The hypothesis that inoculation of transplants with vesicular-arbuscular mycorrhizal (VAM) fungi before planting into saline soils would alleviate salt effects on growth and productivity was tested on lettuce (Lactuca sativa L.) and onion (Allium cepa L.). A secondary hypothesis was that the fungi isolated from a saline soil would be...
Italian ryegrass (Lolium perenne spp. multiflorum) is a common weed management problem in turfgrasses, cereals and non-crop areas in the United States. In Oregon, the number of populations with multiple-resistance continues to increase. To manage these resistant populations, the resistance patterns must be determined. In this study, five Italian ryegrass...
Coastal Oregon is deficient in quality construction aggregate.
There is, however, an abundance of lower quality, or marginal aggregate
available for construction purposes. The purpose of this report
is to develop techniques for upgrading marginal aggregates with portland
cement and methods for evaluating the relative performance of
these stabilized materials...
Ship tracks have proven to be an ideal laboratory for studying the response of marine
stratocumulus to an increase in aerosol pollution. Here the response of already
polluted marine stratocumulus to further pollution was examined by studying the
clouds where two ship tracks cross. 78 crossings of ship tracks were...
The work described herein details the synthesis and application of
biphenyls that probe the effects of hydrogen, Cl / Br, and methyl substituents
on the aryl ring of the terminal acetylenic carbon. From this work, we
successfully developed the rapid synthesis of phenyl acetylenes in 3-4 steps
from inexpensive commercially...
Recent works have investigated use of the hydrogen isotopic composition of C₃₇ alkenones (δD[subscript K37s]), lipid biomarkers of certain haptophyte microalgae, as an independent paleosalinity proxy. I discuss herein the factors impeding such an application and identify the potential alternative use of δD[subscript K37s] measurements as a proxy for non-thermal,...