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Epiphytic yeasts isolated from apple leaves to control of gray and blue mold fruit rots of apple

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:: abc 43 (Cryptococcus sp.) 5.1 c 1.8 de 6.0 a 3.2 ab 52 (S roseus) 6.5 abc 4.1 b 6.2 a 3.3 ab 56

Post-dispersal seed fates in a Western Oregon native prairie

Creator:: Clark, Deborah L.
Abstract:: Knowledge of post-dispersal seed fates and other regeneration characteristics is crucial for predicting abundances and distributions of populations and, ultimately, community species composition and diversity. Seed fate studies, however, are rare primarily due to the difficulty of determining seed fates and causes of mortality. This thesis investigated post-dispersal seed fates...
Resource Type:: Dissertation
Full Text:: , Mark V. Wilson, Kenneth B. Johnson, Patricia S. Muir, Donald B. Zobel, and Jeffrey C. Miller, for

West Eugene Native Wetland Restoration Research Project: Seed Dormancy, Germination, and Establishment

Creator:: Wilson, Mark V., Ingersoll, Cheryl A., and Clark, Deborah Louise, 1950-
Abstract:: Seed size, abundance, viability, dormancy, and germination requirements strongly influence plant establishment and therefore are important considerations in restoration of native vegetation. These characteristics provide criteria for selection of suitable species, development of collection and pretreatment methods, and determination of seeding densities. The first set of objectives of this study...
Resource Type:: Technical Report
Full Text:: ie s F il le d V ia b le F ro m ra n d o m s e e d lo ts F ro m fi ll ed s e e d lo

Recommendations for Control of Tall Oatgrass, Poison Oak, and Rose in Willamette Valley Upland Prairies

Creator:: Wilson, Mark V. and Clark, Deborah Louise, 1950-
Abstract:: Native upland prairies, which once dominated the landscape of the Willamette Valley, are considered among the rarest of Oregon's ecosystems. Even though only remnants remain today, they harbor many rare and endangered species such as the Fender's blue butterfly and its host plant, Kincaid’s lupine. Invasion of remnant prairies by...
Resource Type:: Technical Report
Full Text:: Program Portland, Oregon and U. S. Fish and Wildlife Service Western Oregon Refuge Complex December 14

Final report 1994-1996 : Effects of fire and fire fighting techniques on Fender's blue butterfly and Kincaid's lupine

Creator:: Clark, Deborah Louise, 1950- and Wilson, Mark V.
Abstract:: We report results from a field experiment evaluating the effectiveness of mowing, mowing and herbicides, and burning on woody plants, key native and non-native grasses and forbs, and the Fender's blue butterfly. The goal was to find a technique that controlled woody pest plants without harming native species or promoting...
Resource Type:: Technical Report
Full Text:: . Wilson Submitted to Western Oregon Refuges U. S. Fish and Wildlife Service Order No. 10181-4-1843(PM

Distribution and Frequency of Benomyl, Vinclozolin, and Benomyl/Vinclozolin Strains of Botrytis cinerea in Oregon Vineyards

Creator:: Johnson, Kenneth B.
Abstract:: Gray mold of grape, caused by Botrytis cinerea, can be a serious problem in Oregon vineyards. Disease control has been achieved primarily through the application of foliar fungicides. For a time, the fungicide benomyl provided outstanding control of this disease; however, by the late-1970's, strains of B. cinerea resistant to...
Resource Type:: Technical Report
Full Text:: provided outstanding control of this disease; however, by the late-1970's, strains of B. cinerea resistant

Genetic variability in the eastern filbert blight pathosystem

Creator:: Osterbauer, Nancy K.
Abstract:: The heritability of resistance to eastern filbert blight, caused by Anisogramma anomala, in European hazelnut (Corylus avellana) was evaluated in the progeny of seven cultivars crossed in 12 combinations. Progeny produced by crossing 'VR6-28' with three susceptible cultivars segregated 1:1 for complete resistance to eastern filbert blight. Histograms of disease...
Resource Type:: Dissertation
Full Text:: ., Sunderland, MA. 15. Johnson, K. B., Mehlenbacher, S. A., Stone, J. K., and Pscheidt, J. W. 1996

Modification of phyllosphere environments to enhance establishment of Gliocladium roseum, an antagonist of Botrytis cinerea

Creator:: Bennett, Robert J. (Robert Joe), 1953-
Abstract:: Radial colony growth of three isolates of Gliocladium roseum and three isolates of Bottytis cinerea were measured on 1/4 strength potato dextrose agar amended with concentrations of NaHCO₃ ranging from 0-2% (w/v). Compared to the control, reductions in colony diameter of the B. cinerea isolates ranged from 60-79% and 73-89%...
Resource Type:: Masters Thesis
Full Text:: diameter of the B. cinerea isolates ranged from 60-79% and 73-89% on media amended with 0.125 and 0.25

Effect of resident epiphytic fungi development of brown rot blossom blight of stone fruits

Creator:: Wittig, Hans P. P.
Abstract:: Antagonistic effects of Epicoccum purpurascens, Aureobasidium pullulans, Trichoderma spp., and Botrytis cinerea on establishment of Monilinia fructicola infections in cherry and peach blossoms were assessed in field and mist chamber studies. Conidia of each fungus were applied to blossoms that were subsequently inoculated with conidia of M fructicola. Mist chamber...
Resource Type:: Masters Thesis
Full Text:: Epiphytic Fungi on Development of Brown Rot Blossom Blight of Stone Fits. Redacted for Privacy Kenneth B

Ecology of Corydalis aquae-gelidae, a rare riparian plant

Creator:: Goldenberg, Douglas M.
Abstract:: Corydalis aquae-gelidae is a large herbaceous perennial in the Fumariaceae that has high habitat specificity. It is endemic to the western Cascade Range of Oregon and Washington, almost entirely on the Mt. Hood and Gifford Pinchot National Forests. It is a federal C2 candidate under the Endangered Species Act and...
Resource Type:: Masters Thesis
Full Text:: Riparian Plant. Abstract approved: Donald B obel Corydalis aquae-gelidae is a large herbaceous perennial

ScholarsArchive@OSU

Epiphytic yeasts isolated from apple leaves to control of gray and blue mold fruit rots of apple

Post-dispersal seed fates in a Western Oregon native prairie

West Eugene Native Wetland Restoration Research Project: Seed Dormancy, Germination, and Establishment

Recommendations for Control of Tall Oatgrass, Poison Oak, and Rose in Willamette Valley Upland Prairies

Final report 1994-1996 : Effects of fire and fire fighting techniques on Fender's blue butterfly and Kincaid's lupine

Distribution and Frequency of Benomyl, Vinclozolin, and Benomyl/Vinclozolin Strains of Botrytis cinerea in Oregon Vineyards

Genetic variability in the eastern filbert blight pathosystem

Modification of phyllosphere environments to enhance establishment of Gliocladium roseum, an antagonist of Botrytis cinerea

Effect of resident epiphytic fungi development of brown rot blossom blight of stone fruits

Ecology of Corydalis aquae-gelidae, a rare riparian plant

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