Digital Commons Network^™

Dark Green Color Index As A Method Of Real-Time In-Season Corn Nitrogen Measurement And Fertilization, Upton Siddons

Graduate Theses and Dissertations

Corn (Zea mays L.) requires higher rates of nitrogen fertilizer than any other major U.S. crop partly because N fertilizers are subject to loss through various mechanisms. Because of this, corn may suffer from inadequate nitrogen fertilization or producers may over-apply nitrogen to compensate for early-season nitrogen losses. A timely, accurate, and precise method for measuring in-season corn N status is needed to allow producers to keep nitrogen use efficiency high within a growing season.

Using appropriate software, hue, saturation, and brightness values of digital images can be combined in a dark green color index (DGCI) which is closely associated …

Production Of Bioethanol By Fermentation Of Sugars Released By Dilute-Acid And Enzymatic Hydrolysis Of Soybean Meal, Deivis E. Lujan-Rhenals

Graduate Theses and Dissertations

Soybean meal (SBM) is a co-product of soybean oil extraction mostly used as animal feed due to its protein content ranging from 40 to 49%. Additionally, SBM contains 35-42% of carbohydrates, half of which are structural, and the remaining consists of approximately 17% of mono- and disaccharides--especially sucrose--up to 8% oligosaccharides, and 1-2% starch. When used as animal feed, only sucrose and starch are digested and absorbed by monogastric animals. Although SBM contributes carbohydrates to their diet, its main function is to provide proteins. Therefore, the selective removal of carbohydrates would create a protein-enriched meal with a greater value, which …

Studies On The Structure And Pathogens Of The Small Hive Beetle (Coleoptera: Nitidulidae), Natasha A. Wright

Graduate Theses and Dissertations

The small hive beetle (Aethina tumida, SHB) is an invasive pest of honey bee (Apis mellifera) colonies in the United States. The adult and larval beetles can ruin honey through fecal contamination and by vectoring a mutualistic yeast (Kodamaea ohmeri) that causes honey fermentation. These beetles also impact honey bee colonies by feeding on bee eggs, bee brood, and pollen. Severe beetle infestations can cause colonies to decline or abscond.

The SHB has been present in the United States since at least 1998. Since then, there have been several published papers on how to successfully rear these beetles. Laboratory rearing …

Measuring The Energy Required To Dry Rice In Commercial Rice Dryers, Maria Alejandra Billiris

Graduate Theses and Dissertations

The objective of this research was to quantify and assess the energy use and efficiency of commercial cross-flow dryers when drying rice using a range of drying and ambient conditions. First, equations that predict the theoretical energy required to dry rice from any given initial moisture content to a desired final moisture content were developed for several rice cultivars using a semi-theoretical approach to obtain a basis for comparison to calculate energy efficiency. Theoretical energy requirements, expressed as the energy required per unit mass of water removed, increased exponentially as initial moisture content decreased. Additionally, medium-grains required more energy to …

A Cradle To Farm Gate Life Cycle Analysis Of Water Use In U.S. Pork Production, Eric Boles

Graduate Theses and Dissertations

The intent of this study was to analyze water use across a range of regions, scales and practices of the U.S. pork industry. A Life Cycle Assessment of water use within the pork supply chain was performed. Cumulative water use was the environmental impact category used in the LCA to evaluate the impacts of pork production processes throughout the pork supply chain. The functional unit for the analysis was the volume of water required to produce one kilogram of swine (live weight) at the farm gate.

A comprehensive literature review was used to design and propagate algorithms for the National …

Athletic Training Education Program Newsletter, Spring 2013, University Of Arkansas, Fayetteville. Athletic Training Education Program

Athletic Training Education Newsletter

No abstract provided.

Center For Food Safety, Spring 2013, University Of Arkansas (System). Division Of Agriculture. Center For Food Safety

Center for Food Safety

No abstract provided.

Animal Science E-Newsletter, March 2013, University Of Arkansas, Fayetteville. Department Of Animal Sciences

Animal Science e-Newsletter

No abstract provided.

Animal Science Newsletter, Spring 2013, University Of Arkansas, Fayetteville. Department Of Animal Sciences

Animal Science Newsletter

"Dedicated to the Alumni and Friends of the Animal Sciences Department, University of Arkansas."

Minutes Of The Faculty Senate Meeting, January 16, 2013, University Of Arkansas, Fayetteville. Faculty Senate

Faculty Senate Minutes

No abstract provided.

Annual Report, 2013, University Of Arkansas, Fayetteville. Dale Bumpers College Of Agricultural, Food And Life Sciences. Dept. Of Biological And Agricultural Engineering

Biological and Agricultural Engineering Department Annual Report

No abstract provided.

Annual Report, 2012-2013, University Of Arkansas, Fayetteville. Division Of Student Affairs

Division of Student Affairs Annual Reports

No abstract provided.

Partners, January 2013, Dale Bumpers College Of Agricultural, Food, And Life Sciences (University Of Arkansas, Fayetteville). Center Of Excellence For Poultry Science

Partners

No abstract provided.

Walton Perspective, Summer 2013, Sam M. Walton College Of Business

Walton Perspective

"The alumni magazine of the Sam M. Walton College of Business at the University of Arkansas."

Undergraduate Catalog Of Studies, 2012-2013, University Of Arkansas, Fayetteville

Undergraduate Catalog of Studies

No abstract provided.

A+, The Honors College, 2013, University Of Arkansas, Fayetteville. Honors College

A+ Magazine

No abstract provided.

Annual Report, 2012-2013, University Of Arkansas, Fayetteville. College Of Education And Health Professions

College of Education and Health Professions Annual Reports

Beginning in 2004/2005- issued in online format only

Community Fact Sheet: Assessing Health, Well-Being, And Food Insecurity Among 5th-7th Grade Students, Kevin Fitzpatrick, Don Edward Willis, Gail O'Connor

Food Insecurity

In September, 2012, a team of trained interviewers administered a comprehensive survey to 334 5th-7th grade students attending Owl Creek School in Fayetteville, Arkansas. With nearly 70 percent of students eligible for free and reduced lunch, the survey was interested in examining children’s health, well-being, their social relationships, and food insecurity.

Razorback Athletics Annual Report, 2012-2013, University Of Arkansas, Fayetteville. Dept. Of Intercollegiate Athletics

Razorback Athletics Annual Report

No abstract provided.

Arkansauce, 2013, University Of Arkansas, Fayetteville. Libraries

Arkansauce

No abstract provided.

Cost-Benefit Analysis Of Farmer Training In Ghanaian Cocoa Farming, Mike Norton

Inquiry: The University of Arkansas Undergraduate Research Journal

While billions of dollars flow into low-income countries each year to ease poverty, assessing their effectiveness beyond the life of a development program proves challengin. In 2009, the World Cocoa Foundation (WCF) undertook the Cocoa Livelihoods Program (CLP) to strengthen cocoa-growing communities with training and credit programs. Using primary 2010-2011 production data collected in Ghana, this study estimates the net present value (NPV) change associated with CLP training over 50 years (two cocoa tree life cycles), assuming producers can utilize what they have learned well after the courses are completed. Applying regression analyses to determine the effect of CLP on …

Communicating Product Sustainability: Consumer Responses To Sustainability Labeling In A Retail Laboratory Environment, Siqi Feng

Inquiry: The University of Arkansas Undergraduate Research Journal

In effort to enhance sustainable development, manufacturers and retailers have collaborated to develop a standardized sustainability index based on supply chain life cycle information. However, it is unclear whether this index will help consumers make more sustainable purchases. Research conducted in a retail laboratory addresses consumer attitudes, purchase intentions, and product choices with and without a credible standardized sustainability index, and with or without provision of background sustainability information. Results from a pilot study and two mixed design experiments indicate that, on average, consumers focus more on brand equity than on sustainability levels when they make brand choices. While the …

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 14 2013, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Letter From The Dean, Michael Vayda

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Influence Of Organic Groundcovers On Mycorrhizal Colonization And Symbiosis Of Organically Managed Fruit Crops, Raven Anai Bough, Curt R. Rom

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Ground covers have the potential to impact the crop rhizosphere biology, which includes organisms such as arbuscular mycorrhizal fungi (AMF), which in turn affect the crop host plant through symbiosis. There has been evidence that a ground cover that provides a suitable environment for colonization of AMF and subsequent symbiosis could be a tool in organic fruit production. The objective of this research was to compare colonization of AMF in strawberry plant (Frageria x ananassa cv. Radiance) and apple rootstocks (Malus x domestica, cv. M. 26) grown in a greenhouse affected by various ground cover treatments. Inoculation was achieved by …

The Influence Of Poultry Litter Biochar On Early Season Cotton Growth, Taylor D. Coomer, David E. Longer, Derrick M. Oosterhuis, Dimitra A. Loka

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Cotton is known for being sensitive to cool, wet soils, especially in the early stages of growth. Amendments to soil can aid cotton seedlings in development and nutrient uptake. However, soil amendments can be costly and detrimental to the environment, and alternatives such as the addition of biochar have been considered. Biochar is produced from biomass that has gone through pyrolysis and has been shown to improve plant yield, microbial response, soil structure, soil cation–exchange capacity, and water use efficiency. This study was conducted to evaluate the effect of biochar on early season cotton growth. The aim of this study …

Nutrient Contents, Color, Texture, And Sensory Evaluation Of 12 Arkansas Grown Soybean Cultivars In Canned Products, Quyen Nguyen, Navam Hettiarachchy, Srinivas J. Rayaprolu

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Soybean was introduced in the U.S. in the 1800s, and it has been proven to have several health benefits. New cultivars of soybeans with varying hull colors have been developed using plantbreeding technology. Canning is one of the effective processing methods to extend the shelf life of products. However, very little information is available on canned soybeans. This research studied the composition of 12 soybean cultivars including two cultivars with brown seed coat (R08-4014 and R09-349), three cultivars with black seed coat (R07-1927, R07-10396, and R09-345), and seven regular cultivars with yellow seed coat (R05-1772, R05-4969, R07-2001, R08-4005, R08- 4006, …

Textural And Sensory Qualities Of Muffins Prepared With Fermented Rice Bran, Breeanna Williams, Navam Hettiarachchy, Srinivas J. Rayaprolu

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Rice is one of the most popular cereal grains in the world. Rice bran, a by-product of the rice milling process, contains an abundance of nutrients including protein, fiber, vitamin B complex, vitamin E, and other nutraceuticals. However, rice bran is underutilized in the food industry. In this project muffins were prepared with varying concentrations (2.5%, 5.0%, 7.5%, 10.0%, 15.0%, 20.0%, and 25.0%) of 60 mesh (250 µm) fermented rice bran (60 mFRB) and 80 mesh (180 µm) fermented rice bran (80 mFRB). A cappuccino muffin formulation was used as flavor for all the samples. The control sample was prepared …