PSU Department of Plant Pathology Theses
Arranged by Author's Last Name

A - B - C - D - E - F - G - H - I - J - K - L - M

N - O - P - Q - R - S - T - U - V - W - X - Y - Z

A

Adamowicz, Aleksander. (1991). Temporal changes in the nutrition of Norway spruce [Picea abies (L.) Karst.] plantations and response to fertilization. M.S. thesis; John M. Skelly, Thesis Advisor.

Allison, William Hugh. (1957). An investigation of antibiotics as a control of bacterial blotch on the cultivated mushroom. Master's thesis; Leon R. Kneebone, Thesis Advisor.

Allison, William Hugh. (1963). Influence of compost pH and of casing soil pH on mushroom production. Doctoral thesis; Dr. Leon R. Kneebone, Thesis Advisor.

Anderson, Francis Anthony. (1956). Effect of temperature on spore survival of fungus pathogens and competitors of the cultivate mushroom, Agaricus campestris (L. ex. Fries). M.S. thesis; Leon R. Kneebone, Thesis Advisor.

Anderson, Merrilee G. (2002). Etiology and epidemiology of Trichoderma harzianum Rifai in association with the cultivated mushroom Agaricus bisporus (Lange) Imbach. Doctoral thesis; David M. Beyer and Paul J. Wuest, Thesis Co-advisors.

Anzola, David Raul. (1980). An evaluation of resistance in sweet corn to maize dwarf mosaic disease. M.S. thesis; C. Peter Romaine, Thesis Advisor.

Arny, Carol Jean. (1984). Effects of simulated acid rain treatments on ethylene production by potato, radish and soybean leaf tissue. M.S. thesis; Eva Pell, Thesis Advisor.

Arrillaga, Jaime Rafael Guiscafre. (1934). The nature of the inhibition between parasitic fungi. M.S. thesis; H. W. Thurston, Jr., Thesis Advisor.

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B

Bair, Wendy. (1985). Extent of gray leaf spot in Pennsylvania and variability present in the pathogen, Cercospora zeae-maydis. M.S. thesis; John E. Ayers, Thesis Advisor.

Bangson, John Stuver. (1940). Studies on X-ray treatment of Phlox. Doctoral thesis; J. P. Kelly, Thesis Advisor.

Barclay, Gerald B. (1985). The effect of four plant growth regulators on yield and size of the cultivated mushroom, Agaricus bisporus. M.S. thesis; Lee C. Schisler, Thesis Advisor.

Beachley, Kenneth Gumbert. (1937). Soil disinfection with the Hypressure JENNY. M.S. thesis; H. W. Thurston, Jr., Thesis Advisor.

Berkett, Lorraine. (1985). Apple powdery mildew: Relation of time of application to efficacy of a sterol-inhibiting fungicide, the effect of late season secondary mildew on apical bud survival, and an evaluation of a management tactic against late season secondary mildew. Ph.D. thesis.
Note: Thesis missing from Hildebrandt Library collection. Pattee/Paterno Library owns a print copy of the thesis (Call number: Thesis 1985dBerke,LP) and a microfilm copy (Call number: Microfilm Cd5177).

Beyer, David Meigs. (1978). Etiology of the Vern Astley disease of the cultivated mushroom. M.S. thesis; Paul J. Wuest, Thesis Advisor.

Beyer, David Meigs. (1996). Studies in the mineral element requirements and changes in mushroom compost that influence later break yield of Agaricus bisporus (Lange) imbach. Doctoral thesis; Pau l J. Wuest, Thesis Advisor.

Biggs, Alan Richard. (1978). The relative susceptibility of ten tree seedlings to sulfur dioxide with emphasis on the sulfur content, stomatal conductance and pollutant accumulation of several birch species. M.S. thesis; Donald D. Davis, Thesis Advisor.

Biggs, Alan Richard. (1982). On Cytospora chrysosperma (Pers.) Fr. canker of hybrid poplar: Interaction with sulfur dioxide, importance of bark moisture, and pathological anatomy. Doctoral thesis; Donald D. Davis, Thesis Advisor.

Blanco, Michael Harold. (1973). Studies on the survival of races O and T of Helminthosporium maydis on a corn hybrid in normal cytoplasm. M.S. thesis; Richard R. Nelson, Thesis Advisor.

Bonifacino, Steven F. (1980). A Compendium of major Sporacarpic diseases of the commercial mushroom Agaricus bisporus (Lange) Imbach. M.A. thesis; Paul Wuest, Thesis Advisor.

Bookbinder, Mark Gary. (1978). A Disease interaction involving Uromyces phaseoli and Meloidogyne incognita on Phaseolus vulgaris. M.S. thesis; JAmes R. Bloom, Thesis Advisor.

Bookbinder, Mark Gary. (1980). The interactions of selected soil-borne nematodes and pseudomonads pathogenic on Medicago sativa L., cv. Saranac AR. Doctoral thesis; James R. Bloom, Thesis Advisor.

Bowden, Christine G. (1991). Linkage relationships of allozyme encoding loci, breeding and selection in shiitake, Lentinula edodes. Doctoral thesis; Daniel J. Royse, Thesis Advisor.

Bowman, Pamela M. (1967). The effect of Meloidogyne incognita on the resistance of tomato varieties to Fusarium wilt. Master's thesis; James R. Bloom, Thesis Advisor.

Brantley, Elizabeth Ann. (2001). Ecology, genetic variation, and biological control of the artillery fungus (Sphaerobolus stellatus Tode:Pers.). Doctoral thesis; Donald D. Davis, Thesis Advisor.

Braverman, Samuel William. (1954). Studies on Scolecotrichum graminis Fckl. Master's thesis; Charles L. Fergus, Thesis Advisor.

Braverman, Samuel William. (1957). The physiology and pathogenicity of Helminthosporium species on forage crops. Doctoral thesis; Charles L. Fergus, Thesis Adviser.

Breth, Deborah I. (1986). The effect of the lesser peachtree borer on the expansion of Cytospora canker on peach trees. M.S. thesis; James W. Travis and Larry A. Hull, Thesis Co-advisors.

Broscious, Steven C. (1982). The effects of winter wheat row width, seeding depth, seeding rate, and spring nitrogen fertilization level on the severity of infection by Erysiphe graminis f. sp. tritici, Septoria spp. and Helminthosporium sativum in Pennsylvania. M.S. thesis; James A. Frank, Thesis Advisor.

Brown, Aaron D. (2007). Quantitative analysis of bacterial blotch disease symptom development on Agaricus bisporus. M.S. thesis, David M. Beyer, Thesis Advisor.

Brown, Guy Earl. (1971). Pathogenicity of five Curvularia species on five turfgrass cultivars. Master's thesis; Herbert Cole, Jr. and Richard R. Nelson, Thesis Co-advisors.

Brown, Thomas Shipley, Jr. (1970). Germination of basidiospores of Fomes applanatus. Master's thesis; William Merrill, Jr., Thesis Advisor.

Bunyard, Britt A. (1995). Phylogeny of Agaricus bisporus inferred from enzymatically amplified ribosomal DNA. Doctoral thesis; Daniel J. Royse, Thesis Advisor.

Burgoon, Janet Smiley. (1980). Host range of the formae speciales of Fusarium oxysporum causing wilt of chrysanthemum. M.S. thesis; T. A. Toussoun, Thesis Advisor.

Burkhart, Christopher Ryan. (2005). Genetic resistance to Fusarium dry rot in a diploid hybrid, Solanum phureja - S. Stenotomum, populations, and the relative virulence of various Fusarium species isolates on potato. M.S. thesis; Barbara J. Christ, Thesis Advisor.

Burpee, Leon Louis. (1979). The biology of binucleate Rhizoctonia solani-like fungi. Doctoral thesis; Herbert Cole, Jr., Thesis Advisor.

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C

Câmara, Marcos P. S. (1999). Systematics of Ophiosphaerella, Paraphaeosphaeria and Phaeosphaeria: A molecular and mophological approach. Doctoral thesis; Mary E. Palm nad Elwin L. Stewart, Thesis Co-advisors.

Campbell, Charles Lee. (1979). Distribution and progression of hypocotyl rot of snapbean. Doctoral thesis; Stanley P. Pennypacker, Thesis Advisor.

Campbell, William Andrew. (1935). The cultural characteristics of the species of Fomes. Doctoral thesis.

Cappellini, Raymond Adolph. (1952). A comparative cultural study on graminicolous species of Helminthosporium. M.S. thesis.

Carroll, Alban David, Jr. (1973). Improving post-composting mushroom supplements for use at spawning. Master's thesis; Lee C. Schisler, Thesis Advisor.

Carroll, Robert Buck. (1971). Studies on Corynebacterium insidiosum and bacterial wilt of alfalfa. Doctoral thesis; Felix L. Lukezic, Thesis Advisor.

Castaño-Zapata, Jairo. (1981). Identification and testing of rate-limiting resistance of rice (Oryza sativa L.) to blast disease caused by Pyricularia oryzae Cav. Doctoral thesis; David R. MacKenzie and Richard R. Nelson, Thesis Co-advisors.

Castetter, Edward Franklin. (1921). Some studies on the potato wart fungus, Chrysophlyctis endobiotica. Master's thesis.

Castor, Loral Leslie. (1975). Epidemiological study of yellow leaf blight of corn (Zea mays L.). Master's thesis; John E. Ayers and Richard R. Nelson, Thesis Co-advisors.

Catlin, Nora Jean. (1999). Sources of inoculum of Trichoderma green mold of the cultivated mushroom Agaricus bisporus Lange (Imbach) caused by Trichoderma harzianum rafai. M.S. thesis; Paul J. Wuest, Thesis Advisor.

Chamberlain, Holly L. (2000). The Genus Podostroma P. Karst. (Hypocreales). Master's thesis. Note: Thesis missing from Hildebrandt Library collection. Pattee/Paterno Library owns a print copy of the thesis (Call number: Thesis 2000mChamb,HL) as well as a microfilm copy.

Chandler, Webser Allen. (1955). Correction of field plot data for positional effects with application to the study of fungicides. Doctoral thesis; H. W. Thurston, Jr., Thesis Advisor.

Chaverri, Priscila. (2003). Studies on the systematics of Hypocrea-Trichoderma (Hypocreaceae, Hypocreales, Ascomycota): Species with green ascospores.
Doctoral thesis. Note: Thesis missing from Hildebrandt Library collection. Pattee/Paterno Library owns a print copy of the thesis (Call number: Thesis 2003dChave,P) as well as a microfilm copy (Call number: Cd14239).

Chen, Shu Yi. (1940). Control of damping-off incident to transplanting from sand culture. M.S. thesis; W. S. Beach, Thesis Advisor.

Chen, Xi. (1998). Trichoderma green mold disease on Agaricus bisporus: Evidence for the introduction of a new genotype of the pathogen. Doctoral thesis; C. Peter Romaine, Thesis Advisor.
Note: PDF version of the dissertation is also available to the Penn State University community via the UMI ProQuest Digital Dissertations database.

Clarke, Gregory Glenn. (1988). Canopy density and spray deposition in apple trees. M.S. thesis; Kenneth D. Hickey and James W. Travis, Thesis Co-advisors.

Clarke, Gregory. (1992). Development of an expert system for fire blight management in Pennsylvania and the role of aphids and copper in blight management. Doctoral thesis.
Note: Thesis missing from Hildebrandt Library collection. Pattee/Paterno Library owns print and microfilm copies of the thesis: Thesis 1992dClark,GG (print call number); Cd8463 (microfilm call number). A PDF version of the dissertation is also available to the Penn State University community via the UMI ProQuest Digital Dissertations database.

Cobb, Fields W. (1963). Oak wilt in chestnut oak: Its significance, symptomatology, and factors affecting its occurrence. Doctoral thesis; Charles L. Fergus, Thesis Advisor.

Cole, Herbert, Jr. (1955). Factors influencing spore germination and growth of the oak wilt fungus. M.S. thesis; Charles L. Fergus, Thesis Advisor.

Cole, Herbert, Jr. (1957). The etiology and epiphytology of northern anthracnose on red clover. Doctoral thesis, Clifford C. Wernham and Houston B. Couch, Thesis Co-advisors.

Collopy, Patrick D. (2000). Molecular phylogenetic analysis of populations of Verticillium fungicola on the cultivated button mushroom, Agaricus bisporus. M.S. thesis; Daniel J. Royse and C. Peter Romaine, Thesis Co-advisors.

Collopy, Patrick D. (2004). Characterization of phytase activity from cultivated edible mushrooms and mushroom substrates. Doctoral thesis; Daniel J. Royse, Thesis Advisor.
Note: PDF version of the dissertation is also available to the Penn State University community via the UMI ProQuest Digital Dissertations database.

Costanzo, Stefano. (2003). Characterization and mapping of QTLs conferring resistance to late blight in potato. Doctoral thesis; Barbara J. Christ, Thesis Advisor.

Cunfer, Barry M. (1967). Studies on the biology of Myrothecium roridum and M. verrucaria on red clover M.S. thesis; Felix L. Lukezic, Thesis Advisor.

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D

Dalmacio, Samuel Cisnero. (1976). Genetic studies of pathogenicity type, virulence and sexual reproduction in Cochliobolus carbonum. Doctoral thesis; R. R. Nelson, Thesis Advisor.

Daughtry, Stephanie M. (1997). The Competitive, nonobligate strain of Pseudomonas and its ability to control gray mold on Pelargonium. M.S. thesis; Gary W. Moorman and Felix Lukezic, Thesis Co-advisors.

Davenport, Fiona E. (1990). Mycoflora of Agaricus bisporus sporophores from retail outlets and farms supplying retail outlets..M.S. thesis; Paul J. Wuest, Thesis Advisor.

Davids, John Alan. (1979). The influence of soil moisture on macroscopic sulfur dioxide injury to pinto bean foliage. M.S. thesis; Donald D. Davis, Thesis Advisor.

Davis, Alice Ethel. (1979). An evaluation of leaf trap and soil dilution and plating techniques as detectors of Cylindrocladium scoparium and Rhizoctonia Spp. in soils. M.S. thesis; Kenneth D. Hickey, Thesis Advisor. .

Davis, Donald D. (1970). The influence of ozone on conifers. Doctoral thesis; Francis A. Wood, Thesis Advisor.

DeLozier, Kathy Diane Mayo. (1980). The effect of ambient temperature and relative humidity on Botrytis cinerea Pers. on Pelargonium x hortorum Bailey. M.S. thesis; Stanley P. Pennypacker, Thesis Advisor. .

Delserone, Leslie M. (1985). Fall infection by Pyrenophora teres: Its effect on spring net blotch epidemics and on the winter survival of barley, alone or in combination with barley yellow dwarf virus. M.S. thesis; James A. Frank, Thesis Advisor.

Demers, Anissa M. (2005). Biological control of Canada thistle using the rust Puccinia punctiformis. Master's thesis.

Demski, James W. (1966). Studies on spread, possible herbaceous plant reservoirs and serological relationships of some virus isolates from sour cherry (Prunus cerasus L.). Doctoral thesis; John S. Boyle, Thesis Advisor.

Diehle, Douglas A. (1985). Biological efficiency of selected lines and the effect of substrate heat treatment on the biological efficiency of Lentinus edodes (Berk.) Sing. M.S. thesis; Daniel J. Royse, Thesis Advisor.

Dillon, Justin Michael. (2004). Exploring the role of the type III secreted DspA protein from Erwinia amylovora in disease and the effect of silicon supplementation on the foliar pathogen Pseudomonas syringae. M.S. thesis; Timothy W. McNellis, Thesis Advisor.

Donnan, Alvan. (1974). Histopathology of Azalea (Rhododendron obtusum (Lindl.) Planch.) leaves infected with Cylindrocladium scoparium Morgan and Celonectria theae Petch. Doctoral thesis. Note: Thesis missing from Hildebrandt Library collection. Pattee/Paterno Library owns print and microfilm copies of the thesis: Thesis 1974dDonna,A (print call number); Cd875 (microfilm call number).

Dorworth, Charles E. (1963). The effect of nutrition, soil moisture, and soil temperature on the proneness of Dianthus caryophyllus to attack by Fusarium roseum. Master's thesis; James Tammen, Thesis Advisor.

Douglas, Sharon Mary. (1982). Primary penetration events in relation to adult plant resistance of oats to Erysiphe graminis f. sp. avenae. Doctoral thesis; Robert T. Sherwood and Felix L. Lukezic, Thesis Co-advisors.

Downing, Anne Moorhouse. (1929). Studies on the development of Sordaria fimiseda. Master's thesis.

Dreisbach, Tina. (1989). A Needle blight of Pinus strobus in Acadia National Park: Associated fungi and pathological anatomy. Master's thesis.
Note: Thesis missing from Hildebrandt Library collection. Pattee/Paterno Library owns a microfiche copy of the thesis, call number: Micro 4 PSUm1989Dreis,TA 1 fiche).

Drummond, David Borthwick. (1972). The effect of peroxyacetyl nitrate on petunia (Petunia hybrida Vilm.). Doctoral thesis; Francis A. Wood, Thesis Advisor.

Duerr, Steven. (1992). A Comparison of an Enzyme-linked Immunosorbent Assay (ELISA) and an apple cotyledon bioassay for the detection of Phytophthora cactorum in Pennsylvania apple orchard soils. Master's thesis.
Note: Thesis missing from Hildebrandt Library collection. Pattee/Paterno Library owns print and microfilm copies of the thesis: Thesis 1992dClark,GG (print call number); Cd8463 (microfilm call number).

Dufault, Nicholas S. (2004). The Influence of environmental variables on Gibberella zeae perithecia production and development. M.S. thesis; Erick D. DeWolf, Thesis Advisor.

Dunkle, Alice Riccadonna. (1964). The effect of ionizing radiation on the floral anatomy of Coleus blumei Benth. M.S. thesis (Department of Botany); C. J. Hillson, Thesis Advisor.

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E

Ebert, Eleanor Ruth. (1935). The relation of temperature to growth of species of fomes and polyporus in culture. Master of Education thesis.

Elliott, Vernon James (1981). The influence of the number of component lines and of rate-limiting resistance on the epidemiology of multiline cultivars. Doctoral thesis; Richard R. Nelson and David R. MacKenzie, Co-advisors.

Emberger, Gary. (1978). Histopathology of chrysanthemum, cultivar Yellow Delaware, infected with Fusarium oxysporum f. sp. chrysanthemi. M.S. thesis; Paul E. Nelson, Thesis Advisor.

Enyedi, Alexander J. (1991). A Comparison of ribulose-1, 5-bisphosphate carboxylase/oxygenase from ozone-sensitive and ozone-tolerant potato cultivars. Doctoral thesis; Eva J. Pell, Thesis Advisor.

Enyinnia, Tobias. (1970). The effect of Meloidogyne incognita on the resistance of tomato to fusarium wilt. Master's thesis; James R. Bloom, Thesis Advisor.

Estrada, Alma Edith Rodriguez. (2005). Influence of substrate composition and mushroom strains on productivity and susceptibility of Pleurotus Eryngh to bacterial blotch disease. M.S. thesis; Daniel J. Royse, Thesis Advisor.

Estrada, Alma Edith Rodriguez (2008). Molecular phylogeny and increases of yield and the antioxidants selenium nad ergothioneine in basidiomata of Pleurotus eryngii. Ph.D. thesis. Daniel J. Royse and Maria del Mar Jimenez-Gasco, Thesis Co-advisors.

Evans, Donna Louise. (1977). Interactions of the Root-Knot Nematode, Meloidogyne incognita, and tobacco mosaic virus or cucumber mosaic virus in (Lycopersicon esculentum Mill) 'Rutgers'. M.S. thesis; James R. Bloom, Thesis Advisor.

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F

Fergus, Charles Leonard. (1948). Growth and ethylene production of Penicillium digitatum Sacc. Doctoral thesis; James W. Sinden, Thesis Advisor.

Fischer, Stacey L. (1986). The influence of chlorothalonil, nitrogen, and straw mulch on early blight development and yield of tomatoes. M.S. thesis; Stanley P. Pennypacker and Alan A. MacNab, Thesis Co-advisors.

Fisher, Nancy Lu. (1981). Symptomatology and colonization in the evaluation of resistance in chrysanthemum cultivars infected with Fusarium oxysporum f. sp. chrysanthemi. M.S. thesis; T. A. Toussoun, Thesis Advisor.

Fisher, Robert Eugene. (1972). Effect of ozone and hydrogen chloride gas on pinto bean plants. Master's thesis; Norman L. Lacasse, Thesis Advisor.

Foley, Dean Carroll. (1955). The effect of fertility on stalk rot of corn in Pennsylvania. Doctoral thesis; Clifford C. Wernham, Thesis Advisor.

Forer, Lyle B. (1972). Survey and studies on anthracnose of crownvetch and other legumes caused by Colletotrichum Sp. Master's thesis; Felix L. Lukezic and Paul E. Nelson, Thesis Co-advisors.

Freeborn, Rita J. (1985). Residual levels of chlorothalonil on tomatoes. M.S. thesis; Stanley P. Pennypacker, Thesis Advisor.

Fried, Padruot Men. (1977). Epidemiology of Erysiphe graminis f. sp. tritici in chancellor wheat and multilines. Doctoral thesis; Richard R. Nelson and David R. Mackenzie, Thesis Co-advisors.

Fries, Ronald Ernest. (1970). The influence of compounds from senescent corn leaves on sexual reproduction in Cochliobolus carbonum Nelson. Master's thesis; Richard R. Nelson, Thesis Advisor.

Fritz, Eric. (1974). The Use of satellite data to detect vegetative damage and alteration caused by pollutants. Master's thesis. Note: Thesis missing from Hildebrandt Library collection. Pattee/Paterno Library owns print and microfilm copies of the thesis: Thesis 1974mFritz,EL (print call number); Micro 4 PSUm1974Fritz,EL (microfilm call number).

Fromm, Matthew S. (2003). Forest impacts of the hemlock woolly adelgid and its association with Armillaria species. M.S. thesis; Donald D. Davis, Thesis Advisor.

Frontz, Timothy M. (1997). Factors associated with regeneration failures in recently harvested bigtooth aspen stands in north central Pennsylvania. M.S. thesis; Donald D. Davis, Thesis Advisor.

Fulton, Dennis Edward. (1972). Etiological factors associated with fusarium blight of turfgrass. Master's thesis; Herbert Cole, Jr. and Paul E. Nelson, Thesis Co-advisors.

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G

Gao, Weimin. (2001). A Study on the evolution and genomic organization of a telomere-linked helicase gene family in Magnaporthe grisea. Doctoral thesis; Seogchan Kang, Thesis Advisor.

Garzón, Carla D. (2004). Molecular characterization of selected Pythium species. Doctoral thesis; Gary W. Moorman and David M. Geiser, Thesis Co-advisors.

Geml, Jozsef. (2004). Systematics, biogeography and control of artillery fungi (Sphaerobolus spp.). Doctoral thesis.
Note: Thesis missing from Hildebrandt Library collection. PDF version of the dissertation is available to the Penn State University community via the UMI ProQuest Digital Dissertations database. A microfilm copy of the thesis is also available from Pattee/Paterno Library (call number: Microfilm Cd14994).

Gesalman, Claire Louise Martin. (1977). Susceptibility of ten azalea cultivars to ozone as related to stomatal characteristics. Master's thesis.

Gibbons, Frances Patterson. (1928). The migration of Bacillus amylovorus in pear tissue. Master's thesis.

Giddix, Leonard Roland. (1979). The effect of light and atrazine on the bacteria-induced hypersensitive response in soybean. Master's thesis.

Glandstone, Leslie. (1987). The Effect of nutrient salts on pythium root rot of seedling geraniums. Master's thesis.

Godish, Thaddeus Joseph. (1970). Effects of hydrogen chloride gas on photosynthesis, respiration, transpiration and photosynthetic pigments of tomato cv. Bonny Best. Doctoral thesis; Norman L. Lacasse and James Tammen, Thesis Co-advisors.

Goldberg, Erik L. (2002). Investigation of the role of the plant transcription factor WRKY35 in disease resistance. Master's thesis.

Goldsmith, Estella. (1931). The genus Polyporus in Luzerne county. Master's thesis.

Goodin, Michael M. (1991). Encapsidation of the La France disease-specific double-stranded RNAs in thirty-six nanometer isometric virus-like particles: A Thesis in plant pathology. Master's thesis.

Goodin, Michael M. (1995). Characterization of two viruses associated with Agaricus bisporus. Doctoral thesis; C. Peter Romaine, Thesis Advisor.

Grace, Patrick W. (1965). Responses of races of Phytophthora infestans (Mont.) de Bary, to phytoactin in vitro and in vivo. Master's thesis; Wilford R. Mills, Thesis Advisor.

Granillo, Carlos Rene. (1973). Tobacco and tomato ringspot viruses and their relationships with Tetranychus urticae Koch. Master's thesis; Samuel H. Smith, Thesis Advisor.

Gregory, L. Vann. (1977). Loss in yield of corn (Zea mays L.) as influenced by southern corn leaf blight: A Thesis in plant pathology. Master's thesis.

Gregory, L. Vann. (1982). Variation in parasitic fitness within populations of Helminthosporium carbonum race 3. Doctoral thesis; John E. Ayers and Richard R. Nelson, Thesis Co-advisors.

Guardino, John William. (1998). The performance, microbiology and disease suppressive nature of spent mushroom substrate used as casing for the production of the button mushroom Agaricus bisporus. Master's thesis.

Guevara, Yolanda Guillermina. (1991). Effect of adjuvants on survival and antagonistic interaction of a strain of Pseudomonas putida against Phoma medicaginis var. medicaginis on alfalfa leaves. Doctoral thesis; Felix L. Lukezic, Thesos Advisor.

Gugino, Beth Krueger. (2000). Identification of soil-borne pathogens associated with grapevine decline in six vineyards from central, southcentral and southeastern Pennsylvania. Master's thesis.

Gugino, Beth Krueger. (2004). The Pathogenicity of Cylindrocarpon destructans, a factor in grapevine decline and its potential management using composted soil amendments. Doctoral thesis; James W. Travis, Thesis Advisor.

Gustow, Evan. (1977). Comparison of basidiospores from healthy and virus-infected sporophores of Agaricus brunnescens Peck. Master's thesis.

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H

Haas, Jerry Henry. (1962). The pathogenicity of Thielaviopsis basicola (Berk. & Br.) Ferraris to Pelargonium X hortorum B. Doctoral thesis; James F. Tammen, Thesis Advisor.

Hadley, Bruce Alan. (1973). A histopathological study of Dianthus caryophyllus stem stubs infected with Fusarium roseum 'Graminearum'. M.S. thesis; Paul E. Nelson and John E. Ayers, Thesis Co-advisors.

Hager, Richard Arnold. (1966). An investigation of X-disease of the cultivated mushroom Agaricus bisporus (Lange) Sing. Doctoral thesis; Leon R. Kneebone, Thesis Advisor.

Halbert, Charles R. (1986). A method for screening plant growth regulators for use in cultivation of Agaricus bisporus (Lange) Imbach and the effects of fifteen plant growth regulators on sporophore yield and size. Master's thesis.

Hamid, Ali Bin Haji. (1981). Components of fitness attributes and the inheritance of resistance of corn to Cochliobolus carbonum race 3. Doctoral thesis; John E. Ayers, Thesis Advisor.

Hamlen, Ronald Alan. (1965). The hatching response of meloidogyne incognita eggs as affected by "root exudates" produced under different soil moisture stresses.
M.S. thesis; James R. Bloom, Thesis Advisor.

Hamlen, Ronald Alan. (1971). Identification of carbohydrates in root exudates of alfalfa, Medicago sativa L. cv. DuPuits, grown under gnotobiotic conditions, and their influence on egg hatch of Meloidogyne incognita (Kofoid & White) Chitwood. Doctoral thesis; James R. Bloom and Felix L. Lukezic, Thesis Co-advisors.

Hansen, Albert August. (1915). A study of Cladosporium fulvum. Master's thesis.

Happ, Albert Charles, II. (1974). Yield of Agaricus bisporus (Lange) imbach and occurrence of verticillium disease as influenced by aerated steam treatment of peat moss,spent compost, or loam soil. M.S. thesis; Paul J. Wuest, Thesis Advisor.

Harvey, Cathy Lou. (1978). Reaction of three strains of the cultivated mushroom, Agaricus brunnescens Peck, to four compost-invading fungi. Master's thesis.

Hausbeck, Mary K. (1990). The epidemiology of Botrytis cinerea pers. on the geranium (Pelargonium x hortorum L.H. Bailey). Doctoral thesis; Stanley P. Pennypacker, Thesis Advisor.

Hawthorne, Mary Elizabeth. (1940). An investigation of a diploid potato. Master's thesis.

Held, Victor Maxwell. (1954). Physiological differences between a normal and a degenerate strain of Sclerotinia trifoliorum Erikss. Doctoral thesis; Charles L. Fergus, Thesis Advisor.

Hellmann, Renate. (1990). Evaluation of the physiologic races of Ustilago hordei by starch gel electrophoresis. Master's thesis.

Herman, Ethel Lenore. (1936). Heat process method of softening woody stem tissue. Master's thesis.

Hetrick, Timothy S. (1992). Optimal temperature for linear growth of various strains of Agaricus Bisporus. Master's thesis.

Hickey, Kenneth Dyer. (1958). Studies on sooty blotch and fly speck diseases of apple. M.S. thesis; Fred H. Lewis, Thesis Advisor.

Hickey, Kenneth Dyer. (1960). The Sooty blotch and fly speck diseases of apple with emphasis on variation within Gloeodes pomigena (Schw.) Colby. Doctoral thesis.
Note: Thesis missing from Hildebrandt Library collection. Pattee/Paterno Library owns 2 print copies of the thesis, call number: Thesis 1960dHicke,KD.

Higgins, Bonnie K. (1995). Genetic analysis of a maize/pathogen interaction using random amplified polymorphic DNA (RAPD) markers. Master's thesis.

Hill, Joseph Paul. (1974). Ecological races of Helminthosporium maydis race T. M.S. thesis; Ricard R. Nelson, Thesis Advisor.

Hill, Joseph Paul. (1979). The heritability and genetic control of certain attributes of parasitic fitness of Helminthosporium maydis race T. Doctoral thesis; Richard R. Nelson, Thesis Advisor.

Hirayama, Lynne M. (1991). Sources of variation in a homothallic organism: Acquisition and stability of metalaxyl resistance in Pythium aphanidermatum. Master's thesis.

Hite, Raymond Eugene. (1972). The effect of irradiation on growth, asexual spore production, and the production of substances associated with sporulation of Botrytis cinerea. Doctoral thesis; Paul E. Nelson and Russell A. Hyre, Thesis Co-advisors.

Horna, Sheryl L. (1983). Selection of genetically diverse lines of Agaricus brunnescens for higher spawn run and production temperatures. Master's thesis.

Huether, Jeffrey Paul. (1973). Effects of tobacco mosaic virus strains on cultivars of eggplant, Solanum melongena L. Doctoral thesis; Wilford R. Mills, Thesis Advisor.

Huff, Crystal A. (1986). A diallel analysis to determine the inheritance of resistance to gray leaf spot of corn. Master's thesis.

Hunt, Greg. (1984). Studies on the roles of Bursaphelenchus xylophilus and Ceratocystis ips in the pine wilt syndrome. Master's thesis.

Hurwitz, Barbara. (1978). Influence of ozone on concentration of coumestrol and 4',
7-dihydroxyflavone in alfalfa foilage. M.S. thesis; Eva J. Pell, Thesis Advisor.

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Ibbotson, Holly M. (1997). Susceptibility of peach and nectarine fruit to Monilinia fructicola at different developmental stages. Master's thesis.

Illman, Barbara Lane. (1983). Ozone response of foliage and cells of sensitive and tolerant potato cultivars. Doctoral thesis; Eva J. Pell, Thesis Advisor.

Ireland, Karen Faye. (1985). Potential of culture filtrates from Verticillium albo-atrum in screening alfalfa for resistance. Master's thesis.

Ivors, Kelly Lynn. (2002). Molecular characterization of microbial diversity in commercial mushroom substrate. Docatoral thesis; David M. Beyer and Seogchan Kang, Thesis Co-advisors.

J

Jacome, Luis H. (1991). In vitro and in vivo variation among six isolates of Mycosphaerella fijienisis var. difformis. Doctoral thesis; Wolfgang Schuh, Thesis Advisor.

Jeschke, Nikola. (1987). The Ecology of Fusarium species in corn kernels and in soil. Master's thesis.

Jing, George N. (1994). Evaluation of the nematicidal properties of cruciferous plants for nematode management in replant orchards. Doctoral thesis; John M. Halbrendt, Thesis Advisor.

Jodon, Mildred Hallstead. (1970). Studies on production of toxic metabolites by Trichometasphaeria turcica (Helminthosporium turcicum). M.S. thesis; Richard R. Nelson, Thesis Advisor.

Johnson, Travis Carskadon. (1937). Seed treatment of clover and alfalfa for the control of damping-off. Master's thesis.

Jones, Marcus E. (1989). Potential use of bacteria for biological control of black stem and leaf spot on alfalfa. Master's thesis.

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Kaiser, Roger Paul. (1980). Initial stages of infection of Zea mays L. by Fusarium moniliforme Sheldon emend. Snyd. & Hans. causing stalk rot. Doctoral thesis; Paul E. Nelson, Thesis Advisor.

Kaps, Mary Ann. (1986). The role of Mycelial connections in the transfer of glyphosate between mycorrhizal pines. Master's thesis.

Karasevicz, Diane M. (1987). The biodeterioration of red oak dead following gypsy moth defoliation in Pennsylvania. Master's thesis.

Kaufman, Ted Douglas. (1982). A Study of the degenerative disease condition of the cultivated mushroom, Agaricus brunnescens peck associated with Saprophagous nematodes. Master's thesis.

Ke, Jing. (1989). Evaluation of foliar symptoms on Norway spruce [Picea abies (L.) Karst.] and relationship to nutrients status. Master's thesis.

Ke, Jing. (1991). Crown condition of Norway spruce [Picea Abies (L.) Karst.] and relationship to foliar and soil elemental status. Doctoral thesis; John M. Skelly, Thesis Advisor.

Keil, Harry Louis. (1939). Effects of various spray materials on the yield of tomatoes. Master's thesis.

Khang, Chang Hyun. (2005). Molecular characterization of the MgMEP avirulence gene family in the blast fungus magnaporthe grisea. Doctoral thesis.
Note: Electronic dissertation. File withheld at author's request.

King, Eileen Dorothea. (1982). The Effects of late blight, Colorado potato beetle, and weed populations on yield loss of potato. Doctoral thesis; David R. MacKenzie, Thesis Advisor.

Kingsland, Graydon Chapman. (1958). Etiology and epiphytology of stalk rot of corn in Pennsylvania. Doctoral thesis; Clifford C. Wernham, Thesis Advisor.

Kistler, Barry Rodger. (1977). Etiology, symptomology, epidemiology, and chemical control of Naemacyclus needlecast. Master's thesis.

Klaasen, Jeremy A. (1995). Genetic and mycotoxin studies of Fusarium nygamai, and the effect of calcium nutrition on Fusarium seedling blight of maize. Doctoral thesis.

Kleiner, William C. (1988). Evaluation of fungicides for the management of orange rust on black raspberry. Master's thesis.

Kline, Lee Jerome. (2006). Susceptibility and foliar response of broadleaved species exposed to ozone. Master's thesis.

Knauss, James Frederick. (1963). The resistance of Pelargonium species to Xanthomonas pelargonii (Brown) Starr and Burkholder. M.S. thesis; James F. Tammen, Thesis Advisor

Kneebone, Leon Russell. (1950). An investigation of basidiospore germination in the Hymenomycetes, especially in the Agaricaceae. Doctoral thesis; James W. Sinden, Thesis Advisor.

Knittel, Romy. (1989). Interactive effects of acidic rain and drought stress on Zea mays L. foliage. Master's thesis.

Kohut, Robert John. (1972). Response of hybrid poplar to simultaneous exposure to ozone and PAN. M.S. thesis; Francis A. Wood, Thesis Advisor.

Kohut, Robert John. (1975). The interaction of O3 and PAN on hybrid poplar and pinto bean. Doctoral thesis; William Merrill and Donald D. Davis, Thesis Co-advisors.

Koons, Carol Elizabeth. (1970). Studies on yellow leaf blight of corn caused by Phyllosticta sp. M.S. thesis; Ricard R. Nelson, Thesis Advisor..

Koons, Karen. (1984). Incidence and replication of double-stranded RNA associated with La France disease of the cultivated mushroom, Agaricus bisporus (Lange) Imbach. Master's thesis.

Kouterick, Kyle B. (1999). Foliar symptoms of birch associated with acidic fog and Septoria betulae Pass. Doctoral thesis; John M. Skelly and Stanley P. Pennypacker, Thesis Co-advisors.

Kress, Lance Whitaker. (1972). Response of hybrid poplar to sequential exposures of ozone and PAN. M.S. thesis; Francis A. Wood, Thesis Advisor.

Krumrine, Michelle L. (1991). Identification and characterization of a virus infecting the corn leaf aphid, Rhopalosiphum maidis. Bachelor's thesis.

Kuang, Mei. (2002). Transgenic analysis of La France isometric virus associated with La France disease of the cultivated mushroom, Agaricus bisporus. Master's thesis.

Kurtz, Elizabeth B. (1962). The nitrogen nutrition of Collectotrichum coccodes (Wallr.) Hughes. M.S. thesis; Charles L. Fergus, Thesis Advisor.

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Lacasse, Norman L. (1966). The role of auxin in double band formation in chestnut oaks infected with Ceratocystis fagacearum. Doctoral thesis; Francis A. Wood, Thesis Advisor.

Lalancette, Norman. (1982). Comparison of management strategies by quantification of apple powdery mildew epidemics. Master's thesis.

Lalancette, Norman, Jr. (1985). Selection and fitness of benomyl-sensitive and benomyl-resistant subpopulations of Venturia inaequalis on apple. Doctoral thesis; Kenneth D. Hickey and Herbert Cole, Jr., Thesis Co-advisors.

Lambert, David Howell. (1973). Population studies of Verticillium species associated with Agaricus bisporus (Lange) Imbach. M.S. thesis; Paul J. Wuest, Thesis Advisor.

Lambert, David Howell. (1979). Mycorrhizae establishment for strip mine revegetation. Doctoral thesis; Herbert Cole, Jr., Thesis Advisor.

Lathrop, Larry Douglas. (1979). Relationships among spectral reflectance and selected tomato (Lycopersicon esculentum) canopy variables. Master's thesis.

Latin, Richard X. (1976). Evaluation of reduced application techniques in conjunction with BLITECAST for the control of potato late blight. Master's thesis.
Note: Thesis missing from Hildebrandt Library collection. Pattee/Paterno Library owns print and microfilm copies of the thesis: Thesis 1976mLatin,RX (print call number); Micro 4 PSUm1976Latin,RX (microfilm call number).

Latin, Richard X. (1980). Factors in potato that reduce the rate of epidemic increase of potato late blight. Doctoral thesis; Herbert Cole, Jr. and David R. MacKenzie, Thesis Co-advisors.

Lawrence, Ellen Briskin. (1975). Histopathology of two inbred lines of sweet corn (Zea mays) naturally infected with Fusarium moniliforme and Fusarium oxysporum. M.S. thesis; Paul E. Nelson and John E. Ayers, Thesis Co-advisors.

Lawrence, Ellen Briskin. (1982). The nature and cause of the pionnotal variants in Gibberella baccata (Wallr.) Sacc. (Fusarium lateritium (Nees) emend. Snyd. et Hans.) and their pathogenicity on Celosia argentea L. and Amaranthus tricolor L. Doctoral thesis; Paul E. Nelson and T. A. Toussoun, Thesis Co-advisors.

Leo, Leonardo Zambito. (1978). The effect of periods of light exposure on the production of Isoflavonoids in soybean leaves infiltrated with Erwinia Amylovora and water. Master's thesis.

Lipschutz, Leslie. (1965). The resistance of zinnia species to alternaria zinniae pape. Master's thesis.

Liu, Kang-chien. (1972). Phytohemagglutinins and hemolysins in potato plants and their relations to virus infection. Doctoral thesis; John S. Boyle, Thesis Advisor.

Lockard, John David. (1962). An investigation of the metabolic gases produced by the cultivated mushroom Agaricus bisporus (Lange) Sing. Doctoral thesis; Leon R. Kneebone, Thesis Advisor.

Long, Robert. (1987). Tree-ring analysis of second-growth forests in Pennsylvania: Evaluation of dendroclimatic potential and atmospheric pollution effects on tree growth. Doctoral thesis; Donald D. Davis, Thesis Advisor.

Lopez, Melencio E. (1962). The nutrition of "Fusarium roseum" (Link) Snyder and Hansen. Master's thesis.

Lotstein, Richard Jan. (1982). Effects of SO2 on tomato fruit quality and plant susceptibility to Alternaria solani. Master's thesis.

Loughner, Daniel Louis. (1980). Factors influencing the efficacy of fungicides used for the control of Rhizoctonia Cerealis incitant of cool weather brown patch disease. Master's thesis.

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M

Ma, Bangya. (2006). Azoxystrobin sensitivity and resistance management strategies of Magnaporthe grisea causing gray leaf spot on perennial ryegrass (Lolium perenne) turf. Doctoral thesis; Wakar Uddin, Thesis Advisor.

MacKenzie, David Robert. (1967). Studies with maize dwarf mosaic virus from the Northeastern United States. Master's thesis.

MacKenzie, David Robert. (1970). Genetics of fungicide tolerance in a natural population of the plant pathogen Cochliobolus carbonum Nelson. Doctoral thesis; Herbert Cole, Jr. and Richard R. Nelson, Thesis Co-advisors.

Maczuga, Steven Anthony. (1987). The effect of fungicide scheduling systems and inoculum levels on the control of early blight of potato. Master's thesis.

Madden, Laurence Vincent. (1977). FAST, a forecaster of Alternaria solani on tomato. Master's thesis.

Madden, Laurence Vincent. (1980). Modeling crop losses due to disease. Doctoral thesis; Stanley P. Pennypacker, Thesis Advisor.

Mainer, Angel. (1976). Effect of Phoma and Stagonospora diseases on the quality of alfalfa and orchardgrass leaf tissue, respectively. Master's thesis.

Mamiro, Delphina Peter (2006). Non-composted and spent mushroom substrates for production of Agaricus bisporus. Ph.D. thesis; Daniel J. Royse, Thesis Advisor.

Mansfield, Michele Ann. (2005). Fungi and mycotoxins in fresh and ensiled maize and the affects of agronomic practices, weather conditions and silage characteristics on toxin contamination. Doctoral thesis; Gretchen A. Kuldau, Thesis Advisor.
Note: PDF version of the dissertation is also available to the Penn State University community at http://etda.libraries.psu.edu/

Marelli Jean-Philippe. (2008). Solanum lycopersicum as a model system to study pathogenicity mechanisms of Moniliophthora perniciosa, the causal agent of witches' broom disease of Theobroma cacao. Ph.D. thesis; Mark J. Guiltinan and Seogchan Kang, Thesis Co-advisors.

Massie, Lowry Brandon. (1973). Modeling and simulation of Southern corn leaf blight disease caused by race T of Helminthosporium maydis Nisik & Miyake. Doctoral thesis; Richard R. Nelson and Herbert Cole, Jr., Thesis Co-advisors.

Mataka, Jan Joseph. (1978). Influence of spawn incubation temperature of Agaricus bisporus (Lange) Sing. on La France disease symptomatology. Master's thesis.

McGrath, Margaret Tuttle. (1988). Mechanistic and theoretical modeling of yield reduction due to wheat stem rust. Doctoral thesis.

McIlveen, William David. (1977). The influence of zinc on the development of vesicular-arbuscular mycorrhizae in soybean. Doctoral thesis; Herbert Cole, Jr., Thesis Advisor.

McKinney, William Henry, Jr. (1915). A study of winter blight of tomato. Master's thesis.

Melnick, Rachel. (2006). Bacillus spp. From vegetable crops as biolgoical control agents against black pod rot of Theobroma cacao. Master's thesis.

Merek, Edward Leo. (1953). The longevity of the oak wilt fungus in nature and in the laboratory. Master's thesis.

Merino-Irigoyan, Ruben. (1963). Effect of strains of potato virus X on yield of potatoes. Master's thesis

Metzler, Joseph Thomas. (1979). The influence of peroxyacetyl nitrate as it relates to stomatal conductance and the macroscopic and microscopic sympton expression of primary bean leaves. Master's thesis.

Meyer, Federico Carlos. (1972). Translocation of tobacco mosaic virus in large tomato plants and the effect of growth regulators on virus disease symptomatology. Doctoral thesis; John S. Boyle, Thesis Advisor.

Michael, Alan Henry. (1970). The antagonistic effect of some soil bacteria on Fusarium roseum 'Culmorum' isolated from carnation. Master's thesis.

Miehle, Bruce Raymond. (1971). Studies on conidial germination and appressiorum formation by Colletotrichum trifolii Bain & Essary. Master's thesis.

Miller, Chris Andrew. (1979). The influence of exposure temperature on pinto bean macroscopic foliar response to O2 and SO2. Master's thesis.

Miller, Harold James. (1942). Laboratory and field studies on the retention and control of certain protective copper fungicides. Doctoral thesis;

Miller, John Wiley. (1917). Studies on the bud rot of peonies. Master's thesis.

Moghe, Purnachandra Gangadhar. (1974). Influence of heat and systemic chemicals on the multiplication of bean common mosaic virus. Doctoral thesis; John S. Boyle, Thesis Advisor.

Molina, Agustin B., Jr. (1983). Effects of host resistance, sanitation, fungicides, and timing of applications in the management of potato late blight. Doctoral thesis; David R. MacKenzie, Thesis Advisor.

Molineros, Julio E. (2007). Understanding the challenges of Fusarium Head Blight forecasting. Doctoral thesis; Scott A. Isard, Thesis Advisor.

Moore, Laurence Dale. (1961). The influence of environment on the susceptibility of highland bentgrass to foliar blighting incited by "pythium ultimum" Trow. Master's thesis.

Moore, Laurence Dale. (1965). Pectic and cellulolytic enzymes associated with Pythium ultimum-blighted highland bentgrass. Doctoral thesis; Houston B. Couch, Thesis Advisor.

Moore, Robert Kennedy. (1972). Aerated steam treatment of mushroom casing: I. Thermal sensitivity of selected fungi associated with Agaricus bisporus (Lange) Imbach; II. Soil colonization by Verticillium malthousei Ware. Master's thesis.

Morelli, Laurie T. (1983). The histopathology of stems, leaves and apical meristems of two chrysanthemum cultivars inoculated with Fusarium oxysporum f. sp. chrysanthemi and chrysanthemum stunt viroid. Master's thesis.

Morgan, Fred Clarke. (1979). Influence of thermal and chemotherapeutants on transmission of mushroom Agaricus bisporus (Lange) Imbach virus disease via basidiospores and cypress wood, Taxodium destichum (L.) Rich, suspected of harboring inoculum. Master's thesis.

Morrell, Jeffrey Joseph. (1979). Predisposition of tomato to Fusarium wilt as affected by root knot nematode and temperature. Master's thesis.

Morrone, Vicki L. (1995). Spatial distribution and improving sampling efficiency for Xiphinema plant parasitic nematodes in peach orchard soil. Master's thesis.

Moses, Clayton Small. (1930). The Strumella canker disease. Master's thesis.

Moyer, Barton Gene. (1973). Substitution for the ultraviolet radiation requirements for sporulation of Leptosphaerulina briosiana (Poll.) Graham and Luttrell. M.S> thesis; Kenneth T. Leath, Thesis Advisor.

Moyer, James William. (1973). The influence of systemic compounds on the occurrence of ozone injury to ornamental plants. M.S. thesis; Herbert Cole, Jr., Thesis Advisor.

Moyer, James William. (1975). Purification and serological indexing of mushroom viruses. Doctoral thesis; Samuel H. Smith, Thesis Advisor.

Murdock, Deborah Jane. (1975). A histopathological examination of Pelargonium infected with tomato ringspot virus. Master's thesis.

Muse, Ronald Robert. (1964). The influence of nutrition and soil moisture on corticium red thread of Pennlawn and Rainier fescues. Master's thesis; Houston B. Couch, Thesis Advisor.

Muza, Andrew J. (1990). Development of an expert system for integrated pest management of grapes in Pennsylvania. Master' thesis.

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Nalim, F. Ameena. (2004). Studies in molecular phylogenetics of Fusarium species. Doctoral thesis.

Nanayakkara, Upeksha. (2006). Effects of silicon on gray leaf spot development of perennial ryegrass turf. Doctoral thesis; Wakar Uddin, Thesis Advisor.

Nass, Herman Alfredo. (1980). The residual effects of certain defeated powdery mildew resistance genes in near-isogenic lines of Chancellor winter wheat. Master's thesis.

Newhart, Susan Ruth. (1981). Enzyme-linked immunosorbent assay (ELISA) for the detection of tobacco ringspot virus in Pelargonium x hortorum L. H. Bailey. Master's thesis.

Nicholson, Michael S. (1995). Restriction fragment length polymorphism and sequence analysis of ribosomal DNA for mapping and phylogenetic inference of Lentinula species. Doctoral thesis; Daniel J. Royse, Thesis Advisor.

Nolt, Barry Lee. (1978). Association of Polymyxa graminis with the transmission of wheat spindle streak mosaic virus. Master's thesis.

Nolt, Barry Lee. (1981). The characterization of RNA-dependent RNA polymerase activities in noninfected and tobacco ringspot virus-infected cucumber cotyledons. Doctoral thesis; Samuel H. Smith and C. Peter Romaine, Thesis Co-advisors.

North, Leonard Harris. (1987). Studies on verticillium disease of Agaricus bisporus (Lange) Imbach. Master's thesis.

Northover, Philip Robert (2008). Factors influencing the infection of cultivated grape (Vitis spp. section Euvitis) shoot tissue by Guignardia bidwellii (Ellis) viala & ravaz. Doctoral thesis; James W. Travis, Thesis Advisor.

Northover, Philip Robert. (1998). The relationship of the number of wetting periods and accumulated degree-days to sporulation of Guignardia bidwellii (Ellis) Viala & Ravaz in vineyards. Master's thesis.

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Oglevee, Wendy Ann. (1977). The use of chemotherapy in meristem-tip culture to eliminate potato spindle tuber viroid from potatoes. Master's thesis.

Omielan, Joseph Anthony. (1986). Ozone effects on photosynthesis and viability of isolated soybean mesophyll cells. Master's thesis.

Onyike, Nwanma Beatrice Nwuke. (1989). The distribution, toxigenicity, and evaluation of Fusarium species on millet and sorghum seed from Nigeria, Lesotho, and Zimbabwe. Doctoral thesis; Paul E. Nelson, Thesis Advisor.

Orth, Charles E. (1994). The Role of latent infections of soybeans by Cercospora kikuchii in the epidemiology of purple seed stain disease. Doctoral thesis.

Ospina-Giraldo, Manuel D. (1998). Molecular phylogenetic analyses of Trichoderma SPP. associated with mushroom green mold and their relationships with biological control agents. Doctoral thesis; Daniel J. Royse, Thesis Advisor.

Overton, Barrie E. (2004). Systematics of Hypocrea with effused stromata and anamorphs in Trichoderma section Hypocreanum. Doctoral thesis; Elwin L. Stewart and Gary J. Samuels, Thesis Co-advisors.

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Paine, Robert L. (1969). Spore germination in relation to host specificity of wood-rotting hymenomycetes. Master's thesis.

Palazzolo, Nicole Anne. (1981). Ozone-induced changes in protein composition in noninjured and injured alfalfa foliage. Master's thesis.

Palmer, Charles Mervin. (1925). Actinomycetes and potato scab. Master's thesis.

Parish, Priscilla Jeanne. (1982). Assessment of secondary infections of apple powdery mildew in experimental plots. Master's thesis.

Patil, Pandurang Laxman. (1971). The interaction of a fungus and a virus infection on root and stem rot of white lupine (Lupinus albus L.). Master's thesis.

Pawloski, Judith Ann. (1982). The effects of intermittent nitrogen dioxide exposures on nitrogen and glycoalkaloid status and yield of potato. Master's thesis.

Pawuk, William H. (1967). Factors influencing spore germination and colonization of sugar maple by "Fusarium solani". Master's thesis.

Pecchia, John A. (2000). The Influence of formulations and temperature regimes on mushroom composting odor generation and mushroom yield. Doctoral thesis; Paul J. Wuest and David M. Beyer, Thesis Co-advisors.

Peiffer, Michelle L. (1994). The Role of aphid salivary gland basal lamina in barley yellow dwarf virus vector specificity. Master's thesis.

Pelletier, Jean-Robert. (1984). Description and quantification of the sporulation capacity and density stress response of two isolates of Erysiphe graminis f. sp. tritici on four cultivars of winter wheat. Master's thesis.

Pellissier, Marc Paul. (1971). Effect of foliar and root treatments of benomyl in reducing ozone injury to pinto bean and cucumber. Master's thesis.

Pennypacker, Barbara White. (1991). Verticillium wilt of alfalfa: Water relations, carbon assimilation, and growth of resistant alfalfa (Medicago sativa L.) infected with Verticillium albo-atrum Rke. et Berth., and the influence of drought on the host-pathogen interaction. Doctoral thesis; Kenneth T. Leath, Thesis Advisor.

Peplinski, John David. (1972). Non-survival of Ceratocystis Fagacearum (Bretz) Hunt in the Frass of oak bark beetles and Ambrosia beetles. Master's thesis.

Perez, Julian Manuel. (1988). Overwintering in Pennsylvania and the direct penetration of tomato leaves by Pseudomonas syringae pv. tomato. Master's thesis.

Petrunak, Dianne M. (1991). Isozyme variability in Alternaria solani and Alternaria alternata determined by starch gel electrophoresis. Master's thesis.

Porter, Richard Milner. (1978). Effect of differential accumulation of phosphorus in corn (Zea mays L.) on stalk rot parameters. Master's thesis.

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Raid, Richard N. (1984). Weeds as hosts and potential inoculum sources for Colletotrichum coccodes. Master's thesis.

Raid, Richard N. (1986). The effects of Puccinia polysora on growth and yield of corn. Doctoral thesis; Stanley P. Pennypacker, Thesis Advisor.

Ramon, Maria Paola. (2003). Effects of fertilizer, pH and biological control on Pythium root rot. Master's thesis.

Rauyaree, Payungsak. (2003). Molecular basis of pathogenicity by soilborne fungal plant pathogen, Verticillium dahliae. Doctoral thesis; Seogchan Kang, Thesis Advisor.

Reese, Elwyn Thomas. (1946). Aerobic decomposition of cellulose by micro-organisms at temperatures above 40 degrees Celsius. Doctoral thesis; James W. Sinden, Thesis Advisor.

Reese, Elwyn Thomas. (1938). The powdery mildews of northeastern Pennsylvania. Master's thesis.

Reines, Mervin Harold. (1951). Some anatomical responses produced in corn by applications of 2, 4-D. Master's thesis.

Renderos, Willy Eduardo. (1988). The ability of three strains of Bacillus polymyxa and two Bacillus sp. to affect Pythium and Rhizoctonia damping-off and to promote growth of alfalfa (Medicago sativa L.) seedlings. Master's thesis.

Rennard, Jacob Arthur. (1940). Reaction of some wood-decaying fungi on tannic acid medium. Master's thesis.

Rex, Edgar George. (1925). Cabbage Black-leg caused by Phoma. Master's.

Rhoads, Arthur Stevens. (1915). The black zones formed by some wood-destroying fungi. Master's thesis.

Rist, DeVerne Leslie. (1977). The influence of exposure temperature and humidity on the response of pinto beans to SO2, in relation to stomatal conductance and SO2 uptake. Master's thesis.

Ritter, Jeanette Gladys. (1930). Origin and development of tissues formed in the healing of wounds made by ringing woody stems. Master's thesis.

Robertson, Janet Schoonmaker. (1979). The effects of late blight, green peach aphid, and redroot pigweed on yield loss of potato. Master's thesis.

Rodríguez, Rocío del Pilar. (1988). Role of Phoma medicaginis malbr. & roum. var. medicaginis in the etiology of root and crown rot of alfalfa. Doctoral thesis; Kenneth T. Leath and Felix L. Lukezic, Thesis Co-advisors.

Rouse, Douglas Irving. (1979). Components of horizontal resistance to powdery mildew of wheat as related to disease progress and parasitic fitness. Doctoral thesis.

Royer, Matthew Henry. (1979). The effect of host resistance on relative parasitic fitness. Master's thesis.

Royer, Matthew Henry. (1982). An evaluation of the independence of Erysiphe graminis f. sp. tritici virulence genes in natural populations and phenotypic specificity to certain defeated powdery mildew resistance genes. Doctoral thesis; Richard R. Nelson, Thesis Advisor.

Rytter, Joann L. (1987). The Biological control of geranium rust, Puccinia pelargonii-zonalis Doidge, by a bacterial antagonist. Master's thesis.

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Sacco, Paul. (1939). The effect of certain indole compounds upon cuttage. Master's thesis.

Sacco, Paul. (1946). Mineral absorption and resistance to wildfire in tobacco. Doctoral thesis; Henry W. Popp, Thesis Advisor.

Sanogo, Soumaila. (1991). Spread and control of Pythium spp. in an ebb and flow subirrigation system. Master's thesis.

Sanogo, Soumaila. (1995). Epidemiology of tomato anthracnose caused by Colletotrichum coccodes (Wallr.) Hughes. Doctoral thesis; Stanley P. Pennypacker, Thesis Advisor.

Savage, James E. (1999). Plant bioindicator responses to ambient ozone exposures in the Commonwealth of Pennsylvania : Survey results from the 1998 Forest Health Monitoring Plots and Air Quality Monitoring Sites. Master's thesis.

Sayed, Mustafa Quasim. (1960). The effect of nutrition, pH and nematodes on damping-off disease of pea, tomato, and cucumber. Doctoral thesis; James R. Bloom, Thesis Advisor.

Scalza, Janice Christine. (1979). The effect of Agrobacterium radiobacter var. radiobacter strain 84 and soil fumigation on the incidence of crown gall induced by strains of A. radiobacter var. tumefaciens in Pennsylvania. Master's thesis.

Scarborough, Betsy Ann. (1974). The effects of tobacco ringspot virus and tomato ringspot virus on growth and flowering quality of Pelargonium x hortorum Baile. Master's thesis.

Scheifele, Gordon LeRoy. (1969). Stabilizing selection in "Trichometasphaeria turcicca" ("Helminthosporium turcicum") on "Zea mays". Master's thesis.

Schisler, Lee Charles. (1952). An attempt to overcome the stunting effect of short-wave radiation with synthetic plant growth substances. Master's thesis.

Schisler, Lee Charles. (1957). A physiological investigation of sporophore initiation in the cultivated mushroom, Agaricus campestris L. ex Fr. Doctoral thesis; Leon R. Kneebone, Thesis Advisor.

Schmidt, Robert Allen. (1961). Branch canker and dieback of "quercus prinus" L. caused by a species of "botryodiplodia. Master's thesis.

Schmidt, Robert Allen. (1964). The microclimate of the habitat of Fomes annosus (Fr.) Karst. and the influence of several environmental factors on basidiospore release. Doctoral thesis; Francis A. Wood, Thesis Advisor.

Schroeder, Gary Morris. (1980). Effect of compost moisture, casing moisture, and supplementation on size and yield of commercial mushrooms. Master's thesis.

Schultz, Otto Ernst. (1962). Inter- and intra-race variation among mass and monozoospore isolates of Phytophthora infestans (Mont. ) de Bary. Doctoral thesis; Wilford R. Mills, Thesis Advisor.

Seem, Robert Charles. (1972). Evaluation of potential chemical protectants from ozone damage to Phaseolus vulgaris L. Master's thesis.

Seem, Robert Charles. (1976). Potato tuber maturity: Analysis and prediction.
Doctoral thesis; Herbert Cole, Jr., Thesis Advisor.

Shain, Louis. (1960). The influence of soil moisture on absorption of solutions through cut stumps and development of oak wilt. Master's thesis.

Shaw, Charles Gardner. (1940). Microscopic characteristics of some wood-decay fungi. Master's thesis.

Shen, Qing. (2001). Molecular phylogenetic analysis of Grifola frondosa (maitake) and related species and the influence of selected nutrient supplements on mushroom yield. Doctoral thesis; Daniel J. royse, Thesis Advisor.

Shinde, Pandurang Abaji. (1972). Studies on role of bacteria in root-rot and wilt of alfalfa. Doctoral thesis; Felix L. Lukezic, Thesis Advisor.

Shriner, Carole Ruth Keyes. (1972). Resin constituents of Pinus strobus and their effects on the growth of selected wood-inhabiting fungi in vitro. Master's thesis.

Shriner, David S. (1969). Comparative effects of hydrogen chloride gas on tomato and chrysanthemum: I. Distribution and accumulation of chloride following exposure. II. Pathological anatomy of hydrogen chloride gas injury. Master's thesis.

Shrum, Robert D. (1969). The influence of environment on basidiospore release by Fomes rimosus (Berk.) Cooke. Master's thesis.

Shrum, Robert D. (1975). EPIDEMIC: a Flexible plant disease simulator. Doctoral thesis; James Tammen and Charles H. Kingsolver, Thesis Co-advisors.

Shuman, Joel Lee. (1995). Integrating a host resistance factor into a potato early blight forecasting model. Master's thesis.

Sica, Cory J. (2003). Pennsylvania populations of Alternaria solani, the causal agent of early blight of potato evaluated for fungicide resistance. Master's degree.

Siegler, Eugene Alfred. (1918). The Histological relations of several rot fungi to the tissues of the apple fruit. Master's thesis.

Sigulas, Kristen M. (1986). Genetic studies of polygenic resistance to Helminthosporium turcicum race 2 in corn. Master's thesis.

Sim, Susan Hope Tweedie. (1983). Locating sources of resistance to bean yellow mosaic virus in red clover (Trifolium pratense L.). Master's thesis.

Skelly, John Moore. (1964). The nature and occurrence of an annual canker of "acer saccharum", Marsh. in Pennsylvania. Master's thesis.

Skelly, John Moore. (1968). Root inhabiting insects as possible vectors of Ceratocystis fagacearum (Bretz) Hunt. Doctoral thesis; Francis A. Wood, Thesis Advisor.

Sluzalis, Lawrence Leonard. (1933). Cultural characteristics of some wood-destroying fungi. Master's thesis.

Small, Daniel Llewellyn. (1983). Penetration and colonization of tomatoes by Fusarium oxysporum f. sp. radicis-lycopersici and Fusarium oxysporum f. sp. lycopersici. Master's thesis.

Smeenk, Peter Jeffery. (1992). Interaction between Heterodera trifolii, Fusarium avenaceum and Fusarium acuminatum on Red Clover. Master's thesis.

Smith, Donald Harvey. (1962). Light effects on growth and reproduction of "Botryosphaeria ribis" Gross. und Dug. Master's thesis.

Smith, Donald Harvey. (1966). A study of certain aspects of the black knot disease of plum and its causal agent, dibotryon morbosum (Schw.) Theiss. and Syd. Doctoral thesis; Fred H. Lewis, Thesis Advisor.

Smith, Harry Jay. (1976). Influence of SO2 on conifers with emphasis on morphology and histology of scotch pine. Master's thesis.

Snow, Jean A. (1964). Effects of light on initiation and development of bean rust disease.
Doctoral thesis.

Sommerfeld, Mark L. (1988). The effects of barley yellow dwarf virus and Helminthosporium avenea infections, singly and in combination, on yield components of oats. Master's thesis.

Soulen, David Michael. (1972). Root chip inoculation, an indexing method for prunus stem pitting. Master's thesis.

Spadafora, Vincent James. (1986). Epidemiology and control of Septoria nodorum leaf and glume blotch on soft red winter wheat in Pennsylvania. Doctoral thesis; Herbert Cole, Jr. and James A. Frank, Thesis Co-advisors.

Spear, Mark. (1983). Protoplast production, purification, and regeneration in Agaricus brunnescens. Master's thesis.

Speroni, Joseph James. (1979). The influence of ozone on glycoalkaloid levels in potato tubers and foliage. Master's thesis.

Spotts, Robert Allen. (1974). The effect of benzimidazole on some membrane properties, leaf steols, and ozone resistance of Phaseolus Vulgaris L. Doctoral thesis; Felix L. Lukezic, Thesis Advisor.

Sriskantha, Alagacone. (1982). Enzyme-linked Immunosorbent Assay (ELISA) and inclusion body analysis for the detection of Tobacco Mosaic virus. Master's thesis.
Note: PDF version of the dissertation is also available to the Penn State University community via the UMI ProQuest Digital Dissertations database.

Sriskantha, Alagacone. (1985). Biochemical characterization of viruses in Agaricus bisporus. Doctoral thesis; C. Peter Romaine, Thesis Advisor.

Stambaugh, William James. (1957). Mycelial mats of the oak wilt fungus and their relation to overland disease spread. Doctoral thesis.

Starkey, Thomas Edward. (1975). The influence of peroxyacetyl nitrate on bean (Phaesolus vulgaris L.) subjected to post-exposure water stress. Master's thesis.

Starkey, Thomas Edward. (1977). Analysis of plant disease epidemics. Doctoral thesis; Stanley P. Pennypacker and Donald D. Davis, Thesis Co-advisors.

Stevenson, Richard Elmer. (1982). Quantitative and qualitative effects of radiation on germination of Alternaria solani. Master's thesis.

Stockwell, Christine Anastasia. (1982). The effect of temperature on host-parasite interactions during penetration of wheat leaves by Bipolaris sorokiniana. Master's thesis.

Struble, Frank Ben. (1940). Some disease resistance studies with snapdragons, Antirrhinum majus L. Master's thesis.

Stuehling, Barbara Ann. (1980). Fusarium wilt of chrysanthemum: A histological study of infected stems and leaves. Master's thesis.

Stutz, Jean Carol. (1981). Various aspects affecting virulence of Fusarium roseum 'Acuminatum' and Fusarium roseum 'Avenaceum' in red clover. Doctoral thesis; Kenneth T. Leath and Felix L. Lukezic, Thesis Co-advisors.

Sulaiman, Inon Bte. (1977). The Effect of potato virus X (PVX) immune gene on the susceptibility of potato tubers to Fusarium roseum 'Sambucinum' tuber rot. Master's thesis.

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Tavantzis, Stylianos Michael. (1977). Mushroom viruses detected in and transmitted by spawn of Agaricus bisporus. Master's thesis.

Tavantzis, Stylianos Michael. (1980). On the bacilliform virus associated with La France disease of Agaricus bisporus (Lange) imbach: The First known single-stranded ribonucleic acid mycovirus. Doctoral thesis; Samuel H. Smith and C. Peter Romaine, Thesis Co-advisors.

Théberge, Robert Laurier. (1983). Late leaf spot management strategies for peanut production in South China. Doctoral thesis; David R. MacKenzie, Thesis Advisor.

Thomas, Garfield G. (1980). Causal organisms of tomato fruit rot in Pennsylvania canning tomatoes. Master's thesis.

Thon, Michael R. (1998). Evolutionary relationships among members of the genus Lentinula and other selected Basidiomycetes based on beta-tubulin and ribosomal DNA sequences. Doctoral thesis; Daniel J. Royse, Thesis Advisor.
Note: PDF version of the dissertation is also available to the Penn State University community via the UMI ProQuest Digital Dissertations database.

Tijerina-Menchaca, Artemio. (1969). Studies on the physiology of sexual reproduction in Cochliobolus carbonium Nelson. Doctoral thesis; Richard R. Nelson, Thesis Advisor.

Torsello, Mary L. (1992). Cryphonectria canker of scarlet oak in Pennsylvania: Incidence, severity, and influence on growth. Master's thesis.

Truxall, David L. (1992). The Requirements for infection of Arthuriomyces peckianus on Black raspberry. Master's thesis.

Truxall, David L. (1995). An environmentally driven model for grape black rot scouting and the impact of environmental data differences on disease control decision-making. Doctoral thesis; James W. Travis, Thesis Advisor.

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Vali, Rita J. (1991). Comparative fitness and influence of selected fungicide regimes on dicarboximide-resistant and -sensitive strains of Botrytis cinerea Pers. Master's thesis.

Van Sickle, Gordon. (1972). Epidemiology and impact of a needle rust (Pucciniastrum goeppertianum) on Abies balsamea. Doctoral thesis.

Vargo, Rodney Harold. (1976). Characterization of tobacco ringspot virus-induced ozone resistance in soybean. Master's thesis.

Vélez-Climent, Maria C. (2008). Adhesion of Phakopsora pachyrhizi urediniospores to soybean leaves. M.S. thesis; Scott Isard, Thesis Advisor.

Vendryes, Janis B. (1979). The Influence of Ozone on the presence of the Isoflavones Daidzein, Genistein, and Formonentin in Alfalfa foliage. Master's thesis.

Villareal, Raynaldo Lopez. (1980). The slow leaf blast infection in rice (Oryza sativa L.). Doctoral thesis; Richard R. Nelson, Thesis Advisor.

Vivanco, Jorge M. (1999). Studies on the biochemistry and physiology of root-specific ribosome inactivating protein (RIPs) in Mirabilis expansa and related species. Doctoral thesis; Hector E. Flores, Thesis Advisor.

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Wach, Mark P. (1983). Double-stranded RNA associated with La France disease of the cultivated mushroom. Master's thesis.

Wach, Mark P. (1985). Partial characterization of the double-stranded RNAs in the cultivated mushroom. Doctoral thesis; C. Peter Romaine, Thesis Advisor.

Wahl, Herbert Alexander. (1929). The migration of Bacillus amylovorus in the tissues of the quince. Master's thesis.

Wainwright, Stephen Hollis. (1968). The developmental morphology of "Dibotryon morbosum" (Schw.) Theiss. et Syd. on plum. Master's thesis.

Wainwright, Stephen Hollis. (1971). Comparative histopathology of the resistant and susceptible response of Pelargonium spp. to infection by Xanthomonas pelargonii. Doctoral thesis; Paul E. Nelson, Thesis Advisor.

Wallis, Christopher M. (2004). Aphid vectors and viral microevolution of Pennsylvanian strains of Plum pox virus. Master's thesis.

Walton, Richard Chambers. (1923). Time and conditions when frog-eye infection takes place. Master's thesis.

Wardle, Kenneth Stanley. (1967). The effects of various lipids on growth of mycelium of "Agaricus bisporus" (Lange) Sing. Master's thesis.

Warren, Clifford Goldberg. (1976). Variable dollarspot tolerance and pythium blight stimulation with benzimidazole fungicides in turfgrasses. Doctoral thesis; Herbert Cole, Jr. and Joseph M. Duich, Thesis Co-advisors.

Watson, Gregory Robert. (1982). The effects of atrazine on soft red winter wheat diseases and yield. Master's thesis.

Watts, Grace Weston. (1928). A comparative study of the behavior of certain strains of Bacterium tumefaciens in plant tissue. Master's thesis.

Wei, Caimiao. (2002). Influence of sunflecks on hybrid poplar, black cherry, and red maple response to ozone. Doctoral thesis; John M. Skelly, Thesis Advisor.

Weidensaul, Thomas Craig. (1969). Epidemiology of fusarium canker of sugar maple. Doctoral thesis; Francis A. Wood, Thesis Advisor.

Weir, Tiffany L. (1997). Investigation of the genetic variability in the fungal pathogens Alternaria solani and Alternaria alternata. Master's thesis.

Welch, Donald Ray. (1961). Purification, preservation and nucleic acid infectivity of sour cherry necrotic and prune dwarf viruses. Master's thesis.

Wenner, Nancy G. (1987). The effect of Chlorothalonil on the infection of scots pine by Cyclaneusma minus. Master's thesis.

Wertz, Halfred W. (1970). Four species of ambrosia beetles as vectors of Ceratocystis fagacearum (Bretz) Hunt. Master's thesis.

Westover, Friedrich A. (2004). Biological soil factors involved in grape replant disorder in Pennsylvania and evaluation of compost amendments. Master's thesis.

Wharton, David C. (1954). A Histological study of internal browning of the tomato.
Master's thesis.

Wharton, David C. (1956). Tomato mineral metabolism and respiration as affected by two strains of tobacco mosaic virus. Doctoral thesis.

White, Barbara Lee. (1971). Histopathology of carnation (Dianthus caryophyllus L.) infected with Fusarium oxysporum Schlecht. f. sp. dianthi (Prill. et Del. ) Snyd. et Hans. Master's thesis.

Wickramasinghe, W. M. Damitha K. (2007). Linkage analysis, QTL mapping and marker-assisted selection for disease resistance in a diploid hybrid potato population. Master's thesis.

Wiese, Cosima B. (1996). Influence of ozone on Rubisco content in transgenic plants expressing reduced quantities of Rubisco. Master's thesis.

Wiese, Cosima B. (2001). Oxidative modification of the cell wall in plants exposed to the atmospheric pollutant ozone. Doctoral thesis; Eva J. Pell, Thesis Advisor.

Wilde, Earle Irving. (1917). The investigation and control of anthracnose and rust of the snapdragon, Antirrhinum majus L. Master's thesis.

Wilhour, Raymond Gene. (1970). The influence of ozone on white ash (Fraxinus americana L.). Doctoral thesis; Francis A. Wood, Thesis Advisor.

Wolf, Robert T. (1968). An anatomical study of carnation stems infected with the carnation strain of "Erwinia chrysanthemi". Master's thesis.

Wolff, Emily Tower. (1947). An experimental study of Colletotrichum graminicolum on fine turf. Doctoral thesis; C. C. Wernham, Thesis Advisor.

Wu, Tianshu. (1999). Root herbivory in vitro: Interactions between roots and aphids grown in aseptic co-culture. Master's thesis.

Wuest, Paul Joseph. (1963). A quantitative study of Meloidogyne hapla eggs as affected by temperature and ultraviolet radiation. Doctoral thesis; James R. Bloom, Thesis Advisor.

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Yelenosky, George. (1958). The absorption and translocation of solutions in healthy oak wilt-diseased red oaks. Master's thesis.

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Zabalgogeazcoa, Iñigo. (1992). Physico-chemical properties, transmission, and origin of a double-stranded ribonucleic acid in barley cultivars. Doctoral thesis; Frederick E. Gildow, Thesis Advisor.

Zang, Larry Edmund. (1984). Spore release and apothecial development in Naemacyclus minor Butin. Master's thesis.

Zeiders, Kenneth Eugene. (1958). Studies on internal bark necrosis of red delicious apple trees. Master's thesis.

Zhang, Ruofang. (2004). Genetic characterization and mapping of partial resistance to early blight in Diploid potato. Doctoral thesis; Barbara J. Christ, Thesis Advisor.

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