Agriculture Commons^™

The Relationship Between Black Point And Fungi Species And Effects Of Black Point On Seed Germination Properties In Bread Wheat, Faruk Toklu, Davut Soner Akgül, Mehmet Bi̇çi̇ci̇, Tolga Karaköy

Turkish Journal of Agriculture and Forestry

This study was undertaken to investigate the relationship between some fungi species and black point incidence and the effect of black point on seed weight, germination percentage, seedling emergence, seedling establishment, number of embryonic roots, and coleoptile length under field conditions in bread wheat. In this research, black-pointed and black point-free kernel samples of 5 bread wheat cultivars, namely Ceyhan-99, Doğankent-1, Yüreğir-89, Seyhan-95, and Adana-99 - commonly grown under the agroclimatic conditions of Çukurova Region, were used. Isolations from the black point-affected and black point-free kernels indicated that Alternaria spp. are the predominant fungi, followed by Chaetomium sp and Aspergillus …

4th Lone Star Regional Native Plant Conference, David Creech, Greg Grant, James Kroll, Dawn Stover

Lone Star Regional Native Plant Conference

No abstract provided.

Book 2 (Dogwood), Mandarin Garden Club

Mandarin Garden Club Scrapbooks

Dogwood Book 2 scrapbook includes images, news articles, and 3-d embellishments, covers years 2006-2008. Cover material: Cloth with plastic cover. Size: 12.5” x 13.5” x 2.0625”.

Bumblebees 2007-2008, Mandarin Garden Club

Mandarin Garden Club Scrapbooks

Scrapbook includes leaflets, pamphlets, images and news clippings. Cover material: Cardboard. Size: 10” x11” x 1.0625 Date: 2007-2008

2005-2008 #1 And #2, Mandarin Garden Club

Mandarin Garden Club Scrapbooks

Scrapbook includes images, club news and news clippings. Cover material: Cardboard. Size: 12.5" x 13.5" x 1.75".

Whole-Plant Mineral Partitioning Throughout The Life Cycle In Arabidopsis Thaliana Ecotypes Columbia, Landsberg Erecta, Cape Verde Islands, And The Mutant Line Ysl1ysl3, Brian M. Waters, Michael A. Grusak

Department of Agronomy and Horticulture: Faculty Publications

Minimal information exists on whole-plant dynamics of mineral flow through Arabidopsis thaliana or on the source tissues responsible for mineral export to developing seeds. Understanding these phenomena in a model plant could help in the development of nutritionally enhanced crop cultivars. A whole-plant partitioning study, using sequential harvests, was conducted to characterize growth and mineral concentrations and contents of rosettes, cauline leaves, stems, immature fruit, mature fruit hulls, and seeds of three WT lines (Col-0, Ler, and Cvi) and one mutant line (Col-0::ysl1ysl3). Shoot mineral content increased throughout the life cycle for all minerals, although tissue-specific …

Quantitative Trait Locus Mapping For Seed Mineral Concentrations In Two Arabidopsis Thaliana Recombinant Inbred Populations, Brian M. Waters, Michael A. Grusak

Department of Agronomy and Horticulture: Faculty Publications

Biofortification of foods, achieved by increasing the concentrations of minerals such as iron (Fe) and zinc (Zn), is a goal of plant scientists. Understanding genes that influence seed mineral concentration in a model plant such as Arabidopsis could help in the development of nutritionally enhanced crop cultivars. Quantitative trait locus (QTL) mapping for seed concentrations of calcium (Ca), copper (Cu), Fe, potassium (K), magnesium (Mg), manganese (Mn), phosphorus (P), sulfur (S), and Zn was performed using two recombinant inbred line (RIL) populations, Columbia (Col) × Landsberg erecta (Ler) and Cape Verde Islands (Cvi) × Ler, grown …

Inorganic And Organic Phosphorus Interactions With Hydroxy-Interlayered Soil Minerals, Paul D. Shumaker Ii

University of Kentucky Master's Theses

Phosphorus (P), a necessary plant and animal nutrient, can also lead to eutrophication of fresh waters when in excess. Appropriate P management is necessary to prevent fresh water pollution. Mineralogy of soil clays has been shown to affect P adsorption, desorption, and movement through soils. Specifically, hydroxy-interlayered minerals have been shown to adsorb and retain inorganic P in soil systems. This study was designed to determine the sorption and desorption characteristics of inorganic, organic, and mixed forms of P interacting with soil hydroxy-interlayered vermiculites (HIV) and smectites (HIS), and compare the findings to sorption and desorption processes of natural aluminum …

Quantifying Cellulase In High-Solids Environments, Alicia Renée Abadie

University of Kentucky Master's Theses

In recent years, fungal and bacterial cellulases have gained popularity for the conversion of lignocellulosic material to biofuels and biochemicals. This study investigated properties of fungal (Trichoderma. reesei) and bacterial (Clostridium thermocellum) cellulases. Enzymatic hydrolysis was carried out with T. reesei using nine enzyme concentration and substrate combinations. Initial rates and extents of hydrolysis were determined from the progress curve of each combination. Inhibition occurred at the higher enzyme concentrations and higher solids concentrations. Mechanisms to explain the observed inhibition are discussed. Samples of C. thermocellum purified free cellulase after 98% hydrolysis were assayed to determine …

Setting Targets For Resource Condition In Narrakine Gully And Highbury Catchments, Leon Van Wyk, Gregory Paul Raper

Resource management technical reports

No abstract provided.

Agroecossistemas Orizícolas Irrigados: Insetos-Praga, Imimigos Naturais E Manejo Integrado, Leila Lucia Fritz, Elvis Arden Heinrichs, Marciele Pandolfo, Silvia Martins De Salles, Jaime Vargas De Oliveira, Lidia Mariana Fiuza

Department of Entomology: Faculty Publications

Nos ecossistemas de produção de arroz irrigado, os insetos-praga são considerados uma das limitações na produção mundial. Diante desse fato, diversas formas de controle vêm sendo pesquisadas para minimizar o problema. O uso contínuo de produtos fitossanitários ocasiona a resistência das pragas, além do aumento da população de pragas secundárais. Como alternativa, o uso do controle biológico, através de inimigos naturais, como predadores, parasitóides e patógenos, se revela capaz de regular as pragas em seu ambiente natural, reduzindo a densidade das populações e conseqüentemente os danos às plantas hospedeiras. Sendo assim, nesse trabalho de revisão são apresentados dados sobre a …

Spatial Economics Of The Louisiana Wetland Mitigation Banking Industry, Ryan Joseph Bourriaque

LSU Master's Theses

Bourriaque, Ryan Joseph, B.A. Louisiana State University, 2005 Master of Science, Summer Commencement, 2008 Major: Agricultural Economics Spatial Economics of the Louisiana Wetland Mitigation Banking Industry Thesis directed by Assistant Professor Rex Caffey Pages in thesis, 86. Words in abstract, 265. ABSTRACT Wetland mitigation banking has become prevalent in many states across the US, with the number of banks increasing 780% from 1992 to 2005. Louisiana led the nation in the total number of banks in 2006 with 96. Despite rapid growth associated with this industry, economic data in regards to the market for wetland mitigation bank transactions has been …

Analysis Of The Impact And Importance Of Re-Wholesalers In The Ornamental Market, Marco Absalón Velástegui

LSU Master's Theses

Sales by ornamental nurseries in the United States have grown, recently, at an impressive rate. For example, sales of the greenhouse and nursery crops component increased about 18% from 2000 to 2006 (USDA, 2007). The evolution of a diverse set of market channel alternatives, including the garden center, landscaper, home center, mass merchandiser and re-wholesaler channels, has been one of the reasons for this growth. Knowledge about growers’ use of the individual marketing channels is indispensable for the development of appropriate sales strategies for better income and profits. Periodic survey data indicates that the re-wholesaler channel is a frequently used …

Antidumping Investigation In Agriculture: Issues Of Trade Diversion-Named Vs Non-Named Countries, Nandini Bandyopadhyay

LSU Master's Theses

This study addresses the issue of antidumping investigations and their effect on trade of agricultural products. The question which this study addresses is whether antidumping is helping domestic industries or is simply diverting trade away from the named countries to the non- named countries (countries not mentioned in the antidumping petition). Antidumping has emerged as an important tool in the hands of importing countries over the last two decades The World Trade Organization (WTO) has defined dumping as a situation of international price discrimination. Dumping occurs when exporting countries are selling the product in the international market at a price …

Estimating The Economic Impacts Of Hurricane Damage On Coastal Fishing Infrastructure, Tanza Erlambang

LSU Master's Theses

Two severe Hurricanes, Katrina and Rita, caused devastating damages in the northern Gulf of Mexico during late summer and early fall 2005. Louisiana was the most heavily impacted state, where both storms made initial landfall. The storms caused billions of dollars in damages to public and private infrastructure, with particularly strong impacts to coastal fishing businesses. Numerous assessments of coastal fisheries infrastructure damage were developed by state and federal agencies following the storms. The range of estimates varied greatly (from $275 million to $3.5 billion), because of a wide range of methods and assumptions. This study describes two alternative damage …

Stocking Strategies For Production Of Litopenaeus Vannamei (Boone) In Amended Freshwater In Inland Ponds, Bartholomew W. Green

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

The performance of the Pacific white shrimp Litopenaeus vannamei (Boone) under various stocking strategies was evaluated in earthen ponds filled with freshwater amended with major ions. Six 0.1-ha earthen ponds located in Pine Bluff, Arkansas, USA, were filled with freshwater in 2003 and 2004, and potassium magnesium sulfate added to provide 50 mg K⁺ L^-1 and stock salt added to provide 0.5 g L^-1 salinity. In 2003, three ponds either were stocked with PL₁₅ shrimp (39 PL m^-2) for 125 d of grow out or with PL₂₅ shrimp for a 55-d (23 PL …

Assessing The Demand For Weather Index Insurance In Shandong Province, China, Lisha Zhang

University of Kentucky Master's Theses

Shandong Province, renowned as China’s greatest agricultural province, is dominated by smallholders growing rain-fed crops and vulnerable to severe weather shocks that can increase poverty rates. Weather index insurance, an innovative agricultural risk management product, may be an effective mechanism to address vulnerability to catastrophic weather risk in rural regions of China, including Shandong. This project evaluated current household livelihood and risk management strategies and farmer interest in weather index insurance. Data from 174 participants were collected using a methodology that included focus groups, questionnaires, and personal interviews. Despite limited access to formal financial services, Shandong farmers generally employ informal, …

Content Preparation Of Pre-Service Agricultural Education Teachers And Its Influence On Their Content Knowledge, Amber Houck

University of Kentucky Master's Theses

Content knowledge preparation for teachers is a crucial component of the modal curriculum model for education. The purpose of this study was to determine if the amount and quality of coursework preparation of pre-service University of Kentucky agriculture teachers influences their content knowledge as defined by the Praxis II agriculture exam scores. This study concluded that there was variability in coursework preparation of pre-service agriculture teachers at the University of Kentucky. Praxis II exam scores of pre-service teachers indicated that most students are meeting an adequate content knowledge level based on the exam material. It can also be concluded that …

An Analysis Of Kentucky Equestrian Trail Riders: Determining Rider Behaviors And Valuing Site Amenities That Contribute To Repeat Visits, Katharine Auchter

University of Kentucky Master's Theses

The purpose of this travel cost study is to determine how rider behaviors and site characteristics influence repeat visits for equestrian trail riding in Kentucky. Primary data was collected via a survey developed and administered to trail riders in person and online. The average surveyed trail rider tends to be female, about 46 years old, with some higher education, and an annual household income of $65,000. She makes 11 trips to a specified site per year, 8 of which are daytrips, usually in the fall, and traveling 132 miles round trip. From other information gathered, an index of trail characteristics …

Microbial Community Structure Dynamics In Ohio River Sediments During Reductive Dechlorination Of Pcbs, Andres Enrique Nunez

University of Kentucky Doctoral Dissertations

The entire stretch of the Ohio River is under fish consumption advisories due to contamination with polychlorinated biphenyls (PCBs). In this study, natural attenuation and biostimulation of PCBs and microbial communities responsible for PCB transformations were investigated in Ohio River sediments.

Natural attenuation of PCBs was negligible in sediments, which was likely attributed to low temperature conditions during most of the year, as well as low amounts of available nitrogen, phosphorus, and organic carbon. Moreover, surface sediments were relatively oxidized, as indicated by the prevalence of aerobic bacteria such as beta- Proteobacteria, alpha-Proteobacteria, Sphingobacteria, and Nitrospira in 16S rRNA sediment …

Colloid Mediated Transport Of Heavy Metals In Soils Following Reclamation With And Without Biosolid Application, Jarrod O. Miller

University of Kentucky Doctoral Dissertations

Soils disturbed by strip mining practices may have increased colloid loads moving to groundwater resources, also enhancing the transport of contaminants into our water resources. We hypothesize that contaminant transport within soils following mining is enhanced by colloid mobility. Two sites were chosen for this study, a 30-year old reclaimed strip mine in southwest Virginia and a recently mined area from eastern Kentucky. Intact reclaimed soil monoliths were retrieved from sandstone derived soils in southwestern Virginia. Reclaimed monoliths from eastern Kentucky were recreated in the lab. Intact undisturbed (native) soil monoliths representing the soils before mining were also sampled for …

The Role Of Spiders In The Detrital Food Web Of An Eastern Deciduous Forest, Erin Elizabeth Hladilek

University of Kentucky Doctoral Dissertations

Historically, terrestrial food web research has focused on describing the structure of aboveground grazing webs, and determining how interactions among plants, herbivores and higher trophic levels influence primary productivity. Detrital food webs however, play a significant role in regulation of ecosystem dynamics through direct impacts on decomposition. Unraveling the complex nature of detrital food web structure is critical to developing a better understanding of ecosystem function. Therefore the primary objective of this research was to describe the structure of the leaf-litter food web in a temperate deciduous forest, with emphasis on interactions between a community of generalist predators, the forest-floor …

Map-Based Cloning Of An Anthracnose Resistance Gene In Medicago Truncatula, Shengming Yang

University of Kentucky Doctoral Dissertations

Anthracnose, caused by the fungal pathogen Colletotrichum trifolii, is one of the most destructive diseases of alfalfa worldwide. Cloning and characterization of the host resistance (R) genes against the pathogen will improve our knowledge of molecular mechanisms underlying host resistance and facilitate the development of resistant alfalfa cultivars. However, the intractable genetic system of cultivated alfalfa, owing to its tetrasomic inheritance and outcrossing nature, limits the ability to carry out genetic analysis in alfalfa. Nonetheless, the model legume Medicago truncatula, a close relative of alfalfa, provides a surrogate for cloning the counterparts of many agronomically important genes in …

Vesicular Stomatitis In Cattle, Ann Justice Allen, Kerry A. Rood

All Current Publications

This publication lists definition, symptoms, warning signs, and recommended actions regarding vesicular stomatitis in cattle.

Teaching Risk Management Principles To Livestock Producers Through Production-Oriented Workshops, C Kim Chapman

All Current Publications

This bulletin explains how to effectively marry risk management education, which producers do not have a natural affinity for, and production-oriented education, which is usually very popular with producers. The Beehive Master Beef Manager Program is used as a model.

Native Perennial Grasses In Highway Medians: Pre- And Postplant Techniques For Establishment In A Mediterranean Climate, Stephen L. Young, Victor P. Claassen

West Central Research and Extension Center, North Platte

Within highway rights-of-way, native perennial grasses provide desirable services to support natural and human constructed ecosystems. However, native perennial grass establishment in annual grass dominated roadsides of semiarid and Mediterranean climates of the western United States requires specific cultural and chemical management treatments to control weeds. In 2004, field studies were conducted in Sacramento Valley, California to determine the effect of herbicide, disc cultivation, and species selection on native perennial grass establishment and annual weed persistence. Perennial grass species mixes common to drier and wetter upland areas in northern California were drill seeded at two sites (I-5 North and I-5 …