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Genetic analysis of catechol siderophore by Erwinia carotovora

Creator:: Bull, Carolee Theresa, 1962-
Resource Type:: Dissertation
Full Text:: THE THESIS OF Caro lee Theresa Bull for the degree of Doctor of Philosophy in Botany and Plant

Latent viruses in apple varieties in Oregon nurseries

Creator:: Dimalla, Gerard George
Resource Type:: Masters Thesis
Full Text:: variety to de- termine the amount of virus present in apple varieties and rootstocks being used by

Heat as a factor in germination of seeds of Ceanothus velutinus var. laevigatus T. & G.

Creator:: Gratkowski, H.
Resource Type:: Dissertation
Full Text:: VERSITT in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY June 1962

Interrelationship of wheat cultivar mixtures, stripe rust and yield

Creator:: Akanda, Shamsul I.
Resource Type:: Dissertation
Full Text:: toward the diversity of nature (Browning et al., 1962), in which super races have not been observed to

An improved selective medium for the isolation of Verticillium dahliae Kleb

Creator:: Zehsazian, Hassan
Abstract:: Sodium polypectate (SPP) was added to an ethanol-streptomycin agar (ESA) medium to determine if it would provide a selective substrate for the growth of Verticillium dahliae and for isolation of the fungus from soil and plant tissues in the presence of saprophytic fungi. Sodium polypectate improved greatly the formation and...
Resource Type:: Masters Thesis
Full Text:: susceptible variety. In resistant varieties the inhibition or suppression of polygalacturonase formation

Development of in vitro lily scale budlets as related to virus elimination

Creator:: Ruttum, Joanne C.
Abstract:: Lily hybrids vary in their ability to produce virus-free (VF) bulblets when grown from virus-infected scales in tissue culture. Asiatic hybrids typically produce a higher percentage of in vitro VF scale bulblets than do Lilium longiflorum cultivars. Three hypotheses concerning the cause of this variation are tested on five lily...
Resource Type:: Masters Thesis
Full Text:: varieties resistant to certain viruses (Derks, 1985). Despite recent advances in tissue culture

The biology and pathogenicity of a sheath nematode Hemicycliophora similis Thorne, 1955

Creator:: McKewan, Jeanette Anne
Abstract:: A study, using greenhouse and laboratory experiments, was made of Hemicycliophora similis from Bandon, Oregon to determine: identity and morphometrics, time and development of a life cycle, host plant preferences and optimum environmental conditions for reproduction and pathogenicity. Morphometric investigations revealed discrepancies between the measurements of this nematode species and...
Resource Type:: Masters Thesis
Full Text:: in germination occurred with both radish varieties, rutabaga and turnip. Beet, broccoli, dill and

Presence and pathogenicity of Fusarium and Verticillium species in commercial red radish (Raphanus sativus) seed production in the Willamette Valley of Oregon

Creator:: Bomberger, Rachel A.
Abstract:: Commercial radish seed producers in the Willamette Valley of Oregon have observed a late season wilt in their seed fields. Twenty-two fields were surveyed for wilt in the Willamette Valley during June through August 2012 and 2013. Plants exhibiting wilt symptoms were collected from the fields and examined for vascular...
Resource Type:: Masters Thesis
Full Text:: , obtained from discolored storage roots in 2012, showed that all isolates evaluated have a degree of

Survival and dispersal of Pseus[i.e. d]omonas syringae in a maple nursery and pear orchard

Creator:: Malvick, Dean K.
Resource Type:: Masters Thesis
Full Text:: Survival and dispersal of Pseus[i.e. d]omonas syringae in

Physiologic specialization of stripe rust (Puccinia striiformis West.) in the Pacific Northwest

Creator:: Beaver, Richard Gary, 1939-
Abstract:: The physiologic specialization of nine isolates of stripe rust (Puccinia striiformis West.) collected in the Pacific Northwest was determined. The separation of races was based on the differential susceptibility of the following wheat varieties: Cappelle Desprez, Chinese 166, Dippes Triumph, Druchamp, Etoile de Choisy, Flamingo, Gaines, Golden, Ibis, Leda, Michigan...
Resource Type:: Masters Thesis
Full Text:: identified using these same five commercial varieties. The reaction type of certain wheat variety-race

ScholarsArchive@OSU

Genetic analysis of catechol siderophore by Erwinia carotovora

Latent viruses in apple varieties in Oregon nurseries

Heat as a factor in germination of seeds of Ceanothus velutinus var. laevigatus T. & G.

Interrelationship of wheat cultivar mixtures, stripe rust and yield

An improved selective medium for the isolation of Verticillium dahliae Kleb

Development of in vitro lily scale budlets as related to virus elimination

The biology and pathogenicity of a sheath nematode Hemicycliophora similis Thorne, 1955

Presence and pathogenicity of Fusarium and Verticillium species in commercial red radish (Raphanus sativus) seed production in the Willamette Valley of Oregon

Survival and dispersal of Pseus[i.e. d]omonas syringae in a maple nursery and pear orchard

Physiologic specialization of stripe rust (Puccinia striiformis West.) in the Pacific Northwest

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