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Bionomics of the hop cyst nematode, Heterodera humuli Filipjev, 1934 (Nematoda : Heteroderidae)

Creator:: Sen, Arun Kumar
Abstract:: The hop cyst nematode, Heterodera humuli Filipjev, 1934 was first reported from Europe in 1894, however, very little is known with respect to the biology and economic importance of this pest. Abundant material from Oregon hop yards provided an excellent opportunity to add additional details concerning the bionomics of this...
Resource Type:: Dissertation
Full Text:: ) Abstract approved: Dr. Harold J. Jensen The hop cyst nematode, Heterodera humuli Filipjev, 1934 was

Investigations into the physiology of nitrogen fixation : Part I. Nickel metabolism of plants and bacteria : Part II. Peroxide scavenging in soybean root nodules

Creator:: Dalton, David Andrews
Abstract:: PART I. The concentration of nickel in some soils may be insufficient to meet the requirements of enzymes such as urease in soybeans and hydrogenase in Rhizobium. Nickel availability in soils was examined by measuring microbial urease activity in soils which were treated with glucose and urea. Supplemental nickel was...
Resource Type:: Dissertation
Full Text:: Nodules Abstract approved: v (Harold J. Evans) Redacted for privacy PART I. The concentration of

A revision of Juncus subgenus genuini (Juncaceae) in the Pacific states

Creator:: Lint, Harold LeRoy
Abstract:: A study was made of the subgenus Genuini of the genus Juncus in the Pacific States, California, Oregon and Washington. Extensive morphological comparisons, geographical distributions, habitat differences and observations of apparent presence or absence of natural hybrids provided the major data sources. Cytological studies were made, but were inconclusive. Eleven...
Resource Type:: Dissertation
Full Text:: Pacific states AN ABSTRACT OF THE THESIS OF Harold LeRoy Lint for the degree cf Doctor of Philosophy

History and trends of graphic arts education

Creator:: Coberly, Zoral Harold
Resource Type:: Dissertation
Full Text:: ANfl TBFNDS OF GRAPHIC ARTS EDUC;.TION r¿ORA HAROLD COBRLY A THESIS ubniitted to OREGON STATE

An analysis of selected industrial training programs

Creator:: Miller, Harold J.
Resource Type:: Dissertation
Full Text:: ANALYSIS OF SELECTED INDUSTRIAL TRA.INING PROGRAMS by HAROLD J MILLER A THESIS s,ubmitted to

A history of Indian education in the United States

Creator:: Morris, Harold White
Resource Type:: Dissertation
Full Text:: HISTORY OF INDIAN EDUCATION IN THE UNITED STATES HAROLD WHITE MORRIS A THESIS submitted to OREGON

A history of the department of defense dependents schools, Okinawa, Japan, 1946-1978

Creator:: Brown, Harold Clifford
Abstract:: The focus of this study was to identify persistent problems in the developmental history of the American Department of Defense dependents schools in Okinawa, Japan. The period of time covered was from 1946 through 1978. The study includes historical descriptions of curriculum development, obtaining and maintaining school facilities, and the...
Resource Type:: Dissertation
Full Text:: schools, Okinawa, Japan, 1946-1978 AN ABSTRACT OF THE THESIS OF Harold Clifford Brown for the degree of

Physiological ecology and structure of benthic communities in a woodland stream

Creator:: Reese, Weldon Harold
Abstract:: This thesis reports a portion of a general ecological study of a stream under conditions of controlled flow and low levels of organic enrichment. It is concerned with the effects of experimental variations of light intensity and concentration of soluble organic enrichment imposed on seasonal variations of temperature and total...
Resource Type:: Dissertation
Full Text:: in a woodland stream AN ABSTRACT OF THE THESIS OF Weldon Harold Reese for the Ph. D in Botany

Role of the health educator in guidance services

Creator:: Petersen, Harold Ernest
Resource Type:: Dissertation
Full Text:: (IF ThE HEALTH EDUCATOR IN GUIDANCE S:LRVICES bY HAROLD W.NEST PETIZSEN A THESIS submitted to

Identification of the role of the physician's assistant in Oregon utilizing the Delphi technique

Creator:: Travis, Harold Richard
Abstract:: This study, conducted with the cooperation of the Oregon Comprehensive Health Planning Agency, Salem, had a threefold purpose: (1) to identify the role of the physician's assistant (PA) in Oregon, (2) to provide substantive data for recommendations regarding changes in PA licensure, and (3) to provide information which may be...
Resource Type:: Dissertation
Full Text:: in Oregon utilizing the Delphi technique AN ABSTRACT OF THE THESIS OF HAROLD RICHARD TRAVIS for

ScholarsArchive@OSU

Bionomics of the hop cyst nematode, Heterodera humuli Filipjev, 1934 (Nematoda : Heteroderidae)

Investigations into the physiology of nitrogen fixation : Part I. Nickel metabolism of plants and bacteria : Part II. Peroxide scavenging in soybean root nodules

A revision of Juncus subgenus genuini (Juncaceae) in the Pacific states

History and trends of graphic arts education

An analysis of selected industrial training programs

A history of Indian education in the United States

A history of the department of defense dependents schools, Okinawa, Japan, 1946-1978

Physiological ecology and structure of benthic communities in a woodland stream

Role of the health educator in guidance services

Identification of the role of the physician's assistant in Oregon utilizing the Delphi technique

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