Density Of Stems
Mostrando 13-24 de 44 artigos, teses e dissertações.
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13. Aspects of spatial pattern, habitat association and herbivory density-dependent of Calophyllum brasiliense Camb. (Clusiaceae) in restinga alta florest, Ilha do Cardoso, Cananéia. SP. Brazil / Aspectos da distribuição espacial, associação com hábitat e herbivoria dependente da densidade de Calophyllum brasiliense Camb. (Clusiaceae) em restinga alta na Ilha do Cardoso, Cananéia, SP, Brasil
Several theories, including different factors and mechanisms, have been postulated to explain the high tree species coexistence in tropics, which remains an unsolved question that continues to pose a challenge to plant ecologists. Population-level tree dynamics studies contribute to a better understanding of the processes acting on community-level. The aim o
Publicado em: 2009
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14. DEVELOPMENT, GROWTH, AND YIELD OF CASSAVA AS A FUNCTION OF PLANTING DATE / DESENVOLVIMENTO, CRESCIMENTO E PRODUTIVIDADE DA MANDIOCA EM FUNÇÃO DE DATAS DE PLANTIO
Cassava (Manihot esculenta Crantz) is a native plant of Brazil and the base of multiple products, iincluding ethanol. Rio Grande do Sul State is a minor producer of cassava in Brazil, especially in the Central Region of the State. The objective of Chapter I in this Dissertation was to determine the phyllochron, the final leaf number (FLN) on the main stem (M
Publicado em: 2009
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15. ESTUDO ANALÍTICO E AVALIAÇÃO DA ATIVIDADE LARVICIDA DA MISTURA DOS ÓLEOS ESSENCIAIS DAS FOLHAS DA Pimenta dioica Lindl E DOS GALHOS DE Aniba duckei Kostermans FRENTE AO MOQUISTO Aedes Aegypti (LINNAEUS, 1762) / ANALYTICAL STUDY AND EVALUATION OF MIXTURE OF LARVICIDAL ACTIVITY OF ESSENTIAL OILS FROM THE LEAVES OF Pimenta dioica Lindl AND THE STEMS OF Aniba duckei Kostermans FORWARD TO Aedes aegypti (LINNAEUS, 1762)
In the search for alternative chemical control against Aedes aegypti L., various studies are developed and encouraged in order to find new substances insecticidal plant and in this context essential oils have been shown to be very promising. Extracted from the essential oils of species Lindl Pimenta dioica (leaves) and Aniba duckei Kostermans (stems) by mean
Publicado em: 2009
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16. Efeitos antrÃpicos e variÃveis ambientais na formaÃÃo de um mosaico vegetacional em Floresta Estacional Semidecidual Montana em Itumirim, MG, Brasil / Anthropogenic effects and environmental variables in the formation of a vegetation mosaic in semideciduous seasonal forest montana in Itumirim, MG, Brasil.
The forest fragmentation is remarkable in the upper Rio Grande, southeastern Brazil, where is located the district of Itumirim. The study was performed in this region to compare trees from three sectors of a forest remnant on the basis of environmental variables and anthropogenic impacts occurring over time. The first sector suffered clear cutting and burnin
Publicado em: 2009
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17. Interaction between Methylobacterium extorquens and sugarcane (Saccharum sp.) / Interação entre Methylobacterium extorquens e cana-de-açúcar (Saccharum sp.)
Plants produce a variety of defense enzymes when colonized that can impair the microorganismsestablishment. This adverse condition in the host plant lead to a response from the microorganism, which is associated with the synthesis of a set of proteins and other molecules that affect the interaction with the host and shift the bacterial community associated.
Publicado em: 2008
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18. Variação temporal do componente lenhoso e de cactáceas de uma área de caatinga em Betânia/PE
Growth, recruitment and deaths of woody and cactus plants were monitored, along five years, in a caatinga community in a semiarid site, in Northeastern Brazil, with 511 mm and 25 oC average annual rainfall and temperature. All plants with stem diameter at soil level >3 cm, within one hectare, were marked and measured in 2001 and 2006. The number of species i
Publicado em: 2008
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19. Vibrational and Thermal Properties of Crystalline Topiramate / Propriedades Vibracionais e TÃrmicas do Topiramato Cristalino.
The scientific interest on molecular crystals stems from their great versatility and ease of processing. For pharmaceutically active ingredients, the structure-activity relationship is of major importance. Topiramate, a white and crystalline solid, is a powerful drug efficiently employed to control epilepsy symptoms. The mechanism of action involves a negati
Publicado em: 2008
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20. Fertilization of pre-planting on growth, production and quality of blackberry (Rubus sp.). / Adubação de pré-plantio no crescimento, produção e qualidade da amoreira-preta (Rubus sp.)
Blackberry is a temperate climate fruit that due to its rusticity, good yield, fast economic feedback and several options of market, it is a good alternative for small farms diversification. The objective of this work was to assess the effect of seven different pre-planting fertilizers on blackberries cultivars Tupy and Xavante. The experiment was carried ou
Publicado em: 2008
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21. Quantificação do estoque de biomassa e análise econômica da implementação de projetos visando a geração de créditos de carbono em pastagem, capoeira e floresta primária / Biomass stock estimation and economic analysis of implementation of projects seeking carbon credit generation in pastures, secondary and primary forests
The lack of studies on quantification of biomass and sequestered carbon in the Atlantic Forest biome and the increasing demand for Clean Development Mechanism (CDM) projects motivated the execution of this study, aiming at quantifying the biomass and carbon stock of an Atlantic Forest fragment and evaluating the economic viability of five scenarios (Afforest
Publicado em: 2007
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22. Características morfogênicas e estruturais e acúmulo de forragem do capim-tanzânia submetido a intensidades e freqüências de corte / Morpho-structural characteristics and forage accumulation of Tanzania grass subjected to different cutting intensities and frequencies
The experiment was conducted in an area of the Animal Science Department, at the Federal University of Viçosa - UFV, MG, from 17/12/2004 to 08/04/2005, with the objective of evaluating morpho-structural characteristics and forage accumulation of Panicum maximum cv. Tanzania under different cutting intensities and frequencies. Two heights (25 and 50 cm) and
Publicado em: 2007
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23. Dinâmica de inóculo de Alternaria solani, efeito da densidade de plantio na intensidade da pinta preta e requeima e previsão dessas doenças em tomateiro e batateira / Alternaria solani inoculum dynamics, effect of planting density in the intensity of early and late blight and systems of those diseases in tomato and potato
Several basic and applied epidemiological aspects, relative to early (Alternaria solani) and late (Phytophthora infestans) were studied to generate useful information for the management of these diseases in tomato and potato. The basic studies were conducted aiming to determine: dynamics of A. solani conidia in the air throughout the year; the survival of th
Publicado em: 2006
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24. ATIVIDADE ANTIBACTERIANA DO EXTRATO ETANÓLICO E ELUATOS DE Mimosa debilis
This study investigated the biological activity of etanolic extract of leaves and stem of Mimosa debilis (leguminosae). The eluate of etanolic extract (hexan, chloroform, etil acetate, acetone and methanol) were obtained for chromatography in silica gel column. The test of substance class revealed the presence of terpenes and steroids. The antibacterial acti
Publicado em: 2005