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Filtering by: Subject Rare plants -- Northwest, Pacific Decade 1980-1989

Population dynamics, distribution, and control of nematodes in highbush blueberries

Creator:

Schroeder, Jan-Marie

Abstract:

Fluctuations in population density of Pratylenchus sp., Trichodorus sp., and Xiphinema americanum s. 1. in three blueberry fields were determined monthly for one year. Pratylenchus densities were greatest in August and least in October. Three distinct periods of population growth occurred; during January, April, and between June and August. Trichodorus...

Resource Type:

Masters Thesis

Full Text:

harbor plant parasitic nematodes. Similarly, nematode testing laboratories in the Pacific Northwest
Productivity interfirm comparison : methodologies with a special application to the Northwest food processors

Creator:

Park, Tongkyu

Abstract:

Based on the premise that interfirm comparison can be an effective productivity improvement tool, productivity interfirm comparison (PIC) methods are examined in this research. The first part is an extensive literature review regarding the conventional interfirm comparison (IFC) scheme accepted widely in many countries outside the United States. Then, the...

Resource Type:

Dissertation

Full Text:

special application to the Northwest food processors AN ABSTRACT OF THE THESIS OF Tongkyu Park for the
Mt. St. Helens ash : considerations of its fallout on rangelands

Creator:

Sneva, Forrest, Britton, Carlton M., Mayland, H. F., Buckhouse, John, Evans, Raymond A., Young, James A., and Vavra, Martin

Abstract:

Field and laboratory studies were conducted on volcanic ash from Yakima, Moses Lake, Spokane, Washington, and Moscow, Idaho, three weeks after the May 18, 1980, eruption of Mt. St. Helens in southwestern Washington. These studies examined 1) the chemical, physical, and water retentivity properties of the ash, 2) the effect...

Resource Type:

Technical Report

Full Text:

effects of the ash over the long term, both on individual native plants and the native and seeded plant