Nomia melanderi Cockerell is one of the most efficient pollinators of alfalfa in Eastern Oregon. Emergence begins in June, usually reaches its peak in early July, and may continue into early August. Male emergence precedes female emergence by four or five days. For the first few weeks of this time,...
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...
Seven in vitro trials were conducted to compare the effects of
soaking annual ryegrass straw in solutions of sodium hydroxide (Na₄OH),
potassium hydroxide (KOH), ammonium hydroxide (NH₄OH), or sodium
formate (NaCHO₂) at varying levels. Dry matter digestibility (DDM)
was the criterion used to measure treatment response. A 3 x 3...
The purpose of this study was to explore the relationship
between social acceptance and observed peer interaction in a select
group of preschool children.
The subjects were 30 children enrolled
in two sessions of a child development laboratory sponsored by the
Department of Family Life at Oregon State University.
The...
Succession and organization of rocky intertidal zone surfgrass beds
(Phyllospadix scouleri Hook) were examined experimentally at two sites
on the Oregon coast. The interaction of three attributes of the plant
-- high persistence, high preemption, and slow recovery -- strongly
influences the organization of surfgrass beds. Permanent plots indicate
that...
Workers in colonies of European honey bees Apis mellifera L. clean their
nestmate's body by allogrooming behavior. This behavior may be initiated by
either grooming dancers or by the allogroomers themselves. The first occurs
less frequently (ca. 17 %) than the later (83 %). By using the inner edge of...
The purpose of this study was to explore the relationship between
self concept and behavioral understanding in a group of prospective
preschool teachers. The subjects were 64 female college students
enrolled in either an early childhood education or Child Development/
Family Life program. These students had completed most of the...
The elderly population in our society is increasing both in number
and proportion, with the life expectancy of women increasing more than
men. Their needs have been given increased attention in recent years.
Many studies have been done on clothing for older women, but few have
dealt with the older...
This study focused on the relationship between energy related
behaviors prior to and following structural modifications of the
residence. If energy saving structural modifications are made, will
there also be a concommitant change in energy conserving behavioral
practices? The objectives of this study were: 1) to create a profile of...
Earthquake engineering analyses are often performed using shallow, crustal earthquake motions (e.g., 1940 El Centro). However, large areas of the world are subject to subduction zone earthquake motions (e.g., the Pacific Northwest). A subduction zone earthquake motion is characterized by its long duration (e.g., strong shaking lasts for more than...