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Regional Plant Community Differences In The Nebraska Sandhills, Travis Millikan 2022 University of Nebraska-Lincoln

Regional Plant Community Differences In The Nebraska Sandhills, Travis Millikan

Theses, Dissertations, and Student Research in Agronomy and Horticulture

The Nebraska Sandhills is very valuable to the state of Nebraska, representing one of the most in-tact and largest grassland ecosystems in temperate regions in the world. Rangeland managers must understand plant community dynamics across the Sandhills to better inform management decisions. The first objective of this study was to evaluate plant community variability on upland Sands ecological sites across different precipitation zones in the Nebraska Sandhills. The second objective of our study was to utilize the Rangeland Analysis Platform (RAP) to examine spatial and temporal variability in biomass production and cover on pastures of ranches analyzed in the first ...


Liquid Chromatography With Tandem Mass Spectrometry Method Development For The Determination Of Β–Defensins In Bovine Milk, Symone T. Whalin 2022 Western Kentucky University

Liquid Chromatography With Tandem Mass Spectrometry Method Development For The Determination Of Β–Defensins In Bovine Milk, Symone T. Whalin

Masters Theses & Specialist Projects

Bovine mastitis, caused by a wide array of pathogens, results in a substantial economic loss for the dairy cattle livestock industry. β-defensins are a part of the bovine’s innate immune system and act as the first line of defense against mastitis. Only foundational research has been done on β-defensins’ ability to treat and prevent mastitis. There have been no analytical methods reported in the literature for analyzing β-defensins in bovine milk. This research aims to create an analytical approach to determine β-defensins in bovine milk. It is challenging to determine an analyte in a complex sample matrix, and milk ...


Wayne E. Sabbe Arkansas Soil Fertility Studies 2021, Nathan A. Slaton 2022 University of Arkansas, Fayetteville

Wayne E. Sabbe Arkansas Soil Fertility Studies 2021, Nathan A. Slaton

Arkansas Agricultural Experiment Station Research Series

Rapid technological changes in crop management and production require that the research efforts be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops. The studies described within will allow producers to compare their practices with the university’s research efforts. Additionally, soil-test data and fertilizer sales are presented to allow comparisons among years, crops, and other areas within Arkansas.


Sewing And Dressmaking In Martha Mcmillan's Day (1891), Elizabeth G. Allen 2022 Cedarville University

Sewing And Dressmaking In Martha Mcmillan's Day (1891), Elizabeth G. Allen

Martha McMillan Research Papers

This paper describes the process of sewing and dressmaking in America from the mid 1800s to the early 1900s and provides historical context for Martha McMillan's discussion of sewing and dressmaking in her 1891 journal.


Exploration Of Genes Controlling Grain Yield Heterosis In Hybrid Wheat (Triticum Aestivum L.) Utilizing 3ʹ Rna Sequencing, Nichole Miller 2022 University of Nebraska-Lincoln

Exploration Of Genes Controlling Grain Yield Heterosis In Hybrid Wheat (Triticum Aestivum L.) Utilizing 3ʹ Rna Sequencing, Nichole Miller

Theses, Dissertations, and Student Research in Agronomy and Horticulture

The implementation and future success of hybrid wheat (Triticum aestivum L.) is impacted by breeders’ inability to create consistent high yielding, high heterosis hybrids. This research addresses this problem by conducting an exploration of transcriptomes from hybrids and parent lines to determine what genes are active in heterotic or non-heterotic hybrids and how their level of expression can explain the phenotype of grain yield heterosis. Using hybrids that showed positive mid-parent heterosis (MPH), classified as heterotic in our study, and negative or no difference MPH hybrids, classified as non-heterotic, differentially expressed genes (DEGs) potentially related to heterosis and hybrid yield ...


Evaluating Traits Influencing Hybrid Wheat Seed Production Using A Double Haploid Population Derived From Freeman X Camelot, Emre Karahan 2022 University of Nebraska-Lincoln

Evaluating Traits Influencing Hybrid Wheat Seed Production Using A Double Haploid Population Derived From Freeman X Camelot, Emre Karahan

Theses, Dissertations, and Student Research in Agronomy and Horticulture

Hybrid wheat (Triticum aestivum L.) cultivars are preferred for their advanced agronomic traits such as a yield improvement increase up to 20%. However, hybrid cultivars remain difficult to produce on a commercial scale due to inadequate pollen dispersal, the closed nature of the wheat floret and the high cost of inducing sterility or restoring fertility in cleistogamous wheat. Redesigning parent-specific traits and understanding their potential interactions with related agronomic traits are needed to breed improved male lines in hybrid seed production fields. To better understand the genetic control of anther extrusion (AE), 174 double haploid lines derived from Freeman (excellent ...


Access To Culturally Appropriate Food In Chittenden County: A Program Evaluation Of The Vermont Foodbank’S Fresh Food Distribution, Caroline L. Gilman 2022 University of Vermont

Access To Culturally Appropriate Food In Chittenden County: A Program Evaluation Of The Vermont Foodbank’S Fresh Food Distribution, Caroline L. Gilman

Food Systems Master's Project Reports

The Vermont Foodbank, and community organizations statewide, have been working towards creating systems in which community members who receive produce have their cultural preferences taken into consideration. The Janet S. Munt Family Room, a non-profit organization that provides programs and services to parents and young children, is the leading distribution site for the Vermont Foodbank’s gleaning program. Every month, thousands of pounds of fresh, local vegetables are distributed at their programs. In addition to gleaned produce, the Family Room was a recipient of the Vermont Foodbank’s culturally appropriate community-supported agriculture (CSA) shares in 2021, which distributed targeted, responsive ...


Social Justice And The Us Food System: A Critical Course On The Human Dimensions Of Food, Ali Brooks 2022 The University of Vermont

Social Justice And The Us Food System: A Critical Course On The Human Dimensions Of Food, Ali Brooks

Food Systems Master's Project Reports

Our world is made up of overlapping political, environmental, and economic spheres that engender social injustice and inequality. Though separate societal issues can seem divergent and unconnected, they are all linked together by one universal necessity: food. Because everyone eats, everyone is connected to—and dependent on—food and the systems that govern it. However, the impacts of our industrial food system are not felt equally among people who hold different positions of power within it.

Today’s industrial food complex operates on the capitalist principle of profit accumulation through exploitation, commodification, and extraction. This set of relations is not ...


The Impact Of Plant Cell Wall Lignin On Energy Utilization In Lactating Jersey Cows., Jason Stypinski 2022 University of Nebraska-Lincoln

The Impact Of Plant Cell Wall Lignin On Energy Utilization In Lactating Jersey Cows., Jason Stypinski

Theses and Dissertations in Animal Science

Fiber from forages comprises a significant proportion of dairy cattle rations and by extension, it contributes largely to the energy concentration of the diet. While the proportion of fiber in the diet is important, the composition of fiber is probably more important as the different constituents of this fraction vary in their contributions to the nutritive value of the feed. Lignin has been described as an important factor limiting the digestion of NDF, reducing intake, and compromising milk production. Although lignin’s effects on these responses have been well characterized, the literature lacks data on the use of indirect calorimetry ...


Shew Family Farms Shares Their Story In Honor Of Athen's Farmers Market 50th Anniversary, Marjorie Shew, Kassidy Rock 2022 Ohio University

Shew Family Farms Shares Their Story In Honor Of Athen's Farmers Market 50th Anniversary, Marjorie Shew, Kassidy Rock

Spring 2022 Oral Histories: Athens Farmers Market and The Ridges

Member of the Athens Farmers Market since1984, Marjie Shew of Shew Family Farms, now known as Shew's Grassfed Beef, shares her story. From beginning in upstate New York to living on a commune in West Virginia, to owning an orchard with her husband in Morgan County, Ohio and every step in between.


Examination Of Pre-Emergence Control Of Johnsongrass In Sugarcane Seedlings, Carleton Baucum 2022 Louisiana State University

Examination Of Pre-Emergence Control Of Johnsongrass In Sugarcane Seedlings, Carleton Baucum

LSU Master's Theses

Sugarcane is susceptible to many diseases and insect pests; therefore, to maintain high sugar yield new varieties must be developed. Producing new varieties contributes to the overall crop success through enhanced yield, insect and/or disease resistance, cold tolerance, and ratooning ability. However, unlike conventional sugarcane, which is vegetatively propagated, new sugarcane varieties are produced from true seed. These seedlings are more susceptible to herbicidal injury and weed competition than conventional sugarcane. For sugarcane seedlings to succeed, weeds must be controlled therefore, the most effective herbicide program with regards to seedling safety must be implemented. The objectives of this research ...


A Comparative Assessment Of Soil Characteristics Between Forests And Urban Lawns, Remigio Casanova, Stephanie Huerta, Lukia Kalugin, Garrison Layne, Valerie Pacheco 2022 Stephen F Austin State University

A Comparative Assessment Of Soil Characteristics Between Forests And Urban Lawns, Remigio Casanova, Stephanie Huerta, Lukia Kalugin, Garrison Layne, Valerie Pacheco

Undergraduate Research Conference

Objectives

• Examine the differences in soil characteristics between a recreational lawn and a forest

• Make comparisons between a forest and lawn sampling area from a visual standpoint to observe a difference in what vegetation the soil supports.

• Collect data through on on-site and in in-laboratory methods.

• Interpret the results by examining the collected data and looking for patterns.


Experts’ Views On Issues Affecting Egg Labeling In The United States: A Delphi Study, Rexanna Powers 2022 Louisiana State University and Agricultural and Mechanical College

Experts’ Views On Issues Affecting Egg Labeling In The United States: A Delphi Study, Rexanna Powers

LSU Doctoral Dissertations

When purchasing food, many consumers have reported they question the ethical and humane treatment of products derived from animals at the point of purchase. To complicate this issue further, many U.S. consumers lack exposure, interaction, and involvement with the agricultural industry. As a result, they have reported a willingness to pay premium prices for meats, dairy, and eggs whose packaging suggests quality welfare practices. Therefore, the purpose of this investigation was three-fold: (1) establish operational definitions for poorly understood poultry industry terms, i.e., cage-free, free-range, pasture-raised, and organic; (2) describe experts’ perceptions of the strengths, weaknesses, opportunities, and ...


The Adoption Of Conservation Practices And Program Participation Among Socially Disadvantaged Agricultural Producers: A Meta-Analysis, Myles A. Brown 2022 Louisiana State University and Agricultural and Mechanical College

The Adoption Of Conservation Practices And Program Participation Among Socially Disadvantaged Agricultural Producers: A Meta-Analysis, Myles A. Brown

LSU Master's Theses

As climate change has become undeniable in recent years, it has become increasingly important for the agriculture industry to address conservation. Within the agriculture industry, small farmers are usually the ones who take on this burden on a daily basis. However, some socially disadvantaged agricultural producers face unique challenges compared to the average farmer, which may impede their ability to adopt the necessary conservation practices or participate in conservation programs. This review sought to provide a definitive economic analysis on the possible effect of race on conservation adoption and program participation, as there is not much research on this topic ...


Annotating Gene Expression And Regulatory Elements In Tissues From Healthy Thoroughbred Horses And Identifying Candidate Mutations Associated With Perosomus Elumbis In An Angus Calf, Alexa Barber 2022 University of Nebraska-Lincoln

Annotating Gene Expression And Regulatory Elements In Tissues From Healthy Thoroughbred Horses And Identifying Candidate Mutations Associated With Perosomus Elumbis In An Angus Calf, Alexa Barber

Theses and Dissertations in Animal Science

Genome annotation has a direct impact on the success of genomic studies. Transcriptome analyses and chromatin immunoprecipitation and sequencing (ChIP-seq) have been used to functionally annotate genomes. These methods can identify protein-coding genes, non-coding transcripts, and cis-regulatory elements across the genome. The primary objective of the first study was to functionally annotate the equine genome through the assessment of nine tissues: adipose, brain, heart, lamina, liver, lung, skeletal, muscle, testis, and ovary. In the first project, 150 bp, paired-end RNA sequencing (RNA-seq) libraries were generated in stallion tissues and compared to previously generated mare RNA-seq libraries to quantify variation in ...


Cattle Diet Selection During The Growing Season On Upland Sandhills Rangelands, Alejandro Orozco-Lopez 2022 University of Nebraska-Lincoln

Cattle Diet Selection During The Growing Season On Upland Sandhills Rangelands, Alejandro Orozco-Lopez

Theses, Dissertations, and Student Research in Agronomy and Horticulture

The Sandhills is a diverse and complex ecosystem comprised of different topographic positions (i.e. slopes and interdunes) that influence grazing distribution, plant species composition, and cattle diet selection. The first objective of this study was to evaluate how grazing intensity influences species composition on slopes and interdunes on native rangeland within the Hillside pasture (160 ha) at the UNL Gudmundsen Sandhill’s Laboratory (GSL). The second objective of this study was to evaluate forage quality of individual species from three plant functional groups (i.e. warm-season grasses, cool-season grasses, and forbs/shrubs) on native rangeland within the Hillside pasture ...


Winter Cover Crop Impacts On Weed Dynamics In Eastern And Central Nebraska, Elizabeth Ann Oys 2022 University of Nebraska - Lincoln

Winter Cover Crop Impacts On Weed Dynamics In Eastern And Central Nebraska, Elizabeth Ann Oys

Theses, Dissertations, and Student Research in Agronomy and Horticulture

Reducing tillage in cropping systems causes weed management to be dependent on chemical and cultural methods for weed control. Over time, herbicide-resistant weeds have developed due to the continuous selection pressures from herbicides, particularly in the Midwest Corn Belt. Integrated weed management strategies, such as cover crops, can be used to mitigate some of these issues. Cover crops are primarily known for their soil health benefits, but there is evidence that cover crops can suppress weeds. However, less research has been done at the field-scale level to address cover crop impacts on the weed seedbank and aboveground weeds during the ...


"The Third Power": James A. Everitt And The American Society Of Equity, Mark Kristian Myrdal 2022 Liberty University

"The Third Power": James A. Everitt And The American Society Of Equity, Mark Kristian Myrdal

Masters Theses

The late 19th century marked a golden age for farmers’ movements in the United States. Crushing debt, deflation, increased urbanization, and industrial acceleration generated much discontent in America’s agricultural communities, and unleashed “a Populist moment” of farmer protest and organization. While the early 20th century witnessed significant economic improvement, farm organizations continued to operate and, in some cases, even thrived. Established in 1902 by seed merchant and newspaper editor James A. Everitt of Indiana, the American Society of Equity was one of the first major farmer’s movements founded in the twentieth century and helped to spread the concept ...


The Effect Of The Water Harvesting Projects On Some Of The Economic Indicators Population In Some Mountain Villages In Latakia (Syria), تأثير مشاريع حصاد المياه في بعض المؤشرات الاقتصادية للسكان في بعض القرى الجبلية في محافظة اللاذقية (سورية), Mahmaud Yasin, Ayham Said 2022 Economics Department, Faculty of Agriculture, Damascus University, Syria

The Effect Of The Water Harvesting Projects On Some Of The Economic Indicators Population In Some Mountain Villages In Latakia (Syria), تأثير مشاريع حصاد المياه في بعض المؤشرات الاقتصادية للسكان في بعض القرى الجبلية في محافظة اللاذقية (سورية), Mahmaud Yasin, Ayham Said

Arab Journal of Arid Environments المجلة العربية للبيئات الجافة

The research aims to study the effect of water harvesting projects by mountain lakes on production cost and economic efficiency for each studied crop for a sample of beneficiaries in mountainous areas in Latakia(Syria). The research sample included all farmers who use water harvesting techniques in the surveyed random selected mountain villages in Latakia, which numbered 20 villages, distributed on four areas (Latakia, Al-haffeh, Jableh and Al-Querdaha). After using Morgens Low, the sample sized 241 farmers. The data was collected by a questionnairedesigned for this purpose, but 32 questionnaires were excluded due to the lack of clarity and accuracy ...


Knowledge Of Greenhouse Tomato Growers About Integrated Pest Management In Jableh District (Latakia Governorate/ Syria) المستوى المعرفي لمزارعي البندورة المحمية بتقانات الإدارة المتكاملة للآفات في منطقة جبلة (محافظة اللاذقية) في الجمهورية العربية السورية, Mohammad Abdullah 2022 Economics Department, Faculty of Agriculture, Damascus University, Syria

Knowledge Of Greenhouse Tomato Growers About Integrated Pest Management In Jableh District (Latakia Governorate/ Syria) المستوى المعرفي لمزارعي البندورة المحمية بتقانات الإدارة المتكاملة للآفات في منطقة جبلة (محافظة اللاذقية) في الجمهورية العربية السورية, Mohammad Abdullah

Arab Journal of Arid Environments المجلة العربية للبيئات الجافة

This research was conducted in Jableh district from Latakia governorate/ Syria in 2107, due to the importance of greenhouse tomato in this area. Five villages that grow Greenhouse tomato and 25 farmers from each village were randomly selected. The data were collected by using a specially designed questioner after traying and adjusting it, so that the final size of sample was 110 farmers after discarding the uncompleted questioners. The research aimed to study some personal and socio – economic characteristics of tomato farmers and to determine their knowledge level about Integrated pest Management (IPM) of greenhouse tomato.

The result showed that ...


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