Index Catalog // ScholarsArchive@OSU

Numerical classification of range vegetation and statistical analysis of its ecology

Creator:: Pyott, William Tucker, 1936-
Abstract:: The purpose of the research was to computerize mathematical procedures for the analysis of range vegetation and environmental data. The specific objectives were as follows: 1. to develop and apply computer techniques to the classification of vegetation in order to provide a phytosociological framework within which to investigate the ecology...
Resource Type:: Dissertation
Full Text:: value of range plant species and species groups, in deciding questions of land use, in planning for

Carbohydrate and photosynthate distribution and nitrogen fixation in beans (Phaseolus vulgaris L.)

Creator:: Waters, Luther
Abstract:: A series of four studies were conducted in Colombia, South America, in the field and the greenhouse to determine the effect of plant competition and mulching on carbohydrate and photosynthate distribution and nitrogen fixation in beans (Phaseolus vulgaris L.). Mulching beans (determinant growth habit) with rice hulls in the lowland...
Resource Type:: Dissertation
Full Text:: population with improved plant growth and yield. Kueneman et al., (61) used a wider range of plant

Description and classification of the forests of the upper Illinois River drainage of Southwestern Oregon

Creator:: Atzet, Thomas
Abstract:: The purpose of this study was to develope a plant community classification within the Siskiyou mountains, a small range within the Klamath geological province well known for its geologic and floristic diversity. Forest land managers have expressed the need for identification of basic Land classes that will aid in the...
Resource Type:: Dissertation
Full Text:: DOCTOR OF PHILOSOPHY in BOTANY (PLANT ECOLOGY) presented on,i2e.4z22. 26 Title: DESCRIPTION AND

Reduction in atrazine toxicity to winter wheat by the growth retardant CCC

Creator:: Kirkland, Kenneth
Resource Type:: Dissertation
Full Text:: photosynthesis and dark respiration were expressed on a per plant basis, however, CCC had no effect. Some

An examination of seedling vigor and the effects of genetic diversity on response to heterosis in tall fescue (Festuca arundinacea Schreb.)

Creator:: Moutray, Jim B., 1939-
Abstract:: Response to heterosis for plant height, anthesis date, panicle number, seed yield, and fall vigor rating was determined in a tall. fescue group selected for diverse morphology, origin, and anthesis date. Parents, single-cross progeny (SX), and first generation selfed progeny (S₁) were included in the study. Each experimental plot consisted...
Resource Type:: Dissertation
Full Text:: -crosses averaged 15. 36, 2. 60, 28.21, 24. 79, and 23. 04 percent above the mid-parent for plant height

Response of Canada milkvetch (Astragalus canadensis var. mortonii (Nutt.) Wats.) to range and forest improvement practices in Northeastern Oregon

Creator:: Wood, Benjamin William
Abstract:: The response of Canada milkvetch (Astragalus canadensis var. mortonii) to range and forest improvement practices was studied on a stand of mixed-coniferous forest which was clear -cut and burned in 1963 and 1964, respectively. The field studies were conducted on the Hall Ranch of the Eastern Oregon Experiment Station during...
Resource Type:: Dissertation
Full Text:: Analyses Plant Vigor Yields 1 1 1 5 5 9 11 11 11 15 16 19 26 28 29 31 31 31

Studies of northern root-knot nematode (Meloidogyne hapla, Chitwood 1949) biotypes and some factors associated with their biology and pathogenicity

Creator:: Ogbuji, Rufus Omez, 1941-
Abstract:: Root-knot nematodes were among the earliest plant-parasitic nematodes to be recognized. Before 1949, they were considered as the one species Heterodera marioni (Cornu 1887) Goodey 1932. In 1949 Chitwood completed a taxonomic study of the root-knot nematodes and placed them in a separate genus Meloidogyne. Economically they are one of...
Resource Type:: Dissertation
Full Text:: populations of Meloidogyne hapla used in biotype study 15 2 Sources of plant materials 18 3 Reactions of

The location, composition, and structure of old-growth forests of the Oregon coast range

Creator:: Juday, Glenn Patrick
Resource Type:: Dissertation
Full Text:: leeward slope 15 2 Location of 15 x 25 M sampling plots of old- growth forest in the Coast Range 29 3

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:: in the Botany Department pre cñ on April 15, 1977 Title: A REVISION OF jUNCUS SUBGENUS CENUINI

Cytokinin production by Agrobacterium tumefaciens

Creator:: Kaiss-Chapman, Richard Wilkinson
Abstract:: Certain plant-associated prokaryotes such as Corynebacteriurn fascians and Agrobacterium tumefaciens are known to produce substantial levels of cytokinins. In view of the fragmentary and presumptive evidence available on the quantitative and qualitative levels of cytokinins produced by A. tumefaciens, it was decided to conduct a study of the cytokinins produced...
Resource Type:: Dissertation
Full Text:: Botany and Plant Pathology presented on July 15, 1977 Title: CYTOKININ PRODUCTION BY AGROBACTERIUM

ScholarsArchive@OSU

Numerical classification of range vegetation and statistical analysis of its ecology

Carbohydrate and photosynthate distribution and nitrogen fixation in beans (Phaseolus vulgaris L.)

Description and classification of the forests of the upper Illinois River drainage of Southwestern Oregon

Reduction in atrazine toxicity to winter wheat by the growth retardant CCC

An examination of seedling vigor and the effects of genetic diversity on response to heterosis in tall fescue (Festuca arundinacea Schreb.)

Response of Canada milkvetch (Astragalus canadensis var. mortonii (Nutt.) Wats.) to range and forest improvement practices in Northeastern Oregon

Studies of northern root-knot nematode (Meloidogyne hapla, Chitwood 1949) biotypes and some factors associated with their biology and pathogenicity

The location, composition, and structure of old-growth forests of the Oregon coast range

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

Cytokinin production by Agrobacterium tumefaciens

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