Anthesis of both staminate and pistillate flowers of Corylus occurs in midwinter. To insure adequate pollination and nut set, these flowers must attain a sufficient hardiness level to withstand low temperatures. This study estimated cold hardiness of Corylus cultivars and species using laboratory freezing of shoots without artificial hardening. In...
This study examines the impact on Pacific Northwest
seafood exporters of the European Union Directive on packaging
and packaging waste management.
The study of the official text of the proposed Directive
was the starting point of our analysis. This allowed us to
give a presentation of the EU Directive and...
Excessive growth by red clover, Trifolium pratense L., grown for seed
interferes with maximum seed production and harvest in Oregon's Willamette Valley.
This study was conducted during 1986 and 1987 on red clover cv. Kenland to
determine if plant height and dry matter production could be inhibited and seed yields...
The effects of harvesting Pacific hake (Merluccius productus)
were examined with a multi-species numerical model composed of
seven logistic growth equations coupled by a food web. The
food web was composed of: California sea lions (Zalophus
californianus), hake, sablefish (Anaplopoma fimbria), spiny
dogfish (Squalus acanthias), a generic rockfish species
(Sebastes...
A study was conducted using data collected from a sample of mint and
vegetable farmers in the Willamette Valley of Oregon. The study identifies the
influence of demographic differences, economic factors and irrigator attitudes on
irrigation efficiency.
Only two of the 19 characteristics theorized to influence irrigation
efficiency proved to...
Balance is the ability to establish an equilibrium between the body and its environment. Balance is a key component which is associated with a variety of movements and postural control. Children with cerebral palsy (CP) have difficulties with movement and postural control due to physical and neurological limitations. The purpose...
It has been observed that edging flitches into lumber
unnecessarily reduces the yield of cut stock. This research
investigated the yield of cut stock from unedged red alder
(Alnus rubra) flitches, and compared it to yields attained
from boards subjected to a variety of edging strategies:
conventional, light-edging, actual, severe...