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The influence of host nutrition on the development of xiphinema americanum

Creator:: Nigh, Edward L.
Resource Type:: Dissertation
Full Text:: were found than were found in P or Ca deficient treatments. Larval populations did not differ among

The interactions of Pratylenchus penetrans with host plants, Longidorus elongatus and Verticillium dahliae

Creator:: Yorston, John McKay
Abstract:: The root-lesion nematode, Pratylenchus penetrans (Cobb 1917). Filipjev and Shuurmans Stekhoven, 1941, is widely distributed throughout Oregon and other temperate zones of the world. Economically it is probably the most important plant parasitic nematode in Oregon because of its abundance, wide host range of economic plants and interactions with other...
Resource Type:: Dissertation

Transmission of plant pathogenic bacteria and a bacteriophage of Agrobacterium tumefaciens (Smith and Townsend) Conn by a saprozoic nematode, Diplogaster lheriteiri Maupas

Creator:: Chantanao, Aroon
Abstract:: A saprozoic nematode, Diplogaster lheriteiri Maupas 1919, was studied to determine its relationship to the plant pathogenic bacteria, Agrobacterium tumefaciens (Smith and Townsend) Conn., Erwinia amylovora (Burrill) Winslow et al., Erwinia carotovora (Jones) Holland, Pseudomonas phaseolicola (Burk. ) Dows., Xanthomonas campestris (Pam. ) Dows. and to a phage of A....
Resource Type:: Dissertation
Full Text:: . tumefaciens, E. amylovora, E. carotovora, P. phaseolicola and a phage of A. tumefaciens. It ap- peared that

Chemical features of the Columbia River plume off Oregon

Creator:: Cissell, Milton Charles
Abstract:: An intensive chemical investigation, that includes the determinations of salinity, oxygen, nutrients, pH, alkalinity, and total carbon dioxide of the Columbia River plume off the Oregon coast in July 1967 shows the following unique features: 1. Along the axis of the river plume both the salinity minimum and temperature maximum...
Resource Type:: Masters Thesis
Full Text:: FEATURES OF THE COLUMBIA BIVE PLUME OFF OREGON Abstract approved: P. Kilho Park An intensive chemical

Taxonomy of marine nematodes occurring along Pacific Northwest coasts

Creator:: Murphy, Donald Guy
Resource Type:: Dissertation
Full Text:: coasts TAXON(J4Y OF MARINE NEMATODBS OC(lJRRING ALONG P ACIPIC NORTHWEST roASTS by OONALD GUY

The use of certain indicator plants for a rapid detection of root knot nematodes in soil samples

Creator:: Chantanao, Aroon
Resource Type:: Masters Thesis
Full Text:: plants were found to be attacked by various species of this genus (l, p. :.). Besides causing galls

Elastically supported beam columns

Creator:: Ching, Delwin Pow Kong
Resource Type:: Masters Thesis
Full Text:: critical load derived by Green, Winter and 2 3 1Cuykendall is given as P cr = rr;I+ ~L when the column

Matrix analysis of structures with semi-rigid connection

Creator:: Grant, Joseph Edward
Abstract:: This thesis presents a matrix analysis of structures with semirigid connections. The stiffness factor of a connection has been assumed to be a constant as represented by the initial relationship of moment versus rotation. Three cases are considered: Case I - structures with semirigid connections, column width and beam depth...
Resource Type:: Masters Thesis
Full Text:: Enginee:r- ing faculty at Oregon State University and in particular to Dr " Harold I " I-,aursen for

Enzymatic and respiratory studies on the role of cobalt in legumes

Creator:: De Hertogh, August
Resource Type:: Dissertation
Full Text:: his sincere appreciation to Dr. Harold J. Evans for suggesting the problem, and for his interest

Stability of elastically restrained framed structures by matrix analysis

Creator:: Albertson, Oran Lester
Abstract:: It has been undertaken here to use the matrix method of structural analysis for the determination of the stability of elastically restrained, simple portal frames. This involves the formulation of the stiffness matrix of the structure in terms of the axial force in the members. The stability criterion, when applied...
Resource Type:: Masters Thesis
Full Text:: failure (2, p. 251-255, 23, p. 66, 1 49). It is undertaken here to use a method applicable to a large

ScholarsArchive@OSU

The influence of host nutrition on the development of xiphinema americanum

The interactions of Pratylenchus penetrans with host plants, Longidorus elongatus and Verticillium dahliae

Transmission of plant pathogenic bacteria and a bacteriophage of Agrobacterium tumefaciens (Smith and Townsend) Conn by a saprozoic nematode, Diplogaster lheriteiri Maupas

Chemical features of the Columbia River plume off Oregon

Taxonomy of marine nematodes occurring along Pacific Northwest coasts

The use of certain indicator plants for a rapid detection of root knot nematodes in soil samples

Elastically supported beam columns

Matrix analysis of structures with semi-rigid connection

Enzymatic and respiratory studies on the role of cobalt in legumes

Stability of elastically restrained framed structures by matrix analysis

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