.pd

Técnicas de produção de sementes florestais.

Este trabalho apresenta informações sobre técnicas de seleção, extração, beneficiamento, secagem e armazenamento de sementes florestais, a fim de obter sementes de boa ualidade.bitstream/item/24812/1/Cot-205.pd

Morphogenic Responses of Two \u3cem\u3eBrachiaria\u3c/em\u3e Genotypes in Response to Clipping Frequency

Tropical grasslands represent an important resource for the Brazilian cattle industry, which is heavily dependent on grazed pastures. Total pasture area in the country totals 196 M ha (23% of the country’s land area) (FAO 2013). The genus Brachiaria represents around 85% of cultivated pastures in Brazil (Moreira et al. 2009), 40% of which are established with B. brizantha cv. Marandu (Barbosa 2006). Mulato II is a new hybrid brachiaria grass cultivar which has been developed to improve agronomic characteristics, broaden the range of adaptation, and to ensure high forage production and nutritive value. It has also been viewed as a means of reducing the dependence on the Marandu palisade grass monoculture (Argel et al. 2007). The use of new cultivars should be based on adequate understanding of physiological processes and growth potential under a range of management practices. Morphogenic characteristics allow for accessing herbage accumulation potential through the measurement of tissue synthesis and senescence in forage plants. Management practices such as defoliation frequency can modify assimilate partitioning in the forage plant, affecting morphogenic characteristics related to growth rate and forage nutritive value. The objective of this research was to describe and explain morphogenic differences between Marandu palisade grass and Mulato II brachiaria grass as affected by harvest frequency

Caracterização de dez áreas com café conilon arborizado na Zona da Mata de Rondônia.

A presente pesquisa faz parte de um projeto maior de manejo da lavoura cafeeira arborizada e objetivou identificar as principais espécies utilizadas na arborização de áreas com cafeeiro Robusta nos município de Rolim de Moura e Nova Brasilândia do Oeste. A pesquisa foi desenvolvida em dez propriedades, cinco por município, e constou da aplicação de um questionário sócio-econômico, no qual foram levantadas a área total de cada propriedade, área com café Robusta, área com a(s) espécie(s) arborizadora, número de plantas, produtividade e idade do cafeeiro. Em Rolim de Moura a área total das propriedades avaliadas com cafeeiro Robusta arborizado é de 7,9 ha, a produtividade média varia de 10 a 100 sacas/ha, a idade do cafeeiro varia de 5 a 15 anos. No município de Nova Brasilândia a área total com café nas propriedades analisadas é de 15, 58ha, produtividade variando de 9 a 85 sacas/ha, a idade do cafeeiro varia de 5 a 21 anos

Salt-magma interactions influence intrusion distribution and salt tectonics in the Santos Basin, offshore Brazil

Many sedimentary basins host thick evaporite (salt) deposits. Some of these basins also host extensive igneous intrusion networks. It thus seems inevitable that, in some locations, magma will interact with salt. Yet how interaction between these materials may influence salt tectonics or magma emplacement, particularly at the basin‐scale, remains poorly understood. We use 3D seismic reflection data from the Santos Basin, offshore Brazil to image 38 igneous intrusions spatially related to thick Aptian salt. Based on identified seismic–stratigraphic relationships, we suggest sill emplacement likely occurred during the late Albian‐to‐Santonian. We show intra‐salt sills are geometrically similar to but laterally offset from supra‐salt sills. We suggest ascending magma was arrested by the salt in some areas, but not others, perhaps due to differences in evaporite lithology. Our mapping also reveals most sills occur within and above the presalt Merluza Graben, an area characterized by Albian‐to‐Neogene, salt‐detached extension. In adjacent areas, where there are few intrusions, salt deformation was driven by post‐Santonian diapir rise. We suggest emplacement of hot magma within evaporites above the Merluza Graben enhanced Albian‐to‐Santonian salt movement, but that crystallization of the intrusion network restricted post‐Santonian diapirism. Our work indicates salt–magma interaction can influence salt tectonics, as well as the distribution of magma plumbing systems, and thus could impact basin evolution