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The genetic analyses of neck-rot (Botrytis allii Munn) resistance, pungency and soluble solids content of onion (Allium cepa L.)

Creator:: Lin, Mau-Wei
Resource Type:: Dissertation
Full Text:: Neck-rot (Botrytis allii) Resistance, Pungency and Soluble Solids Content of Onion (Allium cepa

The etiology of bacterial soft rot of onions and identification of the causal organisms

Creator:: Irwin, Roger Deane
Abstract:: Observations of bacterial soft rot of onions in the Lake Labish area in the Willamette Valley of western Oregon showed that two distinct symptom types occur during the growing season. The most prevalent symptom type appears in infected plants as a wilting and chlorosis of two or more lower leaves...
Resource Type:: Dissertation
Full Text:: bacterial soft rot. Three isolates of seventeen unknown isolates capable of decaying inoculated onion

A compound from onion roots inhibitory to Pyrenochaeta terrestris

Creator:: Pfleger, Francis Louis
Abstract:: In vitro tests showed mycelial growth of Pyrenochaeta terrestris was inhibited by root and bulb extracts from the pink root resistant onion cultivar Nebuka, but not by extracts from the susceptible Southport White Globe. The active principle was shown to be fungistatic rather than fungicidal. It is present in both...
Resource Type:: Dissertation
Full Text:: A compound from onion roots inhibitory to Pyrenochaeta

The biology of the onion maggot, Hylemya antiqua (Meigen), under field and greenhouse conditions

Creator:: Workman, Ralph Burns
Resource Type:: Dissertation
Full Text:: area near Salem, which Is the major onion growing region in western Oregon (34, p.140). Control

Factors influencing development and control of root rot of bean, Phaseolus vulgaris L., in the Willamette Valley of Oregon

Creator:: Wiedman, Harold Willis
Resource Type:: Dissertation
Full Text:: Factors influencing development and control of root rot of

Resistance mechanisms against onion pink root (Pyrenochaeta terrestris), bioassay of inoculum potential in soil and chemical control

Creator:: Siemer, Sidney R.
Resource Type:: Dissertation
Full Text:: 22. Treatments used to evaluate carry -over effect of Telone and Vorlex for control of onion pink

Onion (Allium cepa L.) cultivar tolerance to bromoxynil

Creator:: Madrid, Modesto T.
Abstract:: In onions, sensitive cultivars diminish the usefulness of the selective herbicide bromoxynil. Tolerant cultivars can overcome this limitation. A better understanding of the biochemistry, physiology and genetics of bromoxynil tolerance could lead to improved weed control programs in onions. Onion cultivar response to bromoxynil was studied under greenhouse conditions. Tolerant...
Resource Type:: Dissertation
Full Text:: and genetics of bromoxynil tolerance could lead to improved weed control programs in onions. Onion

Genetics of sexuality and population genetics of Phellinus weirii

Creator:: Angwin, Peter A.
Abstract:: Phellinus weirii (Murr.) Gilbertson, cause of laminated root and butt rot, is a heterothallic basidiomycete lacking clamp connections. Two biological species groups of the fungus have been hypothesized, the Douglas-fir and cedar-types, on the basis of physiological, morphological and epidemiological differences. Single-spore and vegetative isolates differ in cultural morphology, nuclear...
Resource Type:: Dissertation
Full Text:: 1979). Until the first report of laminated root rot on Douglas-fir by Mounce, Bier and Nobles in 1940

Factors affecting development of iris rhizome rot caused by Botrytis convoluta Whetzel and Drayton

Creator:: Maas, J. L.
Abstract:: Abundant conidial and sclerotial production occurs on iris plants infected with Botrytis convoluta Whetzel and Drayton during the cool moist months of the year. Experiments were designed to study the survival and inoculum potential of conidia and sclerotia. Basic nutritional requirements of the fungus in culture were also studied. Results...
Resource Type:: Dissertation
Full Text:: neck rot of onion organism (Botryotinia allii) were able to remain viable after being exposed to

Inheritance of resistance to Fusarium root rot in Phaseolus vulgaris L., and Phaseolus coccineus L.

Creator:: Azzam, Hassan Ahmed
Abstract:: Progenies of two bean crosses were studied for inheritance of resistance to dry root rot caused by Fusarium solani f. phaseoli. O.S.C. 22 (P. vulgaris) was used in both crosses as the susceptible parent. A Mexican line (P. vulgaris) and a line 2014 of the runner bean (P. coccineus) were...
Resource Type:: Dissertation
Full Text:: dry root rot of bean as an effective means of control. They indicated the possibility of finding

ScholarsArchive@OSU

The genetic analyses of neck-rot (Botrytis allii Munn) resistance, pungency and soluble solids content of onion (Allium cepa L.)

The etiology of bacterial soft rot of onions and identification of the causal organisms

A compound from onion roots inhibitory to Pyrenochaeta terrestris

The biology of the onion maggot, Hylemya antiqua (Meigen), under field and greenhouse conditions

Factors influencing development and control of root rot of bean, Phaseolus vulgaris L., in the Willamette Valley of Oregon

Resistance mechanisms against onion pink root (Pyrenochaeta terrestris), bioassay of inoculum potential in soil and chemical control

Onion (Allium cepa L.) cultivar tolerance to bromoxynil

Genetics of sexuality and population genetics of Phellinus weirii

Factors affecting development of iris rhizome rot caused by Botrytis convoluta Whetzel and Drayton

Inheritance of resistance to Fusarium root rot in Phaseolus vulgaris L., and Phaseolus coccineus L.

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