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UKnowledge > Martin-Gatton College of Agriculture, Food and Environment > Plant and Soil Sciences > Theses & Dissertations

Theses and Dissertations--Plant and Soil Sciences

Theses/dissertations from 2024 2024.

FROM CODE TO CROPS: HARNESSING BIOINFORMATICS AND ARTIFICIAL INTELLIGENCE (AI) IN AGRICULTURAL OMICS , Lakshay Anand

IDENTIFYING PHYSIOLOGICAL, MORPHOLOGICAL, AND GENETIC DRIVERS OF KEY INTERMEDIARY PHENOTYPIC TRAITS ASSOCIATED WITH STALK LODGING RESISTANCE WITHIN GENETICALLY DIVERSE MAIZE GERMPLASM AND SORGHUM , Norbert Bokros

INTERACTIONS BETWEEN MULTIPLE STRESSORS, NANOMATERIALS AND A PATHOGEN, IN CAENORHABDITIS ELEGANS , Jarad Cochran

SURVEYS, FIELD STUDIES, AND LABORATORY INCUBATION EXPERIMENTS TO IMPROVE ALFALFA PRODUCTION IN THE MID-SOUTH , William Fleming

EVALUATION OF THE MANAGEMENT OF ITALIAN RYEGRASS (LOLIUM PERENNE SSP. MULTIFLORUM) USING HARVEST WEED SEED CONTROL AT WINTER WHEAT HARVEST IN KENTUCKY , Hayden Love

EVALUATION OF WINTER CEREAL COVER CROPS ACROSS NITROGEN MANAGEMENT STRATEGIES IN NO-TILL CORN PRODUCTION , Robert Nalley

THE EFFECTS OF POTASSIUM FERTILIZATION REGIME ON HIGH TUNNEL TOMATO PRODUCTION , Sapana Pandey

SILICON FERTILIZATION IN COOL-SEASON TURFGRASSES , Cheng Qian

The roles of mRNA polyadenylation factors in plant growth and development , Lichun Zhou

Theses/Dissertations from 2023 2023

Understanding The Basis for Increased 2,4-D Tolerance in Red Clover (Trifolium pratense): Field Evaluations, Metabolism, and Gene Expression , Lucas Pinheiro de Araujo

MANAGEMENT AND CHARACTERIZATION OF ROOT-KNOT NEMATODE ( MELOIDOGYNE SPP.) IN KENTUCKY HIGH TUNNELS , Victoria Bajek

Nitrogen Behavior in a No-Tillage Agroecosystem Located in the Inner Bluegrass of Kentucky , Alec William Besinger Mr.

Building a Kentucky Baguette: Agronomic Traits, Bread Baking Quality Measurements, and Sensory Evaluation of Modern and Landrace Wheat Cultivars Grown Under Conventional and Organic Nitrogen Management , Bryan Brady

Improving Baking Quality of Soft Red Winter Wheat in Kentucky Through Breeding and Sulfur-Nitrogen Fertility Management , Maria Paula Castellari

Comparison of Botanical Composition Methods and Change Over Time in Kentucky Pastures , Echo Elizabeth Gotsick

EFFECTS OF FUNGICIDE PROGRAMS AND LOWER LEAF REMOVAL ON WRAPPER LEAF PRODUCTION IN CONNECTICUT BROADLEAF CIGAR WRAPPER TOBACCO , Caleb Haygan Perkins

MULTI-OMIC ANALYSIS OF VEGETATIVE PROPAGATION INDUCED PLANT REJUVENATION IN GRAPEVINES: IMPLICATIONS FOR THE GENERATION OF LOCALLY ADAPTED CULTIVARS USING EPIGENETICS , Tajbir Raihan

LATERAL SPACING OF SUBSURFACE POULTRY LITTER BANDS: EFFECT ON GASEOUS NITROGEN EMISSIONS, NUTRIENT UPTAKE, AND MAIZE YIELD , Jason R. Simmons

Winter Rye ( Secale cereale L.) Management and Production Profitability in Kentucky, and Heritability of Sensory Attributes , Elzbieta Szuleta

MOLECULAR ANALYSIS OF EPIGENETIC MEMORY OF STRESS ESTABLISHMENT AND LONG-TERM MAINTENANCE IN A PERENNIAL WOODY PLANT , Jia Wen Tan

EVALUATION OF CHEMICAL CONTROL OPTIONS, ENVIRONMENTAL FACTORS, AND MANAGEMENT PRACTICES ASSOCIATED WITH ANGULAR LEAF SPOT ( PSEUDOMONAS SYRINGAE PV. TABACI ) , Andrea Brooke Webb

Species-specific microsymbiont discrimination mediated by a Medicago receptor kinase , Xiaocheng Yu

Theses/Dissertations from 2022 2022

Understanding the cellular and physiological mechanisms of fertilization and early-stage seed development , Mohammad Foteh Ali

OPTIMIZING NITROGEN MANAGEMENT IN WINTER WHEAT PRODUCTION SYSTEMS FOR IMPROVED BREAD BAKING QUALITY , Ammar Sadiq Mahdi Al Zubade

Remote Sensing for Quantifying C3 and C4 Grass Ratios in Pastures , Jordyn Alyssa Bush

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Home > Agronomy and Horticulture > Dissertations, Theses, and Student Research

Agronomy and Horticulture, Department of

Department of agronomy and horticulture: dissertations, theses, and student research.

Establishment of Wildflower Islands to Enhance Roadside Health, Ecological Value, and Aesthetics , Jackson Ebbers

Triticale as a Source of Resistance to Wheat Streak Mosaic Virus and Triticum Mosaic Virus , Marcos Winicius Goncalves de Souza

Using Annual Forages to Replace Declining Cool-Season Grass Pasture Availability , Jonathon Matthew Jenkins

Public Horticulture: Process and Design of the Lincoln Botanical Garden , Brad Kindler

In-field Optimization of Soil Water Parameters for Irrigation Scheduling , Ishani Lal

Evaluating a recision Sprayer for Detecting Weeds and Spraying Herbicides in Real Time (Spot Spray) for Weed Management in Corn and Soybean , Adam Ertic Leise

Identifying Genes Linked to Variation in Metabolic and Whole Plant Phenotypes using Data from Genome Resequencing, Transcriptomics, and Metabolic Profiling of a Field-Grown Maize Diversity Panel , Ramesh Kanna Mathivanan

On-farm Nitrogen and Irrigation Management Strategies to Protect Groundwater Quality in the Bazile Groundwater Management Area , Arshdeep Singh

Assessing Even Flat-Fan Nozzles for Spot Spray Herbicide Applications , Thiago H. Vitti

Unraveling the Tapestry of Indigenous Maize in North America: A Case Study of Pawnee Ancestral Maize , Kahheetah Barnoskie

Optimizing Crop Productivity and Fertility Practices in Intermediate Wheatgrass , Roberta Bianchin Rebesquini

Evaluating Drill Interseeded Cover Crop Establishment and Nitrogen Impact in Irrigated Corn , Victor de Sousa Ferreira

Impact of Nitrogen Availability on the Accumulation of Vegetative Lipids in Sorghum , Leticia Felicio Pasqualino

The Development and Evolution of the Soil Health Nutrient Tool (AKA Haney Test) after Ten Years of Implementation in a Commercial Agricultural Laboratory , Lance Michael Gunderson

Method Developments to Identify Loci and Selection Patterns Associated with Genotype by Environment Interactions in Soybean , Mary M. Happ

Genomic Selection for Yield and Seed Composition Stability in an Applied Soybean Breeding Program , Benjamin Harms

Management of Atrazine, Glyphosate, and ALS-Inhibiting Herbicide-Resistant Palmer Amaranth ( Amaranthus palmeri S. Watson) in Herbicide-Resistant and Food Garde White Field Corn , Ramandeep Kaur

Plasticity of Sorghum Biomass and Inflorescence Traits in Response to Nitrogen Application , Kyle M. Linders

High Throughput Phenotyping: Field Based Triticale Breeding and Educational Resource Impact , Catherine Kay Mick

Vulnerabilities of Greater Prairie Chicken and Tier 1 At-risk Species in Nebraska Caused by Grassland Transition to Woody Dominance , Robert Peterson

Experimentation on Nebraska Farms for Sustaining Soil Health Management , Fernanda Souza Krupek

Evaluating Planting Green and Herbicides for Integrated Weed Management and Their Effect on Soil Properties in Corn and Soybean in Nebraska , Trey Stephens

Improving Yield and Profit in Smallholder Oil Palm Fields through Better Agronomy , Hendra Sugianto

Evaluation of Vegetative Indices to Determine Canopy Ground Cover for Winter Survival and Hybrid Necrosis in Winter Wheat , Micheal Young

Challenges and Strategies in Weed and Herbicide Management for Industrial Hemp , Milos Zaric

Characterization and Selection of Hop Cultivars Adapted to Nebraska , Kristina Alas

Water Quality, Carrier Volume and Droplet Size Effects on Herbicide Efficacy and Drift Potential , Barbara Houston

Optimization of Nozzle, Application Height, and Speed for UASS Pesticide Applications , Trenton Houston

Deciphering the Genetic Architecture of Key Female Floral Traits for Hybrid Wheat Seed Production , Juan Jimenez

Evaluating Traits Influencing Hybrid Wheat Seed Production Using a Double Haploid Population Derived from Freeman x Camelot , Emre Karahan

RECOMBINATION HOTSPOTS IN SOYBEAN [GLYCINE MAX (L.) MERR.] , Samantha J. McConaughy

MYCORRHIZAE IN MAIZE ( Zea mays L.) CROPPING SYSTEMS RESPOND DIFFERENTLY TO NITROGEN FERTILIZATION UNDER INCREASING CROP ROTATIONAL DIVERSITY , Morgan McPherson

Exploration of Genes Controlling Grain Yield Heterosis in Hybrid Wheat ( Triticum aestivum L.) Utilizing 3ʹ RNA Sequencing , Nichole Miller

Regional Plant Community Differences in the Nebraska Sandhills , Travis Millikan

Nitrification Inhibitor, Nitrogen Source, and Herbicide Effects on Soil Nitrogen Transformations and Corn Yield , William Neels

Addressing Challenges of Dryland Production of Sunflowers and Corn in the Semi-Arid High Plains of Nebraska , Zhan Orazov

Cattle Diet Selection During the Growing Season on Upland Sandhills Rangelands , Alejandro Orozco-Lopez

Winter Cover Crop Impacts on Weed Dynamics in Eastern and Central Nebraska , Elizabeth Ann Oys

CHARACTERIZATION OF SALT AND DROUGHT TOLERANCE IN SUNFLOWER (Helianthus annuus L.) , Sevgi Saylak

Dicamba tank mixtures and formulations and their effects on sensitive crops during cleanout procedures , Vinicius Velho

The Effect of Anionic Surfactants on Herbicide Mixtures and Solutions , Ely Anderson

Does Integrating Crops with Livestock Production Impact Soil Properties and Crop Production? , Lindsey Anderson

Effects of Micro-rates of 2,4-D and Dicamba on Lettuce and Pumpkin in Nebraska , Xinzheng Chen

Exploration of the Sludge Biodiesel Pathway , Zachary Christman

Techniques to Improve the Volume, Texture and Nutritional Quality of Gluten-free Bread , Zachary Christman

Using Thermal Imaging to Measure Water Stress in Creeping Bentgrass Putting Greens , Joe Foral Jr.

The influence of adjuvants on physical properties, droplet-size, and efficacy of glufosinate and dicamba plus glyphosate solutions , Estefania Gomiero Polli

Quantifying the Combined Effect of Abiotic Factors on the Decomposition of Organic Matter in Semiarid Grassland Soils , Elnazsadat Hosseiniaghdam

Livestock Grazing Impacts on Crop and Soil Responses for Two Cropping Systems , Alyssa Kuhn

American Burying Beetle, Plant Richness, and Soil Property Responses to Collapse of Juniperus virginiana Woodlands with Fire , Alison Ludwig

Evaluating Evapotranspiration and Management of Glyphosate-Resistant Palmer amaranth ( Amaranthus palmeri S. Watson) , Jasmine Mausbach

Management of Glyphosate-Resistant Palmer amaranth ( Amaranthus palmeri S. Watson) in Dicamba/Glyphosate-Resistant Soybean , Shawn McDonald

MAIZE NITROGEN MANAGEMENT USING REACTIVE SENSOR AND PROACTIVE MAIZE-N MODEL VIA FERTIGATION , Mohammed A. Naser

Formation of B Horizons in Engineered Putting Green Soils , Glen Obear

PRODUCTION, EVALUATION, AND SELECTION OF ELITE QUALITY PROTEIN POPCORN (QPP) HYBRIDS , Leandra Parsons

A Method for Visualizing Water Flow through Modified Root Zones , Dallas M. Williams

Phenotypic Plasticity of Diverse Sorghum Varieties in Response to Nitrogen Deficit Stress , Mackenzie Zwiener

Reaction of Tepary Beans to Eight Virulent Races of the Rust Pathogen that Overcomes All Known Common Bean Rust Resistance Genes , Santos Barrera Lemus, Prabin Tamang, Carlos A. Urrea, and Marcial A. Pastor-Corrales

Herbicide injury from dicamba and 2,4-D: How much is too much in lettuce? , Xinzheng Chen, Amit J. Jhala, Stevan Z. Knezevic, and Samuel E. Wortman

Evaluating Opportunities for Integrated Crop Livestock Systems in Eastern Nebraska , Elizabeth Kay Christenson

A Review of Technologies for Malt Flour and Sourdough from Brewery Spent Grain , Zachary Christman

Growing Torula Yeast ( Candida utilis ) for Food Grade Fatty Acids , Zachary Christman

Nutritional Strategies for Nurses in a Fast Paced Occupation , Zachary Christman

Wastewater Treatment Fatty Acids for Biodiesel Production , Zachary Christman

CRITICAL PERIOD OF PALMER AMARANTH REMOVAL AND EFFECTS OF LATE SEASON HERBICIDE APPLICATIONS ON PALMER AMARANTH SEED PRODUCTION , Jose de Sanctis

Fungicide Resistance: Surveillance, Risk Assessment and Evolution in Two Soil-Borne Pathogens , Nikita Gambhir

Weed Control Efficacy of Bio-Based Sprayable Mulch Films in Specialty Crop Systems , Eliott Gloeb

Influence of burning and grazing management practices on subirrigated Sandhill meadow hay production , Tara M. Harms

Spring Meadow Management Practices: What’s a Rancher to do? , Tara M. Harms, Jerry D. Volesky, and Mitchell B. Stephenson

Evaluating the Impact of Grafting on Local Tomato Production in Nebraska , Raihanah Hassim

Evaluating the Impact of Grafting on Local Tomato Production in Nebraska , Raihanah Hassim, Samuel E. Wortman, Ashley A. Thompson, and Stacy A. Adams

Soybean Response to Water: Trait Identification and Prediction , Shawn Jenkins

Reducing Mowing Requirements in Home Lawn and Golf Course Turfgrass , Mark A. Keck

IMPACT OF AGRICULTURAL LAND USE ON STREAM NITRATE, PHOSPHORUS, AND SEDIMENT CONCENTRATIONS AT THE WATERSHED AND FIELD SCALE , Brittany A. Kirsch

Extreme Fire as a Management Tool to Combat Regime Shifts in the Range of the Endangered American Burying Beetle , Alison K. Ludwig, Daniel R. Uden, and Dirac Twidwell

Buffalograss Diversity Assessment , Collin Marshall

Effects of Char on Nitrogen Management in Agricultural Soils of Semi-arid Western Nebraska , Dinesh Panday

Control of Volunteer Corn in Enlist Corn and Economics of Herbicide Programs for Weed Control in Conventional and Multiple Herbicide-Resistant Soybean Across Nebraska , Adam M. Striegel

Influence of Cover Crop Management Practices on Rainfed Corn Production in Semi-Arid Western Nebraska , Alexandre Tonon Rosa

Effects of Tank Contamination and Impact of Drift-Reducing Agents on Weed Control in Response to Dicamba Applications , Milos Zaric

Effect of Soil-Applied Protoporphyrinogen Oxidase Inhibitor Herbicides on Soybean Seedling Disease , Nicholas J. Arneson

Challenges and Opportunities for Weed Control in Nebraska Popcorn , Ethann R. Barnes

Expression of Multi-Domain Lytic Peptide Genes in Transgenic Plants for Disease Resistance , George Biliarski

Understanding Nitrogen Limitation In Soybean , Nicolas Cafaro La Menza

Herbicide Drift Influence on Amaranthus spp. Herbicide Resistance Evolution , Bruno Canella Vieira

Integrated management of Phytophthora stem and root rot of soybean and the effect of soil-applied herbicides on seedling disease incidence , Vinicius Castelli Garnica

Biomethane Production from Distillery Wastewater , Zachary Christman

Improving the Distribution and Use of Biogas by Conversion to Methanol , Zachary Christman

Introduction to Sorghum Paper Production , Zachary Christman

EFFECTS OF DIFFERENT WATER AND NITROGEN REGIMENS ON YIELD OF WINTER WHEAT PRODUCED IN NEBRASKA , Joseph Emory Davis

Investigating Parental Effects on End-Use Quality in Hard Winter Wheat (Triticum aestivum L.) Hybrids , Anthony Delaney

Dual Biological Control: Characterization of Fungi and Bacteria to Control Granary Weevil and Fungal Pathogens of Stored Grain , Gülçin Ercan

Genome-wide Association Studies in Maize and Sorghum , Preston Hurst

ESTABLISHMENT OF PERENNIAL LEGUMES WITH AN ANNUAL WARM-SEASON GRASS AS A COMPANION CROP , Martina N. La Vallie

New Approaches to Use Genomics, Field Traits, and High-throughput Phenotyping for Gene Discovery in Maize ( Zea mays ) , Zhikai Liang

CANAVALIA AND DOLICHOS EXTRACTS FOR SUSTAINABLE PEST BIOCONTROL AND PLANT NUTRITION IMPROVEMENT IN EL SALVADOR , Carlos Martinez

Evaluation of Stabilized Fertilizer and Crop Canopy Sensors as Next-Generation Nitrogen Management Technologies in Irrigated Corn , Leonardo Mendes Bastos

A Survey of Soil Properties Affecting Vegetation Establishment Along Nebraska Highways , Shad D. Mills

Rust and Viral Mosaic Diseases in Biofuel Switchgrass , Anthony A. Muhle

DNA BARCODING OF PRATYLENCHUS FROM AGROECOSYSTEMS IN THE NORTHERN GREAT PLAINS OF NORTH AMERICA , Mehmet Ozbayrak

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Arnet, Kevin Broc. "Cover crops in no-tillage crop rotations in eastern and western Kansas." Thesis, Manhattan, Kan. : Kansas State University, 2010. http://hdl.handle.net/2097/4086.

Hurley, Shannon. "Oats as a Companion Crop for Alfalfa: Establishment Methods." TopSCHOLAR®, 1994. http://digitalcommons.wku.edu/theses/971.

Okito, Pungu. "Origins Of The Y Genome In Elymus." DigitalCommons@USU, 2008. https://digitalcommons.usu.edu/etd/95.

Lueck, Andrew Bruce. "Environmental Conditions, Variety, and Application Timing Influence on S-Metolachlor Sugarbeet Crop Safety." Thesis, North Dakota State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10269346.

Glyphosate-resistant weeds in North Dakota and Minnesota sugarbeet growing regions have necessitated research on S-metolachlor. S-metolachlor can be applied early-postemergence in sugarbeet but has not been labeled preemergence as reductions in sugarbeet safety have been observed. Field and growth chamber experiments were conducted to determine crop safety from S-metolachlor applied preemergence. S-metolachlor readily bonds to soil clay and organic matter. High clay and organic matter soils buffer S-metolachlor from soil solution and increase crop safety. Sugarbeet emergence was affected by soil series, temperature, and soil water, but was not affected by S-metolachlor or S-metolachlor rate. S-metolachlor affected sugarbeet growth, but a rate of 0.54 kg ai ha -1 was safe across soils and growing conditions. No differences in varietal tolerance were observed. S-metolachlor applied immediately after planting or at the cotyledon and two-leaf stage injured sugarbeet less than application 3, 5, or 7 d after planting.

Gonzalez, Cesar. "Response of Three Cultivars of Bell Pepper (Capsicum Annuum L.) to Mulching & Irrigation." TopSCHOLAR®, 1988. https://digitalcommons.wku.edu/theses/2411.

Hafner, Timothy. "The Effects of Within-Row Spacings & Cultivars on the Yield of Bush Snap Beans (Phaseolus vulgaris L.)." TopSCHOLAR®, 1990. https://digitalcommons.wku.edu/theses/2428.

Thompson, Leslie. "Efficacy of Sucker Control Method and Effect of Topping Height on Axillary Bud Growth in Dark Fire-Cured Tobacco." TopSCHOLAR®, 2001. http://digitalcommons.wku.edu/theses/640.

Mathews, David. "A Comparative Study of Composted Organic Wastes and IBDU Fertilizer in Nitrogen Utilization by Bentgrass Cultivars." TopSCHOLAR®, 2001. http://digitalcommons.wku.edu/theses/675.

Sabal, Harry. "Molecular Characterization of Citrus Tristeza Virus Isolates in Commercial Citrus Grown in Belize." TopSCHOLAR®, 2001. http://digitalcommons.wku.edu/theses/699.

Oveson, Dawn. "Efficacy of Soybean Herbicides on Annual Morninglory." TopSCHOLAR®, 2001. http://digitalcommons.wku.edu/theses/691.

Kelley, Tracy. "Efficacy, Phytotoxicity, and Cover Crop Response of Herbicide Combinations in Dark Fire Cured Tobacco." TopSCHOLAR®, 2000. http://digitalcommons.wku.edu/theses/724.

Tawhid, Aslam. "Effects of Soybean Cultivars and Planting Dates on Biomass Production." TopSCHOLAR®, 1994. http://digitalcommons.wku.edu/theses/952.

Coles, Joanna. "Efficacy of Herbicide Combination on Burley and Dark-Air Cured Tobacco." TopSCHOLAR®, 2003. http://digitalcommons.wku.edu/theses/586.

Canty, Amanda. "Comparison of Nutrient Concentration in Four Fertility Treatments After Poultry Litter Application to Orchardgrass and Sorghum-Sundangrass Hayfield Soils." TopSCHOLAR®, 2002. http://digitalcommons.wku.edu/theses/623.

Pigg, Carol. ""Bound Together . . . By Blood and Soul": Donald Davidson's Strategic Retreat into the Myth of Life in the Old South." TopSCHOLAR®, 2000. http://digitalcommons.wku.edu/theses/692.

Stiles, Maria. "Evaluation of the Persistence of Grazing Alfalfa Varieties." TopSCHOLAR®, 2002. http://digitalcommons.wku.edu/theses/638.

Beckort, Richard. "Evaluation of Three Coverings for the Overwintering of Container Grown Herbaceous Perennials in Kentucky." TopSCHOLAR®, 1987. https://digitalcommons.wku.edu/theses/2153.

Fox, Susan. "A Comparison of Chemical Composition & Fermentation Patterns of Alternative Silages to Whole Plant Corn Silage." TopSCHOLAR®, 1989. https://digitalcommons.wku.edu/theses/2346.

Craft, Kortney E. "Economic Impacts of Drought on Kentucky Corn, Hay, and Soybeans." TopSCHOLAR®, 2011. http://digitalcommons.wku.edu/theses/1066.

Coomer, Taylor Dayne. "Effect of Potassium Deficiency on Uptake and Partitioning in the Cotton (Gossypium hirsutum L.) Plant and Detection by a Crop Reflectance Sensor." Thesis, University of Arkansas, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10110014.

For cotton ( Gossypium hirsutum L.) to grow and develop normally, plants need to uptake the necessary amount of nutrients and use those nutrients in a beneficial fashion. It is recognized that cotton needs a certain tissue concentration of ions to achieve and maintain growth rates (Siddiqi et al., 1987). One of the most essential and abundant nutrients in cotton is potassium (K), second only by mass to nitrogen (N) (Marschner, 1995; Oosterhuis et al., 2013). Potassium exists in the soil in four separate pools and moves through soil to roots mainly through diffusion (Rengel & Damon, 2008; Samal et al., 2010; Ogaard et al., 2001). Potassium plays a vital role in plant growth and metabolism.

The objectives of this study were to determine the Michaelis-Menten parameters for the high-affinity transport system (HATS) and low-affinity transport system (LATS) uptake mechanisms of cotton, observe how K is partitioned throughout the cotton plant over a growing season with differing K fertilization rates, and to determine if cultivars differed in values from currently available indices formulated for N-status detection from active sensors. It also set out to determine if these N-sensitive indices were sensitive to leaf K concentration and available K2O in the soil, and to evaluate the role these indices play in predicting yield. It was hypothesized that a high K hydroponic environment would lead to more K uptake by cotton roots, which would lead to an increase in VMAX and KM. It was also hypothesized that with increased K fertilization, there would be greater K uptake and larger shift to reproductive components due to the plant having more than enough K in all other parts enabling it to send more to the reproductive components, and that greater K rates would lead to higher yields across all cultivars. It was believed that normalized difference vegetation index (NDVI) would more accurately predict leaf K, available K2O, and yield than normalized difference red edge (NDRE), that NDVI and NDRE would more accurately determine the K parameters chosen than canopy chlorophyll content index (CCCI), due to the strong influence of the red-edge band in the index and that yield would be most accurately predicted by the CCCI, due to yield being influenced by both chlorophyll content and biomass, and the CCCI involving the red-edge band to reflect chlorophyll content and the near infrared band to detect biomass.

Penick, William Frazier. "Influence of Transplanter Modification and Previous Crop on the Production of No-Till Dark Tobacco." TopSCHOLAR®, 2013. http://digitalcommons.wku.edu/theses/1257.

Daniel, Kyle. "Asexual Propagation of Four Cultivars of Vaccinium Corymbosum and Weed Management in an Established Orchard of Vaccinium Corymbosum 'Bluejay' (Highbush Blueberry) in South Central Kentucky." TopSCHOLAR®, 2006. http://digitalcommons.wku.edu/theses/456.

Simmons, Jason. "Influence of Poultry Litter on Dark Tobacco Growth and Soil Nutrient Availability." TopSCHOLAR®, 2004. http://digitalcommons.wku.edu/theses/516.

Claycomb, David. "An Economic Study of the Relative Profitability of Alfalfa Production and Marketing Practices." TopSCHOLAR®, 1995. http://digitalcommons.wku.edu/theses/903.

Fenton, Lynda L. "Evapotranspiration of Kentucky Bluegrass." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/745.

Von, Boeck Walter. "Agronomical behavior of two kinds of swiss chard (Beta vulgaris var. cicla L.) fertilized with earthworm humus in an underground greenhouse in Viacha, La Paz." BYU ScholarsArchive, 2000. https://scholarsarchive.byu.edu/etd/5452.

Whitacre, Marina K. "Cattle as Grazing Management and Seed Dispersal Tools for Increasing Native Species Diversity on Great Basin Rangelands." DigitalCommons@USU, 2004. https://digitalcommons.usu.edu/etd/6604.

Boglaienko, Daria. "Buckwheat as a Cover Crop in Florida: Mycorrhizal Status, Soil Analysis, and Economic Assessment." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/921.

Titolo, Donato. "USING AN ACTIVE OPTICAL SENSOR TO IMPROVE NITROGEN MANAGEMENT IN CORN PRODUCTION." UKnowledge, 2012. http://uknowledge.uky.edu/pss_etds/11.

Hambrick, Timothy. "Effect of Phosphorus Placement Methods on the Yield & Quality of Tomatoes." TopSCHOLAR®, 1989. https://digitalcommons.wku.edu/theses/2422.

Sandifer, G. Tom Jr. "The Effect of Tillage Methods & Row-Widths on Selected Growth Characteristics & Yield of Soybeans." TopSCHOLAR®, 1985. https://digitalcommons.wku.edu/theses/2811.

Thompson, Christopher. "The Effect of Phosphorous Placement & Rate on Phosphorus Uptake, & Growth & Yield of Tomatoes." TopSCHOLAR®, 1990. https://digitalcommons.wku.edu/theses/2931.

Widodo. "The Effects of Spacings & Cultivars on Biological Yields, Yields, Component of Yield & Harvest Index of Green Bush Snap Bean (Phaseolus vulgaris L.)." TopSCHOLAR®, 1989. https://digitalcommons.wku.edu/theses/2967.

Shelton, Rebecca Erin. "CONSERVATION AGRICULTURE IN KENTUCKY: INVESTIGATING NITROGEN LOSS AND DYNAMICS IN CORN SYSTEMS FOLLOWING WHEAT AND HAIRY VETCH COVER CROPS." UKnowledge, 2015. http://uknowledge.uky.edu/pss_etds/59.

Law, Audrey. "EVALUATING THE EFFECTS OF ORGANIC AND CONVENTIONAL INPUTS ON SOIL CHEMICAL AND BIOLOGICAL PROPERTIES IN A FOUR-YEAR VEGETABLE ROTATION AND THE INVESTIGATION OF SOIL MICROBIAL PROPERTIES ON PLANT GENE EXPRESSION." UKnowledge, 2009. http://uknowledge.uky.edu/gradschool_diss/704.

Jimenez, Ricardo A. "Evaluation of Fomesafen for Broadleaf Weed Control, In Soybeans (Glycine Max)." TopSCHOLAR®, 1988. http://digitalcommons.wku.edu/theses/1711.

Mairs, Ryan Alan. "Effects of Bacillus Mycoides Supplement in a Reduced Frequency Fungicide Program on Chambourcin Grapevines (Vitis Vinifera L.)." TopSCHOLAR®, 2018. https://digitalcommons.wku.edu/theses/3047.

Dye, Rick. "Isolation & Characterization of a Type I Topoisomerase from the Hypocotyls of Etiolated Soybeans." TopSCHOLAR®, 1989. https://digitalcommons.wku.edu/theses/2278.

Baniszewski, Julie. "IRRIGATED ZEA MAYS RESPONSE TO NITROGEN AND HIGH PLANT POPULATION DENSITY IN NARROW ROWS." UKnowledge, 2016. http://uknowledge.uky.edu/pss_etds/73.

Ferrufino, Miranda José. "Evaluation of quinoa (Chenopodium quinoa Willd) at different spacings between furrows and plants in the Mamani community." BYU ScholarsArchive, 2003. https://scholarsarchive.byu.edu/etd/5360.

Pablo, Raúl Andrade Andrade. "Effect of chemical fertilization and organic amaranth (Amaranthus caudatus L.) var. Alegria INIAP Chaltura." BYU ScholarsArchive, 2006. https://scholarsarchive.byu.edu/etd/5414.

Santoro, Maria Julia. "CORN GRAIN YIELD COMPONENTS AND NUTRIENT ACCUMULATION IN RESPONSE TO NITROGEN, PLANT DENSITY AND HYBRID." UKnowledge, 2018. https://uknowledge.uky.edu/pss_etds/100.

Shahadha, Saadi Sattar. "Measured Soil Hydraulic Properties as RZWQM2 Input to Simulate Soil Water Dynamics and Crop Evapotranspiration." UKnowledge, 2018. https://uknowledge.uky.edu/pss_etds/110.

Sciarresi, Cintia Soledad. "OPTIMIZING COVER CROP ROTATIONS FOR WATER, NITROGEN AND WEED MANAGEMENT." UKnowledge, 2019. https://uknowledge.uky.edu/pss_etds/122.

Florence, Darlene Christina. "Agronomic Land Management Effects on Soil Fertility and Grain Crop Productivity in Western Kenya and Ohio." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1338341162.

Chater, John Matthew. "THE EFFECTS OF FOLIAR NUTRIENT APPLICATIONS ON SPLIT, YIELD, AND INTERNAL FRUIT QUALITY OF 'WONDERFUL' POMEGRANATE (PUNICA GRANATUM L.)." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1510.

Kenney, Ian T. "Regional assessment of short-term impacts of corn stover removal for bioenergy on soil quality and crop production." Thesis, Kansas State University, 2011. http://hdl.handle.net/2097/13186.

Miranda, Fernandez Saul Victor. "Processing and Conservation of the Little Corn in Aiquile province in the Cochabamba Department: use of antioxidants, organic and industrial evaluation." BYU ScholarsArchive, 1997. https://scholarsarchive.byu.edu/etd/5402.

Pyzola, Stephanie. "NITRATE REDUCTION COUPLED TO IRON(II) AND MANGANESE(II) OXIDATION IN AN AGRICULTURAL SOIL." UKnowledge, 2013. http://uknowledge.uky.edu/pss_etds/20.

Sherman, Austin. "INTEGRATING COVER CROPS AND HERBICIDES FOR HORSEWEED [ Conyza canadensis (L.) Cronq.] MANAGEMENT PRIOR TO SOYBEAN [ Glycine max (L.) Merr.]." UKnowledge, 2019. https://uknowledge.uky.edu/pss_etds/121.

Theses at the Centre for Crop Systems Analysis

The Centre for Crop Systems Analysis offers exciting topics in the domains of crop production and agro-ecology. Our research questions are addressed using both state-of-the-art experimental designs as well as innovative modelling approaches. Most topics presented on this page can be done as a master thesis as well as a research Practice. In many cases a BSc thesis is also possible. Please send an e-mail to the contact person mentioned at the topic of your interest for more information.

Thesis projects per theme

Agrobiodiversity

Ecology of plant pests and pathogens

Intercropping

Crop climate adaptation

Crop photosynthesis

Product quality

Root biology

Crop-weed interactions

Genotype to phenotype

Seed systems

Tropical perennials