Agricultural Science Commons^™

Sweet Sorghum As An Alternative Cellulosic Biofuel In Eastern Kentucky, Sarah A. Hazenfield

Morehead State Theses and Dissertations

A thesis presented to the faculty of the College of Science and Technology at Morehead State University in partial fulfillment of the requirements for the Degree of Master of Science by Sarah A. Hazenfield in June of 2011.

Soil Test And Phosphorus Rate For High Rainfall Clover Pastures, Robert Summers, David Weaver

Bulletins 4000 -

Essential information for soil testing to determine the phosphorus fertiliser requirements for clover pastures in high rainfall coastal areas of Western Australia. Includes procedures for soil sampling, tissue testing, liming, when to apply fertiliser, how to decide on the target production level, how much fertiliser is required and type of fertiliser.

Grinders Convert Sorghum Into Flour, Intsormil

INTSORMIL Impacts and Bulletins

To help contend rising wheat costs Central American bakers are looking for alternative ways to produce their baked products at a low cost without sacrificing nutritional value or taste. Sorghum flour is the answer to their problems. Sorghum flour is about half the cost of wheat flour so using sorghum flour helps bakers save money and make more of a profit. Particle size of sorghum flour must be sufficiently fine in order to substitute for wheat flour in baking recipes. However, small grinders adequate for family level bakers have not been available in Central America. That is until a collaborative …

Uso De Molinos Cti Para La Produccion Y Uso De Harina De Sorgo, Intsormil

INTSORMIL Impacts and Bulletins

Para ayudar a lidiar con el aumento de los costos de trigo en Centro América, los panaderos están buscando formas alternativas para producir sus productos de panadería a un bajo costo sin sacrificar el valor nutritivo o sabor. La harina de sorgo es la respuesta a sus problemas. La harina de sorgo es de aproximadamente la mitad del costo de la harina de trigo, por lo que usar harina de sorgo puede ayudar a los panaderos a ahorrar dinero y disminuir costos de produccion. El tamaño de partícula de la harina de sorgo debe ser lo suficientemente fino como para …

Generation Of Transgenic Medicago Sativa Overexpressing "Osmotin-Chitinase" Gene Chimera, Jahnavi Reddy Kancharla

Masters Theses & Specialist Projects

Medicago is widely used as a forage crop. It is often susceptible to various pathogenic infections and exhibits low growth in drought and extreme climatic conditions. In the current study, a strategy was developed for over-expressing an “Osmotin-Chitinase” gene chimera in transgenic Medicago that could potentially confer resistance to different biotic and abiotic stresses. Seed germination of several cultivars of Medicago (M. sativa ssp. sativa, M. sativa ssp. falcata, M. sativa ssp. caerulea, M. truncatula, and M. Rugosa) was tested to determine the cultivars with good germination rates. Among these, M. sativa ssp. sativa showed an …

Economic Impacts Of Drought On Kentucky Corn, Hay, And Soybeans, Kortney E. Craft

Masters Theses & Specialist Projects

Understanding climatic impacts is important if we are to comprehend the relationship between climate and society. Weather phenomena can have environmental, economical, and social impacts. Drought is the natural hazard that affects people the most. It is also the most complex and least understood. There is no one universally accepted definition for drought which makes its examination difficult. Droughts’ duration is also difficult to determine because it has no clearly defined onset and end. Also, drought varies both geographically and temporally making uniform drought monitoring difficult. Since drought is difficult to monitor and access, drought impacts are often poorly documented. …

Establishing Weed Prevention Areas And Evaluating Their Impact, Stephanie Christensen

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The spread of invasive weeds continues to be a serious economic and environmental threat. Weed prevention has the potential to stop weeds before they become well established in an area conserving time, energy, and resources. Unfortunately, weed prevention is often overlooked. Weed Prevention Areas (WPAs) are a relatively new tool developed to help improve the application of weed prevention. They are cooperatively managed areas that focus on implementing prevention and early detection strategies at a community level. The purpose of this research was to establish baseline data that will be used to evaluate the overall effectiveness of the WPA concept, …

Comparison Of Whole-Genome Amplifications For Microsatellite Genotyping Of Rotylenchulus Reniformis, R. S. Arias, Salliana R. Stetina, Brian E. Scheffler

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Currently, a large number of microsatellites are available for Rotylenchulus reniformis (reniform nematode); however, two barriers exist for genotyping samples from different geographical areas. The limited amount of nucleic acids obtained from single nematodes which would require their multiplication to obtain enough DNA for testing; and the strictly regulated transport of live samples and multiplication in greenhouse for being a plant pathogen. Whole-genome amplification (WGA) of samples consisting of one and five dead gravid females with their associated egg masses was successfully performed on disrupted tissue using three commercial kits. DNA yield after WGA ranged from 0.5 to 8 μg …

First Microsatellites From Spodoptera Frugiperda (Lepidoptera: Noctuidae) And Their Potential Use For Population Genetics, R. S. Arias, Carlos A. Blanco, Maribel Portilla, Gordon L. Snodgrass, Brian E. Scheffler

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

This is the first report of sequence-specific microsatellite markers (simple sequence repeats [SSRs]) of fall armyworm, Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae), an economically important pest of crops on the Americas.Weisolated 192 microsatellite markers by using pyrosequencing and screened 15 individuals from eight isofamilies collected from three geographical areas: Puerto Rico (PR), Texas (TX), and Mississippi (MS). Isofamilies resistant to Cry toxins from Bacillus thuringiensis (Berliner) (Bacillales: Bacillaceae) also were included. Cluster analysis was performed to determine the potential use of these SSRs in discriminating populations, and colonies were grouped with a reliability of 100% estimated by bootstrap. In this …

Summaries Of Arkansas Cotton Research 2010, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

The Transfer Of Agricultural Water To Municipal And Industrial Usages, Dallin Paul Stephens

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The water that is available for beneficial use in Utah is quickly approaching full appropriation; water that has been claimed is nearing the amount that is available for use. The Division of Water Resources of the State of Utah has organized a three-part plan to "Plan, Conserve, Develop and Protect Utah's Water Resources." One of these three elements has a focus to "provide comprehensive water planning." Such planning is best achieved when current and accurate data on the uses of the state's water are available.

The primary purpose of this thesis was to provide an evaluation, from data collected on …

Duration Analysis Of Technology Adoption Effects Of Dissemination Pathways: A Case Of 'Push-Pull' Technology For Control Of Striga Weeds And Stemborers In Western Kenya, A. W. Murage, G. Obare, J. Chianu, D. M. Amudavi, J. Pickett, Z. R. Khan

All Peer-Reviewed Publications

Since its introduction, the 'push-pull' technology (PPT) has been promoted as an innovative approach for addressing yield losses caused by Striga weeds and stemborer infestations on farmers' maize fields in western Kenya. The technology has been disseminated through different pathways each of which might have different uptake enhancement capabilities. This study was concerned with how different dissemination pathways impacted on farmers' time to adoption while controlling the effects of selected socio-economic and regional factors. This assessment was necessary in order to recommend which dissemination pathway or combination of pathways that could provide an effective dissemination strategy that speed up adoption, …

Screening Synteny Blocks In Pairwise Genome Comparisons Through Integer Programming, Haibao Tang, Eric Lyons, Brent S. Pedersen, James C. Schnable, Andrew H. Paterson, Michael Freeling

Department of Agronomy and Horticulture: Faculty Publications

Background:

It is difficult to accurately interpret chromosomal correspondences such as true orthology and paralogy due to significant divergence of genomes from a common ancestor. Analyses are particularly problematic among lineages that have repeatedly experienced whole genome duplication (WGD) events. To compare multiple “subgenomes” derived from genome duplications, we need to relax the traditional requirements of “one-to-one” syntenic matchings of genomic regions in order to reflect “one-to-many” or more generally “many-to-many” matchings. However this relaxation may result in the identification of synteny blocks that are derived from ancient shared WGDs that are not of interest. For many downstream analyses, we …

Malian Thick Porridges And Satiety, Intsormil

INTSORMIL Impacts and Bulletins

A study was recently conducted through INTSORMIL (Purdue Hamaker Project) to examine thick sorghum millet consumption related to preference and satiation in the Sikasso, Segou and Mopti regions of Mali. This is part of a larger study to understand the effect of thick porridges, and delayed glucose delivery to the body, on satiety and overall food consumption.

The conclusions from the following data is that porridges (tô) are generally eaten more frequently and are consumed in a thicker consistency in the villages (Figures 1 and 2), and are very satiating (Figure 3 thicker porridges correlated with lower hunger scores at …

A First Insight Into Population Structure And Linkage Disequilibrium In The U.S. Peanut Minicore Collection, Vikas Belamkar, Michael Gomez Selvaraj, Jamie L. Ayers, Paxton R. Payton, Naveen Puppala, Mark D. Burow

Department of Agronomy and Horticulture: Faculty Publications

Knowledge of genetic diversity, population structure, and degree of linkage disequilibrium (LD) in target association mapping populations is of great importance and is a prerequisite for LD-based mapping. In the present study, 96 genotypes comprising 92 accessions of the US peanut minicore collection, a component line of the tetraploid variety Florunner, diploid progenitors A. duranensis (AA) and A. ipaënsis (BB), and synthetic amphidiploid accession TxAG-6 were investigated with 392 simple sequence repeat (SSR) marker bands amplified using 32 highly-polymorphic SSR primer pairs. Both distance- and model-based (Bayesian) cluster analysis revealed the presence of structured diversity. In general, the wild-species accessions …

Genes Identified By Visible Mutant Phenotypes Show Increased Bias Toward One Of Two Subgenomes Of Maize, James C. Schnable, Michael Freeling

Department of Agronomy and Horticulture: Faculty Publications

Not all genes are created equal. Despite being supported by sequence conservation and expression data, knockout homozygotes of many genes show no visible effects, at least under laboratory conditions. We have identified a set of maize (Zea mays L.) genes which have been the subject of a disproportionate share of publications recorded at MaizeGDB. We manually anchored these ‘‘classical’’ maize genes to gene models in the B73 reference genome, and identified syntenic orthologs in other grass genomes. In addition to proofing the most recent version 2 maize gene models, we show that a subset of these genes, those that …

Dose–Sensitivity, Conserved Non-Coding Sequences, And Duplicate Gene Retention Through Multiple Tetraploidies In The Grasses, James C. Schnable, Brent S. Pedersen, Sabarinath Subramaniam, Michael Freeling

Department of Agronomy and Horticulture: Faculty Publications

Whole genome duplications, or tetraploidies, are an important source of increased gene content. Following whole genome duplication, duplicate copies of many genes are lost from the genome. This loss of genes is biased both in the classes of genes deleted and the subgenome from which they are lost. Many or all classes are genes preferentially retained as duplicate copies are engaged in dose sensitive protein–protein interactions, such that deletion of any one duplicate upsets the status quo of subunit concentrations, and presumably lowers fitness as a result. Transcription factors are also preferentially retained following every whole genome duplications studied. This …

Inta Segovia, A New Sorghum Variety For The Dry Zones Of Nicaragua, Intsormil

INTSORMIL Impacts and Bulletins

The Sandanista Government through the Instituto Nicaraguense de Tecnologia (INTA) officially released the new improved sorghum variety, INTA Segovia on January 14, 2011. This improved variety will benefit the resource-poor farmers that grow sorghum on the hillsides (see photo) in dry zones (40 percent of the land area in Nicaragua). This variety will have a significant economic impact in Nicaragua and in neighboring countries as it produces well in drought prone areas which lack sufficient rainfall for growing maize. INTA Segovia, under drought conditions, produces higher yields than currently grown sorghum varieties. Drought tolerance is due to the large root …

Proceedings Of The 38th Annual Meeting, Southern Soybean Disease Workers (March 9-10, 2011, Pensacola Beach, Florida), Boyd Padgett, Tom Allen, Jason Bond, Cliff Coker, Stephen R. Koenning

Southern Soybean Disease Workers: Conference Proceedings

Contents

Southern United States Soybean Disease Loss Estimates for 2010. Compiled by SR Koenning

Poster presentation

Soybean Varieties and Breeding Lines Shown With Resistance to Reniform Nematode in Greenhouse Tests, 1998-2010 R. T. Robbins, and L. E. Jackson

Oral presentations

Frogeye Leaf Spot (Cercorosa sojina) symposium (Boyd Padgett, moderator)

Development of Baseline Cercospora sojina Sensitivity Levels to Quinone Outside Inhibitor Fungicides and Monitoring for Resistance. GR Zhang and CA Bradley

Soybean Pathogen Found to be Resistant to Fungicides MA Newman and CA Bradley

Strobilurin-resistant Cercospora sojina in Kentucky: Field History. D Hershman

Graduate student paper competition (Tom Allen, …

Comparison Of Various Configurations Of Cdc-Type Traps For The Collection Of Phlebotomus Papatasi Scopoli In Southern Israel, Daniel L. Kline, Jerome Hogsette, Gunter Muller

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

We conducted two experiments to determine the best CDC-trap configuration for catching male and female Phlebotomus papatasi. First, visual features were evaluated. Standard CDC traps were modified to have black or white catch bags, black or white lids, or no lids and these were tried in different combinations. Significantly more male sand flies were caught by darker traps; significantly more females were captured by traps with either all black or a combination of black and white features. Attraction may be due to dark color or contrast in colors. CDC traps with suction and the following features were also evaluated: …

Wayne E. Sabbe Arkansas Soil Fertility Studies 2010, 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 Fundamentals Of Nutrient Management, Rhonda Miller, Clark Israelsen, Jim Bowcutt, Neils Hansen

All Current Publications

This publication gives best management practices of nutrient management in livestock and dairy facilities.

Instalan Molino Para Producir Harina De Sorgo: Con Este Molino Se Prevé Procesar, Al Mes, Alrededor De 48 Quintales De Harina, Berta Nely Menjívar

INTSORMIL Impacts and Bulletins

Panificadores de la Asociación Cooperativa de Cuscatlán (ACPACUS de R. L.), aglutinados en la Mesa Nacional de Panificadores de El Salvador (MENAPAES), en compañía de autoridades del Centro Nacional de Tecnología Agropecuaria y Forestal Enrique Álvarez Córdova (CENTA) y del Instituto para la Investigación del Sorgo y Mijo (INTSORMIL), inauguraron la puesta en marcha del primer molino de martillo, con el cual estarán procesando harina de sorgo (maicillo) para utilizarla en la industria de la panificación.

La adquisición de este molino es uno de los primeros esfuerzos de la MENAPAES en la búsqueda de otras materias primas para la producción …

Sorghum And Millet Research Program Receives Grant, Daily Nebraskan

INTSORMIL Impacts and Bulletins

The International Sorghum and Millet Collaborative Research Support Program (INTSORMIL) at the University of Nebraska-Lincoln recently received a $1.1 million grant to work with Central American countries to increase sorghum foliage.

A Rain Garden Grows In Bridgeport, Michael Dietz

Wrack Lines

Rain gardens can be used to help communities adapt to climate change. A warmer New England means more precipitation, which means more polluted runoff water--unless a rain garden, planted in a depression, can sequester the excess water and use it to grow attractive plants.

Managing Complexity In Modern Farming, Ross Kingwell

Natural Resources Research Articles

Modern farming in Australia is no longer simple. Farms are large, multi-enterprise businesses underpinned by expensive capital investments, changing production technologies, volatile markets and social challenges. The complexity of modern broadacre farming leads to the question: what is the nature of the relationship between farm business complexity and farm profitability? This study uses bioeconomic farm modelling and employs eight measures of complexity to examine the profitability and complexity of a wide range of broadacre farming systems in Australia. Rank order correlations between farm profitability and each measure of complexity show inconsistent relationships, although the most profitable farming systems are found …

Intsormil Information, Daily Nebraskan

INTSORMIL Impacts and Bulletins

The International Sorghum and Millet Collaborative Research Support Program (INTSORMIL) at the University of Nebraska-Lincoln recently received at $1.1 million grant to work with Central American countries to increase sorghum foliage.

Report Of Nine Sorghum Flour Workshops, Report For Intsormil; Subject: “Utilization Of Cti Grinders For Small Scale Sorghum Flour Production In Central America”, Intsormil

INTSORMIL Scientific Publications

In Nicaragua, Sorghum grain has been a crops using only for animal feed. Fortunately Scientifics have been researched about its nutritional sorghum grain properties and some of the country that they have been interested to bring the technology about sorghum flour has been Nicaragua because its growths in 3 big areas; in the north, south and west region. Now, that is knew their characteristics and others, so INTA and INTSORMIL are diffusing the technology about sorghum flour to increase the production of sorghum grain, reduce the cost production of bread and some ethnics drinks, to improve the food security and …

Switchgrass, Kenneth P. Vogel, Gautam Sarath, Aaron J. Saathoff, Robert B. Mitchell

Department of Agronomy and Horticulture: Faculty Publications

17.1 Introduction

Switchgrass (Panicum virgatum L.) is a warm-season perennial grass that is native to North America that is being developed into a biomass energy crop. It has been used in pastures and for conservation purposes in the Great Plains and the Midwest, USA, for over 70 years.1 The research supporting its use as a pasture and conservation species was largely conducted by US Department of Agriculture (USDA) research programs, most notably the Agricultural Research Service (ARS) project located at the University of Nebraska-Lincoln and USDA Plant Materials Centers that are located throughout the United States. In this report, …

Identification Of A Second Asian Soybean Rust Resistance Gene In Hyuuga Soybean, Mandy D. Kendrick, Donna K. Harris, Bo-Keun Ha, D. L. Hyten, P. B. Cregan, Reid D. Frederick, H. Roger Boerma, Kerry F. Pedley

Department of Agronomy and Horticulture: Faculty Publications

Asian soybean rust (ASR) is an economically significant disease caused by the fungus Phakopsora pachyrhizi. The soybean genes Rpp3 and Rpp?(Hyuuga) confer resistance to specific isolates of the pathogen. Both genes map to chromosome 6 (Gm06) (linkage group [LG] C2). We recently identified 12 additional soybean accessions that harbor ASR resistance mapping to Gm06, within 5 centimorgans of Rpp3 and Rpp?(Hyuuga). To further characterize genotypes with resistance on Gm06, we used a set of eight P. pachyrhizi isolates collected from geographically diverse areas to inoculate plants and evaluate them for differential phenotypic responses. …