Saplings
Mostrando 13-24 de 47 artigos, teses e dissertações.
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13. cDNA-AFLP analysis of Psidium guajava L. cultivars under water stress and mechanical injury: methodological implications
Studies involving amplified fragment length polymorphism (cDNA-AFLP) have often used polyacrylamide gels with radiolabeled primers in order to establish best primer combinations, to analyze, and to recover transcript-derived fragments. Use of automatic sequencer to establish best primer combinations is convenient, because it saves time, reduces costs and ris
Braz. J. Plant Physiol.. Publicado em: 2012
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14. Biosolids: production, effects on eucalyptus seedlings growth, and assessment of human health risks / Biossólidos: produção, efeitos no crescimento de mudas de eucalipto e avaliação de risco à saúde humana
This work involved the production of biosolids by means of lime treatment and green house drying of UASB reactor sludge, the use of these biosolids to produce Eucalyptus urophylla seedlings, and an approach of microbiological risk assessment to estimate human health risks (occupational risks) associated with the production of the seedlings. In trials conduct
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2011
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15. Relações entre aves dispersoras de sementes e manchas florestais em matriz campestre na Serra do Sudeste, RS / Relations between seed dispersal birds and forest patches in grassland matrix in Serra do Sudeste, RS
Os ecossistemas de campo no sul do Brasil apresentam distribuição em mosaicos naturais com florestas, representadas por matas ciliares, manchas florestais, entre outras formações. Há uma tendência natural da expansão das áreas florestais sobre as campestres, e aves desempenham um papel importante nessa expansão ao levarem sementes de áreas-fonte (m
Publicado em: 2011
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16. Avaliação econômica e simulação em sistemas agroflorestais / Economic evaluation and simulation in agroforestry system
The general objective of this work was to analyse the economic viability of agroforestry systems using simulation attempting to identify the benefits and the aspects to be improved in them. Specifically, the plan was to survey the production costs of agroforestry system projects; to effect the financial analysis of these systems; and to effect the analyses o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/12/2010
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17. Biomass, nutritional status and ecological anatomy of saplings of tree species of Savannah and Semidecidous Forestof the Wst Paulista / Biomassa, apectos nutricionais e anatomicos de individuos jovens de especies arboreas de Cerradão e Floresta Estacional Semidecidual
O presente abordou aspectos da relação solo-planta, verificando o reflexo das condições físico-químicas e da disponibilidade hídrica do solo de áreas de Cerradão (Ce) e de Floresta Estacional Semidecidual (FES), sobre a anatomia do xilema secundário, sobre aspectos morfológicos (comprimento e a biomassa de parte aérea e de raízes), e sobre o teo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/01/2010
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18. Cloning and endogenous expression of a Eucalyptus grandis UDP-glucose dehydrogenase cDNA
UDP-glucose dehydrogenase (UGDH) catalyzes the oxidation of UDP-glucose (UDP-Glc) to UDP-glucuronate (UDP-GlcA), a key sugar nucleotide involved in the biosynthesis of plant cell wall polysaccharides. A full-length cDNA fragment coding for UGDH was cloned from the cambial region of 6-month-old E. grandis saplings by RT-PCR. The 1443-bp-ORF encodes a protein
Genetics and Molecular Biology. Publicado em: 24/09/2010
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19. Assesment of urban arborization in Plano Piloto / Avaliação da arborização urbana do Plano Piloto
The assesment of urban arborization in the cities helps in the planning and administration of the urban green areas, in search of better life conditions to the city dwellers. In Brasília, urban arborization was recorded through the census of the trees, DBH ≥5 cm, in 39 superquadras (SQs) ten of which were planted with trees in the sixties, seventies,
Publicado em: 2010
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20. Efeito da sazonalidade da precipitação no crescimento e trocas gasosas em espécies arbóreas numa floresta de terra-firme da Amazônia Central
The objectives of this study were to determine the effect of the rainfall pattern on growth and leaf gas exchange in saplings of ten tree species in a terra-firma rainforest of Central Amazonia. I also studied the effect of diurnal variation on photosynthetic rates (A), and the relationship between A and growth rates of saplings. The study was conducted at t
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/07/2009
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21. Transplante de plântulas e plantas jovens como estratégia de produção de mudas para a restauração de áreas degradadas / Seedlings and saplingstransplantation as an strategy of planting stock production for ecological restoration
The transplantation of young individuals occurring under forest canopy as an strategy of planting stock production for ecological restoration is recent in Brazil. Among its most important advantages we highlight the collection of a high number of species (usually not available in nurseries), the elimination of unknown or expensive nurseriesproceedings (seeds
Publicado em: 2008
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22. Physiological, biochemical and histochemical evaluations of Ipomoea pes-caprae cultivated at different concentrations of iron / Avaliações fisiológicas, bioquímicas e histoquímica de Ipomoea pes-caprae cultivada em diferentes concentrações de ferro
The aim of this study was to evaluate the effects of excess iron over Ipomoea pescaprae, a native species common to Restinga. Saplings presenting three pairs of leaves were grown under 2, 3, 4 and 5 mM Fe-EDTA concentrations in Hoagland solution at half strength. After seven days, it was evaluated the accumulation of iron in plant tissues, alterations in the
Publicado em: 2008
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23. Estudo do potencial de regeneração natural : uma análise da chuva de sementes e do estrato regenerante da vegetação ciliar na bacia hidrográfica do rio Taperoá, semiárido paraibano, Brasil
Objetivou-se estudar a regeneração natural em uma área ciliar de Caatinga na bacia do rio Taperoá, semi-árido paraibano. A pesquisa foi realizada no período de janeiro/2005 a abril/2007 e abrangeu a área ribeirinha do riacho do Cazuzinha (72613S e 365430W; 564-579 m de altitude). Nesse sentido, o trabalho compreendeu as seguintes etapas: 1) caracteriz
Publicado em: 2008
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24. Biometria dos frutos e sementes, germinaÃÃo e crescimento de plÃntulas e plantas jovens de 15 espÃcies lenhosas de leguminosae da Caatinga de Alagoinha-PE
(Seed and fruits biometry, germination and growth of seedlings and saplings of 15 woody Leguminosae species from Alagoinha-PE caatinga). In spite of the lack of data about qualitatives and quantitatives features, germination strategies and initial growth of caatinga species aiming morphological and ecological studies, 15 woody Leguminosae species with mature
Publicado em: 2003