Index Catalog // ScholarsArchive@OSU

Spring establishment of orchardgrass and tall fescue seed crops with cereal companion crops

Creator:: Chastain, Thomas G.
Abstract:: Orchardgrass and tall fescue seed crops are commonly springplanted in Oregon, but do not produce a marketable crop during the first growing season. Establishing orchardgrass and tall fescue with cereal companion crops would provide income during the seeding year and could increase seed production profits. This study was conducted to...
Resource Type:: Dissertation
Full Text:: Crops INTRODUCTION The production of high quality orchardgrass (Dactylis glomerata L.) and tall

Meiotic chromosome behavior in two tall fescue (Festuca arundinacea Schreb.) genotypes and their sterile hybrid

Creator:: Vásquez, Raul Moreno
Abstract:: Two diverse genotypes of tall fescue, Festuca arundinacea Schreb (6X=42), with normal fertility, produced upon intercrossing, vigorous F ₁ hybrid plants that were sterile. One parent genotype (P₁) was from P. I. 234-906, introduced from Switzerland and the other (P₉) was an introduction from Turkey, P. I. 174-209. P₁ and...
Resource Type:: Dissertation
Full Text:: laboratory and facilities. I would also like to thank Dr. D. 0. Chilcote, Dr. K. L. Chambers, Dr. W. W

Ovule characteristics of two tall fescue (Festuca arundinacea Schreb.) genotypes and their sterile hybrid

Creator:: Beuselinck, Paul Richard
Resource Type:: Dissertation
Full Text:: expressed to Drs. D. I. Mills, K. L. Chambers, C. J. Weiser, and D. 0. Chilcote for their interest as

Chloroplast DNA variability and phylogeny in the California closed cone pines

Creator:: Hong, Yong-pyo, 1958-
Abstract:: Chloroplast DNA (cpDNA) variability and phylogeny were studied via analysis of restriction site mutations and DNA sequencing in a complex of three closely related species of pines: Pinus radiata D. Don, P. attenuata Lemm., and muricata D. Don. Genomic DNA from 384 trees representing 20 populations in the complex were...
Resource Type:: Dissertation

Tracheal mite parasitism of honey bees

Creator:: Royce, Lynn A.
Abstract:: The tracheal mite, Acarapis woodi (Rennie), parasitizes the honey bee, Apis mellifera L., an insect used extensively by humans for pollination of domestic crops and for bee products, primarily honey. This parasite was first discovered in 1921 on the Isle of Wight, a small island situated in the English Channel...
Resource Type:: Dissertation
Full Text:: . Becker, R. Feyereisen, and K. L. Chambers for serving on my graduate committee. I am most indebted to

A taxonomic revision of the Nearctic species of Apateticus Dallas and Podisus Herrich-Schaeffer (Heteroptera:Pentatomidae:Asopinae)

Creator:: Phillips, Kathryn Ann
Resource Type:: Dissertation
Full Text:: University, Fort Collins, (CSU), Dr. W. D. Fronk; Cornell University, Ithaca, NY, (CU), Dr. L. L. Pechuman

A revision of the genus Notiphila Fallén (Diptera:Ephydridae) from America north of Mexico

Creator:: Mathis, Wayne N.
Abstract:: The North American species of the shore fly genus Notiphila Fallen were taxonomically revised. Over 13,000 specimens were examined from throughout the Nearctic Region and information relating to the biology of many species occurring in the West was gathered from both field and laboratory studies. Previously used characters were reevaluated;...
Resource Type:: Dissertation
Full Text:: Entomology Redacted for Privacy Dean of Graduate School L.) Date thesis is presented April 12, 1976 Typed

A revision of the genus Deraeocoris Kirschbaum (Heteroptera:Miridae) from western America north of Mexico

Creator:: Razafimahatratra, Vincent de Paul
Abstract:: The genus Deraeocoris Kirschbaum of western America north of Mexico was revised. Approximately 10,000 specimens from the Nearctic Region were examined. Taxonomic characters used by previous authors were reevaluated. In addition to the male parameres, the male vesica and the female posterior wall of the bursa copulatrix and sclerotized rings...
Resource Type:: Dissertation
Full Text:: kindly loaned specimens and made this study possible: Cornell University (CU), Ithaca, New York, Dr. L

Description of the plant communities and succession of the Oregon coast grasslands

Creator:: Ripley, James Douglas
Abstract:: In an effort to describe the plant communities and succession of the Oregon coastal grasslands, vegetation and environmental data were collected from 75 stands at 24 separate locations ranging from Cape Falcon in Tillamook County to Cape Ferrelo in Curry County. The vegetation data consisted of cover and frequency values...
Resource Type:: Dissertation
Full Text:: thank the other members of my graduate committee, Professors Kenton L. Chambers, Garvin D. Crabtree

A systematic study of the genus Phytocoris Fallén (Heteroptera:Miridae) in western North America

Creator:: Stonedahl, Gary Michael
Abstract:: The western Nearctic species of the genus Phytocoris Fallen were taxonomically revised. Over 15,000 specimens were examined. Information concerning host plant associations and distributions was compiled and summarized for use by future researchers. External morphological features and characters of the male genitalia were used to distinguish species. The genital tubercles...
Resource Type:: Dissertation
Full Text:: , Dr. Andrew P. Moldenke, Dr. Paul W. Oman, Dr. Loren K. Russell, Mrs. Becky L. Fichter, Mr. Gary M

ScholarsArchive@OSU

Spring establishment of orchardgrass and tall fescue seed crops with cereal companion crops

Meiotic chromosome behavior in two tall fescue (Festuca arundinacea Schreb.) genotypes and their sterile hybrid

Ovule characteristics of two tall fescue (Festuca arundinacea Schreb.) genotypes and their sterile hybrid

Chloroplast DNA variability and phylogeny in the California closed cone pines

Tracheal mite parasitism of honey bees

A taxonomic revision of the Nearctic species of Apateticus Dallas and Podisus Herrich-Schaeffer (Heteroptera:Pentatomidae:Asopinae)

A revision of the genus Notiphila Fallén (Diptera:Ephydridae) from America north of Mexico

A revision of the genus Deraeocoris Kirschbaum (Heteroptera:Miridae) from western America north of Mexico

Description of the plant communities and succession of the Oregon coast grasslands

A systematic study of the genus Phytocoris Fallén (Heteroptera:Miridae) in western North America

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