Six species of Cleridae, including Enoclerus spegeus Fabricius,
E. lecontei Wolcott, E. schaefferi (Barr), E. eximius Mannerheim,
Thanasimus undatulus Say, and an undescribed species of Enoclerus,
were found on Douglas-fir in western Oregon. E. sphegeus was the
only clerid of the six species studied which was primarily associated
with the...
The purpose of this research was to determine whether the transducing phage Pl picks up original bacterial chromosome segments and whether these segments are always the same size. The plan of approach was to grow the donor bacteria Escherichia coli C600 gal⁺ (galactose) in minimal media containing the heavy isotopes...
The objective of this study was to investigate the low seed
germination of 12 varieties of Oregon grown monogerm sugar beet,
Beta vulgaris L., using several methods to determine the germination
potential. The methods were: (1) X-ray radiograph examination,
(2) standard laboratory germination following official rules,
(3) laboratory germination by...
Fuel accumulation and climate shifts are predicted to increase the frequency of high-severity fires in ponderosa pine (Pinus ponderosa Dougl. ex Laws) forests of central Oregon. The combustion of fuels containing large downed wood can result in intense soil heating, alteration of soil properties, and mortality of microbes. Previous studies...
Studies were conducted to establish some characters which
could be used, either in the field or in the laboratory, to differentiate
between annual ryegrass (Oregon), Lolium multiflorum Lam. , and
Linn perennial ryegrass, Lolium perenne L.
Vernation, percentage of glumes covering the spikelets, and
height of seedlings seem to be...
Breeding habitat of Harlequin ducks (Histrionicus
histrionicus) was studied in eastern Prince William Sound,
Alaska, during 1991 - 1993. Streams in Prince William
Sound were surveyed for Harlequin ducks and monitored with
mist nets. Physical characteristics of 24 Harlequin
breeding streams were compared to those of 24 streams not
used...
Maturation rates of monogerm sugar beet seed grown in Western
Oregon were measured quantitatively to determine attainment of maximum
seed development and germination. Seed was collected at various
intervals after anthesis from two hybrid varieties representing the
extremes in resistance (hard bolting) and susceptibility (easy bolting)
to seedstalk development. The...
In this memoir, by alumnus and Zoology Department instructor William J. Gilstrap, the author details various aspects of his life, including: childhood in Missouri, student experience at Oregon Agricultural College (OAC) in the 1890s, and his medical practice in various Oregon locales. Gilstrap also describes in this narrative the origins...
Sampling studies were conducted to compare the efficiency of the four officially recommended methods of sampling small seeds: automatic sampling--at two sampling speeds, hand sampling, Nobbe tier sampling, and stick trier sampling. Synthetic lots of orchard-grass, ryegrass, Kentucky bluegrass, and alfalfa seed were prepared containing known numbers of the common...
The influence of several fertilizer elements on the occurrence
of underdeveloped seeds in monogerm sugar beets (Beta vulgaris L.)
was studied. Lime (CaCO₃), nitrogen, phosphorus and potassium
fertilizer applications were made to sugar beet seed plots at two
locations in the Willamette Valley, Oregon. Seed produced from each
treatment was...
Research was conducted to determine the distance and amount
of outcrossing between varieties of highly fluorescent annual ryegrass
(Lolium multiflorum Lam.) and low-fluorescing perennial
ryegrass (Lolium perenne L.). Studies were conducted under both
spaced-plant and seed production field conditions.
Fluorescence tests on seed collected from low-fluorescing
perennial ryegrass at successive...
Experiments were designed to reveal the accuracy and precision of
four types of automatic sampler prototypes after initial testing indicated
that the single tube vibrator sampler was not drawing a complete
cross section of the seed flow in a vertical column. These experiments
compared the automatic samplers with the trier...
Studies were conducted to determine the variability existing in
repeated fluorescence tests of annual and perennial ryegrass
(Lolium multiflorum and L. perenne, respectively). Sources of
variation considered were within-sample error, among-sample
error, among-germinator error, and among-laboratory error.
These were studied independently and the variation in each was compared
to the...
In a story of his life Les reflects on what he
has gained and what he has lost while seeking success in
the moving and shifting of military and academic life
through homes and schools all over the United States.
He describes himself as between races, languages, and
cultures.
Title IX's passage into law in 1972 set women’s sports on a course toward gender equity with men's sports at the scholastic and collegiate levels, leading to a definitive growth in women’s professional leagues, corresponding athlete salaries, and athletic marketing and promotional prospects. However, disparities currently exist in the availability...
Research was conducted near the Starkey Experimental Forest and Range in
northeastern Oregon. Effects of defoliating bluebunch wheatgrass (Agropyron
spicatum (Pursh) Scribn. and Smith) to increase the quality of regrowth available on
elk (Cervus elaphus nelsoni) winter range were studied from 1988 through 1990.
Clipping treatments were implemented to condition...
A taxonomic study of the genus Ophionectria Saccardo is presented.
The genus is described and the only remaining species, the type species,
Ophionectria trichospora, is described and figured. Ophionectria
trichospora is compared with Nectria haematococca to define relationships
between the two genera.
All other species formerly placed in Ophionectria are...
A project is described wherein a source code browser was implemented based upon tasks performed by software engineers looking for source code modules with only UNIX utilities. These tasks were discovered by observing the actions of software engineers looking for code modules in a library, The success of the implementation...
The effects of late spring defoliation on the winter forage quality of bluebunch wheatgrass
(Agropyron spicatum [Pursh] Scribn. & Smith), Idaho fescue (Festuca idahoensis Elmer) and elk sedge
(Carex geyeri Boott) and the response of wintering Rocky Mountain elk (Cervus elaphus nelsoni Bailey) to
changes in winter range forage quality...
