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Filtering by: Committee Member Rohovec, John

Symbiotic characteristics of Rhizobium leguminosarum bv. trifolii recovered from nodules of field-grown Trifolium subterraneum L.

Creator:

Wanjagi, Francis Ndung'u

Abstract:

In a series of greenhouse experiments, isolates representing serotypically distinct subpopulations of Rhizobium leguminosarum bv. trifolii recovered from root nodules of field-grown subclover Trifolium subterraneum cv. "Nangeela"), were evaluated for their symbiotic effectiveness potential, their effect on regrowth potential of subclover, and for their competitive abilities to form nodules. Isolates...

Resource Type:

Masters Thesis

Full Text:

compilation of this thesis. Thanks also to Drs. Neil Christensen, John Rohovec, and Barry Sherr for
The fishery biology of the weathervane scallop [Pecten (Patinopecten) caurinus Gould, 1850] in Oregon coastal waters

Creator:

Nunez, Jose D.

Abstract:

Samples of weathervane scallops taken on Oregon Department of Fish and Wildlife cruises off Oregon waters during 1981-1982 were analyzed for a comparative growth study. No evidence of internal growth marks were found in the shell structure when analyzed by the acetate peel technique. Internal growth lines formed in the...

Resource Type:

Dissertation

Full Text:

wish to thank my committee members, Dr. Richard Tubb, Dr. Frederick Smith, Dr. John Rohovec, and Dr