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Three Lc-Ms Plant Metabolomics Studies Of Hop (Humulus) Species: Wild H. Neomexicanus, Drought Stress, And Agricultural Terroir, Taylan Morcol 2021 The Graduate Center, City University of New York

Three Lc-Ms Plant Metabolomics Studies Of Hop (Humulus) Species: Wild H. Neomexicanus, Drought Stress, And Agricultural Terroir, Taylan Morcol

Dissertations, Theses, and Capstone Projects

The hop plant (Humulus L., Cannabaceae) is a dioecious, perennial, twining vine with a long history of human use. Nowadays, hop plants are generally grown for their inflorescences (“cones”), which are used in brewing for their phytochemical metabolites. Many of these metabolites are involved in plant stress response and communication. Genetics and environment are two major factors that affect plant metabolism. In three separate metabolomics studies, this project examined the effects of both genetic and environmental factors on hop phytochemistry.

In the first study, 23 hop genotypes were grown in two different locations in the Pacific Northwest region of the ...


Algae-Based Feed Ingredient Protects Intestinal Health During Eimeria Challenge And Alters Systemic Immune Responses With Differential Outcomes Observed During Acute Feed Restriction, K. Fries-Craft, M. M. Meyer, Elizabeth A. Bobeck 2021 Iowa State University

Algae-Based Feed Ingredient Protects Intestinal Health During Eimeria Challenge And Alters Systemic Immune Responses With Differential Outcomes Observed During Acute Feed Restriction, K. Fries-Craft, M. M. Meyer, Elizabeth A. Bobeck

Animal Science Publications

Compounds in microalgae-derived feed ingredients in poultry diets may improve intestinal physiology and immunity to protect against damage induced by physiological and pathogen challenges, but mechanisms are examined sparingly. The study objective was to evaluate changes to intestinal morphology, permeability, and systemic immunity in broilers fed a proprietary microalgae ingredient during 2 separate challenge studies. In study 1, two replicate 28 d battery cage trials used 200 Ross 308 broilers each (n = 400) fed a control diet ± 0.175% algae ingredient. Half of the birds were subjected to a 12 h feed restriction challenge and fluorescein isothiocyanate dextran (FITC-D) intestinal ...


Greening The Archive: The Social Climate Of Cotton Manufacturing In The "Samuel Oldknow Papers, 1782-1924", Bernadette Myers, Melina Moe 2021 Columbia University

Greening The Archive: The Social Climate Of Cotton Manufacturing In The "Samuel Oldknow Papers, 1782-1924", Bernadette Myers, Melina Moe

Journal of Contemporary Archival Studies

This article re-examines the records and correspondence of Samuel Oldknow, a late eighteenth century textile manufacturer, within the context of the environmental humanities. Oldknow’s papers, a portion of which are held at Columbia University, are most often used by economic historians to date the beginnings of the factory wage labor system. We highlight, instead, the environmental implications of Oldknow’s cotton enterprise by juxtaposing documents related to the global reach of Oldknow’s empire with evidence of his transformation of the local landscape of northern England. This process of re-scaling captures a sense of what we call the “social ...


Parents' Perceptions Of Life Skill Development And Satisfaction With Utah 4-H, Oakley G. Perry 2021 Utah State University

Parents' Perceptions Of Life Skill Development And Satisfaction With Utah 4-H, Oakley G. Perry

All Graduate Theses and Dissertations

The 4-H program is the nation’s largest youth development program with near six million members nationwide. Utah 4-H provides this program to the residents of Utah through Utah State University’s Extension Service. The program focuses on teaching life skills to youth to prepare them for their future using hands on educational programs tied to project areas, or particular topics like equine science or fine arts. Utah 4-H has many different stakeholders, one of which being the parents of its members. For youth programs to continue to be successful, these programs must show stakeholders their significance and ensure that ...


Nebline, August 2021, 2021 University of Nebraska - Lincoln

Nebline, August 2021

The NEBLINE Newsletter Archive from UNL Extension in Lancaster County

The Myths & Facts of Head Lice

Coping with Picky Eating

Recipes of the Month

6 Common Composting Questions

Garden Guide: Things to do this Month

Tips for a Fun and Educational Day at the Fair

Kissing Bugs in Nebraska

Lancaster County Super Fair, July 29-Aug. 7, 2021

Heart of 4-H Volunteer Award

4-H Teen Council Invites New Members

4-H Gold Tournament Fundraiser, Oct. 3

4-H’ers Test Family and Consumer Science Skills at Life Challenge

4-H Clover College: 48 Workshops of Hands-on Learning!

4-H’ers Test Their Knowledge of Animals and Decision-Making Skills at PASE

4-H District Horse Results

4-H ...


Impacts Of Crop Insurance And Intra-Season Hedging On Long-Run Net Income Risk, Kara Zimmerman 2021 University of Nebraska-Lincoln

Impacts Of Crop Insurance And Intra-Season Hedging On Long-Run Net Income Risk, Kara Zimmerman

Dissertations and Theses in Agricultural Economics

Each year producers must make risk management decisions early in the growing season when many variables are unknown. In this thesis we create an empirical model utilizing thirty years (1989-2018) of historical yield, cost, and daily price series data, to determine the optimal risk management strategy of crop insurance and an intra-season marketing plan that will both minimize net income risk and maximize average net income. The empirical model is taken a step further to include an out-of-sample year in order to test the robustness of empirical results to financially devastating events that have never been seen. We test the ...


Quantifying The Combined Effect Of Abiotic Factors On The Decomposition Of Organic Matter In Semiarid Grassland Soils, Elnazsadat Hosseiniaghdam 2021 University of Nebraska-Lincoln

Quantifying The Combined Effect Of Abiotic Factors On The Decomposition Of Organic Matter In Semiarid Grassland Soils, Elnazsadat Hosseiniaghdam

Theses, Dissertations, and Student Research in Agronomy and Horticulture

Grassland ecosystems play a critical role in the global carbon cycle, and their cumulative carbon dioxide (CO2) emissions can be affected by animal grazing where litter (i.e., dead plant material) is trampled into the soil. However, the subsequent effects of trampling on litter decomposition are not well understood. Meanwhile, abiotic factors, especially temperature and soil moisture, are known to strongly affect litter decomposition. Due to the very small number of published studies that have considered litter placement, either litter on top of soil or litter mixed with soil as a factor in litter decomposition under different temperature and soil ...


Development Of High Value Oil Traits Using The Model Oilseed Crop Camelina Sativa, Evan Updike 2021 University of Nebraska-Lincoln

Development Of High Value Oil Traits Using The Model Oilseed Crop Camelina Sativa, Evan Updike

Theses and Dissertations in Biochemistry

Plant oils are an important source of food, fuel, and feed in our society today. The oil found in the seeds of plants is composed almost entirely of triacylglycerol (TAG) molecules, which consist of three fatty acids esterified to a glycerol backbone. As crude oil supplies decline, vegetable oils are gaining traction as a renewable substitute to petroleum-based materials in fuels, lubricants, and specialty oleochemicals. However, as it currently stands vegetable oils do not possess the properties necessary to fill the void of a petroleum free world.

To address this problem, plant biotechnologists have done extensive work on genetic engineering ...


Studies On Milling And Baking Quality And In-Vitro Protein Digestibility Of Historical And Modern Wheats, Sujun Liu 2021 University of Nebraska-Lincoln

Studies On Milling And Baking Quality And In-Vitro Protein Digestibility Of Historical And Modern Wheats, Sujun Liu

Dissertations, Theses, & Student Research in Food Science and Technology

There is considerable controversy among the public and the scientific community about whether modern wheats are harmful for human health and responsible for the increase of Celiac disease compared with historical varieties. Therefore, the milling and baking quality, protein digestibility, and protein composition of historical and modern wheats adapted to the Great Plains of the US were evaluated in this thesis. One objective of this thesis was to determine how end-use quality of wheat changed with wheat cultivar release year. Kernel physical characteristics, milling yield, whole-wheat flour quality, flour protein content, mixing quality and baking quality of 23 hard winter ...


The Role Of Fatty Acids In Ruminant Diets And Novel Feed Ingredients High In Omega– 3 Fatty Acids Fed In Feedlot Diets, Mitchell M. Norman 2021 University of Nebraska-Lincoln

The Role Of Fatty Acids In Ruminant Diets And Novel Feed Ingredients High In Omega– 3 Fatty Acids Fed In Feedlot Diets, Mitchell M. Norman

Theses and Dissertations in Animal Science

A finishing study evaluated the performance, carcass characteristics and fatty acid profiles of steers fed four inclusions of a novel feedstuff Green Grass. Green Grass is a product comprised of sesame meal, giant kelp, cassava, and sorghum containing high concentrations of polyunsaturated fatty acids. No differences were observed in initial BW, final BW, BW gain, HCW, LM area, 12th rib fat depth, calculated YG, or liver abscess %. Dry matter intake linearly increased as Green Grass inclusion increased in the diet. Steers fed Green Grass had lower G:F than control cattle, and steers fed 30% Green Grass had a ...


The Determinants Of Food Insecurity In The United States: A State Level Analysis, Zhuoya Li 2021 Missouri State University

The Determinants Of Food Insecurity In The United States: A State Level Analysis, Zhuoya Li

MSU Graduate Theses

The purpose of this study was to examine the determinants of food insecurity at the state level with the goal of providing policy guidance to reduce the prevalence of food insecurity in the United States. Data for the study was collected from various governmental and non-governmental sources. Linear regression models and sensitivity analyses were conducted. The study found that increase in household income is likely to significantly reduce the prevalence of food insecurity and very low food security. While poverty alleviation is more important than level of education for food insecure households, level of education is more important than poverty ...


Supplementing East Tennessee Landscapes For Pollinators With Native Perennials, Amani Khalil 2021 University of Tennessee, Knoxville

Supplementing East Tennessee Landscapes For Pollinators With Native Perennials, Amani Khalil

Masters Theses

Tennessee, home to the Great Smoky Mountains, is a biodiversity hotspot for many plant and animal species, yet it receives relatively few conservation dollars (Jenkins et al., 2015). As a biodiversity hotspot, this region may be home to many endemic species, but little is known about the abundance or diversity of insect pollinators. In order to both estimate pollinator communities in East Tennessee and pollinator forage preferences for native Tennessee plants, we established four plots, comprised of three plant families across five common land use types. Over two field seasons we collected nearly 7,300 insect specimens with a total ...


Management Of Glyphosate-Resistant Palmer Amaranth (Amaranthus Palmeri S. Watson) In Dicamba/Glyphosate-Resistant Soybean, Shawn McDonald 2021 University of Nebraska-Lincoln

Management Of Glyphosate-Resistant Palmer Amaranth (Amaranthus Palmeri S. Watson) In Dicamba/Glyphosate-Resistant Soybean, Shawn Mcdonald

Theses, Dissertations, and Student Research in Agronomy and Horticulture

While not a historically problematic weed in Nebraska, Palmer amaranth has become increasingly problematic in many agronomic cropping systems. Throughout the state, several cohorts of Palmer amaranth have been found resistant to several different sites of action. Of major concern is a population found resistant to glyphosate the most common post-emergence herbicide in Nebraska. As chemical control methods are the most common forms of weed control throughout the state methods alternatives or enhancements are highly desired. Two field experiments were conducted in 2018 and 2019 at a grower’s field near Carleton, Nebraska with the objectives to evaluate the effects ...


Integrating Underutilized Black Volunteers In 4-H Youth Development Programs, Maurice Smith Jr., Shannon Wiley 2021 National Institute of Food and Agriculture

Integrating Underutilized Black Volunteers In 4-H Youth Development Programs, Maurice Smith Jr., Shannon Wiley

The Journal of Extension

4-H Youth Development prides itself on providing essential resources to reach underserved minority populations. 4-H provides programming and professional development for volunteers to include diverse hands-on training, and cultural competency workshops. This article provides best practices for the inclusion of African American volunteers in 4-H programming efforts that could help extension educators better understand the need to include minority volunteer roles and responsibilities. These strategies include strengthening diverse volunteer make-up, increasing participation and trust among African American youth, and engaging volunteers working in educational organizations that could provide real world experiences for youth.


Veganic Agriculture In The United States: Opportunities For Research, Outreach, And Education, Alisha Utter, Mona Seymour 2021 University of Vermont

Veganic Agriculture In The United States: Opportunities For Research, Outreach, And Education, Alisha Utter, Mona Seymour

The Journal of Extension

A growing number of farmers are excluding animal inputs from crop production, an approach commonly referred to as veganic or stockfree organic agriculture. This research-based article discusses the soil health and fertility strategies reported by a sample of U.S. veganic farmers. These approaches may be relevant beyond the veganic community to farmers seeking innovative methods for produce safety and nutrient cycling. Agricultural outreach professionals (AOPs), including Extension personnel, play a critical role in supporting veganic practices by serving as cross-pollinators between farmers and research institutions. Thus, the article endeavors to expand AOP familiarity with veganic practices and benefits.


Lrp-Feeder Cattle Insurance Usage Up With Recent Changes, Jay Parsons 2021 University of Nebraska-Lincoln

Lrp-Feeder Cattle Insurance Usage Up With Recent Changes, Jay Parsons

Cornhusker Economics

Market uncertainties pose a significant risk to cattle producers, who have a substantial amount of money invested in breeding livestock, land, and other infrastructure. Live-stock Risk Protection (LRP) insurance became available in the early 2000s from the USDA Risk Management Agency to provide cattle and swine producers with a simple price risk management tool to protect against unexpected down-swings in the national market price. LRP is a single-peril insurance product that provides an indemnity to insured producers if a national price index falls below a selected coverage price on the end date of the policy. LRP insurance functions like a ...


The Backyard Garden - Leafy Greens Pests, Nick Volesky, Marion Murray 2021 Utah State University

The Backyard Garden - Leafy Greens Pests, Nick Volesky, Marion Murray

All Current Publications

This fact sheet provides information about the diseases that affect leafy greens. It includes general information, other hosts, disease symptoms to watch for, and management options.


What Is Biochar And How Is It Used?, Marion Murray 2021 Utah State University

What Is Biochar And How Is It Used?, Marion Murray

All Current Publications

Biochar is a charcoal-like product that contains no petroleum. It is made by heating biomass such as herbaceous or woody crop residues, non-salvageable timber, and slash, or animal manure, in a contained system. There are many potential uses for biochar including water treatment, land reclamation, and carbon sequestration. Biochar may also be used as a soil amendment for two purposes – to improve plant health and to store carbon.


Barrenador Grande Del Durazno, Marion Murray, Diane G. Alston, Celina Wille 2021 Utah State University

Barrenador Grande Del Durazno, Marion Murray, Diane G. Alston, Celina Wille

All Current Publications

El barrenador grande del durazno (orden Lepidóptera, familia Sesiidae) es originario de América del Norte, donde las cerezas y ciruelas silvestres son sus huéspedes nativos. Es una plaga esporádica en los frutales de hueso o carozo de Utah, pero si no se controla, puede ser lo suficientemente grave como para causar la pérdida del árbol.


Plagas De Orugas De Vegetales Del Género Brassica, Marion Murray, Diane G. Alston, Celina Wille 2021 Utah State University

Plagas De Orugas De Vegetales Del Género Brassica, Marion Murray, Diane G. Alston, Celina Wille

All Current Publications

Los cultivos de Brassica albergan muchas plagas de insectos diferentes, inclusive varias especies de orugas. Los tres más comunes en Utah son la palomilla dorso de diamante (Plutella xylostella), la oruga de la col (Trichoplusia ni), y el gusano importado de las coles (Pieris rapae).


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