Index Catalog // ScholarsArchive@OSU

Fertilization impacts on Swiss needle cast disease severity in western Oregon

Creator:: Mulvey, Robin L., Shaw, David C., and Maguire, Douglas A.
Abstract:: The influence of fertilization on disease severity is unknown in most forest pathosystems. Fertilization treatments were randomly applied to 0.01 ha plots centered on individual dominant or co-dominant Douglas-fir trees in ten Douglas-fir stands from coastal Oregon to the foothills of the Oregon Cascade Range, USA. This region is affected...
Resource Type:: Article
Full Text:: (95) 258 (40) MNN 4.6 (0.4) 12.4 (1.9) 155 (36) 231 (14) HAK 5.1 (0.1) 11.2 (1.0) 260 (31) 155 (13

A general theory of the spectroscopic properties of partially ordered ensembles. I. One vector problems

Creator:: Friesner, Richard, Nairn, John A., and Sauer, Kenneth
Abstract:: We have developed a method for determining the response of a static, partially ordered ensemble of molecules to various types of electromagnetic probes. In our formalism a physical model is constructued for the orientational distribution function, which is represented as a volume integral over a set of weighting functions. Procedures...
Resource Type:: Article
Full Text:: 0021-9606/80/010221-10$01.00 © 1980 American Institute of Physics 221 Downloaded 26 Aug 2013 to

A study of a stocking survey system and the relationship of stocking percent as determined by this system to number of trees per acre

Creator:: Bever, Dale N.
Abstract:: This study was initiated and designed, first, to determine the reliability of the stocking survey system, and, second, to construct free hand curves which would give the ratio of percent of stocking to number of trees per acre.
Resource Type:: Technical Report
Full Text:: h1VTSE 40 80 4 N 6 N 32 SES1 40 81 9 S 6 W 10 NESW 40 82 11 5 1 E 13 NENE 40 83 5 N 10 TJ 20 SENE 40 84 6

Impact of postfire logging on soil bacterial and fungal communities and soil biogeochemistry in a mixed-conifer forest in central Oregon

Creator:: Jennings, Tara N., Smith, Jane E., Cromack, Kermit, Jr., Sulzman, Elizabeth W., McKay, Donaraye, Caldwell, Bruce A., and Beldin, Sarah I.
Abstract:: Postfire logging recoups the economic value of timber killed by wildfire, but whether such forest management activity supports or impedes forest recovery in stands differing in structure from historic conditions remains unclear. The aim of this study was to determine the impact of mechanical logging after wildfire on soil bacterial...
Resource Type:: Article
Full Text:: ml tube. Samples were placed in a cooler, transported to the lab and stored in a −80°C freezer until

Effect of process variations during supercritical fluid impregnation on cyproconazole retention and distribution in ponderosa pine sapwood

Creator:: Kang, Sung-Mo, Levien, Keith L., and Morrell, Jeffrey J.
Abstract:: The effect of process variations under supercritical conditions on cyproconazole retention and distribution in ponderosa pine sapwood boards was assessed. While pressure and temperature appeared to affect biocide solubility to some extent, the overall results suggested that biocide movement into wood was influenced more by diffusion than bulk flow. Biocide...
Resource Type:: Article
Full Text:: long). The elution solvent consisted of mobile phase A (55% acetonitrile/ 45% buffer) and B (95

Methylisothiocyanate fumigant content of Douglas-fir heartwood at various moisture levels after treatment with solid sodium N-methyldithiocarbamate

Creator:: Lebow, Stan T. and Morrell, Jeffrey J.
Abstract:: The relationship between moisture content and the presence of methylisothiocyanate (MITC) in wood following various applications of sodium n-methyldithiocarbamate (NaMDC) was investigated with small Douglas-fir heartwood blocks. While MITC levels were initially higher in wetter blocks, MITC levels in drier blocks remained more stable over the 8-week test period. The...
Resource Type:: Article
Full Text:: - ameter) glass column packed with 10% Car- bowax@ 20M on 80/ 100 Supelcoport@ . Op- erating conditions

In-situ measurement of dimensional changes during supercritical fluid impregnation of white spruce lumber

Creator:: Kim, Gyu Hyeok and Morrell, Jeffrey J.
Abstract:: Supercritical fluids can markedly enhance preservative treatment of wood, but the high pressures employed can lead to collapse. We investigated the effects of the rates of pressure application and release on displacement of white spruce lumber during supercritical impregnation with carbon dioxide. Displacement was greatest when pressure was rapidly increased...
Resource Type:: Article

Production of fungal protoplasts from selected wood-degrading fungi

Creator:: Rui, Chen and Morrell, Jeffrey J.
Abstract:: Studies of the effects of various chemicals on fungal growth are difficult to perform on filamentous fungi because of the difficulty of observing the protoplasm through the rigid hyphal wall, and because most activity occurs in the region near the hyphal tip. However, hyphae can be exposed to certain enzymes...
Resource Type:: Article

Does photosynthetic bark have a role in the production of core vs. outer wood?

Creator:: Gartner, Barbara L.
Abstract:: This paper hypothesizes a correlation in some species between the cambial age of transition from core (juvenile) to outer (mature) wood and the cambial age of transition from photosynthetic to non-photosynthetic bark. Secondly, this paper hypothesizes that the relationship is causal: a signal produced in relation to the photosynthetic bark...
Resource Type:: Article

Variation in the anatomy and specific gravity of wood within and between trees of red alder (Alnus rubra Bong.)

Creator:: Gartner, Barbara L., Lei, Hua, and Milota, Michael R.
Abstract:: Six 40-year-old red alders (Alnus rubra Bong.) were harvested from a mixed stand of A. rubra and big-leaf maple (Acer macrophyllum Pursh) in the Oregon Coast Range to evaluate variation in their wood characteristics at two heights. Because the trees had a slight lean (4 to 14°), we sampled along...
Resource Type:: Article

ScholarsArchive@OSU

Fertilization impacts on Swiss needle cast disease severity in western Oregon

A general theory of the spectroscopic properties of partially ordered ensembles. I. One vector problems

A study of a stocking survey system and the relationship of stocking percent as determined by this system to number of trees per acre

Impact of postfire logging on soil bacterial and fungal communities and soil biogeochemistry in a mixed-conifer forest in central Oregon

Effect of process variations during supercritical fluid impregnation on cyproconazole retention and distribution in ponderosa pine sapwood

Methylisothiocyanate fumigant content of Douglas-fir heartwood at various moisture levels after treatment with solid sodium N-methyldithiocarbamate

In-situ measurement of dimensional changes during supercritical fluid impregnation of white spruce lumber

Production of fungal protoplasts from selected wood-degrading fungi

Does photosynthetic bark have a role in the production of core vs. outer wood?

Variation in the anatomy and specific gravity of wood within and between trees of red alder (Alnus rubra Bong.)

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