Gotowe bibliografie tematyczne / Eucalyptus

Gotowa bibliografia na temat „Eucalyptus”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 30 lipca 2024

Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych

Wybierz rodzaj źródła:

Spis treści

Zobacz listy aktualnych artykułów, książek, rozpraw, streszczeń i innych źródeł naukowych na temat „Eucalyptus”.

Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.

Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.

Artykuły w czasopismach na temat "Eucalyptus"

1

Wu, Yi Qiang, Hayashi Kazuo i Ying Chun Cai. "Collapse-Type Shrinkage in Plantation-Grown Eucalyptus Cells When Subjected to Heat-Steam Treatment". Materials Science Forum 620-622 (kwiecień 2009): 217–20. http://dx.doi.org/10.4028/www.scientific.net/msf.620-622.217.

Pełny tekst źródła
Streszczenie:
Collapse-type shrinkage in plantation-grown Eucalyptus cells is a bottleneck to severely restrict its high-effective utilization as environment-friendly solid-wood products. So, measurement of collapse-shrinkage parameters on seven species of Eucalypts (Eucalyptus urophylla, E.grandis, E.urophylla×grandis, E.grandis ×urophylla, E. dunnii, E. cloeziana and E. pellita) have been carried out under three kinds of treated patterns (heating, steaming and combined treatment) by means of image analysis technique. The results indicated that the total shrinkage and residual collapse increase obviously with heating temperature and steaming time for five species of low-density eucalypts(E.urophylla, E.grandis, E.urophylla×grandis, E.grandis ×urophylla and E. dunnii), while increase slightly for other two species of higher-density Eucalypts (E.cloeziana and E.pellita). Combined treatment has not made the total shrinkage and residual collapse take on the additive trend, especially for higher-density Eucalyptus. Therefore, the results will provide the important practical significance for the reasonable processing of plantation-grown eucalypt wood.
Style APA, Harvard, Vancouver, ISO itp.
2

McCarthy, Andrew. "Eucalypt Ecology: Individuals to Ecosystems". Pacific Conservation Biology 4, nr 2 (1998): 174. http://dx.doi.org/10.1071/pc980174.

Pełny tekst źródła
Streszczenie:
Eucalypt ecologists in Australia finally have a text that is a comprehensive review of the current state of knowledge on eucalypt ecology. This book incorporates and expands on ideas found in Eucalyptus, the Universal Australian by Pryor and Johnson (1981) and Pryor's (1976) The Biology of Eucalypts.
Style APA, Harvard, Vancouver, ISO itp.
3

Bayly, Michael J. "Phylogenetic studies of eucalypts: fossils, morphology and genomes". Proceedings of the Royal Society of Victoria 128, nr 1 (2016): 12. http://dx.doi.org/10.1071/rs16002.

Pełny tekst źródła
Streszczenie:
The eucalypt group includes seven genera: Eucalyptus, Corymbia, Angophora, Eucalyptopsis, Stockwellia, Allosyncarpia and Arillastrum. Knowledge of eucalypt phylogeny underpins classification of the group, and facilitates understanding of their ecology, conservation and economic use, as well as providing insight into the history of Australia’s flora. Studies of fossils and phylogenetic analyses of morphological and molecular data have made substantial contributions to understanding of eucalypt relationships and biogeography, but relationships among some genera are still uncertain, and there is controversy about generic circumscription of the bloodwood eucalypts (genus Corymbia). Relationships at lower taxonomic levels, e.g. among sections and series of Eucalyptus, are also not well resolved. Recent advances in DNA sequencing methods offer the ability to obtain large genomic datasets that will enable improved understanding of eucalypt evolution.
Style APA, Harvard, Vancouver, ISO itp.
4

Espinosa-García, Francisco J. "Revisión sobre la alelopatía de Eucalyptus L'Herit". Botanical Sciences, nr 58 (27.04.2017): 55. http://dx.doi.org/10.17129/botsci.1487.

Pełny tekst źródła
Streszczenie:
Some eucalyptus species can be associated to the production of zones where vegetation is absent, sparse and/or less diverse and vigorous than surrounding zones away from eucalypts. These zones have been documented with eucalypts growing as native or introduced species. Yield reduction and poor plant performance is frequent when some crops, annual or perennial, are planted within or around eucalypt stands. Although competition for water, light and nutrients can explain some of these inhibition patterns, it is insufficient to explain others. Field evidence suggests that allelopathy explains, at least partially, the aforementioned inhibition areas. Inhibition zones are absent where the soil does not accumulate allelochemicals and the watering or rainy regime leaches them out, or the plants surronding eucalypts are unaffected by the chemicals. Phenolic acids, tannins, flavonoids and/or terpenoids have been isolated from eucalypt bark, litter and leaves; leaf hates or extracts from these parts have been shown to be phytotoxic in vitro and in greenhouse experiments for most target speciestested. Allelochemicals are normally released, from intact, dead or alive, eucalypt tissues and accumulated in water or soil in concentrations high enough to produce allelopathic effects. Milled or chopped eucalypt parts release more allelochemicals and faster than intact parts. Although no published work contains a li the undisputed evidence required to demonstrate eucalypts allelopathy, the body of evidence in the published works suggests that some eucalypt species do produce allelopathic effects in natural conditions.
Style APA, Harvard, Vancouver, ISO itp.
5

Coutinho, T. A., M. J. Wingfield, A. C. Alfenas i P. W. Crous. "Eucalyptus Rust: A Disease with the Potential for Serious International Implications". Plant Disease 82, nr 7 (lipiec 1998): 819–25. http://dx.doi.org/10.1094/pdis.1998.82.7.819.

Pełny tekst źródła
Streszczenie:
Eucalyptus spp. are propagated extensively as non-natives in plantations in many parts of the tropics and sub-tropics. A number of diseases result in serious losses to this economically important forest resource. Eucalyptus rust, caused by Puccinia psidii, is one such example. The economic losses due to this disease are the result of infections of seedlings, young trees, and coppice. P. psidii occurs predominately in Central and South America, but reports of a similar rust are known from other areas. Eucalyptus rust is a remarkable disease in that the pathogen is not known on eucalypts in their centers of origin. It has apparently originated on native Myrtaceae in South America and is highly infective on some Eucalyptus spp. planted there. P. psidii causes one of the most serious forestry diseases in Brazil and is considered to be the most serious threat to eucalypt plantations worldwide. Advances in eucalyptus rust research are reviewed here, with a focus on topics such as distribution, host range, pathogen specialization, symptomatology, etiology, epidemiology, and control.
Style APA, Harvard, Vancouver, ISO itp.
6

Majer, Jonathan D., i Harry F. Recher. "Are eucalypts Brazil's friend or foe? An entomological viewpoint". Anais da Sociedade Entomológica do Brasil 28, nr 2 (czerwiec 1999): 185–200. http://dx.doi.org/10.1590/s0301-80591999000200001.

Pełny tekst źródła
Streszczenie:
Vast areas of Brazil are being planted to Eucalyptus in order to provide renewable sources of timber, charcoal and cellulose. Although the rapid growth and productivity of various Eucalyptus species undoubtedly relaxes the pressure on logging of native forests, there are ecological costs. Firstly, some eucalypt species are vulnerable to pest outbreaks. A large number of native Lepidoptera, Coleoptera and leaf-cutting ants (Atta spp.), some of which have become pests, have been found on eucalypts growing in Brazil. Probably, the diverse myrtaceous flora of South America supports a fauna that can adapt to the introduced Eucalyptus species. Secondly, the leaf litter produced under Eucalyptus plantations differs substantially from that of native forests both in terms of its physical structure and chemistry, posing a range of problems for the native decomposer fauna. If microarthropod diversity is reduced, nutrient cycling could be impeded under eucalypt plantations. Thirdly, native forest canopies support a massive diversity and biomass of arthropods on which many birds, reptiles and mammals depend for food. The evidence is that invertebrate biomass and diversity are greatly reduced in the canopies of exotic eucalypt plantations. This, in turn, reduces the food-base on which forest arthropods and other animals depend, and hence their conservation status. This paper reviews the evidence for adverse ecological effects in Brazilian eucalypt plantations and suggests ways in which Brazil might meet its forestry needs, while conserving forest invertebrates and the vertebrates that depend on them.
Style APA, Harvard, Vancouver, ISO itp.
7

Macphail, Mike, i Andrew H. Thornhill. "How old are the eucalypts? A review of the microfossil and phylogenetic evidence". Australian Journal of Botany 64, nr 8 (2016): 579. http://dx.doi.org/10.1071/bt16124.

Pełny tekst źródła
Streszczenie:
Molecular age estimates for the Eucalypteae (family Myrtaceae) suggest that the eucalypts, possibly associated with fire, have been present for ~65 million years. In contrast, macrofossils and fossil pollen attributable to three important eucalypt genera (Angophora, Corymbia and Eucalyptus) in the Eucalypteae date to ~51–53 million years ago (mid-Early Eocene) in Patagonia, eastern Antarctica and south-eastern Australia. At present, there is no fossil evidence to show that eucalypts had evolved before this epoch, i.e. when Australia was part of eastern Gondwana, although this seems probable on the basis of molecular-dated phylogenetic analyses. The primary reason is the absence of macrofossils, whereas the earliest fossil eucalypt-type pollen recorded (Myrtaceidites tenuis) is attributed to Angophora and Corymbia, not Eucalyptus. This pollen type is recorded in Australia and Antarctica but not in New Zealand or South America. The only Myrtaceidites morphospecies found in Upper Cretaceous and Paleocene deposits in Australia is M. parvus, whose affinity lies with multiple extant Myrtaceae groups other than the Eucalypteae. In the present paper, we review current phylogenetic and microfossil databases for the eucalypts and assess this evidence to develop a ‘consensus’ position on the origin and evolution of the eucalypts in the Australian region.
Style APA, Harvard, Vancouver, ISO itp.
8

Delucis, Rafael De Avila, i Darci Alberto Gatto. "Flexural properties of four fast-growing eucalypts woods deteriorated by three different field tests". Acta Scientiarum. Technology 39, nr 1 (24.02.2017): 39. http://dx.doi.org/10.4025/actascitechnol.v39i1.27067.

Pełny tekst źródła
Streszczenie:
Durability is a wood characteristic determined by several factors, making it difficult to investigate the service life of pieces designated for outdoor use. In this study, the decaying of juvenile and adult woods of four fast-growing eucalypts from southern Brazil subjected to three different exposure environments was monitored through mechanical properties (flexural test). The study material was obtained from adult trees of Eucalyptus botryoides, Corymbia citriodora, Eucalyptus paniculata and Eucalyptus tereticornis. Field tests were conducted in the city of Piratini, southern Brazil, and samplings were carried out during 540 days of experiment. Comparing the four eucalypts, the decreasing order of biological resistance was: Eucalyptus tereticornis, Corymbia citriodora, Eucalyptus paniculata and Eucalyptus botryoides. The mature wood showed greater and more stable physical-mechanical properties than juvenile wood.
Style APA, Harvard, Vancouver, ISO itp.
9

McKinnon, Gay E., Gregory J. Jordan, René E. Vaillancourt, Dorothy A. Steane i Brad M. Potts. "Glacial refugia and reticulate evolution: the case of the Tasmanian eucalypts". Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 359, nr 1442 (29.02.2004): 275–84. http://dx.doi.org/10.1098/rstb.2003.1391.

Pełny tekst źródła
Streszczenie:
Tasmania is a natural laboratory for investigating the evolutionary processes of the Quaternary. It is a large island lying 40–44° S, which was repeatedly glaciated and linked to southeastern continental Australia during the Quaternary. Climate change promoted both the isolation of species in glacial refugia, and an exchange between Tasmanian and mainland floras. Eucalyptus is a complex and diverse genus, which has increased in abundance in Australia over the past 100 kyr, probably in response to higher fire frequency. Morphological evidence suggests that gene flow may have occurred between many eucalypt species after changes in their distribution during the Quaternary. This paper summarizes recent genetic evidence for migration and introgressive hybridization in Tasmanian Eucalyptus . Maternally inherited chloroplast DNA reveals a long–term persistence of eucalypts in southeastern Tasmanian refugia, coupled with introgressive hybridization involving many species. Detailed analysis of the widespread species Eucalyptus globulus suggests that migration from mainland Australia was followed by introgression involving a rare Tasmanian endemic. The data support the hypothesis that changes in distribution of interfertile species during the Quaternary have promoted reticulate evolution in Eucalyptus .
Style APA, Harvard, Vancouver, ISO itp.
10

W. HART, PETER, i RICARDO B. SANTOS. "Changing the face of short fiber –a review of the eucalyptus revolution". June 2015 14, nr 6 (1.07.2015): 353–59. http://dx.doi.org/10.32964/tj14.6.353.

Pełny tekst źródła
Streszczenie:
Eucalyptus plantations have been used as a source of short fiber for papermaking for more than 40 years. The development in genetic improvement and clonal programs has produced improved density plantations that have resulted in fast growing, increased fiber volume eucalypts becoming the most widely used source of short fibers in the world. High productivity and short rotation times, along with the uniformity and improved wood quality of clonal plantations have attracted private industry investment in eucalypt plantations. Currently, only a handful of species or hybrids are used in plantation efforts. Many more species are being evaluated to either enhance fiber properties or expand the range of eucalypt plantations. Eucalyptus plantations are frequently planted on nonforested land and may be used, in part, as a means of conserving native forests while allowing the production of high quality fiber for economic uses. Finally, eucalypt plantations can provide significant carbon sinks, which may be used to help offset the carbon released from burning fossil fuels. The development and expansion of eucalypt plantations represents a substantial revolution in pulp and paper manufacturing.
Style APA, Harvard, Vancouver, ISO itp.
Więcej źródeł

Rozprawy doktorskie na temat "Eucalyptus"

1

Holman, James, i n/a. "Clines, Species and Eucalypts: An Evolutionary Perspective". Griffith University. Australian School of Environmental Studies, 2003. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20030527.124144.

Pełny tekst źródła
Streszczenie:
Two eucalypt clines were examined using morphological, ecophysiological and molecular analyses. The species complexes examined were an ironbark complex (Eucalyptus melanophloia x E. whitei) and a box complex (E. brownii x E. populnea). Both of these complexes demonstrate continuous morphological variation across their clines. The origin of these morphological clines has previously been interpreted as the product of secondary contact between allopatric species. In this study, an analysis of morphological variation across the clines did not identify an increase in trait variance in the intermediate populations, which suggests that previous theories concerning the origin of these clines may not be valid. Genetic structuring in nuclear and chloroplast DNA was examined across the clines to investigate whether the morphological clines were the product of secondary contact between two independent evolutionary lineages, or whether the clines represent a single evolutionary lineage that has undergone primary differentiation. The microsatellite analyses indicated that there was little genetic structuring across either cline, and that there were only low levels of population differentiation. The lack of hierarchical structuring in the distribution of nuclear genetic variation suggests that these clines are unlikely to be the product of recent gene flow between two formerly allopatric species/populations. A nested clade analysis of the JLA+ region of the cpDNA provides additional evidence to reject the null hypothesis that the morphospecies classifications represent distinct evolutionary lineages. Instead the analyses indicate that each cline represents a single cohesion species and a single evolutionary lineage. The phylogeographic distribution of cpDNA haplotypes is likely to have resulted from restricted seed mediated gene flow with isolation by distance. A more cogent explanation for the clines, based on the genetic data, is that they have arisen through the process of continuous morphological diversification that has been promoted by a directional selection gradient. Drought experiments were conducted in the glasshouse to investigate whether differences in physiological performance under water stress helps to explain the maintenance of the ironbark cline. Under increasing water stress, the morphotypes showed differences in their ability to maintain water status and photosynthetic rates, yet there was no obvious pattern to these differences across the cline. Physiological differences are therefore inadequate to explain the maintenance of the ironbark cline and highlight the compensatory role that morphological variation may play in alleviating water stress. The value of adopting the cohesion species concept and a hypothesis-testing framework to assess species status is demonstrated in this study. This framework provided a statistical approach to distinguish independent evolutionary lineages from interspecific populations and provides evidence to refute the current species status of the species complexes studied. Eucalypt classification is predominantly based on morphology, which results in taxonomic classification that may not reflect genealogical relationships. This is due to the disparity between morphological and phylogenetic relationships. I therefore suggest that current presumptions regarding the prevalence and importance of hybridisation within the genus may reflect taxonomic classification. An accurate assessment of the prevalence and importance of hybridisation requires species classification to be based on genealogical relationships.
Style APA, Harvard, Vancouver, ISO itp.
2

Holman, James. "Clines, Species and Eucalypts: An Evolutionary Perspective". Thesis, Griffith University, 2003. http://hdl.handle.net/10072/365394.

Pełny tekst źródła
Streszczenie:
Two eucalypt clines were examined using morphological, ecophysiological and molecular analyses. The species complexes examined were an ironbark complex (Eucalyptus melanophloia x E. whitei) and a box complex (E. brownii x E. populnea). Both of these complexes demonstrate continuous morphological variation across their clines. The origin of these morphological clines has previously been interpreted as the product of secondary contact between allopatric species. In this study, an analysis of morphological variation across the clines did not identify an increase in trait variance in the intermediate populations, which suggests that previous theories concerning the origin of these clines may not be valid. Genetic structuring in nuclear and chloroplast DNA was examined across the clines to investigate whether the morphological clines were the product of secondary contact between two independent evolutionary lineages, or whether the clines represent a single evolutionary lineage that has undergone primary differentiation. The microsatellite analyses indicated that there was little genetic structuring across either cline, and that there were only low levels of population differentiation. The lack of hierarchical structuring in the distribution of nuclear genetic variation suggests that these clines are unlikely to be the product of recent gene flow between two formerly allopatric species/populations. A nested clade analysis of the JLA+ region of the cpDNA provides additional evidence to reject the null hypothesis that the morphospecies classifications represent distinct evolutionary lineages. Instead the analyses indicate that each cline represents a single cohesion species and a single evolutionary lineage. The phylogeographic distribution of cpDNA haplotypes is likely to have resulted from restricted seed mediated gene flow with isolation by distance. A more cogent explanation for the clines, based on the genetic data, is that they have arisen through the process of continuous morphological diversification that has been promoted by a directional selection gradient. Drought experiments were conducted in the glasshouse to investigate whether differences in physiological performance under water stress helps to explain the maintenance of the ironbark cline. Under increasing water stress, the morphotypes showed differences in their ability to maintain water status and photosynthetic rates, yet there was no obvious pattern to these differences across the cline. Physiological differences are therefore inadequate to explain the maintenance of the ironbark cline and highlight the compensatory role that morphological variation may play in alleviating water stress. The value of adopting the cohesion species concept and a hypothesis-testing framework to assess species status is demonstrated in this study. This framework provided a statistical approach to distinguish independent evolutionary lineages from interspecific populations and provides evidence to refute the current species status of the species complexes studied. Eucalypt classification is predominantly based on morphology, which results in taxonomic classification that may not reflect genealogical relationships. This is due to the disparity between morphological and phylogenetic relationships. I therefore suggest that current presumptions regarding the prevalence and importance of hybridisation within the genus may reflect taxonomic classification. An accurate assessment of the prevalence and importance of hybridisation requires species classification to be based on genealogical relationships.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Australian School of Environmental Studies
Full Text
Style APA, Harvard, Vancouver, ISO itp.
3

Jackson, Sarah. "Infection of Eucalyptus globulus, Eucalyptus diversicolor, Eucalyptus marginata and Corymbia calophylla by Mycosphaerella species". Thesis, Jackson, Sarah (2001) Infection of Eucalyptus globulus, Eucalyptus diversicolor, Eucalyptus marginata and Corymbia calophylla by Mycosphaerella species. Honours thesis, Murdoch University, 2001. https://researchrepository.murdoch.edu.au/id/eprint/32765/.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

King, Rachel, i n/a. "Spatial Structure and Population Genetic Variation in a Eucalypt Species Complex". Griffith University. Australian School of Environmental Studies, 2004. http://www4.gu.edu.au:8080/adt-root/public/adt-QGU20050113.091713.

Pełny tekst źródła
Streszczenie:
In this study, the relative influences of selection, gene flow, and other evolutionary forces on the spatial structure of genetic variation within a eucalypt species complex (the spotted gums: genus Corymbia, section Politaria) were assessed. The study investigated the spatial genetic structure among four putative species of spotted gum (broad-scale), as well as within a single population (fine-scale)of one species, using both molecular and quantitative markers. The spotted gum complex occurs naturally across a range of 2500 km in eastern Australia. Spatial genetic variation within and between the four putative spotted gum species was examined using both chloroplast and nuclear markers. No significant differentiation was found between the three northern species of the complex, C. citriodora, C. variegata and C. henryi. The southern species, C. maculata, shared no haplotypes with any of the three northern species. These results disagree in part with those reported in a previous allozyme based study in which C. henryi was found to be significantly divergent from C. variegata (with which it is sympatric) and more closely aligned with C. maculata. Re-analysis of the allozyme data provided evidence of selection acting at the PGM2 locus within populations of C. variegata and C. henryi. The exclusion of this locus from the data set led to concordance between the cpDNA and nDNA analyses. Restricted gene flow and evidence of isolation by distance were identified as the dominant processes influencing the contemporary distribution of the cpDNA haplotypes. No geographic structure of haplotypes was found and complex genealogical relationships between haplotypes indicated the combined effects of past fragmentation, range expansion and possible long distance dispersal events. The variation and spatial structure in both neutral molecular markers and quantitative genetic traits were compared to explore the relative influences of dispersal and selection within a single eucalypt population. Both mature trees (n=130) from a natural population of C. variegata and their progeny (n=127) were sampled. A very high outcrossing rate (98%) was estimated for the population based on data from seven microsatellite loci. This suggested regular pollen–mediated gene flow into the population, further supported by the observed high levels of genetic diversity and polymorphism. Significant positive spatial structure was found between parent trees occurring up to 150 m apart in the natural forest, although genetic distance between these individuals suggested limited relatedness (i.e. less than half-sib relatedness). The effect of pollen-mediated gene flow appears, therefore, to swamp any effect of nearest neighbour inbreeding which has been reported in other studies of eucalypt populations and has been attributed to limited seed dispersal. Resistance to the fungal disease Sporothrix pitereka (Ramularia Shoot Blight) was measured on progeny from each of the population study trees. Substantial resistance variability was found, along with a high estimate in heritability of resistance (0.44 ± 0.06), indicating significant additive genetic variation within the population. Spatial analysis showed no significant spatial structure with resistant and susceptible genotypes apparently distributed randomly throughout the population. The lack of concordance between the molecular and quantitative markers suggests that there may be a cost to resistance. Temporal variation in the severity of disease outbreaks may have then led to differential selection of seedlings across many generations, maintaining variability in disease resistance and facilitating the apparent random distribution of disease resistant and susceptible genotypes throughout the population. C. variegata is an important commercial forestry species. The identification of strong genetic control in the disease resistance trait, as well as significant adverse genetic and phenotypic correlations between susceptibility and growth traits, will aid future breeding programs. Controlled crosses between resistant genotypes from this population should result in strong genetic gains in both resistance and growth, with little costs associated with inbreeding depression due to the highly outcrossed nature of the population.
Style APA, Harvard, Vancouver, ISO itp.
5

King, Rachel. "Spatial Structure and Population Genetic Variation in a Eucalypt Species Complex". Thesis, Griffith University, 2004. http://hdl.handle.net/10072/365496.

Pełny tekst źródła
Streszczenie:
In this study, the relative influences of selection, gene flow, and other evolutionary forces on the spatial structure of genetic variation within a eucalypt species complex (the spotted gums: genus Corymbia, section Politaria) were assessed. The study investigated the spatial genetic structure among four putative species of spotted gum (broad-scale), as well as within a single population (fine-scale)of one species, using both molecular and quantitative markers. The spotted gum complex occurs naturally across a range of 2500 km in eastern Australia. Spatial genetic variation within and between the four putative spotted gum species was examined using both chloroplast and nuclear markers. No significant differentiation was found between the three northern species of the complex, C. citriodora, C. variegata and C. henryi. The southern species, C. maculata, shared no haplotypes with any of the three northern species. These results disagree in part with those reported in a previous allozyme based study in which C. henryi was found to be significantly divergent from C. variegata (with which it is sympatric) and more closely aligned with C. maculata. Re-analysis of the allozyme data provided evidence of selection acting at the PGM2 locus within populations of C. variegata and C. henryi. The exclusion of this locus from the data set led to concordance between the cpDNA and nDNA analyses. Restricted gene flow and evidence of isolation by distance were identified as the dominant processes influencing the contemporary distribution of the cpDNA haplotypes. No geographic structure of haplotypes was found and complex genealogical relationships between haplotypes indicated the combined effects of past fragmentation, range expansion and possible long distance dispersal events. The variation and spatial structure in both neutral molecular markers and quantitative genetic traits were compared to explore the relative influences of dispersal and selection within a single eucalypt population. Both mature trees (n=130) from a natural population of C. variegata and their progeny (n=127) were sampled. A very high outcrossing rate (98%) was estimated for the population based on data from seven microsatellite loci. This suggested regular pollen–mediated gene flow into the population, further supported by the observed high levels of genetic diversity and polymorphism. Significant positive spatial structure was found between parent trees occurring up to 150 m apart in the natural forest, although genetic distance between these individuals suggested limited relatedness (i.e. less than half-sib relatedness). The effect of pollen-mediated gene flow appears, therefore, to swamp any effect of nearest neighbour inbreeding which has been reported in other studies of eucalypt populations and has been attributed to limited seed dispersal. Resistance to the fungal disease Sporothrix pitereka (Ramularia Shoot Blight) was measured on progeny from each of the population study trees. Substantial resistance variability was found, along with a high estimate in heritability of resistance (0.44 ± 0.06), indicating significant additive genetic variation within the population. Spatial analysis showed no significant spatial structure with resistant and susceptible genotypes apparently distributed randomly throughout the population. The lack of concordance between the molecular and quantitative markers suggests that there may be a cost to resistance. Temporal variation in the severity of disease outbreaks may have then led to differential selection of seedlings across many generations, maintaining variability in disease resistance and facilitating the apparent random distribution of disease resistant and susceptible genotypes throughout the population. C. variegata is an important commercial forestry species. The identification of strong genetic control in the disease resistance trait, as well as significant adverse genetic and phenotypic correlations between susceptibility and growth traits, will aid future breeding programs. Controlled crosses between resistant genotypes from this population should result in strong genetic gains in both resistance and growth, with little costs associated with inbreeding depression due to the highly outcrossed nature of the population.
Thesis (PhD Doctorate)
Doctor of Philosophy (PhD)
Australian School of Environmental Studies
Full Text
Style APA, Harvard, Vancouver, ISO itp.
6

Ngugi, Michael R. "Physiological responses to environmental stress in eucalyptus cloeziana and eucalyptus argophloia /". St. Lucia, Qld, 2004. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe17409.pdf.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
7

Yang, Zhi. "Vegetative propagation and genetic fingerprinting of Eucalyptus grandis and Eucalyptus amplifolia". [Gainesville, Fla.] : University of Florida, 2009. http://purl.fcla.edu/fcla/etd/UFE0024073.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
8

Morais, Alaine Patrícia da Silva [UNESP]. "Efeito do processo de auto-hidrólise e caracterização química da madeira de Eucalyptus grandis x Eucalyptus urophylla e Eucalyptus grandis". Universidade Estadual Paulista (UNESP), 2015. http://hdl.handle.net/11449/132178.

Pełny tekst źródła
Streszczenie:
Made available in DSpace on 2015-12-10T14:24:24Z (GMT). No. of bitstreams: 0 Previous issue date: 2015-06-01. Added 1 bitstream(s) on 2015-12-10T14:30:36Z : No. of bitstreams: 1 000853232.pdf: 1761523 bytes, checksum: 783bff5a2fd03af1711a3b613cd243b8 (MD5)
A indústria papeleira vem focando em estudos atuais que buscam alternativas para separar a madeira em seus componentes, celulose, hemiceluloses, lignina e extrativos, pois eles que escondem as diversas oportunidades da biorrefinaria integrando processos produtivos de combustíveis e produtos químicos a partir da biomassa. A solubilização das hemiceluloses por auto-hidrólise tem sido proposta como o primeiro passo da biorrefinaria. E os materiais extraídos com a auto-hidrólise (licores auto-hidrolisados) podem ser usados na produção de produtos químicos e biocombustíveis. Assim, este trabalho avaliou o efeito da temperatura e do tempo na auto-hidrólise da serragem do Eucalyptus urograndis e do Eucalyptus grandis para obtenção de possíveis dados cinéticos do comportamento dos componentes químicos (extrativos, lignina, holocelulose, celulose e hemiceluloses) e ainda o rendimento e o índice de cristalinidade, visando estabelecer os pontos de máxima extração das hemiceluloses do material pré-hidrolisado. Os experimentos foram realizados em amostras de serragem de E. urograndis e do E. grandis tidas como controle (não-hidrolisadas) e pré-hidrolisadas. O material foi auto-hidrolisado em minirreatores em diferentes temperaturas (110, 130, 150, 170 e 190 °C) até atingir os diferentes tempos (0, 5, 15, 30, 60, 120 e 150 minutos). Em cada reator foi usada à relação licor:madeira (10:1 L:kg de madeira seca). Os resultados mostraram que as variáveis (temperatura e tempo) influenciam no rendimento; com a diminuição do teor de lignina da serragem auto-hidrolisada ocorreu um aumento do teor de extrativos; apenas uma pequena quantidade de celulose foi removida em comparação às hemiceluloses e uma rápida diferença ocorreu no índice de cristalinidade da celulose, entre os tratamentos. Concluiu-se que com a auto-hidrólise da serragem de E. urograndis e do E. grandis é possível ...
The paper industry has been focusing on current studies that seek alternatives for separating wood into its components, cellulose, hemicellulose, lignin and extractives; they hiding the various biorefinery opportunities by integrating production processes of fuels and chemicals from biomass. The solubilization of hemicelluloses by auto-hydrolysis has been proposed as the first step in biorefinery. And the extracted materials with autohydrolysis (auttohydrolysed liquors) can be used to produce biofuels and chemicals. Thus, this study evaluated the effect of temperature and time in autohydrolysis of Eucalyptus urograndis and Eucalyptus grandis possible to obtain kinetic data on the behavior of chemicals (extractives, lignin, holocellulose, hemicelluloses and cellulose) and also income and crystallinity index, to establish the points of maximum extraction of hemicelluloses prehydrolysed material. The experiments were performed in E. urograndis and E. grandis samples taken as a control (non-hydrolyzed) and prehydrolyzed. The material was autohydrolyzed minirreatores at different temperatures (110, 130, 150, 170 and 190 °C) to achieve different times (0, 5, 15, 30, 60, 120 and 150 minutes). In each minireactor was used to liquor ratio: wood (10: 1 L: kg dry wood). The results showed that the variables (temperature and time), influence on the yield; with decreasing lignin content of the sawdust was autohydrolyzed an increase in the extractives content; only a small amount of cellulose is removed compared hemicelluloses and a quick difference occurred in the cellulose crystallinity index between treatments. It is concluded that with E. urograndis and E. grandis sawdust autohydrolysis can drastically affect treatment without lignin and cellulose.
Style APA, Harvard, Vancouver, ISO itp.
9

Morais, Alaine Patrícia da Silva 1980. "Efeito do processo de auto-hidrólise e caracterização química da madeira de Eucalyptus grandis x Eucalyptus urophylla e Eucalyptus grandis /". Botucatu, 2015. http://hdl.handle.net/11449/132178.

Pełny tekst źródła
Streszczenie:
Orientador: Cláudio Angeli Sansígolo
Banca: Jose Claudio Caraschi
Banca: Elias Taylor Durgante Severo
Banca: Mario de Oliveira Neto
Banca: Adriana Lima Moro
Resumo: A indústria papeleira vem focando em estudos atuais que buscam alternativas para separar a madeira em seus componentes, celulose, hemiceluloses, lignina e extrativos, pois eles que escondem as diversas oportunidades da biorrefinaria integrando processos produtivos de combustíveis e produtos químicos a partir da biomassa. A solubilização das hemiceluloses por auto-hidrólise tem sido proposta como o primeiro passo da biorrefinaria. E os materiais extraídos com a auto-hidrólise (licores auto-hidrolisados) podem ser usados na produção de produtos químicos e biocombustíveis. Assim, este trabalho avaliou o efeito da temperatura e do tempo na auto-hidrólise da serragem do Eucalyptus urograndis e do Eucalyptus grandis para obtenção de possíveis dados cinéticos do comportamento dos componentes químicos (extrativos, lignina, holocelulose, celulose e hemiceluloses) e ainda o rendimento e o índice de cristalinidade, visando estabelecer os pontos de máxima extração das hemiceluloses do material pré-hidrolisado. Os experimentos foram realizados em amostras de serragem de E. urograndis e do E. grandis tidas como controle (não-hidrolisadas) e pré-hidrolisadas. O material foi auto-hidrolisado em minirreatores em diferentes temperaturas (110, 130, 150, 170 e 190 °C) até atingir os diferentes tempos (0, 5, 15, 30, 60, 120 e 150 minutos). Em cada reator foi usada à relação licor:madeira (10:1 L:kg de madeira seca). Os resultados mostraram que as variáveis (temperatura e tempo) influenciam no rendimento; com a diminuição do teor de lignina da serragem auto-hidrolisada ocorreu um aumento do teor de extrativos; apenas uma pequena quantidade de celulose foi removida em comparação às hemiceluloses e uma rápida diferença ocorreu no índice de cristalinidade da celulose, entre os tratamentos. Concluiu-se que com a auto-hidrólise da serragem de E. urograndis e do E. grandis é possível ...
Abstract: The paper industry has been focusing on current studies that seek alternatives for separating wood into its components, cellulose, hemicellulose, lignin and extractives; they hiding the various biorefinery opportunities by integrating production processes of fuels and chemicals from biomass. The solubilization of hemicelluloses by auto-hydrolysis has been proposed as the first step in biorefinery. And the extracted materials with autohydrolysis (auttohydrolysed liquors) can be used to produce biofuels and chemicals. Thus, this study evaluated the effect of temperature and time in autohydrolysis of Eucalyptus urograndis and Eucalyptus grandis possible to obtain kinetic data on the behavior of chemicals (extractives, lignin, holocellulose, hemicelluloses and cellulose) and also income and crystallinity index, to establish the points of maximum extraction of hemicelluloses prehydrolysed material. The experiments were performed in E. urograndis and E. grandis samples taken as a control (non-hydrolyzed) and prehydrolyzed. The material was autohydrolyzed minirreatores at different temperatures (110, 130, 150, 170 and 190 °C) to achieve different times (0, 5, 15, 30, 60, 120 and 150 minutes). In each minireactor was used to liquor ratio: wood (10: 1 L: kg dry wood). The results showed that the variables (temperature and time), influence on the yield; with decreasing lignin content of the sawdust was autohydrolyzed an increase in the extractives content; only a small amount of cellulose is removed compared hemicelluloses and a quick difference occurred in the cellulose crystallinity index between treatments. It is concluded that with E. urograndis and E. grandis sawdust autohydrolysis can drastically affect treatment without lignin and cellulose.
Doutor
Style APA, Harvard, Vancouver, ISO itp.
10

Milla, Moreno Estefanía Alejandra. "Efecto del déficit hídrico en algunas respuestas fisiológicas de Eucalyptus globulus Labill, Eucalyptus camaldulensis Dehnh y Eucalyptus cladocalyx F. Muell". Tesis, Universidad de Chile, 2010. http://repositorio.uchile.cl/handle/2250/151656.

Pełny tekst źródła
Streszczenie:
Memoria para optar al Título Profesional de Ingeniero Forestal
El agua es el principal factor limitante para el desarrollo de especies de cultivo agrícola y especies forestales. En Chile más de tres cuartos de la superficie continental corresponde a zonas áridas y semiáridas. Diversos estudios han demostrado que las especies del género Eucaliptus, poseen un amplio potencial en la tolerancia a condiciones de pluviometría limitada. Por esta razón, se evalúa el efecto de la disponibilidad de agua en algunas respuestas fisiológicas de tres especies de Eucaliptos: Eucalyptus globulus, Eucalyptus camaldulensis y Eucalyptus cladocalyx. El estudio comprende un total de 90 plantas de eucaliptos, 30 de cada especie, las cuales se disponen en un diseño factorial de cinco bloques al azar. Las plantas fueron sometidas a tres niveles de disponibilidad de agua, definidos como: sin estrés, estrés moderado y estrés severo. Las plantas se mantuvieron bajo condiciones semi-controladas en invernadero y las respuestas fueron evaluadas durante dos ciclos de desecamiento, el primero de cinco semanas y el segundo de nueve semanas. Al finalizar cada ciclo, las plantas fueron rehidratadas durante una semana.
Style APA, Harvard, Vancouver, ISO itp.
Więcej źródeł

Książki na temat "Eucalyptus"

1

W, Coppen J. J., red. Eucalyptus: The genus Eucalyptus. London: Taylor & Francis, 2002.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
2

Coppen, John J. W., red. Eucalyptus. Abingdon, UK: Taylor & Francis, 2002. http://dx.doi.org/10.4324/9780203219430.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
3

Fournier, Jean-Luc A. Eucalyptus. Bruxelles]: Le Caillou bleu éditions, 2011.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

Lee, Seng Hua, Wei Chen Lum, Petar Antov, Ľuboš Krišťák, Muhammad Adly Rahandi Lubis i Widya Fatriasari, red. Eucalyptus. Singapore: Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-7919-6.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
5

Sampson, J. F. Eucalyptus rhodantha. Como, W.A: Dept. of Conservation and Land Management, 1989.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
6

ill, Demi, red. Eucalyptus wings. New York, N.Y: Atheneum Books for Young Readers, 1995.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
7

Bail, Murray. Eucalyptus: A novel. London: Harvill Press, 1998.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
8

Bail, Murray. Eucalyptus: A novel. New York: Picador, 2007.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
9

Hanrahan, Barbara. The scent of eucalyptus. London: Chatto & Windus, 1985.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
10

M, Singhal R., Rawat J. K i Indian Council of Forestry Research and Education., red. Effects of growing eucalyptus. Dehra Dun: Indian Council of Forestry Research and Education, 1991.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
Więcej źródeł

Części książek na temat "Eucalyptus"

1

Corredoira, Elena, Ana M. Vieitez i Antonio Ballester. "Eucalypts (Eucalyptus globulus Labill.)". W Step Wise Protocols for Somatic Embryogenesis of Important Woody Plants, 269–82. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89483-6_20.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
2

Hiwale, Shrikant. "Eucalyptus (Eucalyptus sp.)". W Sustainable Horticulture in Semiarid Dry Lands, 301–9. New Delhi: Springer India, 2015. http://dx.doi.org/10.1007/978-81-322-2244-6_23.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
3

Wistara, Nyoman J., Angga W. Nasdi, Susi Sugesty i Teddy Kardyansah. "Bleached and Dissolving Pulp Properties of Eucalyptus Urophylla". W Eucalyptus, 123–36. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-7919-6_9.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

Nuryawan, Arif, Inka Cristy Vera Simorangkir, Eka Mulya Alamsyah i Halimatuddahliana. "Particleboard Made of Eucalyptus Wood Bonded by Isocyanate Resin: Considering Moisture Content of the Particles". W Eucalyptus, 51–71. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-7919-6_4.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
5

Muhammad, Yusri Helmi, Wan Mohd Nazri Wan Abdul Rahman, Nurul Husna Mohd Hassan, Nurrohana Ahmad, Noorshashillawati Azura Mohammad, Siti Noorbaini Sarmin i Petar Antov. "Veneers from Eucalyptus spp." W Eucalyptus, 89–98. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-7919-6_6.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
6

Ismayati, Maya, Nissa Nurfajrin Sholihat i Fahriya Puspita Sari. "Eucalyptus Bark Tannin for Green Chemistry Agent". W Eucalyptus, 137–61. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-7919-6_10.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
7

Awang Othman, Ahmad Fauzi, Junaiza Ahmad Zaki, Norhafizah Rosman, Amran Shafie, Nur Hannani Abdul Latif, Zaimatul Aqmar Abdullah i Ľuboš Krišťák. "Veneer-Based Products from Eucalyptus spp." W Eucalyptus, 99–109. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-7919-6_7.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
8

Ong, Chee Beng, Alia Syahirah Yusoh i Mohd Khairun Anwar Uyup. "Glue-Laminated Timber from Eucalyptus spp." W Eucalyptus, 111–22. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-7919-6_8.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
9

Espey, Manuel, Paridah Md Tahir, Seng Hua Lee, Adlin Sabrina Muhammad Roseley i Roger Meder. "Splitting Issues in Eucalyptus Logs". W Eucalyptus, 35–49. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-7919-6_3.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
10

Dahali, Rasdianah, Paridah Md Tahir, Seng Hua Lee i Zhang Jun. "Diseases Infection in Eucalyptus Plantation". W Eucalyptus, 17–34. Singapore: Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-7919-6_2.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.

Streszczenia konferencji na temat "Eucalyptus"

1

Kaya, Durmuş Alpaslan, i Musa Türkmen. "Comparing of Eucalyptus (Eucalyptus camaldulensis and Eucalyptus grandis) Essential Oil Compositions Growing in Hatay Ecological Conditions". W The 9th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2022. http://dx.doi.org/10.24264/icams-2022.ii.14.

Pełny tekst źródła
Streszczenie:
Essential oils obtained by hydrodistillation of Eucalyptus camaldulensis and Eucalyptus grandis from Hatay (Turkey), were analyzed by GC/MS. The total ratio of twenty-three components in Eucalyptus camaldulensis volatile components with 98.15%. This ratio is seen as forty-seven components and 99.66% in Eucalyptus grandis. Eucalyptol, limonene and α-pinene were identified as the main components of the essential oils of Eucalyptus camaldulensis. Cymene, α-pinene, isoborneol, trans-pinocarveol and eucalyptol were identified as the main components of the essential oils of Eucalyptus grandis. When compare the components of E. camaldulensis and E. grandis essential oils, the main component was determined as eucalyptol with 74.11% and cymene with 31.67% respectively.
Style APA, Harvard, Vancouver, ISO itp.
2

Liu, Sandy, Yong Liang i Martin Brooks. "Eucalyptus". W the 2007 conference of the center for advanced studies. New York, New York, USA: ACM Press, 2007. http://dx.doi.org/10.1145/1321211.1321213.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
3

Nurhazanah, Fatmawati, Husni Husin, Ahmadi i Fahrizal Nasution. "Microwaves-assisted extraction of bioactive eucalyptus leaves (eucalyptus globulus)". W THE 12TH ANNUAL INTERNATIONAL CONFERENCE (AIC) 2022: The 12th Annual International Conference on Sciences and Engineering (AIC-SE) 2022. AIP Publishing, 2024. http://dx.doi.org/10.1063/5.0201539.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

Diao, Jun, Xiangdong Lei, Lingxia Hong, Jiantao Rong i Qiang Shi. "Estimating Single Leaf Area of Eucalyptus (Eucalyptus grandis x Eucalyptus urophylla) Using Leaf Length and Width". W 2009 Third International Symposium on Plant Growth Modeling, Simulation, Visualization and Applications (PMA). IEEE, 2009. http://dx.doi.org/10.1109/pma.2009.66.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
5

de Oliveira, Antonio C., Beatriz Barbuy, Rodrigo P. Campos, Bruno V. Castilho, Clemens Gneiding, Antonio Kanaan, David Lee i in. "The Eucalyptus spectrograph". W Astronomical Telescopes and Instrumentation, redaktorzy Masanori Iye i Alan F. M. Moorwood. SPIE, 2003. http://dx.doi.org/10.1117/12.461975.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
6

"Characterization of the microstructure of bark of eucalyptus “eucalyptus camaldulensis”". W 1st International Symposium on Dielectric Materials and Applications. Materials Research Forum LLC, 2016. http://dx.doi.org/10.21741/9781945291197-74.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
7

Rodrigues, Welington Galvao, Christian D. Cabacinha, Rogerio Salvini, Gabriel Vieira, Deborah S. A. Fernandes i Fabrizzio Soares. "Eucalyptus Volume Estimation for Eucalyptus Clones Trees Using Artificial Neural Networks". W 2020 IEEE Canadian Conference on Electrical and Computer Engineering (CCECE). IEEE, 2020. http://dx.doi.org/10.1109/ccece47787.2020.9255715.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
8

Mariano Alves, Gabriela, i Nádia Figueiredo De Paula. "FORMAÇÃO DE CERNE EM CLONES DE Eucalyptus grandis x Eucalyptus urophylla". W XI SIMPÓSIO DE TECNOLOGIA FATEC JABOTICABAL. FATEC JABOTICABAL, 2020. http://dx.doi.org/10.52138/sitec.v11i1.142.

Pełny tekst źródła
Streszczenie:
A qualidade dos produtos derivados da madeira está estreitamente relacionada à qualidade da madeira que é usada para a sua produção. Essas características, ao serem avaliadas, são parâmetros indicativos que auxiliam na utilização correta da madeira para determinada finalidade. Normalmente há grandes variações na madeira entre e dentro de espécies, ao longo do tronco, madeira de início e fim de estação de crescimento e entre o cerne e o alburno. Tais variações podem ocorrer em função da idade, fatores genéticos e ou ambientais. O objetivo do trabalho foi avaliar o processo de formação de cerne em cinco clones de Eucalipto, ao longo do tempo. Foram avaliadas a relação cerne/alburno e a proporção de cerne na madeira de cinco genótipos de Eucalyptus grandis x Eucalyptus urophylla aos 27, 48, 60, 72 e 84 meses de idade. Aos 27 meses foi observada uma porcentagem média de 21% de cerne e relação cerne/alburno média de 0,28 o que indica que a cernificação inicia-se cedo nesses clones. Entre 27 e 48 meses houve uma intensa formação de cerne. Ao final do ciclo de crescimento (84 meses), o clone 1 apresentou a maior área de cerne e o clone 4 a menor. Essas informações podem auxiliar na definição da idade de corte e na forma de utilização da madeira de cada clone.
Style APA, Harvard, Vancouver, ISO itp.
9

Zafarullah, Faiza Anwar i Zahid Anwar. "Digital Forensics for Eucalyptus". W 2011 Frontiers of Information Technology (FIT). IEEE, 2011. http://dx.doi.org/10.1109/fit.2011.28.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
10

MARTIN, BERNARD. "EUCALYPTUS:: A STRATEGIC FOREST TREE". W Proceedings of the International Symposium. WORLD SCIENTIFIC, 2003. http://dx.doi.org/10.1142/9789812704504_0001.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.

Raporty organizacyjne na temat "Eucalyptus"

1

Pulgarin Díaz, John Alexander, Jhon Alveiro Quiroz Gamboa i Carlos Espinel Correal. Predators of Gonipterus platensis (Marelli, 1926) (Coleoptera: Curculionidae) larvae in Antioquia, Colombia. Corporación colombiana de investigación agropecuaria - AGROSAVIA, 2019. http://dx.doi.org/10.21930/agrosavia.poster.2019.8.

Pełny tekst źródła
Streszczenie:
The eucalyptus snout beetle, Gonipterus spp. are a pest of eucalyptus worldwide (Figure 1). Gonipterus platensis was rst reported in Colombia in 2016, threatening and causing economic losses in more than 60.000 ha of Eucalyptus spp. planted in the country. Classical biological control of these species has been e ective in some countries with Anaphes nitens (Girault) and A. inexpectatus Huber & Prinsloo, 1990 (Hymenoptera: Mymaridae), and complemented with di erent natural enemies (NE) (Nascimento et al. 2017).
Style APA, Harvard, Vancouver, ISO itp.
2

Skolmen, Roger G. Performance of Australian provenances of Eucalyptus grandis and Eucalyptus saligna in Hawaii. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1986. http://dx.doi.org/10.2737/psw-rp-181.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
3

GAFNER, STEFAN, i Ashley Dowell. Tea Tree Oil Laboratory Guidance Document. ABC-AHP-NCNPR Botanical Adulterants Prevention Program, październik 2018. http://dx.doi.org/10.59520/bapp.lgd/ldfd8529.

Pełny tekst źródła
Streszczenie:
Tea tree oil (TTO) is the essential oil of tea tree (Melaleuca alternifolia or M. linariifolia, Myrtaceae). Adulteration of TTO has become more apparent in recent years. Adulteration occurs with single essential oil components (e.g., sabinene from pine oil), waste products derived from other essential oils such as pine (Pinus spp., Pinaceae), eucalyptus (Eucalyptus globulus and other Eucalyptus spp., Myrtaceae), and camphor (Cinnamomum camphora, Lauraceae) oils, or with essential oils from other Melaleuca species and the closely related genus Leptospermum. This Laboratory Guidance Document presents a review of the various analytical technologies used to differentiate between authentic tea tree oil and essential oils containing adulterating materials. This document can be used in conjunction with the Tea Tree Oil Botanical Adulterants Bulletin published by the ABC-AHP-NCNPR Botanical Adulterants Prevention Program in 2017.
Style APA, Harvard, Vancouver, ISO itp.
4

Pulgarin Díaz, John Alexander, Juliana Pérez Pérez i Carlos Espinel Correal. In search for Gonipterus platensis (Marelli, 1926) (Coleoptera: Curculionidae) egg parasitoids in Antioquia, Colombia. Corporación colombiana de investigación agropecuaria - AGROSAVIA, 2019. http://dx.doi.org/10.21930/agrosavia.poster.2019.26.

Pełny tekst źródła
Streszczenie:
The eucalyptus snout beetle, Gonipterus spp. are a pest of Eucalyptus stands in the world causing serious economic loses. Gonipterus platensis (Figure 1) was ¬rst reported in Antioquia (Colombia) in 2016, by the Instituto Colombiano Agropecuario –ICA (ICA, 2016), threatening more than 60.000 ha planted with eucalyptus around the country. Classical biological control of these species has worked in some countries using the egg parasitoids Anaphes nitens (Girault) and Anaphes inexpectatus Huber & Prinsloo, 1990 (Hymenoptera: Mymaridae) and complemented with di erent natural enemies (NE) in some countries (Nascimento et al. 2017). A. nitens had been reported with high e cency ¬nding G. scutellatus egg masses reaching a parasitism rate of 80–100% of eggs in North west Spain (Rivera et al. 1999). It is necessary to know Gonipterus platensis NE, including the presence of A. nitens and A. inexpectatus, in local conditions so integrated pest management programs could be designed. This is the ¬rst survey of the NE for G. platensis in Colombia.
Style APA, Harvard, Vancouver, ISO itp.
5

Heth, Dan M., Tom Geary i Oded Reuveni. Vegetative Propagation of Selected Clones of Eucalyptus Camaldulensis dehn. United States Department of Agriculture, maj 1985. http://dx.doi.org/10.32747/1985.7587721.bard.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
6

Whitesell, Craig D., Dean S. DeBell, Thomas H. Schubert, Robert F. Strand i Thomas B. Crabb. Short-rotation management of Eucalyptus: guidelines for plantations in Hawaii. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station, 1992. http://dx.doi.org/10.2737/psw-gtr-137.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
7

DeBell, Dean S., Craig D. Whitesell i Thomas H. Schubert. Mixed plantations of Eucalyptus and leguminous trees enhance biomass production. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1985. http://dx.doi.org/10.2737/psw-rp-175.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
8

DeBell, Dean S., Craig D. Whitesell i Thomas B. Crabb. Benefits of Eucalyptus-Albizia mixtures vary by site on Hawaii Island. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1987. http://dx.doi.org/10.2737/psw-rp-187.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
9

DeBell, Dean S., i Craig D. Whitesell. Diameter-density relationships provide tentative spacing guidelines for Eucalyptus saligna in Hawaii. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1988. http://dx.doi.org/10.2737/psw-rn-397.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
10

Whitesell, Craig D., Susan C. Miyasaka, Robert F. Strand, Thomas H. Schubert i Katharine E. McDuffie. Equations for predicting biomass in 2- to 6-year-old Eucalyptus saligna in Hawaii. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1988. http://dx.doi.org/10.2737/psw-rn-402.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
Możesz być także zainteresowany rozszerzonymi bibliografiami na temat „Eucalyptus” dla poszczególnych typów źródeł:
Artykuły w czasopismach Rozprawy doktorskie Książki
Oferujemy zniżki na wszystkie plany premium dla autorów, których prace zostały uwzględnione w tematycznych zestawieniach literatury. Skontaktuj się z nami, aby uzyskać unikalny kod promocyjny!

Do bibliografii