Precommercial thinning (PCT) is an important
timber management practice in the Pacific Northwest.
You should consider it as soon as a young
stand has been established.
The effects of supercritical fluid (SCF) impregnation on physical properties of composites were investigated at various pressures, temperatures, and treatment times with carbon dioxide as the fluid and tebuconazole as a biocide. In general, within the ranges tested, SCF treatment had no negative effects on modulus of rupture (MOR), modulus...
Many species of Populus, particularly cottonwoods of sections Aigeiros and Tacamahaca, remain recalcitrant to genetic transformation. We demonstrate that transgenic trees can be readily produced in several poplar genotypes using wild-type Agrobacterium rhizogenes. Hairy roots were produced in a variety of clones that included Populus trichocarpa Torr. & A. Gray,...
Substrate respiration, mineralizable nitrogen, and nitrogen fixation rates, substrate moisture content, and temperature were measured in trenched and undisturbed plots within two western Oregon Douglas-fir (Pseudotsuga menziesii (Mirb.) Franco) stands. The stands represent two different environments and ages. Woods Creek, the site of the lower elevation mature 70-year-old stand, is...
The most important consideration when choosing a health care provider is your confidence in the individual. While first impressions are important, confidence usually develops with time and experience.
Multiple paleoceanographic proxies in a zonal transect across the California Current
near 42°N record modern and last glacial maximum (LGM) thermal and nutrient gradients. The
offshore thermal gradient, derived from foraminiferal species assemblages and oxygen isotope data,
was similar at the LGM to that at present (warmer offshore), but average...
Meadowfoam (Limnanthes alba Hartw. ex Benth. ssp. alba, Limnanthaceae) is an oilseed crop that requires insect (primarily honey bee) pollination to set seed. Effective honey bee management will
increase meadowfoam yields, which will improve the economic competitiveness of this new resource for Oregon. The purposes of this publication are:
•...
Revised April 1997. 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
Revised April 1997. 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