Two studies were initiated in June of 1981 in order to gain greater understanding of the growth and fruiting habits of field grown strawberries in Oregon's Willamette Valley.
Yield component analysis of 'Benton', Oregon's leading cultivar and an advanced breeding selection, 'OR-US 4356' was conducted during the first (1981) and...
Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
In their modern context questions of heredity have come to be
closely aligned with theories of evolution because all such theories
require the presence of heritable variation. Thus the need for an
understanding of a source of variation and a mechanism for its inheritance
became very apparent with the general...
Published April 1983. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published June 1983. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published June 1983. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the Sea Grant Catalog: http://seagrant.oregonstate.edu/publications
Published March 1983. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
In the last 20 years, a considerable volume of literature has emerged with respect to the efficacy of the market place in the allocation of water resources. Economists have been very willing to apply their tools of optimization in a comparative statics framework to indicate that any resource can be...
Poetry in the People's Republic of China during the past 30 years has been dominated by works intensely political in nature – a kind of poetry known by the name zhengzhi shuqing shi (political lyric). The function of this poetry was to eulogize current political movements and to generate public...
A software system to study network algorithms was implemented on UNIX. Each part of a network algorithm can be written as a single C program which becomes a virtual node in the network. During a simulation all virtualized nodes run as separate processes on a single PDP 11/44. Inter-node communication...
One hundred and fourty-one lambs showing signs of pneumonia
and/or enteritis from four different flocks in western Oregon were
sampled for virus isolation. Two ovine adenoviruses, antigenically
distinct from each other and from bovine adenoviruses, were
isolated from the nasal mucosa and feces of two lambs. The lambs
were showing...
In 1982, Oregon State University Extension Service was again asked to make a winegrape acreage survey in Oregon. Winegrape acreage is currently increasing dramatically and the Table Wine Research Advisory Board (TWRAB) is interested in keeping track of these changes.
In 1981 Extension made a survey of acreages by county...
The nature and extent of niparian vegetation change from 1972 to
1981 in the Willamette River Greenway in Benton and Linn Counties,
Oregon was quantitatively investigated. The study was primarily by
aerial imagery analysis and associated field verification. A classification
of vegetation and land cover within the study area was...
Published April 1983. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Early and late seral tree species were compared for inter-and intraspecific competitive ability; within-population genetic variability; and allocation patterns of soluble sugars and starch seasonally and in response to shade and nitrogen fertilization. Species were Douglas-fir (early seral) and western hemlock (late
seral) from a low elevation habitat; and noble...
The Pacific salmon market may often be characterized by
disequilibrium conditions and less than perfect information. Thus the
study of the decision-making behavior, especially short-run pricing,
of wholesale market participants in this industry requires the use of
alternative models to the conventional, price-taking, perfect
competition model of the firm.
This...
The feasibility of using hollow fiber ultrafi1tration
for clarification, stabilization and preservation of white
grape juice was evaluated. Flux and process parameters of
a hollow fiber membrane ultrafi1tration unit (Romicon pilot
scale, model FXS-MXII), were studied using white Riesling
grape juice. Optimum processing conditions were determined
for different nominal membrane...
Two studies were conducted involving rare earth elements. In the
first study, the use of rare earth diethylenetriaminepentaacetic acid
(DTPA) complexes as stable actiable tracers, a method of stable-isotope
tracing with post-sampling neutron activation analysis, was explored.
The persistence of rare earth DTPA complexes in estuarine waters was
measured in...
A concurrency and resiliency control scheme for a distributed database system with replicated data is discussed. The scheme, true-copy token scheme, uses true-copy tokens in order to designate the physical data copies (true copies) that can be identified with the current logical data that are globally unique, and then it...
A comparative analysis of structures related to
capture and processing of food, in 624 specimens belonging
to 31 species of Sebastes of Oregon was made. The
structures studied were the following: the tooth-bearing
bones (premaxillary, dentary, vomer, palatine); the
maxillary, angular, articular, parasphenoid and glossohyal
bones; the lower limb of...
Published June 1983. Reprinted March 1985. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
This paper deals with the thermal decompositon of
wood slabs under fire conditions. The partial differential
equation is solved numerically by the use of an implicit
finite difference method. Wood is treated as two
components, Lignin and Hemicellulose on one side, and
Cellulose on the other side. The chemical reactions...
Topological Sorting is a standard computation performed on finite partial order relations, for which efficient algorithms are well known.
This work is a study of using a depth-first search of a directed graph to implement topological sorting algorithms. A new algorithm is presented, along with a discussion of how it...
Published October 1983. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published January 1983. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Zooplankton samples taken during daylight periods in a fast flushing estuary on the Central Oregon coast were analyzed for Brachyuran and Anomuran larvae and also for benthic gammaridean amphipods and Myscidacea. Several larval stages of Pinnixa littoralis, Hemigrapsus oregonensis, Pachycheles spp., Cancer oregonensis and Pagurus granosimanus were sufficiently abundant for...
Explains how seedlings grow into mature trees and how stands of trees develop. Describes basic tree growth and growth processes (photosynthesis, respiration, and translocation-assimilation). Discusses how thinning affects individual tree growth and stand growth, including growth responses, thinning shock, tolerance levels of common Pacific Northwest tree species, crown classification systems,...
A thermodynamic analysis of forced geoheat recovery from aquifers
has been accomplished. The system investigated consists of a single
recharging-discharging well pair, in a horizontally extensive aquifer,
with either power generation or space heating as surface applications.
The space heating systems investigated are (i)direct heating, (ii)heat
pumps and (iii)a combination...
A vital safety concern in the analysis of nuclear power reactors
is the thermal hydraulic behavior of the reactor coolant system
under steady state and transient conditions. The goal of this
study has been to develop an appropriate model for the U-tube type
steam generators in a typical pressurized water...
Published March 1983. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published May 1983. Reprinted July 1984. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Four different plot types were established in shrub and tree comunitities in Little Elk Valley in southwest Oregon. Ten functional (F) plots were cleared of all vegetation in a radius of three times the height of the surrounding vegetation around a single Pacific madrone (Arbutus menziesii Pursh.) tree. Ten competition...
This study evaluates the feasibility of retrofitting a rotary
dryer to a hog fuel boiler, using the boiler exhaust gases as the
drying medium.
Two simulation models were developed. As substantiated by experimental
measurement of existing boiler/dryer systems, each model
accurately predicts system performance given site-specific parameters
such as boiler...
The sand sole (Psettichthys melanostictus) is one of the finest quality sole species harvested by Oregon trawlers. It commands a correspondingly high price in the market, second only to petrale sole. The sand sole gets its name for its known affinity for sandy, shallow stretches of the ocean floor. A...
Expanding groundfish production on the West Coast and in the
United States in total, over the past decade, has increased
competition in the groundfish market. During the same period,
regulations have evolved to control production in the groundfish
industry for the purpose of conserving the resource. Other
regulations exist to...
Birds affected the community structure of an Oregon rocky shore by
preying upon mussels (Mytilus spp.) and limpets (Collisella spp.). The
impact of such predation is potentially great, as mussels are the
competitively dominant mid-intertidal space-occupiers, and limpets are
important herbivores in this community.
Prey selection by birds reflects differences...
This thesis describes a case study of the effects of five systems
of grazing on watershed values in a deteriorated riparian area. Soil
infiltration, bulk density and penetrability, streambank edge movement
and coliform bacteria were monitored for seven years along a stream
in the Blue Mountains of northeastern Oregon. For...
A quantitative and predictive measure of seedling vigor during the regeneration chain would be of utmost help for forest regeneration work. This was the impetus
to study the possibility of using abscisic acid (ABA) concentration of Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) needles as an indicative measure of seedling vigor prior...
The major purpose of this study was to test the relationship between
students' cerebral lateralization for the Arabic language and
their achievement in science. A secondary purpose was to investigate
handedness as a factor in that relationship. The experiment was conducted
in the City of Jeddah, Saudi Arabia, using dichotic...
This thesis addresses the research question: How do different
physical layouts of high-rise college dormitories affect residents'
perceptions of satisfaction and crowding? The purpose of the research
was to outline some design strategies that could be used to provide
designers with information which can help them to design better high...
In this report we describe a preliminary version of a temperature/conductivity profiler that combines the calibration accuracy of a CTD with the vertical resolution of a microstructure instrument and the ease of deployment of an XBT. We also describe the results of a test of this version on a month-long...
Published June 1983. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The 109-year-old Porter house in Shedd, Oregon is one of few
remaining, well-preserved examples of Rural Gothic architecture in the
Willamette Valley. This study attempts to record its history: the
economic circumstances which led the pioneering David Putnam Porter
family to build this relatively large house, the family background,
and...
The lentil strain of pea seedborne mosaic virus, PSbMV-L, was
distinguished from the standard isolates of PSbMV by a natural inoculum
reservoir in lentil seed and by separate resistance genes in Pisum
and Lens. PSbMV-L was intermediate in symptom severity between the
standard and New Zealand isolates of PSbMV.
Seed...
The benthic amphipod Corophium salmonis was sampled seasonally from two sites (Desdemona Sands and Grays Bay) in the Columbia River estuary. Populations of C. salmonis at both sites were found to have a two generation per year life cycle, a spring generation and a fall generation. The spring generation juveniles...
A parthenocarpic breeding line, Oregon T5, from
Oregon State University, was crossed with several commercial
cultivars. Progenies were studied for 2 years
as both direct-seeded plants and transplants in the
field at Corvallis, Oregon to determine the inheritance
of parthenocarpy in Oregon T5. Both quantitative
and qualitative measurements of parthenocarpy...
This study evaluated the effect of soil compaction on the growth
of natural regeneration on volcanic ash-influenced soils in the
southern Washington Cascades. Growth of 9 to 18 year-old sapling-.
sized Ponderosa pine (Pinus ponderosa Laws.) was studied on sites
ranging from 915 to 1006 m elevation in an area...
In a swine production and breeding experiment, Yorkshire
gilts were evaluated for the influences of heredity-and some environmental components on occurrence of puberty in gilts in confinement. In the first experiment, 186 Yorkshire gilts reared and
maintained in total confinement were used in a study to assess
effects of several...
The incidence and duration of breast feeding were determined
via telephone questionnaires from a sample of 95 women who delivered
healthy infants during the month of September 1982, in the greater
metropolitan area of Portland, Oregon. This sample was limited in
that the women were married, predominately white, over 25...
Case history analysis, cross spectra and multiple regression analysis have been used in a study of low-pass filtered sea level records from the Pacific mainland coast of Mexico in 1971 and 1973–75. During the summer-fall season (May–October), sea level variability is characterized by strong alongshore coherence and nondispersive, poleward phase...
The role of orange coloration in the breeding behavior of
Gambelia wislizenii was examined in the Alvord Basin of southeast
Oregon. Behavioral observations of free ranging lizards supplemented
field experiments where I manipulated the sex and color of lizards
encountered by resident female G. wislizenii before and after they
acquired...
Borrowed funds finance a majority of equipment purchases and
production costs in agriculture. The costs of borrowing, however,
have not been stable nor has the determination of interest payments
remained the same in recent years. As interest rates become increasingly
volatile and variable rate loans replaced constant rate
loans, the...
Gathering and burning firewood in heavily used subalpine areas contributes to campsite deterioration. Forest Service policy directs wilderness managers to implement the principle of nondegradation. As a result, campfires may be prohibited in areas where fire-related impacts
are significant.
The Lakes Basin and Ice Lake Travel Zones in the Eagle...
This study was initiated to make some preliminary
evaluations of the effects of red alder (Alnus rubra,
Bong.) leaf fall on stream water quality, particularly
water color. Laboratory tests were also conducted
to better understand the effects of leaf loading, duration
of leaf leaching, and type of leaching on
changes...
Intact and ovariectomized (OVX) pony mares were randomly assigned to treatments of morphine (M), naloxone (N), or a saline control (C) to determine if endogenous opioid peptides (EOP) play a role in equine seasonal breeding. Morphine was expected to decrease luteinizing hormone (LH), whereas N (an opiate antagonist) should in...
The effects of L-ascorbic acid, thiamine HC1, or L-cysteine on
acetaldehyde blood levels and disposition were investigated in acetaldehyde-
treated rats. Rats were treated with ascorbic acid (2
mmoles/kg), thiamine (0.24 mmole/kg), or cysteine (2 mmoles/kg) one
hour before the administration of acetaldehyde (6 mmoles/kg). The
results show that each...
This study examined the effects of a group treatment of Self-Instructional
Training (S.I.T.) with an institutionalized aged (65
or over) population. The purpose of the S.I.T. program was to
increase the positive content of speech elicited in a structured
social interaction. S.I.T., as developed for this study, followed
Meichenbaum's three...
Three levels of dietary crude protein (8.6, 11.4, and 17.2) were
fed to 24 pony mares to determine the effects on the estrous cycle,
conception rate, and serum progesterone concentrations. Mares were allotted into three treatment groups designated as low protein (LP),
medium protein (MP), and high protein (HP). Following...
I. The Effect of Artificial Photoperiod on Eating Behavior and Other
Behavioral Observations of Dairy Cows.
Twenty-eight cows were randomly assigned to a dairy photoperiod of
18 h light and 6 h darkness or to continuous light and observed 1 d each
month from December 1981 to February 19.82. Lighting...
Contrasted to the rich body of literature on ill children in
medical settings, well children's reactions to routine health care has
drawn little attention. This study assessed healthy children's under
standing of their bodies, medical procedures, and how this knowledge
relates to their behavior during routine health care. The study...
The effect of vitamin B-6 (VB6) deficiency in mice on host
susceptibility to primary and secondary Moloney-sarcoma virus
(MSV)-induced tumor growth, cytotoxic activities of T cells,
antibodies and natural killer (NK) cells, and phagocytosis by
macrophages was examined. Five- to six-week old female C57B1/6 mice
were fed 20% casein diets...
The stability of dopamine in dextrose 5% water
subjected phototherapy was assessed.
Solutions of dopamine (1000 mcg/ml) were prepared
and triplicate samples were subjected to one of three
light (normal, dark, phototherapy) and two flow
(2ml/hr. and no flow) conditions at ambient room
temperature. Photo-irradiance was maintained between 5.1
and...
Fourteen multiparous Holstein cows were paired by stage of
lactation and previous years milk yield and 14 Holstein first-calf
heifers were paired by stage of lactation. One member of each pair
was assigned to a 24L:OD or a 18L:6D photoperiod for 16 wk during
winter 1981 (Experiment 1). A similar...
The effect of photoperiod and temperature on ovarian
follicle development and fat production was studied
in a colonized population of CuZex peus Speiser from
Philomath, Oregon.
Females were subjected to simulated fall conditions
of photoperiod and temperature. Under a combination of
short photoperiod and low temperature, there were various
effects...