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Showing 1 to 20 of 166 for “"eucalyptus"”.
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Environmental correlates and associations of tuart (Eucalyptus gomphocephala) decline
Tuart (Eucalyptus gomphocephala DC.) is an ecologically and culturally important tree species that grows across a narrow 400 km long coastal belt, from the Sabrina River south of Perth, to Jurien Bay in the north. Unfortunately, Tuart is also a species under considerable threat due to clearing, …
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An analysis of correlated curve trend experiments in Eucalyptus grandis
Correlated curve trend (C.C.T.) experiments in Eucalyptus grandis on the Zululand coast of South Africa were analyzed. Growth parameters were described as functions of age using Schnute’s generalized growth function and parameter estimates were described as functions of stand density. Growth …
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Transcriptional responses of Eucalyptus clones to the gall wasp, Leptocybe invasa
Eucalyptus species constitute some of the most widely grown and economically important hardwood trees in global plantation forestry. This is due primarily to their remarkable growth and adaptability. Much of the initial success of exotic Eucalyptus plantations was attributed to the separation from …
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Qualidade da madeira de Eucalyptus para a produção de carvão vegetal
… vegetal provenientes de diferentes clones de Eucalyptus spp. Foram avaliados seis clones, aos 7,5 anos de idade, provenientes de um teste clonal de uma empresa florestal, localizado no município de Lassance, MG. Foram determinadas a densidade básica, relação cerne/ alburno, análise morfológica …
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Enxertia in vitro de clones de Eucalyptus urophylla x E. grandis
… in vitro na propagação de dois clones de Eucalyptus urophylla x E. grandis. Foram utilizados porta-enxertos juvenis obtidos de sementes de Eucalyptus urophylla e E. grandis, germinadas em condições assépticas. As avaliações foram realizadas quanto ao percentual de pegamento e crescimento …
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Interação entre monocários e dicários de Pisolithus sp. e Eucalyptus grandis
… e dicarióticos de Pisolithus sp.em Eucalyptus grandis, sob condições de casa-de-vegetação, e investigar as relações entre o estabelecimento da associação e o crescimento e a absorção de P, Ca, Mg, K, Cu e Zn pelas plantas. Caracterizou-se, também, a produção de massa seca micelial e …
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Pantoea and Xanthomonas species associated with blight and die-back of Eucalyptus
… identify the bacterial pathogens associated with Eucalyptus. However, as has been seen in various studies including this one, the identification of these pathogens is not always straightforward and often time consuming. In this study the use of polyphasic identification approach was used which …
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Die-back of cold tolerant Eucalyptus associated with Phytophthora spp.in South Africa
Thesis (PhD)--University of Pretoria, 2010.
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Diversity and spatial distribution of fungal endophytes in a Eucalyptus grandis tree
… community present in commercially important Eucalyptus grandis trees in South Africa. Two different experimental approaches were used. Firstly environmental bar-coding, or metagenetics, was done using 454-pyrosequencing parallel sequencing of the barcode amplicons of all the fungal isolates …
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Temporal composition of tannin and carbohydrate content in Eucalyptus leaves in South Africa
In South Africa, the genus Eucalyptus plays an important role as a plantation tree and hence forms a major economic component in the forest sector. An insect pest of these Eucalyptus species, Gonipterus scutellatus, causes periodic defoliation in the plantations. Plants have extraordinary array of …
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Propriedades de painéis tipo OSB, fabricados com flocos de Eucalyptus grandis tratados termicamente
… painéis OSB produzidos com flocos de madeira de Eucalyptus grandis tratados termicamente. Esses tratamentos foram realizados nas temperaturas de 180, 200 e 220 ºC, por 30, 60, 90 e 120 min, em autoclave com nitrogênio ou a vácuo. Os painéis foram produzidos com 8% do adesivo fenol-formaldeído e …
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Efeito das variáveis do tratamento térmico nas propriedades da madeira de Eucalyptus sp.
… propriedades termogravimétricas na madeira de Eucalyptus sp.. As madeiras foram termorretificadas em estufa com ambiente a vácuo, com nitrogênio e com vácuo e nitrogênio, nesta última combinação, aquecida com patamares de temperatura. As temperaturas utilizadas foram de 140, 180 e 220°C, e o …
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A molecular analysis of the population structure, mating system and demography of Eucalyptus
… the evolutionary forces affecting populations of Eucalyptus, with special emphasis on the compounds implicated in plant defence, notably terpenes. In Chapter 1, I explored the genetic structure in Eucalyptus globulus to understand how processes such as gene flow and genetic drift have shaped the …
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Taxonomy and autecology of the grey box (Eucalyptus moluccana roxb. s. lat.) - Myrtaceae
Grey box forms part of a woodland complex that is restricted to the eastern part of Australia from 170 to 35° S. Lat. and occurs within a range of about 1 x 106 km2. It is not an important timber species although it has some significant uses. It is of indirect importance as it is related to lands …
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A molecular analysis of the population structure, mating system and demography of Eucalyptus
… the evolutionary forces affecting populations of Eucalyptus, with special emphasis on the compounds implicated in plant defence, notably terpenes. In Chapter 1, I explored the genetic structure in Eucalyptus globulus to understand how processes such as gene flow and genetic drift have shaped the …
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