Index Catalog // ScholarsArchive@OSU

Biology, distribution and economic threshold of the strawberry root weevil, Otiorhynchus ovatus (L.), in peppermint

Creator:: Cacka, Joseph Francis
Resource Type:: Masters Thesis
Full Text:: , Otiorhynchus ovatus (L.), in Peppermint by Joseph Francis Cacka A THESIS submitted to Oregon State

Ion exchange membranes and agronomic responses as tools for assessing nutrient availability

Creator:: Salisbury, Steven Earl
Abstract:: Winter wheat is commonly grown in rotation with leguminous and non-leguminous crops in the Willamette Valley. For agronomic, economic, and environmental reasons it is important to understand the influence of previous crops on availability of N and other nutrients. Objectives of this study were: (1) to evaluate the effects of...
Resource Type:: Masters Thesis
Full Text:: by Steven Earl Salisbury A THESIS submitted to Oregon State University in partial

Nitrogen fertilization of winter wheat grown in four rotations in western Oregon

Creator:: Sebastian, Kevin D.
Resource Type:: Masters Thesis
Full Text:: arrundinacea), maize (Zea mays), pea (Pisum sativum), and clover (Trifolium pratense). A different rotation

Applications of radiotelemetry to studies of California quail in western Oregon

Creator:: Kilbride, Kevin M.
Abstract:: A partially automated radio-tracking system with semi-continuous azimuth data collection and XYLOG5 and MAP computer programs for azimuth data analysis was used for studies of California quail (Callipepla californica) at the E.E. Wilson Wildlife Area, Oregon, in 1988 and 1989. Movements of 58 hens were monitored daily to determine nest...
Resource Type:: Masters Thesis
Full Text:: of California Quail in Western Oregon Abstract approved:_Redacted for Privacy \J John A. Craltrd

Differential transmission of strawberry mottle virus by Chaetosiphon thomas Hille Ris Lambers and Chaetosiphon fragaefolii (Cockerell)

Creator:: Eulensen, Gustav Egon
Abstract:: The transmission of strawberry mottle virus (SMV) to Fragaria vesca L. by Chaetosiphon thomasi and C. fragaefolii was studied to determine differences between the two species. Acquisition, inoculation, and retention phases of transmission were described. In all phases, C. fragaefolii was found to be the more efficient vector. Mean transmission...
Resource Type:: Masters Thesis
Full Text:: access period (AAP) reaching a plateau at 12 h. Maximum acquisition efficiency by C. thomasi was

Micropropagation and in vitro plant regeneration of rhododendrons

Creator:: Iapichino, Giovanni
Resource Type:: Masters Thesis
Full Text:: vitro propagation by adventitious shoot regeneration from somatic tissue offers a more efficient

Inheritance of Septoria leaf blotch resistance and the possible influence of heading date and plant height on the disease expression in a winter wheat cross

Creator:: Camacho Casas, Miguel Alfonso
Abstract:: Parental lines, Fi's and segregating populations (F₂, F₃ and BC's) including reciprocals were evaluated under field conditions to determine if genetic resistance per se exists for Septoria Leaf Blotch in a selected winter wheat cross. The experiment was conducted over a three year period with both natural infection and artificial...
Resource Type:: Dissertation
Full Text:: possible influence of heading date and plant height on the disease expression in a winter wheat cross AN

Isozymic and cytological studies on populations of the introduced bee species, Megachile (Eutricharaea) rotundata and M. (Eutricharaea) apicalis

Creator:: Chen, Xiaoshe
Abstract:: Thirteen New World populations of Megachile rotundata and M. apicalis and two Old World populations of M. rotundata were analyzed at 23 enzyme loci using cellulose acetate electrophoresis. Conventional and G- or C-banded karyotypes were also examined in these populations. The principal findings are (1) No differences were found in...
Resource Type:: Dissertation
Full Text:: ; Glenn Fisher and Philippe A. Rossignol of the Department of Entomology; Paul A. Roberts of the

Distributional patterns and taxonomic structure of diatom assemblages in Netarts Bay, Oregon

Creator:: Whiting, Mark Carlos
Abstract:: Epiphytic, planktonic and benthic diatom assemblages were investigated in Netarts Bay, Oregon. Samples were collected for a one-year period from February 1980 to March 1981. A planktonic flora was observed only during periods of offshore enrichment when marine neritic species were abundant and were transported into the bay by tidal...
Resource Type:: Dissertation
Full Text:: investigated in Netarts Bay, Oregon. Samples were collected for a one-year period from February 1980 to March

Effects of tillage on emergence of mint root borer, Fumibotys fumalis Guenée, and on other agronomic factors in peppermint, Mentha piperita L.

Creator:: Talkington, Michael Lee
Abstract:: Studies were conducted in the Willamette Valley of western Oregon to evaluate the effects of plowing (7.5-15 cm deep) and disking (5-10 cm deep) in peppermint, Mentha piperita L., on the following factors: 1) emergence of adult "mint root borer", Fumibotys fumalis Guenée; 2) suppression of common groundsel, Senecio vulgaris...
Resource Type:: Masters Thesis
Full Text:: . Disking reduced stands of S. vulgaris to a limited extent. Plowing significantly reduced false dandelion

ScholarsArchive@OSU

Biology, distribution and economic threshold of the strawberry root weevil, Otiorhynchus ovatus (L.), in peppermint

Ion exchange membranes and agronomic responses as tools for assessing nutrient availability

Nitrogen fertilization of winter wheat grown in four rotations in western Oregon

Applications of radiotelemetry to studies of California quail in western Oregon

Differential transmission of strawberry mottle virus by Chaetosiphon thomas Hille Ris Lambers and Chaetosiphon fragaefolii (Cockerell)

Micropropagation and in vitro plant regeneration of rhododendrons

Inheritance of Septoria leaf blotch resistance and the possible influence of heading date and plant height on the disease expression in a winter wheat cross

Isozymic and cytological studies on populations of the introduced bee species, Megachile (Eutricharaea) rotundata and M. (Eutricharaea) apicalis

Distributional patterns and taxonomic structure of diatom assemblages in Netarts Bay, Oregon

Effects of tillage on emergence of mint root borer, Fumibotys fumalis Guenée, and on other agronomic factors in peppermint, Mentha piperita L.

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