This community contains the theses and dissertations of the South Dakota State University, Department of Agronomy, Horticulture, and Plant Science.
Due to copyright restrictions, the collection contains both open access and university access theses and dissertations. University access items are only available to SDSU users, and on-campus visitors. Non-SDSU users wishing to access restricted materials may request items through their institution’s interlibrary loan services.

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ETDS from 1976

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Purine-Thiamine Anabolism During Cellular Morphogenesis in Myxococcus Xanthus, Wen-Cherng Tsai

ETDS from 1975

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Reliability of Laboratory Germination and Tetrazolium Tests in Predicting Soil Emergence of Five Grasses Native to South Dakota, William H. Bohl

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Soil Salinity, Sodium Levels, and Corn Production as Affected by Rates of Applied Beef Wastes, James L. Halbeisen

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The Influence of Soils and Vegetation on LANDSAT Spectral Signatures, Gary Dean Lemme

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Cytopathology of Barley and Corn Leaf Tissue Infected With the ND18 Strain of Barley Stripe Mosaic Virus, Charles R. McMullen

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A Comparative Study of Ribonuclease From Two Winter Barley Cultivars Based Upon Separation, Purification and Partial Characterization of RNA-Degrading Enzymes, Raymond Sze-Chung Wong

ETDS from 1974

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Corixidae (Water Boatmen) Abundance and Contribution to Littoral Zone Fish Forage in Lake Poinsett, South Dakota, Richard Lee Applegate

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Volatility, Drift and Phytotoxicity of Dicamba to Corn When Applied with Additives, Bart A. Brinkman

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The Abundance and Seasonal Distribution of Tabanidae (diptera) in Spink County, South Dakota, with a Study of Geographic Variation in Chrysops Aestuans Wulp, Philippe Earl Cobb

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Color and Light Intensity Preferences of Four Species of Alate Cereal Aphids, Donald A. Dickmann

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Improving Water Use Efficiency of Smooth Bromegrass by Selecting for Regrowth, Delmer F. Gross

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The Effect of Simulated Hail Damage on Oats, David Gaylord Hanson

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The Application of ERTS-1 Multispectral Imagery for Crop Resource Evaluation and Inventory, James Lester Heilman

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Influence of Growth Stage, Stubble Height, and Cutting Frequency on the Carbohydrate Reserves and Yield of Switchgrass, Richard A. Lockert

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Biological Control of Musk Thistle, Carduus Nutans, in South Dakota, Dennis Morihara

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The Effect of Subsurface Layered Trifluralin and Dicamba on Field Bindweed, Winter Wheat, and Corn, William Ben O'Neal

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Quantitative Gene Action and Interrelationships of Protein Content With Some Metrical Traits of Oats, Harbans Singh Sraon

ETDS from 1973

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Reflectance Measurements for the Detection and Mapping of soil Limitations, Lawrence A. Benson

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Evaluation of Methods of Reducing Seed Dormancy in Switchgrass, Indiangrass, and Big Bluestem, Keith L. Byers

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Biology and Ecology of False Wireworms in South Dakota (Coleoptera: Tenebrionidae), Carrol Otto Calkins

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Inheritance of Protein Content and Rust Resistance and Their Associations with Selected Agronomic Traits in Wheat Crosses Involving SD69103 (Hand, CI15921), a Hard Red Winter Wheat, Craig Richard Cowley

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Pathogenicity, Synergism, and Control of Xanthomonas Translucens and Septoria Avenae f. sp. Triticea on Spring Wheat in South Dakota, Bruce Lloyd Davidson

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Physiological Maturity of Grain Sorghum in South Dakota, Leroy E. Johnke

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Evaluation of Toxicity of a Carbamate and an Organophosphate Insecticide to Adult and Larval Western Corn Rootworm, Diabrotica Virgifera Leconte, Mark D. Lyle

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A Survey of the Insect Fauna of Canada Thistle, Cirsium Arvense, in South Dakota; and Studies Relating to Biological Control by Ceutorhynchus Litura and Cassida Rubiginose, Lance Jerome Nearman

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The Vascular Vegetation of Northeastern Day County in South Dakota, R. Evelyn Roberts

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Growth, Development, and Plant Temperature Characteristics of Oats Under Water Stress, Bikkar S. Sandhu

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Biology of the Flea Beetle, Altica Carduorum Guer. (Coleoptera: Chrysomelidae) on Canada Thistle, Cirsium Arvense (L.) Scop., in South Dakota, Burton Danis Schaber

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Solodized Solonetz Soil Core Model Studies of Reclamation, Dennis G. Shannon

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The Role of Nematodes in a South Dakota Grassland Ecosystem, James D. Smolik

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A Study of Energy and Water Transfer in Irrigated and Nonirrigated Sorghum, Loyd Raymond Stone

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In Vitro Digestibility of Diallel and Polycross Progenies of Intermediate Wheatgrass, Ronald Theodore Thaden

ETDS from 1972

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Bionomics of Mallophaga of Sharp-Tailed Grouse in South Dakota, Major L. Boddicker

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Ecological Succession Along Missouri River Reservoirs as it Relates to Development of Forest Environment for Recreational Use, Howard G. Cady

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Grain Sorghum Canopy Temperature as a Function of Meteorological Conditions, Charles Gregg Carlson

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The Effects of Identified Student Characteristics on Their Understanding of Science, Patricia Mutch Cheeseman

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The Biology of Geomylichus Gaomydis n. sp. (Acari: Listrophoridae) From the Plains Pocket Gopher, Geomys b. Bursarius (SHAW), Charles Campbell Coffman

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Effect of Planting Method and Seeding Rate on the Establishment of Alfalfa Under Dryland and Irrigation, Lloyd H. Hansen

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Recognizability and Reproducibility of Airphoto Interpreted Landscape Units, Robert Dean Heil

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Physiological Regulation of Cyclic Flowering in Flax, Aurora Salazar Hovland

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Evidence for the Presence of Two Nucleases in Barley Tissue and the Influence of Genotype on Their Properties, Clay G. Johnson

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An Expression of Hybrid Vigor and a Characterization of Callus Tissue of Zea mays L., Judy Winkler Johnson

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Estimation of Plant S and ZN Concentration by Soil Test Correlation, Douglas Darrel Koth

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Taxonomy of the Agropyron Intermedium and Agropyron Trichophorum Complex, Emmanuel Kidane Mariam

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Developmental Analyses of Biochemical Fuel Cells, Roderick James McNeil

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Nitrate Movement in Freezing or Frozen Soils, Donald G. Moore

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Soybean Row Spacings, Plant Populations and Yield Components, Erol Oral

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Tolerance Studies to Wheat Streak Mosaic Virus in Winter and Spring Wheats, Fazal Rahman

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The Effect of Allopurinol (4-Hydroxypyrazolo(3,4-d) Pyrimidine) on Uric Acrid Metabolism in Differential Grasshoppers (Melanoplus Differentialis) and Armyworms (Pseudoletia Unipuncta), Henry C. Schroeder, Jr.

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Germination and Vegetative Propagation of Native Prairie Forbs, James T. Sorensen

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Vegetative Propagation of Green Ash by Softwood Cuttings, Wesley Alvin Urdahl

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Estimation of N Availability and NO3-N Movement in Soils, Raymond Charles Ward

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Intermediate Wheatgrass Seed Production Responses to Fertilizers and Cultural Practices, James Bernard Weber

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A Cytogenetical Study of a Hexaploid Agrotricum Immune from Wheat Streak Mosaic Virus, Raymond Sze-Chung Wong

ETDS from 1971

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An Evaluation by Winter Wheat of Phosphorus Carriers and the Effect of Different Carriers on Three Phosphorus Availability Indices, Charles C. Biggar

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Effects of Applied Nitrogen and Phosphorus on Native Grasslands in the Northern Great Plains, Gregory Kirk Grenz

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Irregation Automation: A Systems Approach, Earl B. Hoekman

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An Ecological Study of Coleoptera Succession in Bovine Manure with Emphasis on Natural Enemies of the Face Fly (Musca autumnalis De Geer) in Eastcentral South Dakota, Howard Kessler

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Bionomics to Two Greenbug Biotypes in Response to Low Temperatures on Winter Wheat, John E. Kvenberg

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Embryogeny in Haemmanthus Albiflos Jacquin, Ping-Fai David Lo

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Field Population and Flight Activity of Three Hippodamia Species in Eastern South Dakota, Gene Allen Olson

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An Evaluation of Variation in Soil Test Results Caused by Sampling Methods and Individual Samplers, Terensio Kokorom Opio

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Plant Analysis of Spring Small Grains at Different Stages of Growth, James Henry Pfeifer

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Herbicide Residue and Weed Control in Switchgrass, Charles Nicholas Smith Jr.

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The Wooded Soils of Southeast South Dakota : Their Morphology and Genesis, Ronald A. Torkelson

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Test of Various Insecticides as Systemics in Wheat Upon the Army Cutworm, Lavarre Delancy Uhlken

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Horizontal Resistance to Leaf Rust in Spring Wheat, Mayo E. Wetterberg Jr.

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A Two Year Study of Potential Resistance in the Adult Western Corn Rootworm in South Dakota, John M. Wirtz

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The Influence of Various Stress Conditions on Cholinesterase Levels of Cattle Treated with an Organophosphorus Insecticide, Mitchell J. Wrich

ETDS from 1970

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Differential Reaction of Larvae of the Western Corn Rootworm to Certain Species of Gramineae, Terry Fred Branson

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A Chromosome Study of Chlorophytum Elatum, Dennis E. Driscoll

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Root Pulls and Root Ratings as an Analysis of Insecticide Performance in the Control of Corn Rootworms (Coleoptera: Chrysomelidae), James I. Jessen

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A Differential pH Requirement for Extraction of Stable Polyribosomes from Winter Barley in Relation to RNase Activity of the Tissue, Clay G. Johnson

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The Effect of 2,4-D and Atrazine on the Growth Rate of a Mixed Algae Culture, John P. King

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Light and Color Responses of Apterous Cereal Aphids, Eugene Leslie Miller

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Enhancement of Foliar Penetration and Herbicide Activity by Oils, James F. Peacock

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The Effects of 2-Chloroethylphosphonic Acid on Bud The Effects of 2-Chloroethylphosphonic Acid on Bud Vascularization in Sorghum Halapense, L.ascularization in Sorghum Halapense, L., Robert Allen Peterson

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Soluble Proteins and Lipoproteins of Legumes in Relation to Bloat, Loren M. Rommann

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Factors Influencing Asexual Spore Formation by Ceratocystis ULMI, Richard J. Roster

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A Study of Protein Content and its Relationships to Other Phenotypic Characters in Iterspecific Oat Crosses, Leroy A. Spilde

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Effect of Atrazine and its Carriers on the Grain Sorghum Plant, Clair E. Stymiest

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Interseeding as a Grassland improvement Practice in Central South Dakota, Roger P. Wickstrom

ETDS from 1969

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Breeding for Resistance to Wheat Streak Mosaic Virus, Charles Lee Lay

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The Production and Behavior of Callus Tissue from Sorghum Vulgare, Vance J. Masteller

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A Study of the Relationship Between Ceratocystis Ulmi and Elm Callus In Vitro, Charles R. McMullen

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A Study of Some Physical and Chemical Properties of Hard Red Spring and Hard Red Winter Wheat in South Dakota, Richard A. Pence

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Some Field and Laboratory Observations on Morchella, Reed Sanderson

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Tylenchorhynchus Nudus and Other Nematodes Associated with Turf in South Dakota, James D. Smolik

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Agaricus Campestris and Sporocarp Initiation, Stephen J. Wallner

ETDS from 1968

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Effects of Photoperiods and Temperatures Upon Early Growth of Tall Fescue & Ladino Clover at Various Lengths of Growing Period, Chavalit Chalothorn

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Genetic Localization of Chlorophyll Mutant Genes in Barley, Sheria Chaio Chaio-Tong Chang

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Some Factors Influencing Fungicide Control of Leaf Rust and Stem Rust of Wheat, Gilbert Eugene Cook

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Drought Resistance of Ponderosa Pine and Eastern Redcedar on central South Dakota Soils, Gerald L. Jensen

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Some Factors Influencing Rates of Parasitism of the Wheat Stem Maggot in South Dakota, Wendell Lee Morrill

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A Three Year Soil Insecticide Control Study on Corn Rootworms (Coleoptera: Chrysomelidae) in South Dakota, Lance J. Nearman

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Tissue Culture of Carrot Leaf on Three Media Using the Growth Regulator Tordon, John O'Connell

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The Influence of Zinc and Tryptophan on Polysome Stability and Growth Response of Corn Seedlings, Anthony Unusa Salami

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Responses of Tall and Semi-dwarf Spring Wheats to Levels of Nitrogen and Moisture Supply, Vanrat Sompaew

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The Reaction of Inbred, Single, Three-way and Four-way Hybrid Corns to Wheat Streak Mosaic Virus and Kernel Red Streak, Josetino B. Tunac

ETDS from 1967

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The Competitive Effects of Wild Buckwheat (Polygonum convolvulus L.) on Spring Wheat (Triticum vulgare L.), James Darrell Arnold