An experimental study has been made of the local natural convective
heat transfer coefficient around the circumference of a heated
horizontal cylinder oscillating vertically in water. The heat transfer
surface consisted of a 1 3/8-inch diameter cylinder with a small test
section imbedded in its surface. This enabled data to...
Synthesis of total RNA, DNA, and protein was followed in a
haploid yeast auxotroph during starvation for required amino acids
and uracil, and during shift-up and shift-down conditions.
During amino acid starvation, synthesis of macromolecular
constituents was not immediately affected, reflecting the presence
of large intracellular amino acid pools. Under...
The character of the primary seismic wave in the
range of distances between 100 and 600 km is affected by
such factors as the nature of the source, exponential
attenuation, crustal structure, type of wave propagation,
recording site geology and instrument response. The
first arrivals from the GNOME and SHOAL...
Assay conditions and analytical methods established for the
study of epoxidation of the insecticides aldrin and heptachlor, by
rat liver microsomes have been employed to study the same reaction
catalyzed by trout liver microsomes. At 37° C and pH 8.0, rainbow
trout liver microsomes, incubated with 54.8 millimicromoles of
either...
Opossum shrimp, Mysis relicta Loven, were collected at Upper Waterton Lake, Alberta, Canada in the summer of 1967, terminating a three-year project. Approximately 1,090,000 Mysis were transplanted into Big Cultus, Crescent, Detroit, Fourmile, Ice, Miller, Odell, Olive, Timothy, Waldo, and Wallowa Lakes in an attempt to enhance the quantity of...
The Opossum shrimp Mysis relicta were collected in Upper Waterton Lake, Alberta, Canada in late August and early September 1965. Approximately 320,000 shrimp were introduced into Waldo, Wallowa, Big Cultus and Timothy Lakes in Oregon.
Opossum shrimp Mysis relicta were collected in Upper Waterton Lake, Alberta, Canada, in the summer of 1966 for the second successive year. Approximately 650,000 were collected and introduced into Waldo, Wallowa, Big Cultus, Crescent, and Timothy Lakes in Oregon.
Field, greenhouse, growth chamber and laboratory experiments
evaluated factors affecting establishment, survival and production
of birdsfoot trefoil (Lotus corniculatus L.) and alfalfa (Medicago
sativa L.)
Field studies investigated the effects of a barley companion
crop, seedling year harvest management and nitrogen and phosphorus
fertilization upon stands, survival and subsequent production...
Initial
establishment
of
legume
forage
crops
is
of
prime
importance
in
determining
future
forage
and
seed
production.
The
objective
of
this
study
was
to
determine
the
influence
of
herbicides,
phosphorus
fertilization,
and
seedbed
preparation
on
the
establishment
of
alfalfa
and
birdsfoot
trefoil.
Experiments
were
designed
to
study
the
influence
of...
Experiments were conducted under controlled environments to
investigate the influence of nutrient supply and panicle removal on
tiller and panicle production in orchardgrass. Propagules of two
clones, MID-5 (Clone 0), from the synthetic variety Pennlate, and
Clone B, a locally adapted clone, were utilized for these studies.
Tiller production was...
Morphological changes in five clonally propagated genotypes
of Agrostis L. resulting from variations in environment were
studied in six natural environments extending from southern Oregon
to northern British Columbia. These same clones were also subjected
to four different cutting heights in turf plots. In addition to
the field experiments, they...
A field experiment was conducted to study the influence of cutting
treatments on the yield and quality of non-irrigated alfalfa in
western Oregon.
Spring clipping treatments included (1) not clipped, (2) clipped
when 6 inches high and (3) clipped when 12 inches high. The hay harvest
criteria were (1) near...
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...
A study was conducted of the influence of various climatic and
soil factors on the development of onion pink root disease and of the
influences of temperature, light, pH, carbon and nitrogen sources,
and vitamins on the growth in vitro of an Oregon isolate of the pink
root fungus, Pyrenochaeta...
Research was conducted in a mixed-coniferous forest stand
that was clearcut, burned, and seeded in order to study early plant
succession, grazing influences on native and introduced species, big
game use, and environmental relationships vegetation, animal,
and environmental research was carried out from 1965 to 1967 in
three, five-acre exclosures...