2d Tree
Mostrando 13-24 de 166 artigos, teses e dissertações.
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13. Allometric models to estimate tree height in northern Amazonian ecotone forests
RESUMO Modelos alométricos que definem o relacionamento entre diâmetro do tronco e a altura total da árvore na bacia amazônica são importantes porque refinam as estimativas de fluxo e estoques de carbono arbóreo na região. Este estudo testou diferentes modelos alométricos para estimar a altura total de árvores a partir do diâmetro do tronco em uma
Acta Amaz.. Publicado em: 06/05/2019
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14. Evaluation of Rubber Tree Clones Under Different Tapping Systems in Northwestern Paraná State, Brazil.
ABSTRACT This study evaluates the potential of rubber tree clones (Hevea spp.) under four tapping systems for the Northwestern region of the State of Paraná with the objective of enhance genetic diversification and increase natural rubber production in this new and promising region for rubber tree cultivation by selecting the better combination of clone and
Braz. arch. biol. technol.. Publicado em: 14/11/2018
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15. Critical analyses when modeling tree biomass to ensure additivity of its components
ABSTRACT It is presented the theme additivity of biomass of tree components. To evaluate and discuss this context, experimental information collected in forests of Acacia mearnsii De Wild. was used. Equations for components (stem and crown) and total biomass were fitted by means of two procedures: 1) generalized nonlinear least squares and 2) weighted-nonlin
An. Acad. Bras. Ciênc.. Publicado em: 17/05/2018
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16. Investigation of Enteric Viruses in the Feces of Neotropical Migratory Birds Captured on the Coast of the State of Pará, Brazil
ABSTRACT Migratory birds can become long-distance vectors for a wide range of microorganisms and can cause human disease, being the Brazilian coast a gateway for northern migratory birds. These animals are considered natural reservoirs of different viruses that cause important diseases, being relevant research of viral pathogens in migratory birds to epidemi
Rev. Bras. Cienc. Avic.. Publicado em: 2018-03
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17. Leishmanicidal compounds of Nectria pseudotrichia, an endophytic fungus isolated from the plant Caesalpinia echinata (Brazilwood)
BACKGROUND In a screen of extracts from plants and fungi to detect antileishmanial activity, we found that the ethyl acetate extract of the fungus Nectria pseudotrichia, isolated from the tree Caesalpinia echinata (Brazilwood), is a promising source of bioactive compounds. OBJECTIVES The aims of this study were to isolate and determine the chemical structu
Mem. Inst. Oswaldo Cruz. Publicado em: 2018-02
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18. Evaluation of phenolic compounds and lipid-lowering effect of Morus nigra leaves extract
ABSTRACT Morus nigra L. (Moraceae) is a tree known as black mulberry and the leaves are used in folk medicine in the treatment of diabetes, high cholesterol and menopause symptoms. The aim of this study was to evaluate the M. nigra leaves phytochemical profile in different extractions and the hypolipidemic effect of the infusion comparing to the fenofibrate.
An. Acad. Bras. Ciênc.. Publicado em: 07/12/2017
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19. Molecular analysis of CIB4 gene and protein in Kermani sheep
The human calcium- and integrin-binding protein (CIB) family is composed of CIB1, CIB2, CIB3, and CIB4 proteins and the CIB4 gene affects fertility. Kermani sheep is one of the most important breeds of Iranian sheep breeds. The aim of this study was to analyze for the first time molecular characteristics of the CIB4 gene and protein in Kermani sheep. Differe
Braz J Med Biol Res. Publicado em: 12/09/2017
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20. Phosphate solubilization by endophytic bacteria isolated from banana trees
ABSTRACT Forty isolates of endophytic bacteria isolated from banana tree roots were assessed as to their capacity to solubilize phosphate in a solid culture medium supplemented with different inorganic and one organic source of phosphorus. The amount of phosphorus (P) in each liquid medium was quantified, and an indirect assessment of acid phosphatase activi
An. Acad. Bras. Ciênc.. Publicado em: 04/09/2017
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21. Hymenaea courbaril SEEDLINGS IN PROTECTED ENVIRONMENTS AND SUBSTRATES
ABSTRACT The Brazilian copal is a tree fruit species that can be used for various purposes. The study evaluated protected environments and substrates in forming Brazilian copal seedlings (Hymenaea courbaril), at the State University of Mato Grosso do Sul, Cassilândia-MS, from January to March, 2014. Two greenhouses were used: (A1) agricultural greenhouse co
Eng. Agríc.. Publicado em: 2017-02
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22. Ecological impacts of non-native tree species plantations are broad and heterogeneous: a review of Brazilian research
RESUMO Plantações de árvores não nativas representam 7% das florestas do mundo e 1,24% da vegetação brasileira. Essas áreas plantadas devem aumentar no futuro próximo; assim, é importante sistematizar o conhecimento existente sobre os efeitos ecológicos das plantações para auxiliar o manejo florestal e a conservação da biodiversidade. Aqui, rea
An. Acad. Bras. Ciênc.. Publicado em: 10/10/2016
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23. Characterization of mannitol-fermenting methicillin-resistant staphylococci isolated from pigs in Nigeria
This study was conducted to determine the species distribution, antimicrobial resistance pheno- and genotypes and virulence traits of mannitol-positive methicillin-resistant staphylococci (MRS) isolated from pigs in Nsukka agricultural zone, Nigeria. Twenty mannitol-positive methicillin-resistant coagulase-negative staphylococcal (MRCoNS) strains harborin
Braz. J. Microbiol.. Publicado em: 2015-09
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24. Los insectos galícolas en Schinus fasciculata (Anacardiaceae) en el Espinal del centro de Argentina
Galls are the most complex interaction between plants and insects during the course of their evolution. The species of galling insects are found in the most of biogeographic regions, but mainly in xeric habitats, as the Espinal eco-region, located in the Pampa Biogeographic Region, Chacoan Subregion. Schinus fasciculata (Griseb.) I. M. Johnst. (Anacardiaceae
Iheringia, Sér. Zool.. Publicado em: 2015-03