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Academic Affiliation:
Botany and Plant Pathology
Resource Type:
Masters Thesis
Rights Statement:
Copyright Not Evaluated
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Academic Affiliation
Botany and Plant Pathology (190)
Advisor
Chambers, Kenton L. (11)
Powelson, Mary L. (10)
Zobel, Donald B. (10)
Hansen, Everett M. (7)
Phinney, Harry K. (7)
Wilson, Mark V. (7)
Johnson, Kenneth B. (6)
Linderman, Robert G. (6)
Allen, Thomas C. (5)
Chilcote, William W. (5)
Powelson, Robert L. (5)
Cameron, H. Ronald (4)
Mcintire, C. David (4)
Moore, Larry W. (4)
Armstrong, Donald J. (3)
Chilcote, W. W. (3)
Corden, Malcolm E. (3)
Coyier, Duane L. (3)
Hampton, Richard O. (3)
Mundt, Christopher C. (3)
Quatrano, Ralph S. (3)
Rickson, Fred R. (3)
Roth, Lewis F. (3)
Arp, Daniel J. (2)
Bishop, Norman I. (2)
Corden, M. E. (2)
Denison, William C. (2)
Evans, Harold J. (2)
Franklin, Jerry F. (2)
Ingham, Russell E. (2)
Jensen, Harold J. (2)
Mills, Dallice (2)
Mills, Dallice I. (2)
Moore, Larry (2)
Muir, Patricia S. (2)
Pyke, David A. (2)
Smith, Frank H. (2)
Spatafora, Joseph W. (2)
Welty, Ronald E. (2)
Zeller, S. M. (2)
Zobel, Donald (2)
Allen, T. C., jr (1)
Allen, Thomas C., jr. (1)
Anderson, Anne J. (1)
Barss, H. P. (1)
Coakley, Stella M. (1)
Crowe, Fred J. (1)
Denison, W. C. (1)
Dolja, Valerian V. (1)
Fowler, John (1)
Frenkel, Robert E. (1)
Hampton, R. O. (1)
Hansen, Everett (1)
Horner, Chester E. (1)
Ingham, Elaine R. (1)
Kelsey, Rick G. (1)
Koepsell, Paul A. (1)
Lajtha, Kate (1)
Liston, Aaron (1)
Liston, Aaron I. (1)
Lomax, Terri L. (1)
Martin, Robert R. (1)
Mc Whorter, Frank P. (1)
Mccune, Bruce (1)
Mccune, Bruce P. (1)
Mcwhorter, Frank P. (1)
Meinke, Robert J. (1)
Meints, Russel H. (1)
Milbrath, J. A. (1)
Moore, Thomas C. (1)
Neilson, Ronald P. (1)
Rivin, Carol (1)
Rivin, Carol J. (1)
Roth, L. (1)
Sugar, David (1)
Tingey, David T. (1)
Trappe, James M. (1)
Vance, Nan C. (1)
Vaughan, E. K. (1)
Winner, William E. (1)
Commencement Year
1978 (12)
1980 (12)
1966 (11)
1988 (9)
1995 (9)
1983 (8)
1984 (8)
1981 (7)
1985 (7)
1986 (7)
1996 (7)
1998 (7)
1977 (6)
1982 (6)
1987 (6)
1976 (5)
1991 (5)
1993 (5)
1997 (5)
2000 (5)
1968 (4)
1969 (4)
1992 (4)
1999 (4)
1963 (3)
1994 (3)
2002 (3)
1932 (2)
1964 (2)
1989 (2)
1990 (2)
2004 (2)
2005 (2)
1930 (1)
1931 (1)
1967 (1)
1970 (1)
1979 (1)
2001 (1)
Committee Member
Frenkel, Robert (3)
Lomax, Terri (3)
McCune, Bruce (3)
Pyke, David (3)
Allen, Tom (2)
Bottomley, Peter J. (2)
Breen, Patrick (2)
Chambers, Kenton (2)
Dreher, Theo (2)
Johnson, Ken (2)
Kronstad, Warren (2)
Meinke, Robert (2)
Miller, Jeff (2)
Minore, Don (2)
Muir, Pat (2)
Petersen, R. G. (2)
Phinney, Harry (2)
Powelson, Mary (2)
Ruben, John (2)
Swanson, Fred (2)
Zobel, Don (2)
Acker, Steve (1)
Andersen, Chris (1)
Anderson, A. (1)
Anderson, Norm (1)
Anderson, Norman (1)
Anderson, Sonia (1)
Armstrong, Donald (1)
Armstrong, Donald J. (1)
Baisted, D. (1)
Baisted, Derek (1)
Beatty, Joseph (1)
Berry, Ralph (1)
Bloomer, Sherman (1)
Boersma, Larry (1)
Borman, Michael (1)
Bottomley, Peter (1)
Breen, Pat (1)
Brown, Lyle (1)
Cameron, Ron (1)
Castellano, Michael (1)
Chen, Paul (1)
Chilcote, William (1)
Christensen, N. W. (1)
Christensen, Neil (1)
Coolbaugh, Ronald C. (1)
Cummins, Ken (1)
Daeschel, Mark (1)
Denison, William (1)
Dick, Richard (1)
Doescher, Paul (1)
Eddleman, Lee (1)
Eddleman, Lee E. (1)
Evelyn, Sherr (1)
Farber, Paul (1)
Franklin, Jerry (1)
Frenkel, R. (1)
Green, J. (1)
Green, James L. (1)
Green, Jim (1)
Guerrant, Ed (1)
Hannaway, David (1)
Hayes, Patrick (1)
Hemphill, Delbert (1)
Hermann, Richard (1)
Hibbs, Dave (1)
Hibbs, David (1)
Horner, C. E. (1)
Hsu, Victor L. (1)
Ingham, Elaine (1)
Kentula, Mary (1)
Kentula, Mary E. (1)
Kerkvleit, Nancy (1)
Larson, Gary (1)
Lattin, Jack (1)
Lavender, Denis (1)
Leach, C. (1)
Leach, Charles M. (1)
Linderman, R. G. (1)
Liston, Aaron (1)
Lombard, Porter (1)
Loomis, W. David (1)
Loper, Joyce (1)
Marsch, Susan (1)
Martin, Robert (1)
McIntire, C. D. (1)
McIntire, Dave (1)
McIntire, David (1)
Miller, Jeffry (1)
Mills, Dallice I. (1)
Mok, Machteld (1)
Mok, Machteld C. (1)
Moldenke, Andy (1)
Molina, Randy (1)
Moore, Larry (1)
Moore, T. C. (1)
Moore, Thomas (1)
Morita, R. (1)
Newton, Michael (1)
Parks, Leo (1)
Pearson, George (1)
Petersen, Roger (1)
Powelson, M. L. (1)
Pscheidt, Jay (1)
Psheidt, J. W. (1)
Quatrano, Ralph (1)
Richardson, D. (1)
Rickson, Fred R. (1)
Rohrmann, George (1)
Rosenberg, Dan (1)
Roth, Lewis (1)
Schafer, Dan (1)
Schaup, Henry (1)
Sedell, Jim (1)
Slabaugh, Mary (1)
Somero, George (1)
Spatafora, Joey (1)
Stone, Jeff (1)
Strauss, Steve (1)
Strik, Bernadine (1)
Sugar, D. (1)
Thompson, M. (1)
Thompson, Maxine (1)
Trappe, Jim (1)
Unsworth, Michael (1)
Vella, Anthony (1)
Waring, Richard (1)
Warren, Charles (1)
Watrud, Lidia (1)
Wilson, Mark (1)
Winward, A. H. (1)
Wolpert, Tom (1)
Worrest, Bob (1)
Creator
Adams, David Howard (1)
Alexander, J. Andrew (1)
Alsheikh, Abdulmagid M. (1)
Alverson, Edward R. (1)
Ames, Robert Norman (1)
Anderson, Dirk M. (1)
Angwin, Peter A. (1)
Antoine, Marie E. (1)
Arbogast, Meghan Canfield (1)
Axelrood, Paige Ellen (1)
Azevedo, Mark D. (1)
Baca, Steve (1)
Barnes, April E. Hootman (1)
Beaver, Richard Gary, 1939 (1)
Bekedam, Steven (1)
Benbow, Jesse M. (1)
Bender, Carol Lavane (1)
Bennett, Robert J. (Robert Joe), 1953 (1)
Berlanger, Ingrid E. (1)
Bertoni, Gregory (1)
Bledsoe, Karen E. (1)
Bogar, Gerald Dale (1)
Bouzar, Hacene (1)
Bredensteiner, Kim C. (1)
Brodhagen, Marion L. (1)
Brown, Kevin R. (1)
Busch, David E. (1)
Cahill, James M. (1)
Calvero, Silvino B. (1)
Capitano, Bryan R. (1)
Cappaert, Marlys R. (1)
Cardon, Nanette Clark (1)
Carre, Deborah Danielle (1)
Christensen, Todd M. (1)
Churchill, Alice Cynthia Louise (1)
Clark, Deborah Ann, 1954 (1)
Clark, Deborah Louise, 1950 (1)
Cook, Kathy L. (1)
Cooley, Sally Joan (1)
Cowger, Christina (1)
Crabtree, Kristine L. (1)
Crowder, Cheryl Alison (1)
Dalton, David Andrews (1)
Davidson, Roy M., 1939 (1)
Difazio, Stephen P. (1)
Dileone, Julie A. (1)
Dimalla, Gerard George (1)
Donoso, Teresa G. (1)
Drew, Stephen Ernest (1)
Edwards, Cynthia Ann (1)
Elson, Joseph Earl (1)
Englander, Carol Marcus (1)
Falconi, Cesar E. (1)
Flota, James Ernest (1)
Fredricks, Nancy Ann (1)
Gaudreault, Suzanne M. (1)
Gecy, Jeanne Leslie (1)
Goldenberg, Douglas M. (1)
Goldfarb, Barry (1)
Gomez Navarrete, Gladys (1)
Goodell, Jody Jellison (1)
Goodridge, Jennifer M. (1)
Gottlieb, Leslie D., 1936 (1)
Grubisha, Lisa C. (1)
Guilford, Roger Kirby (1)
Hagiwara, Yuka (1)
Hamamura, Natsuko (1)
Hamm, Philip B. (1)
Harris, Raymond Gene (1)
Hasselbach, Linda M. (1)
Hennon, Paul E. (1)
Henry, Eric Charles (1)
Holah, Jennifer C. (1)
Honda, Sandra (1)
Humpert, Andrea J. (1)
Hural, Kirsten (1)
Hussain, Shaukat (1)
Imper, David Kimberly (1)
Jasalavich, Claudia Ann (1)
Jia, Yibing (1)
Jochimsen, Kenneth N. (1)
Johnson, Earl Ray (1)
Johnson, Kenneth Bjorn (1)
Joyal, Elaine (1)
Julian, Larry L. (1)
Kaltwasser, Robert George (1)
Karentz, Deneb (1)
Kaye, Thomas N. (1)
Kee, Saik Chuan (1)
Keller, Karen E. (1)
Kerle, Elizabeth A. (1)
Keys, Steven Charles (1)
Kim, Kyoung Hee, 1966 (1)
Kimball, Shannon M. (1)
Kirkland, Marjorie Lynn (1)
Knott, Elizabeth A. (1)
Koocheki, Hormozdyar Khodadad (1)
Laird, Peter Paul (1)
Lantz, Lisa E. (1)
Larew, Hiram, 1953 (1)
Lee, Chun Shu (1)
Leuthner, Shirley Mae (1)
Lightfoot, Richard (Richard Thomas), 1958 (1)
Liu, Marlene Mei Yu (1)
Lolas, Mauricio (1)
Lu, Shu Fen (1)
Lueck, Dennis (1)
Lund, Walter Thomas (1)
Lundberg, Chris H. (1)
Lusk Newman, Demaris E. (1)
Lyons, Alan Robert (1)
Magee, Teresa K. (1)
Malvick, Dean K. (1)
Mansfield, Michael Andrews (1)
Maret, Mary P. (1)
Marquis, Robert John (1)
Marsden, Katherine E. (1)
Mayer, Kara Hempy (1)
Mccrae, Roberta Ellen (1)
Mcdade, Mary Helen (1)
Mcgraw, Anne Cressey (1)
Mckenna, John Michael (1)
Mckewan, Jeanette Anne (1)
Mcmorran, Jeffrey P. (1)
Mcneil, Robert Curlan (1)
Meinke, Robert James (1)
Merrifield, Kathryn J. (1)
Messinger, Wes (1)
Meyer, Julie (Julie Rae) (1)
Mitman, Grant Gregory (1)
Mpunami, Anatolia (1)
Nelson, Mark E. (1)
Nitsos, Ronald Eugene (1)
Nuclo, Raymond L. (1)
O'flaherty, Larrance Michael (1)
O'flaherty, Mary Louise (1)
Pack, Paul Eugene (1)
Parks, Robin L. (1)
Patty, Frank Alexander (1)
Peck, Jerilynn E. (1)
Peterman, Jeffrey J. (1)
Pfleeger, Thomas G. (1)
Pires, Maria Joaquina Pinheiro (1)
Pittam, Sherry K. (1)
Plocher, Milton David (1)
Ponzetti, Jeanne M. (1)
Postman, Joseph D. (1)
Reynolds, Keith M. (1)
Ried, Jeffrey L. (1)
Roberts, Kimberly A. (1)
Roberts, Mary Ann (1)
Rosso, Pablo H. (1)
Ruttum, Joanne C. (1)
Schisler, David Albert (1)
Seliskar, Denise M. (1)
Sen, Arun Kumar (1)
Sexton, Camille Marie (1)
Seyer, Susan C. (1)
Shelly, J. Stephen (1)
Sherman, Robert James (1)
Shufelt, Eileen Marie (1)
Smith, Elaine D. (1)
Smith, Muriel K. (1)
Snow, Billy Douglas (1)
Sontirat, Pattana (1)
Staver, Michael J. (1)
Sumner, William T. (1)
Sun, Jin Hua (1)
Taylor, Susannah M. (1)
Thomann, Estela B. (1)
Thompson, Dennis Dean (1)
Tidball, Carolyn Jean (1)
Tkacz, Borys M. (1)
Trail, Frances (1)
Traut, Bibit Halliday (1)
Trummer, Loreen M. (1)
Tuininga, Amy R. (1)
Vaughan, Edward Kemp (1)
Walter, Michael H. (1)
Watson, Thomas Ray (1)
Whitaker, William Carey (1)
Wilson, Mary Loverna (1)
Wittig, Hans P. P. (1)
Wright, Carolyn E. (1)
Xu, Ling, 1963 (1)
Yoder, Barbara J. (1)
Yoon, Elizabeth S. (1)
Zahora, Andrew Roy (1)
Zehsazian, Hassan (1)
Zeigler, Robert S. (1)
Date
1979 (9)
1986 (9)
1987 (9)
1994 (9)
1977 (8)
1980 (8)
1982 (8)
1965 (7)
1983 (7)
1984 (7)
1995 (7)
1978 (6)
1981 (6)
1985 (6)
1996 (6)
1997 (6)
1998 (6)
1968 (5)
1975 (5)
1976 (5)
1990 (5)
1999 (5)
1966 (4)
1993 (4)
1963 (3)
1969 (3)
1989 (3)
1991 (3)
1992 (3)
2001 (3)
2004 (3)
1932 (2)
1964 (2)
1967 (2)
1988 (2)
1930 (1)
1931 (1)
2000 (1)
2003 (1)
Decade
1930-1939 (4)
1960-1969 (26)
1970-1979 (33)
1980-1989 (65)
1990-1999 (54)
2000-2009 (8)
Degree Field
Botany and Plant Pathology (137)
Botany (50)
Plant Pathology (3)
Degree Level
Master's (190)
Degree Name
Master of Science (M.S.) (181)
Master of Arts (M.A.) (9)
File Format
application/pdf (3)
Language
English [eng] (190)
Non-Academic Affiliation
Oregon State University. Graduate School (190)
Peer Reviewed
No (190)
Resource Type
Masters Thesis (190)
Rights Statement
Copyright Not Evaluated (190)
Subject
Douglas fir -- Diseases and pests (4)
Plant viruses (4)
Potatoes -- Diseases and pests (4)
Beans -- Diseases and pests (3)
Bunt (Disease of wheat) (3)
Douglas fir (3)
Onions -- Diseases and pests (3)
Verticillium dahliae (3)
Wood-decaying fungi (3)
Acremonium (2)
Agrobacterium radiobacter (2)
Anisogramma anomala (2)
Botany -- Embryology (2)
Botrytis cinerea -- Biological control (2)
Crown-gall disease (2)
Douglas fir -- Diseases and pests -- Oregon (2)
Fungicides (2)
Lilies -- Diseases and pests (2)
Mosaic diseases (2)
Nematocides (2)
Nitrogen -- Fixation (2)
Phytopathogenic fungi (2)
Plant communities (2)
Plant ecology (2)
Powdery mildew diseases (2)
Pseudomonas infections (2)
Puccinia striiformis (2)
Raspberries -- Diseases and pests (2)
Rhizosphere (2)
Root rots (2)
Roses -- Diseases and pests (2)
Tall fescue -- Diseases and pests (2)
Virus diseases of plants (2)
Wheat -- Breeding (2)
Wheat -- Disease and pest resistance -- Genetic aspects (2)
Afforestation -- Oregon -- Mary's Peak Region (1)
Agaves -- Diseases and pests (1)
Agglutinins (1)
Agrobacterium tumefaciens (1)
Algae -- Cultures and culture media (1)
Algae -- Pacific Coast (Or.) (1)
Alien plants (1)
Aphididae as carriers of disease (1)
Apple blue mold -- Biological control -- Oregon -- Corvallis (1)
Apples -- Diseases and pests (1)
Apples -- Diseases and pests -- Control (1)
Apples -- Postharvest diseases and injuries -- Biological control -- Oregon -- Corvallis (1)
Apples -- Rootstocks (1)
Armillaria root rot (1)
Ascomycetes -- Oregon -- Classification (1)
Ascospores (1)
Astragalus (Plants) -- Oregon (1)
Astragalus (Plants) -- Washington (State) -- Olympic Mountains (1)
Azotobacter (1)
Bacteria -- Metabolism (1)
Basidiomycetes (1)
Bean mosaic virus (1)
Beans -- Disease and pest resistance (1)
Beans -- Diseases and pests -- Control (1)
Beet yellows -- Transmission (1)
Benthos (1)
Biotic communities -- Oregon (1)
Boletaceae -- Classification (1)
Boletaceae -- Molecular genetics (1)
Botany -- Alaska -- Aniakchak, Mount (1)
Botany -- Washington (State) -- Mount Tolman Area (1)
Botrytis (1)
Botrytis cinerea (1)
Botrytis cinerea -- Biological control -- Oregon -- Corvallis (1)
Botrytis cinerea -- Control (1)
Brown algae (1)
Brown algae -- Diseases and pests (1)
Brown rot of fruit (1)
Bryophytes -- Ecology -- Oregon (1)
Calochortus -- Varieties (1)
Cheatgrass brome -- Control -- Oregon, Eastern (1)
Cheatgrass brome -- Seeds -- Oregon, Eastern (1)
Cherry -- Diseases and pests (1)
Chloroform -- Biodegradation (1)
Christmas trees (1)
Corn -- Embryos (1)
Corn -- Genetics (1)
Corn -- Molecular genetics (1)
Corn -- Seeds (1)
Corydalis -- Ecology (1)
Corynebacterium sepedonicum -- Effect of water levels on (1)
Crater Lake National Park (Or.) (1)
Cucumber mosaic virus (1)
Cutover lands -- Oregon -- Mary's Peak (1)
Cytokinins (1)
Defoliation -- Oregon, Eastern (1)
Diatoms -- Oregon -- Yaquina Bay (1)
Diatoms -- Oregon -- Yaquina River Estuary (1)
Dimethyl sulphoxide (1)
Discomycetes -- Classification (1)
Dwarf mistletoes -- Dispersal -- Alaska -- Computer simulation (1)
Eastern filbert blight (1)
Ecosystem management -- Oregon (1)
Elytroderma deformans (1)
Endemic plants (1)
Endothia parasitica (1)
Epiphytes -- Harvesting -- Environmental aspects (1)
Epiphytic lichens -- Ecophysiology (1)
Erwinia amylovora (1)
Ethylene (1)
Eucephalus (1)
Fagaceae (1)
Ferns -- North America -- Classification (1)
Fir -- Growth (1)
Fire ecology -- Oregon -- Willamette River Valley (1)
Fire-blight (1)
Forest dynamics -- Oregon (1)
Forest ecology (1)
Forest ecology -- Oregon -- Crater Lake National Park (1)
Forest litter -- Northwest, Pacific (1)
Forest soils (1)
Fungi in agriculture (1)
Fungicides -- Toxicology (1)
Fusarium (1)
Galls (Botany) (1)
Geotropism (1)
Geraniums -- Diseases and pests (1)
Gibberellins (1)
Grapes -- Diseases and pests (1)
Grassland ecology -- Oregon -- Willamette River Valley (1)
Grassland plants -- Ecology -- Oregon -- Willamette River Valley (1)
Grassland plants -- Effect of fires on -- Oregon -- Willamette River Valley (1)
Grazing (1)
Hazelnuts -- Diseases and pests (1)
Herbicide resistance (1)
Herbicide resistance -- Idaho (1)
Heterodera (1)
Hops -- Disease and pest resistance (1)
Hops -- Inoculation (1)
Humidity (1)
Hydrogenase (1)
Immunoenzyme technique (1)
Insects as carriers of plant disease (1)
Invasive plants -- Dispersal -- Oregon -- Willamette River Valley (1)
Invasive plants -- Propagation -- Oregon -- Willamette River Valley (1)
Iris (Plant) -- Diseases and pests (1)
Kidney bean (1)
Kidney bean -- Diseases and pests -- Biological control (1)
Kidney bean -- Diseases and pests -- Oregon (1)
Larches -- Alaska (1)
Lichens -- Geographical distribution (1)
Lichens -- Morphology (1)
Lichens -- Oregon (1)
Lichens -- Oregon -- Classification (1)
Liliaceae -- Northwest, Pacific (1)
Lilies (1)
Lilies -- Disease-free stock (1)
Lilies -- Propagation -- In vitro (1)
Lupines -- Oregon -- Crater Lake National Forest -- Ecology (1)
Marsh plants (1)
Metabolites (1)
Microbial herbicides (1)
Moniliales (1)
Monilinia fructicola -- Biological control (1)
Monooxygenases (1)
Mosses -- Harvesting -- Environmental aspects (1)
Mycorrhizal fungi -- Ecology -- Northwest, Pacific (1)
Mycorrhizas (1)
Nematoda (1)
Nematode diseases of plants (1)
Nickel enzymes (1)
Nurseries (Horticulture) (1)
Old growth forests -- Oregon -- Cascade Range (1)
Oxidation, Physiological (1)
Ozone -- Environmental aspects (1)
Pacific yew -- Oregon (1)
Parmeliaceae -- Oregon -- Classification (1)
Pathogenic fungi -- Oregon (1)
Pear -- Diseases and pests -- Biological control (1)
Pear -- Postharvest diseases and injuries -- Biological control (1)
Peas -- Disease and pest resistance -- Genetic aspects (1)
Peas -- Diseases and pests (1)
Pecan -- Diseases and pests (1)
Peppermint -- Diseases and pests -- Control (1)
Peppermint -- Diseases and pests -- Oregon (1)
Perideridia -- Growth (1)
Periphyton -- Composition (1)
Periphyton -- Ecophysiology (1)
Periphyton -- Nutrition (1)
Peroxidase (1)
Pesticides -- Environmental aspects (1)
Phellinus -- Genetics (1)
Phellinus -- Oregon (1)
Photosynthesis (1)
Phytopathogenic bacteria (1)
Phytopathogenic fungi -- Development (1)
Phytophthera megasperma (1)
Phytophthora (1)
Picabo milkvetch -- Snake River Plain (Idaho and Or.) -- Genetics (1)
Pine -- Diseases and pests (1)
Pine -- Ecology (1)
Plant communities -- Oregon -- Crater Lake National Park (1)
Plant communities -- Oregon -- Marys Peak (1)
Plant communities -- Utah -- Bear River Migratory Bird Refuge (Box Elder County) (1)
Plant competition -- Oregon -- Willamette River Valley (1)
Plant nematodes (1)
Plant nematodes -- Oregon (1)
Plant physiology (1)
Plant population genetics -- Snake River Plain (Idaho and Or.) (1)
Plant succession (1)
Plant viruses -- Genetics (1)
Plant viruses -- Transmission (1)
Plant-fungi relationships (1)
Plant-fungi relationships -- Oregon (1)
Plant-soil relationships (1)
Plants -- Absorption of water (1)
Plants -- Disease and pest resistance (1)
Plants -- Effect of herbicides on -- Idaho (1)
Plants, Effect of ozone on (1)
Plants, Effect of potassium on (1)
Ponderosa pine (1)
Ponderosa pine -- Diseases and pests (1)
Port Orford cedar (1)
Potato ring rot -- Microbiology (1)
Potato-rot -- Control (1)
Potatoes -- Disease and pest resistance (1)
Potatoes -- Diseases and pests -- Biological control (1)
Potatoes -- Diseases and pests -- Oregon (1)
Potatoes -- Effect of stress on (1)
Potatoes -- Idaho (1)
Potatoes -- Irrigation (1)
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