26 resultados para PROVENANCE


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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

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Pós-graduação em Doenças Tropicais - FMB

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The wood of Eucalyptus tereticornis is intensively used for timber, structures, buildings, poles, posts and coal. The aim of this study was to estimate genetic parameters and genetic and phenotypic correlations in growth and stem form traits of 52 open-pollinated progenies of E. tereticornis sampled from three Australian populations (20 progenies from Helenvale, 19 from Ravenshoe and 13 from Mt. Garnet). The progenies were compared with three commercial control also from Australian. The experimental design used was the compact family block, with the effect of provenance allocated in the plots and progenies within provenances in the subplots. Ten repetitions of the 52 treatments, sub-plots with six plants and the spacing of 3 x 2 m was used. At 25 years of age it was measured the diameter at breast height (DBH), total height, true volume and the stem form. We found genetic variation amon and within the three provenances and the possibility of obtaining high gains from mass selection and individual among and within progenies. The provenance Helenvale showed the best development for DBH, height and volume. The traits DBH, height and volume showed high genetic correlations (> 0.9), indicating the possibility to use the indirect selection. The coefficient of heritability on a progeny mean for the traits DBH and height was median, being 0.31 and 0.30, respectively. The expected genetic gain with the selection were estimated at 12.4% for DBH and 8.5 % for plant height. These results will subsidize the transformation of the provenance and progeny test in a seedling seed orchard and a clonal seed orchard.

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

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The arrangement and description of archival materials are the nuclear processes of Archival Science that share a common purpose: to represent the archival knowledge. This representation is fundamentally based on the application of the principle of provenance and on the concept of fonds. This paper aims to discuss de archival description facing the changes and ideas of an archival postmodern approach that proposes the concept of fonds and the principle of provenance as conceptual abstraction rather than a physical entity in the representation process. In that sense, it is presented here the theoretical perspectives of Canadian and Australian studies, discussing the theoretical basis of Modern Archival Science, facing the dynamic reality of contemporary record creation.

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

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Pós-graduação em Agronomia - FEIS

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Pós-graduação em Ciência da Informação - FFC

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)