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The biogeography of Plantago ovata Forssk. (Plataginaceae)

Creator:: Meyers, Stephen and Liston, Aaron
Abstract:: Plantago ovata Forssk. (Plantaginaceae) is a species that, in North America, inhabits desert and Mediterranean habitats of the southwest United States, northwest Mexico, and the Channel Islands of California and Mexico. In the Eastern Hemisphere, P. ovata inhabits desert regions ranging from the Canary Islands, across northern Africa to India....
Resource Type:: Article
Full Text:: . var. fastigiata (Morris) S. Meyers & A. Liston, comb nov.—Plantago fastigiata Morris, Bull. Tor- rey

Studies on the germination and growth of Anisogramma anomala Peck (Muller) in vitro

Creator:: Lightfoot, Richard (Richard Thomas), 1958-
Abstract:: This study examined the effects of pH, temperature, washing, and post-hydration drying on germination of Anisogramma anomala ascopores. Spores germinate most readily in the temperature range of 5 to 15 degrees C, with an optimal temperature of 10 degrees (1 sd=0.05). Growth was best in the pH range of 5...
Resource Type:: Masters Thesis
Full Text:: of the investigations reported here was modification of Barnett's Oak Wilt Agar (Barnett 1953). OWA

Cytokinin-active ribonucleosides in Phaseolus vulgaris L. transfer ribonucleic acids

Creator:: Edwards, Cynthia Ann
Resource Type:: Masters Thesis
Full Text:: invaluable gifts for which I an very grateful. I am also indebted to Dr. Richard Chapman and Dr. Roy Morris

Global net community production and the putative net heterotrophy of the oligotrophic oceans

Creator:: Westberry, Toby K., Williams, Peter J. le B., and Behrenfeld, Michael J.
Abstract:: Reconciling rates of organic carbon export from the euphotic zone with the consumption of organic material in the dark ocean remains one of the major quantitative uncertainties of the ocean carbon cycle. Euphotic zone net community production (NCP) provides one broad constraint on export flux and potential carbon drawdown. However,...
Resource Type:: Article

The mycorrhizal associations of western hemlock

Creator:: Kropp, Bradley Ray
Abstract:: Two objectives of this research were to identify fungi which are mycorrhizal with western hemlock and to examine the ecology of hemlock mycorrhizal fungi indigenous to outplanting sites. Another objective was to evaluate the effectiveness of mycorrhizal inoculation in improving the performance of outplanted hemlock seedlings. A list of over...
Resource Type:: Dissertation
Full Text:: might also increase transplanting shock on many sites (Marx and Barnett, 1974). Container grown

Nursery, cold storage, and field studies on western conifers inoculated with spores of Pisolithus tinctorius

Creator:: Alvarez, Isabel Fernandez
Abstract:: Inoculations of white fir, Shasta red fir, Douglas fir and ponderosa pine with Pisolithus tinctorius spores when outplanted failed to produce P. tinctorius mycorrhizae at the end of the first growing season. In the third year a few P. tinctorius mycorrhizae were formed on white fir. Inoculations reduced seedling survival...
Resource Type:: Dissertation
Full Text:: ., D. H. Marx, J. P. Barnett, and W. H. Pawuk. 1981. Survival and growth of container-grown and bare

The role of ethylene in ectomycorrhiza formation and Fusarium infection of Douglas fir roots

Creator:: Graham, James Herbert
Abstract:: The ectomycorrhizal fungi Cenococcum geophilum, Hebeloma crustuliniforme and Laccaria laccata produced ethylene in vitro in modified Melin-Norkrans liquid medium only if amended with 2.5 to 10 mM methionine; Pisolithus tinctorius failed to produce ethylene unless the cultures were renewed with fresh methionine-amended medium prior to ethylene assay. An additional 19...
Resource Type:: Dissertation

New Tools for Managing Erysiphe necator: Rapid Sampling Approaches and an Exploration of Grower Opinions and Perspectives towards Collective Action and Information Transfer

Creator:: Lowder, Sarah R.
Abstract:: The scale of pest and disease dispersal is often larger than the scale of individual farms. Therefore, an individual grower’s response to pests and diseases can affect and is affected by their surrounding growing region. Individual growers are also not isolated, and engage in various forms of information gathering, sharing,...
Resource Type:: Dissertation

Occurrence, transmission, and properties of strains of cucumber mosaic virus that are seed-transmitted in Phaseolus vulgaris

Creator:: Davis, Robert Francis
Abstract:: A survey of major bean (Phaseolus vulgaris) breeding programs and seed producing areas in Idaho, Washington, and Oregon was conducted to determine the occurrence of cucumber mosaic virus (CMV), recently reported to be seedborne in beans. Some 259 plants, sampled from breeding lines of diverse germplasm, were found by enzyme-linked...
Resource Type:: Dissertation

The identity, biological and molecular characteristics and serology of carlaviruses infectious to peas in the Pacific Northwest

Creator:: Weber, Kenneth Alan
Resource Type:: Dissertation

ScholarsArchive@OSU

The biogeography of Plantago ovata Forssk. (Plataginaceae)

Studies on the germination and growth of Anisogramma anomala Peck (Muller) in vitro

Cytokinin-active ribonucleosides in Phaseolus vulgaris L. transfer ribonucleic acids

Global net community production and the putative net heterotrophy of the oligotrophic oceans

The mycorrhizal associations of western hemlock

Nursery, cold storage, and field studies on western conifers inoculated with spores of Pisolithus tinctorius

The role of ethylene in ectomycorrhiza formation and Fusarium infection of Douglas fir roots

New Tools for Managing Erysiphe necator: Rapid Sampling Approaches and an Exploration of Grower Opinions and Perspectives towards Collective Action and Information Transfer

Occurrence, transmission, and properties of strains of cucumber mosaic virus that are seed-transmitted in Phaseolus vulgaris

The identity, biological and molecular characteristics and serology of carlaviruses infectious to peas in the Pacific Northwest

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