Index Catalog // ScholarsArchive@OSU

Nutritional value of several Opuntia species

Creator:: Ben-Thlija, Abdellaziz
Abstract:: Little is known about cactus nutrients, their proportions in different species and the variability of these proportions with season. In the scant literature available on Opuntia species, no systematic survey has been published to document and compare the nutritional qualities of different species. Also, no studies have been done to...
Resource Type:: Masters Thesis

The feasibility of using diploid by tetraploid crosses to obtain triploid hops (Humulus lupulus L.)

Creator:: DeNoma, Jeanine Streeter
Abstract:: The hop (Humulus lupulus L.) is a dioecious, diploid (2n=2x=20) species. Triploid hops (2n=3x=30) are easily obtained from tetraploid by diploid crosses and are preferred because of their natural seedlessness and increased vigor. The female inflorescence is used for flavoring beer. Because brewers require product consistency, the brewing characteristics of...
Resource Type:: Masters Thesis

Fire effects on vegetation diversity, structure, and successional dynamics in shrub-steppe and mixed conifer environments of the Hells Canyon, Idaho

Creator:: Havlina, Douglas William
Abstract:: The effects of fire severity on post-fire succession and shrub demography were quantified in shrub-steppe grasslands and subalpine forests in the Hells Canyon of the Payette National Forest, Idaho. Following the 1988 Eagle Bar Fire, species frequency, community diversity, fire adaptations, and stand ages were quantified at 12 plots in...
Resource Type:: Masters Thesis

Vegetation composition and response to fire of native Willamette Valley wetland prairies

Creator:: Pendergrass, Kathy L. (Connelly)
Abstract:: Fires set by Native Americans were important in shaping and maintaining Willamette Valley prairie plant communities. With fire exclusion after Euro-American settlement in the 1840's, composition of the remaining prairies shifted toward shrub and tree dominance with a concomitant decline in endemic prairie plant populations. I hypothesize that by restoring...
Resource Type:: Masters Thesis

Demography of medusahead on two soil types : potential for invasion into intact native communities

Creator:: Miller, Heather C.
Resource Type:: Masters Thesis
Full Text:: annotated bibliography. Oregon State University Agricultural Experiment Bulletin 644. WIT 1991

Understory vegetation response and nitrogen cycling following cutting of western juniper

Creator:: Bates, Jonathan D.
Abstract:: Since the late 1880's western juniper has expanded in range and increased in density in sagebrush-bunchgrass, riparian, and forested plant communities of the Pacific Northwest. Succession to western juniper woodland has been shown to reduce the productivity and diversity of the understory component, result in concentration of soil nutrients beneath...
Resource Type:: Dissertation
Full Text:: want to thank the Eastern Oregon Experiment Station-Burns and Rangeland Resources Department for

Intercropping trees in a vegetable production systems : a holistic inquiry

Creator:: Seiter, Stefan
Resource Type:: Dissertation

Spatial patterns of tree effects on pasture production in open canopied agroforests

Creator:: Harris, Norman Rex
Resource Type:: Masters Thesis
Full Text:: difference between position estimates received by a referenced base station and its known location are

Biology and management of glyphosate-resistant creeping bentgrass

Creator:: Hancock, Daniel M.
Abstract:: A two year study was conducted at two locations to determine the effect of three perennial ryegrass (Lolium perenne L.) row spacings on creeping bentgrass (Agrostis stolonfera L.) biomass and seed production. At Location 1 in 2002, the creeping bentgrass biomass within the 7.62 cm row spacing was less than...
Resource Type:: Masters Thesis
Full Text:: Agriculture Experiment Station, Hermiston, Oregon and at Lewis Brown Horticulture Research Farm, Corvallis

The effects of defoliation on Bromus tectorum seed production and growth

Creator:: Mayer, Kara Hempy
Abstract:: Cheatgrass (Bromus tectorum L.) is a widespread exotic weed in the Intermountain sagebrush steppe. An annual grass, it is highly prolific and very competitive with native perennial grass seedlings. A clipping experiment carried out at two cheatgrass-dominated sites (Lincoln Bench and Succor Creek) in eastern Oregon analyzed effects of defoliation...
Resource Type:: Masters Thesis

ScholarsArchive@OSU

Nutritional value of several Opuntia species

The feasibility of using diploid by tetraploid crosses to obtain triploid hops (Humulus lupulus L.)

Fire effects on vegetation diversity, structure, and successional dynamics in shrub-steppe and mixed conifer environments of the Hells Canyon, Idaho

Vegetation composition and response to fire of native Willamette Valley wetland prairies

Demography of medusahead on two soil types : potential for invasion into intact native communities

Understory vegetation response and nitrogen cycling following cutting of western juniper

Intercropping trees in a vegetable production systems : a holistic inquiry

Spatial patterns of tree effects on pasture production in open canopied agroforests

Biology and management of glyphosate-resistant creeping bentgrass

The effects of defoliation on Bromus tectorum seed production and growth

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