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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Tree vigor and the susceptibility of Douglas-fir to armillaria root disease /

Rosso, Pablo H. January 1994 (has links)
Thesis (M.S.)--Oregon State University, 1995. / Typescript (photocopy). Includes bibliographical references (leaves 66-74). Also available online.
2

Assessment of climate change and impacts of Armillaria root disease (Armillaria spp.) In Alberta’s boreal forest

Lowther, Lisa D. 13 May 2011 (has links)
There are many health issues surrounding Alberta’s forests today and for the future. Health impacts of diseases, pests and climate change are currently being predicted in order to implement new management ideas and solutions, and identify specific research needs. This study examines state of the art knowledge on the current impacts of Armillaria root disease (ARD) (Armillaria spp.) in Alberta’s boreal forest region. It also assesses the biology and structure of the disease within this region to predict the extent to which the boreal forest may be impacted. In the next 50 years, both Armillaria ostoyae (Romag.) Herink and Armillaria sinapina Bérubé & Dessureault will become more of a problem, due to climate change and the current mature state of Alberta’s forests. A. sinapina, as a less-pathogenic but more opportunistic species, is predicted to be more prevalent that A. ostoyae, since the former will flourish when there are environmental stresses. Management practices will require research and evaluation of the use of alternative native tree species that have a higher resistance to the Armillaria species within Alberta and the impacts of such alternatives to the forestry industry and community structure. Future research is also essential to determine if one promising biological control agent and fungus, Hypholoma fasciculare (Huds. ex. Fr.), will be a viable and cost effective method to control Armillaria species within Alberta.
3

Genetic mapping of Armillaria ostoyae using RAPD markers

Dudley, Roy, 1972- January 1998 (has links)
We report here the use of RAPD-PCR (Random Amplified Polymorphic DNA - Polymerase Chain Reaction) to identify segregating loci in the haploid progeny of an Armillaria ostoyae basidiocarp and the construction of the first genetic linkage map of this fungus, one of the causal species of Armillaria Root Disease. Upon screening 75 RAPD primers, 18 were found to identify a total of 43 loci segregating with a 1 : 1 Mendelian ratio. These loci were analysed for linkage among 58 monospore progeny. The map constructed with Mapmaker (LOD = 3.0, r = 0.38) was confirmed by GMendel (LOD = 1.5, r = 0.38). This map arranged 30 loci into 6 linkage groups and 4 linkage pairs. Thirteen markers remained unlinked. Using the Kosambi mapping function the linked loci accounted for approximately 450 cM and the genome was estimated to be 1600 cM. This preliminary map covers approximately 28% of the A. ostoyae genome.
4

Molecular evolution, identification and epidemiology of North American species of a root-infecting fungus, Armillaria /

Piercey-Normore, Michele D., January 1997 (has links)
Thesis (Ph. D.)--Memorial University of Newfoundland, 1997. / Restricted until November 1998. Bibliography: leaves 189-206.
5

Genetic mapping of Armillaria ostoyae using RAPD markers

Dudley, Roy, 1972- January 1998 (has links)
No description available.
6

Impact of Armillaria and annosus root diseases on stand and canopy structure, species diversity, and down woody material in a central Oregon mixed-conifer forest /

Fields, Kristen L. N. January 1900 (has links)
Thesis (M.S.)--Oregon State University, 2004. / Printout. Includes bibliographical references (leaves 148-159). Also available online.
7

Causes of forest decline and consequences for oak-pine stand dynamics in southeastern Missouri /

Voelker, Steven L. January 2004 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaves 204-228). Also available on the Internet.
8

Causes of forest decline and consequences for oak-pine stand dynamics in southeastern Missouri

Voelker, Steven L. January 2004 (has links)
Thesis (M.S.)--University of Missouri-Columbia, 2004. / Typescript. Includes bibliographical references (leaves 204-228). Also available on the Internet.
9

Molecular phylogenetic studies on Armillaria with specific reference to Southern Hemisphere species

Coetzee, Martin Petrus Albertus 09 May 2005 (has links)
Please read the Summary in the section 00front of this document / Thesis (PhD)--University of Pretoria, 2005. / Genetics / Unrestricted

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