The anatomies of 44 galls are discussed with special attention given to the development, longevity, and tannin content of the nutritive tissues. Within the main section of the thesis, representative galls from the major cecidogenetic groups, with the exception of bacterial and Australian scale
galls, are studied. These include galls...
To assess the effect of summer moisture stress on the capacity of tansy ragwort (Senecio jacobaea L.) to compensate for defoliation by the cinnabar moth (Tyria jacobaeae LT7), the performance of plants grown under different irrigation regimes was measured. The proportion of plants producing
new leaves following defoliation, the number...
HARNEY COUNTY HISTORY PROJECT
AV-Oral History #136 - Side B & #137 - Side A
Subject: Violet Brown
Place: Burns, Oregon
Date: March 11, 1972
Interviewer: James Baker
Full Text:
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HARNEY COUNTY HISTORY PROJECT
AV-Oral History #136 - Side B & #137 - Side
Heterogeneous porous material represents a persistent challenge in the field of engineering. Microscale properties such as the porosity and microchannel torturosity significantly control the macroscale transport characteristics of homogeneous porous medium. Additional complexity is introduced when these small-scale features vary in space. Examples of heterogeneous porous systems include artificial body...
Agronomic and microbiological studies were conducted on "Anchor" alfalfa (Medicago sativa L.) established from uninoculated seed on three Aridisols in central Oregon. Significant responses to 230 Kg N per ha (NH₄NO₃), which was applied in mid-April and after each first and second harvests, were observed in yield parameters of the...
Ecological restoration is needed to mitigate losses to biodiversity. Restoration success is enhanced through the use of native plant materials that are genetically diverse and locally adapted. Seed transfer zones have been developed to delineate geographic areas where native seed can be collected and distributed with reduced risk of maladaptation....
The City of Salem, Oregon has an active sewer main chemical grouting
program for the control of groundwater infiltration into the sewer collection
system. The effectiveness of this chemical grouting program is evaluated
by a comparison to other effective chemical grouting programs for control
of inflow/infiltration (I/I). The importance of...
Juvenile coho salmon (Oncorhynchus kisutch) were orally
immunized against the bacterium Flexibacter columnaris (formerly
Chondrococcus columnaris), the causative agent of columnaris disease
in fish, with a vaccine-food preparation containing formalin-killed
cells. Fish immunized for 1, 2, 3, and 4 months were challenged
with selected concentrations of F. columnaris by exposure...