Araucaria Angustifolia
Mostrando 13-24 de 378 artigos, teses e dissertações.
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13. Reserve metabolism of stored and germinated Araucaria angustifolia seeds
ABSTRACT. Germination metabolism of recalcitrant seeds of Araucaria angustifolia is activated in storage, which complicates the seeds conservation and utilization. This study aimed to identify the changes in the reserve metabolites of A. angustifolia seeds throughout storage in order to understand the processes of hydrolysis caused by germination metabolism.
Acta Sci., Agron.. Publicado em: 23/09/2019
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14. The influence of fiber size on the behavior of the araucaria pine nut shell/PU composite
Abstract The use of araucaria pine nut shell in polymer composites may increase the pine nut value and help protec araucaria (Araucaria angustifolia) itself, which is an endangered species. The aim of this work is to study the influence of the size of pine nut shell fiber on the mechanical properties of composites made of this shell and polyurethane derived
Polímeros. Publicado em: 10/06/2019
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15. Distribuição do diâmetro de copa e diâmetro quadrático de Araucaria angustifolia e Pinus taeda
Resumo As funções de densidade de probabilidade têm várias aplicações florestais, entre as quais o tratamento de dados biométricos e uso em modelagem. O objetivo deste estudo foi verificar qual função densidade de probabilidade melhor se ajusta ao diâmetro de copa (dcopa) e ao diâmetro quadrático (dq), e também analisar o efeito dessas variávei
Ciênc. Florest.. Publicado em: 30/05/2019
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16. Araucaria angustifolia Budding Techniques in Indoor and Outdoor Stablished Rootstocks
ABSTRACT The objective of this work was to evaluate the technical feasibility of budding in A. angustifolia in two rootstocks establishment, performed in two seasons of the year. In October and April, patch and flute budding techniques were carried on rootstocks kept indoor (greenhouse) and established outdoor (field), with grafts of adult female plants. The
Floresta Ambient.. Publicado em: 30/05/2019
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17. Anatomical and Physicochemical Characterization of the Araucaria angustifolia Seed Coat
ABSTRACT Seed coat plays an important role in the embryo protection and seed germination. This study aimed to characterize the anatomical structure, histochemical and physicochemical aspects of the seed coat of Araucaria angustifolia Kuntze. Light and scanning microscopy usual procedures, and histochemical tests were used to describe and characterize seed la
Floresta Ambient.. Publicado em: 23/05/2019
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18. The last giant Araucaria trees in southern Brazil
ABSTRACT: Araucaria angustifolia (Bertol.) Kuntze is a native tree species of major importance in southern Brazil. It is a regional symbol due to its iconic shape and stature in the landscape; its wood was once economically important and its seeds are an important source of food for the fauna and are presently used in regional cuisine. Despite its importance
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-05
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19. Species diversity, community structure and ecological traits of trees in an upper montane forest, southern Brazil
ABSTRACT Upper montane ecosystems in Brazil are little known, and their structural and functional aspects poorly understood. Our goals were to describe tree species diversity and community structure, and to characterize tree species in relation to their ecological traits, phytogeographic history and conservation status in an upper montane araucaria forest re
Acta Bot. Bras.. Publicado em: 2019-03
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20. Brazilian Pine (Araucaria angustifolia (Bertol.) Kuntze) Ethnoecology in the Mantiqueira Atlantic Forest
ABSTRACT Araucaria angustifolia is under the domain of the Atlantic Forest, classified as Mixed Ombrophilous Forest (FOM). It is a native species critically threatened due to the intense exploration, to the point of exhaustion, of its natural reserves. This study aims to present the ethnoecological knowledge regarding this species in a community located in t
Floresta Ambient.. Publicado em: 14/02/2019
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21. Forests of the Iguaçu National Park: Structure, Composition, and Richness
Abstract Considering the importance of the Iguaçu National Park for the conservation of the Atlantic Forest and the absence of scientific or technical studies characterizing the ecology of forest species after seven and a half decades of its existence, a phytosociological survey of the arboreal vegetation was conducted to identify the various existing spec
Floresta Ambient.. Publicado em: 13/12/2018
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22. Análise termogravimétrica para caracterização dos pellets produzidos com diferentes resíduos florestais e agrícolas
RESUMO: A peletização de resíduos florestais e agrícolas tem sido uma alternativa na obtenção de produtos com maior valor agregado para a geração de energia, pois muitos resíduos podem ser utilizados neste processo. Assim, o objetivo deste estudo foi avaliar a qualidade energética dos pellets produzidos com resíduos florestais e agrícolas como m
Cienc. Rural. Publicado em: 22/10/2018
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23. Abiotic effects on the cover and richness of corticolous lichens on Araucaria angustifolia trunks
ABSTRACT Lichens play a key role in natural ecosystems, as they can function as primary producers, recycle minerals and fix nitrogen. Despite their environmental importance, little is known about lichen ecology in Brazil, and especially about how abiotic factors may influence their spatial distribution. In this study, we aimed to verify how the cover and ric
Acta Bot. Bras.. Publicado em: 21/09/2018
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24. DESMATAMENTO EM FLORESTA OMBRÓFILA MISTA NA REGIÃO SERRANA DE SANTA CATARINA
RESUMO A partir da vigência da Lei nº 11.428/06 criou-se uma expectativa se regras mais restritas de uso e conservação da Mata Atlântica seriam suficientes para a redução dos desmatamentos. Na mesma ótica, os órgãos de fiscalização ficaram em evidência, cobrando-se a aplicação desse instrumento legal. Os objetivos deste estudo foram: 1) analis
Rev. Árvore. Publicado em: 02/07/2018