Clonal Plantations
Mostrando 1-12 de 13 artigos, teses e dissertações.
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1. CHARACTERIZATION OF INJURY CAUSED BY Coptotermes testaceus IN Tectona grandis PLANTATIONS IN BRAZIL
ABSTRACT Coptotermes testaceus (Linnaeus, 1758) is the most important species of heartwood termite of adult trees in forests planted in Brazil. This study aimed to characterize the injuries promoted by the heartwood termite C. testaceus in Tectona grandis commercial stands. Tree bark with extend carton material on the outside, forming external galleries and
CERNE. Publicado em: 2020-09
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2. Gas exchange, root hydraulic conductivity, water use efficiency and the growth of Toona ciliata clones and seedlings
Resumo As plantações florestais estabelecidas com mudas apresentam heterogeneidade e dificuldades de manejo. Assim, uma alternativa a estes obstáculos é o uso de clones com alta produtividade. Além disso, as plantas clonais diferem das plantas seminíferas na estrutura do sistema radicular, o que pode influenciar a eficiência na absorção de água e d
Ciênc. Florest.. Publicado em: 30/09/2019
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3. Índices de vegetação para a estimativa do índice de área foliar em plantios clonais de Eucalyptus saligna Smith
Resumo Procurou-se estabelecer a relação entre o Índice de área foliar no campo (IAFc) de plantios clonais de Eucalyptus saligna Smith e três diferentes Índices de Vegetação (IV) obtidos de uma imagem Landsat 8/OLI: Índice de Vegetação da Diferença Normalizada (Normalized Difference Vegetation Index, em inglês - NDVI), Índice da Razão Simples
Ciênc. Florest.. Publicado em: 30/09/2019
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4. Biomass Deposition and Chemical Composition of Litterfall in Clonal Eucalyptus Plantations
ABSTRACT Productivity in clonal eucalyptus plantations depends on the genetic material and on the demand and cycling of nutrients, making studies that evaluate these requirements necessary. The aim of this study was to evaluate the effect of management (with and without thinning) on the deposition, chemical composition and nutrient contribution in litter at
Floresta Ambient.. Publicado em: 04/04/2019
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5. Thinning regimes and initial spacing for Eucalyptus plantations in Brazil
ABSTRACT This study focuses on the effects of different thinning regimes on clonal Eucalyptus plantations growth. Four different trials, planted in 1999 and located in Bahia and Espírito Santo States, were used. Aside from thinning, initial planting density, and post thinning fertilization application were also evaluated. Before canopy closure, and therefor
An. Acad. Bras. Ciênc.. Publicado em: 05/02/2018
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6. Contribution of Eucalyptus Harvest Residues and Nitrogen Fertilization to Carbon Stabilization in Ultisols of Southern Bahia
ABSTRACT: Eucalyptus forests in southern Bahia (BA) are planted in soils with a sandy surface layer and humid tropical climate, conditions that lead to soil carbon (C) decomposition. Recent studies have shown that nitrogen (N) may be important for soil C stabilization. The aim of this study was to evaluate the contribution of Eucalyptus harvest residues and
Rev. Bras. Ciênc. Solo. Publicado em: 01/02/2018
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7. Genetic parameters estimates and visual selection for leaves production in Ilex paraguariensis
ABSTRACT The selection of yerba mate superior genotypes, based on each plant leaf weight, is based on genetic parameters obtained from experimental plantations and it is practically impossible from the fourth year of age. Therefore, we estimate genetic parameters and check the feasibility of selection through notes and weight estimates of each tree at 18.5 y
Bragantia. Publicado em: 14/08/2017
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8. Estimating foliar nitrogen in Eucalyptus using vegetation indexes
ABSTRACT Nitrogen (N) has commonly been applied in Eucalyptus stands in Brazil and it has a direct relation with biomass production and chlorophyll content. Foliar N concentrations are used to diagnose soil and plant fertility levels and to develop N fertilizer application rates. Normally, foliar N is obtained using destructive methods, but indirect analyses
Sci. agric. (Piracicaba, Braz.). Publicado em: 2017-04
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9. Uso do inventário florestal como ferramenta de monitoramento da qualidade silvicultura em povoamentos clonais de Eucalyptus / Using the forest inventory as a tool of monitoring silvicultural quality in Eucalyptus clonal plantations
A produtividade florestal é definida pelo ambiente de produção em que o povoamento está inserido, pela implantação de materiais genéticos superiores e pelo seu correto manejo silvicultural. A correta prescrição de recomendações silviculturais e a execução das operações de maneira padronizada tem por objetivo eliminar ou minimizar as restriçõ
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/06/2012
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10. Analysis of the airborne laser scanning technology use for forest inventories in cloned Eucalyptus sp plantations in the southern Bahia. / Análise do uso da tecnologia laser aerotransportado para inventários florestais em plantios clonais de Eucalyptus sp no sul da Bahia
The application of the airborne laser scanning (ALS) technology for forest inventories execution, have been presented as an excellent alternative to the forest planning area, particularly by the excellent results in terms of accuracy of the estimates, by the facilities of usage and other products and benefits derived from LASER overflight. The technology evo
Publicado em: 2009
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11. Fractions of organic matter and decomposition of eucalypt harvest residues in Coastal Plain soils of Bahia, Brazil / Frações da matéria orgânica e decomposição de resíduos da colheita de eucalipto em solos de Tabuleiros Costeiros da Bahia
Eucalypt is the most planted tree in Brazil and to maintain a sustainable forest production it is fundamental do understand the processes of litter decomposition and the impact of eucalypt cultivation on soil organic matter (SOM) fractions. The conversion of planted pastures in eucalypt plantations alters the labile and humified pools of SOM, but little is k
Publicado em: 2008
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12. Ganhos de produtividade de plantações clonais de Eucalyptus urophylla e suas correlações com variáveis edafoclimáticas e silviculturais / Productivity gains in Eucalyptus urophylla clonal plantations and its correlation with soil, climate and stand variables
O manejo nutricional de plantios de Eucalyptus é comprovadamente importante para o aumento da produtividade e da sustentabilidade da produção madeireira. Uma das principais formas de manejo nutricional da floresta é a fertilização mineral, que demanda grandes investimentos e necessita de um planejamento adequado. O conhecimento do valor e da escala da
Publicado em: 2007