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Creator:: Hillier, Kaitlin G. and Rothwell, Gar W.
Abstract:: Reexamination of fossilized plant material from the westernmost Pennsylvanian-age wetland flora in North America reveals that material of Pecopteris oregonensis Arnold represents a filicalean fern frond with annulate sporangia and anatomically preserved vascular tissues of the rachis. The frond, which is redescribed as Senftenbergia oregonensis (Arnold) Hillier et Rothwell comb....
Resource Type:: Article
Full Text:: . NOV. (FILICALES): DELIMITING RELATIONSHIPS AMONG PALEOZOIC TEDELEACEAE Kaitlin G. Hillier* and Gar W

Creator:: Falconi, Cesar E.
Abstract:: Eight phylloplane yeasts were isolated from backyard apple trees in Corvallis, OR. Yeast isolates were classified to genus or species level. All isolates were tested in vitro for antagonistic activity against the postharvest pathogens Botrytis cinerea and Penicillium expansum. Of these isolates, Aureobasidium pullulans, Sporobolomyces roseus Rhodotorula sp., consistently reduced...
Resource Type:: Masters Thesis
Full Text:: gray and blue mold fruit rots of apple AN ABSTRACT OF THE THESIS OF Cesar E. Falcon for the degree

Creator:: Bekedam, Steven
Abstract:: Scientists and land managers realize that integrated weed management (IWM) strategies are needed to attain successful and lasting improvements of weed infested landscapes. At this time no broadly reliable and environmentally safe IWM strategy has been developed to control exotic annual grasses that dominate many ecosystems of the northern Great...
Resource Type:: Masters Thesis
Full Text:: (Elymus wawawaiensis J. Camison & Barkworth), showed positive responses to imazapic applications. For E

Creator:: Pfingsten, Ian A.
Abstract:: Increased temperatures due to anthropogenic-induced climate change may raise the threat of extinction for taxa with sessile life histories (e.g., plants) in the near future. Linking climate change models to demographic models may provide useful insights into the potential effects of environmental changes on rare plants, and therefore aid in...
Resource Type:: Masters Thesis
Full Text:: , Wendy, Phillips, Kelly Farrell, Michelle Waldron, Kaitlin Bonner, Adam Chouinard, and Sus Theis. Last

Creator:: Daniels, Hazel A.
Abstract:: Sudden oak death is caused by the clonally reproducing generalist oomycete Phytophthora ramorum. The pathogen can infect more than 130 different plant hosts including Quercus spp., Larix kaempferi, and Notholithocarpus densiflorus, as well as common nursery genera such as Rhododendron and Camelia, where it causes symptoms ranging from bleeding cankers...
Resource Type:: Dissertation
Full Text:: , Ted Cooper, Kali Doten, Nick Fisher, Valerie Frasier, Ricardo Friaz, Sean Gilligan, Andrea Haverkamp

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