Index Catalog // ScholarsArchive@OSU

Ozone inhibition of transpiration and photosynthesis of two soybean (Glycine max. [L.] Merr.) cultivars

Creator:: Yingjajaval, Suntaree
Resource Type:: Masters Thesis
Full Text:: wish to thank Dr. C. T. Youngberg, and Dr. H. H. Wickman for their willingness to serve on my

Phytosociology of the ponderosa pine type on pumice soils in the Upper Williamson River Basin, Klamath County, Oregon

Creator:: Volland, Leonard A.
Abstract:: The study was conducted over approximately 191,000 acres in central Klamath County, Oregon. The research had three objectives: first, to describe and classify the seral and near-climax vegetation by using polyclimax principles; secondly, to determine the southern extension of five plant associations and one plant associes as previously described by...
Resource Type:: Masters Thesis
Full Text:: writer is grateful to the members of his graduate committee (Drs. C. E. Poulton, C. T, Youngberg, W

Characterization of selected plant communities within the Tillamook Burn in northwestern Oregon

Creator:: Bailey, Arthur W.
Abstract:: A study was initiated in 1961 to characterize seral plant communities in a part of the Cedar Creek drainage in the Tillamook Burn. Stratification of vegetation into ecological units was a necessary first step in conifer-animal damage studies supported by the Oregon State Game Commission. Reconnaissance information was recorded in...
Resource Type:: Masters Thesis
Full Text:: members of my com mittee: Dr. D. W. Hedrick, Mr. L. W. Kuhn, and Dr. C. T. Youngberg. The writer is

An ecological reconnaissance of the artemisia steppe on the east central Owyee uplands of Oregon

Creator:: Culver, Roger Norman
Abstract:: As the management of range lands is intensified or as improvement activity is increased, a critical need is seen to refine the understanding of the ecology of these lands. If soil surveys on range lands are to be meaningful and useful, the relationship between the fundamental ecological units and the...
Resource Type:: Masters Thesis
Full Text:: - - Dr. C. T. Youngberg, Dr. D. W. Hedrick, and Dr. W. W. Chilcote. The writer is grateful for support

Comparative study of some soil characteristics of grassland and forest/grassland transition in western Oregon

Creator:: Ezenwa, Matthew Ikechuku Sunday
Abstract:: Vegetation as a soil-forming factor was studied under forest transition and grass while attempting to keep other soil forming factors constant in the western part of the Willamette Valley, Oregon. The physiographic units consist chiefly of the interior foothills and slopes formed from an old basaltic flow with some interspersed...
Resource Type:: Masters Thesis
Full Text:: . Chester T. Youngberg for their suggestions and for serving on my committee. Thanks are also extended to

Tillering, lodging, dry matter partitioning, and seed yield in ryegrass (Lolium spp.) as affected by the plant growth regulator paclobutrazol

Creator:: Hunter, James L.
Abstract:: Seed yield in ryegrass (Lolium spp.) is the product of the number of fertile tillers per unit area and seed weight per spike at maturity. These components of yield develop through a series of growth stages beginning with tiller bud initiation and finishing with seed filling. Environmental conditions during plant...
Resource Type:: Masters Thesis
Full Text:: . Appreciation is extended to Dr. H. W. Youngberg, Dr. E. H. Gardner, and Dr. T. E. Bedell for serving as

Growth and forage quality of tall fescue (Festuca arundinacea schreb.) and perennial ryegrass (Lolium perenne L.) as affected by mefluidide

Creator:: Manurung, Sabam Oloan
Abstract:: Field study with 5 tall fescue genotypes treated at the vegetative growth stage, with 0, 0.28, 0.56, and 0.84 kg/ha of mefluidide was initiated in July, 1980. The regrowth of these plants were again treated at the booting growth stage in April, 1981, with the same rates of mefluidide as...
Resource Type:: Masters Thesis
Full Text:: . Youngberg, Dr. Thomas C. Moore and Dr. William M. Proebsting for their interest and for serving as members

Size distribution of chemically extracted quartz used to characterize fine-grained sediments

Creator:: Dauphin, J. P. (Joseph Paul)
Abstract:: Quartz is an ubiquitous component of marine sediments. Textural characteristics of this component reflect the dynamics of its transport and at the same time are indicative of its source. Quartz may be extracted from marine sediments by means of a sodium pyrosulfate fusion and hydrofluosilicic acid dissolution without significantly modifying...
Resource Type:: Masters Thesis
Full Text:: carbon 14 dates. I also wish to thank Dr. T. C. Moore of the Department of Oceanography, Oregon State

Impact of lees content, nitrogen, and elemental sulfur on volatile sulfur compound formation in Vitis vinifera L. cv. 'Pinot noir' wine

Creator:: Kraft, Daniel N.
Abstract:: One of the most common problems in wine production is the formation of hydrogen sulfide (H₂S) and other volatile sulfur compounds (VSCs), which can mask positive aromas at low concentrations and result in unpleasant aromas such as rotten egg, cabbage, garlic, and rubber at higher concentrations. Despite the large body...
Resource Type:: Masters Thesis
Full Text:: at 27°C and H2S production was again measured using lead acetate tubes. Wines were assessed for

The effects of atrazine on growth of flax (Linum usitatissimum L.) plants and on yield, chemical composition and germination of flax seeds

Creator:: Locatelli, Eduardo Atilio
Abstract:: Reports of previous research indicated a stimulatory effect of triazine herbicides on growth, yield and protein content of plants and seeds of various species. Studies were conducted in the greenhouse, laboratory and field to investigate the effects of atrazine (2-chloro-4-ethylamino-6-a sopropylarnino- s-triazine) on growth, yield, seed composition, and seed germination...
Resource Type:: Masters Thesis
Full Text:: first draft of my thesis; to Dr. T. C. Moore and Dr. A. P. Appleby for their ex cellent suggestions

ScholarsArchive@OSU

Ozone inhibition of transpiration and photosynthesis of two soybean (Glycine max. [L.] Merr.) cultivars

Phytosociology of the ponderosa pine type on pumice soils in the Upper Williamson River Basin, Klamath County, Oregon

Characterization of selected plant communities within the Tillamook Burn in northwestern Oregon

An ecological reconnaissance of the artemisia steppe on the east central Owyee uplands of Oregon

Comparative study of some soil characteristics of grassland and forest/grassland transition in western Oregon

Tillering, lodging, dry matter partitioning, and seed yield in ryegrass (Lolium spp.) as affected by the plant growth regulator paclobutrazol

Growth and forage quality of tall fescue (Festuca arundinacea schreb.) and perennial ryegrass (Lolium perenne L.) as affected by mefluidide

Size distribution of chemically extracted quartz used to characterize fine-grained sediments

Impact of lees content, nitrogen, and elemental sulfur on volatile sulfur compound formation in Vitis vinifera L. cv. 'Pinot noir' wine

The effects of atrazine on growth of flax (Linum usitatissimum L.) plants and on yield, chemical composition and germination of flax seeds

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