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| Registros recuperados: 221 | |
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| SOUSA, V. A. de; AGUIAR, A. V. de; PINTO JUNIOR, J. E.. |
| A eucaliptocultura brasileira avançou muito nos últimos trinta anos, devido ao trabalho intensivo de genética e silvicultura e, principalmente, ao domínio das técnicas de hibridação e clonagem. O desenvolvimento de híbridos surgiu como alternativa ao aumento do potencial produtivo e redução da suscetibilidade às doenças. Cruzamentos entre clones elite vêm sendo conduzidos em diferentes programas de melhoramento no setor florestal brasileiro. Embora a técnica de produção de híbridos tenha sido bem estabelecida, deve-se considerar sempre o resultado dos programas de melhoramento para o aumento contínuo da produtividade e qualidade da madeira. A produção de híbridos, em geral, é possível graças à polinização controlada, que permite agregar indivíduos com... |
| Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: Embrapa Florestas; Eucalipto; Pesquisa Florestal; Melhoramento Genético Vegetal; Historia; Pólen; Armazenamento; Secagem; Polinização; Eucalyptus; Corymbia. |
| Ano: 2021 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1131873 |
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| MORAES, G. J. de; PIRES, I. E.; SOUZA, S. M. de; RIBASKI, J.; OLIVEIRA, C. A. V.. |
| Estudou-se o comportamento de espécies de eucalipto ao ataque de Stiphra robusta Mello-Leitão, em três áreas experimentais em Petrolina - Pernambuco. Eucalyptus camaldulensis Dehnh., Eucalyptus crebra F. Muell, Eucalyptus nesophila Blakely e Eucalyptus polycarpa F. Muell, foram as espécies menos danificadas pelo inseto. A susceptibilidade de Eucalyptus alba Reinw ex Blume, variou grandemente entre procedências. |
| Tipo: Capítulo em livro técnico (INFOTECA-E) |
Palavras-chave: Resistência de planta; Proscopiidae; Stiphra; Forest; Floresta; Eucalipto; Inseto; Eucalyptus. |
| Ano: 1981 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/156987 |
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| Cheewangkoon, R.; Groenewald, J.Z.; Summerell, B.A.; Hyde, K.D.; To-anun, C.; Crous, P.W.. |
| Twenty-six species of microfungi are treated, the majority of which are associated with leaf spots of Corymbia, Eucalyptus and Syzygium spp. (Myrtaceae). The treated species include three new genera, Bagadiella, Foliocryphia and Pseudoramichloridium, 20 new species and one new combination. Novelties on Eucalyptus include: Antennariella placitae, Bagadiella lunata, Cladoriella rubrigena, C. paleospora, Cyphellophora eucalypti, Elsinoë eucalypticola, Foliocryphia eucalypti, Leptoxyphium madagascariense, Neofabraea eucalypti, Polyscytalum algarvense, Quambalaria simpsonii, Selenophoma australiensis, Sphaceloma tectificae, Strelitziana australiensis and Zeloasperisporium eucalyptorum. Stylaspergillus synanamorphs are reported for two species of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Corymbia; Eucalyptus; Microfungi; Syzygium; Taxonomy. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/532182 |
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| Barber, P.A.; Crous, P.W.; Groenewald, J.Z.; Pascoe, I.G.; Keane, P.. |
| The genus Vermisporium presently accommodates 13 species, 11 of which are associated with leaf spots of eucalypts in the Southern Hemisphere. Vermisporium is chiefly distinguished from Seimatosporium (Amphisphaeriaceae) on the basis of a short exogenous basal appendage, and the absence of a recognisable apical appendage. Due to the increasing importance of these species in native forests, and confusion pertaining to their taxonomy, a revision of the genus was undertaken based on fresh collections and dried herbarium specimens. Results from DNA sequence data analyses of the nrDNA-ITS and 28S nrRNA genes for species of Vermisporium indicated the genus to be a synonym of Seimatosporium. New combinations are introduced in Seimatosporium for several species: S.... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Australia; Eucalyptus; Foliar pathogen; Seimatosporium; Taxonomy. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/531863 |
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| Quaedvlieg, W.; Binder, M.; Groenewald, J.Z.; Summerell, B.A.; Carnegie, A.J.; Burgess, T.I.; Crous, P.W.. |
| The Teratosphaeriaceae represents a recently established family that includes numerous saprobic, extremophilic, human opportunistic, and plant pathogenic fungi. Partial DNA sequence data of the 28S rRNA and RPB2 genes strongly support a separation of the Mycosphaerellaceae from the Teratosphaeriaceae, and also provide support for the Extremaceae and Neodevriesiaceae, two novel families including many extremophilic fungi that occur on a diversity of substrates. In addition, a multi-locus DNA sequence dataset was generated (ITS, LSU, Btub, Act, RPB2, EF-1α and Cal) to distinguish taxa in Mycosphaerella and Teratosphaeria associated with leaf disease of Eucalyptus, leading to the introduction of 23 novel genera, five species and 48 new combinations. Species... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Eucalyptus; Multi-locus; Phylogeny; Species concepts; Taxonomy. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/532346 |
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| Crous, P.W.; Wingfield, M.J.; Groenewald, J.Z.. |
| Eucalyptus spp. are susceptible to a large number of foliar pathogens, some of which can cause serious defoliation and die-back. In this study, a single leaf spot on a Eucalyptus leaf collected in Madagascar revealed an unusual association of microfungi with disease symptoms. Initial observations indicated that the leaf spot was associated with Mycosphaerella marksii, a common pathogen of eucalypts. However, more intensive scrutiny showed the presence of several other microfungi co-occurring in this, and other leaf spots on the leaf. A total of 41 single conidial propagules were subsequently obtained from a single lesion for morphological study and DNA sequence comparisons. Based on these data, 11 members of the Capnodiales, including one species of... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Eucalyptus; ITS; Mycosphaerella; Systematics; Teratosphaeria. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/531761 |
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| Hoare, R.J.B.; Nieukerken, E.J. van. |
| The phylogeny of the mainly Australian nepticulid genus Pectinivalva Scoble, 1983 is investigated on the basis of morphology, and a division into three monophyletic subgenera is proposed on the basis of these results. These subgenera (Pectinivalva, Casanovula Hoare, subgen. n. and Menurella Hoare, subgen. n. ) are described and diagnosed, the described species of Pectinivalva are assigned to them, and representative new species are described in each: P. (P.) mystaconota Hoare, sp. n., P. (C.) brevipalpa Hoare, sp. n., P. (C.) minotaurus Hoare, sp. n., P. (M.) scotodes Hoare, sp. n., P. (M.) acmenae Hoare, sp. n., P. (M.) xena- delpha Van Nieukerken & Hoare, sp. n., P. (M.) quintiniae Hoare & Van Nieukerken, sp. n., and P. (M.) tribulatrix Van... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Pectinivalva; Myrtaceae; Eucalyptus; Paracryphiaceae; Rain forest; Borneo; Indonesia; Australia; Keys; Host- plants; DNA barcodes. |
| Ano: 2013 |
URL: http://www.repository.naturalis.nl/record/644598 |
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| Registros recuperados: 221 | |
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