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A Systematic Study Of Xylella Fastidiosa Strains Isolated From Pecan, Grapevine, Oleander, And Sycamore In Louisiana, Rebecca Ann Melanson

LSU Master's Theses

Xylella fastidiosa causes disease in a number of economically important crops and landscape shrubs and trees including grapevine, citrus, oleander, and sycamore. In pecan, X. fastidiosa causes pecan bacterial leaf scorch (PBLS), which leads to defoliation and reduces nut yield. No economically effective treatments are available for PBLS. In order to improve PBLS management practices, it is necessary to determine the subspecies of X. fastidiosa strains that infect pecan so potential sources of inoculum can be identified. Multiprimer PCR and phylogenetic analyses using nucleotide sequence data from the 16S-23S rDNA intergenic transcribed spacer (ITS) region and pglA consistently identified strains …

Urban Dietary Heavy Metal Intake From Protein Foods And Vegetables In Dar Es Salaam, F. N. Ngassapa, O. C. Othman, E. Elisante

Tanzania Journal of Science

Contamination of food and food products by heavy metals has made dietary intake as one of the major routes of these harmful elements to human beings. The human dietary intake of heavy metals cadmium, copper, lead and zinc from protein-foods (beans, meat, fish, milk) and green vegetables consumed daily from restaurants and street food-vendor kiosks in Dar es Salaam were determined using the Total Diet Study (TDS) method. The cooked food was bought from the restaurants and street food-vendors at several city locations (i.e. Buguruni, Manzese, Mwenge, Temeke and Ubungo) over several months and analyzed. Heavy metal concentrations were determined …

Performance Of High Biomass Sorghum And Nitrogen Dynamics By The Application Of Urea, Pelleted Poultry Litter, And Class A Municipal Biosolids, Rakesh Awale

Student Theses and Dissertations

Increasing concern over the depleting fossil fuels and rising costs of chemical fertilizers have stimulated the need to find alternative crop biomass production through regionally available fertilizer sources. A field experiment was conducted to determine high biomass sorghum [(Sorghum bicolor (Moench) L.) dry matter yield, and N uptake due to application of urea, pelleted poultry litter, and class A municipal biosolids in two cropping systems of biomass sorghum and nitrogen use efficiencies of these three nutrient sources in northeast Arkansas in 2009. While urea, pelleted poultry litter, and class A municipal biosolids produced average high biomass sorghum dry matter yield …

Sorghum Malting, Luke Mugode

INTSORMIL Presentations

Malting is defined as the germination of grain in moist air under controlled conditions. Malting occurs in three stages: steeping (soaking), germination, and drying or kilning, then milling can take place. Malting changes the chemistry of the grain.

Virtues Of Sorghum: Utilization And Supply Chain Management, Lloyd W. Rooney

INTSORMIL Presentations

Discusses the consumer demands, value-added supply chain, strategy for value-added products, functionality of sorghums and millets, sorghum food use in Central America, plant breeding and improvement of grain quality, sorghum image, special sorghums as a particularly healthy food item, food utilization, improving sorghum quality, effect of molds, insects, and weathering on grain quality, and mycotoxins.

Sorghum The Crop Of Yesterday,Today And Tomorrow, S. Simunji

INTSORMIL Presentations

Explains that sorghum will be a crop that survives climate change. Discusses the opportunities and challenges for sorghum crop development in Zambia.

Mycotoxins In Grains – Causes, Prevention And Control, Hester F. Vismer

INTSORMIL Presentations

Discusses mycotoxins, their effect on grain, mitigation considerations, and resulting human toxicology.

Economic Analysis Of Small Scale Sorghum Processing In Dar Es Salaam, Tanzania, Jeremia Makindara, Joseph J. Mpagalile, Wenceslaus Ballegu

INTSORMIL Presentations

Due to small scale food processing initiatives, several entrepreneurs dealing in small scale sorghum processing have emerged in Tanzania and especially in urban centers such as Dar es Salaam. The recent initiative that has contributed to this is the SUA-INTSORMIL Project that started in 2005. However, despite such initiatives being received by many entrepreneurs, very few economic studies have been conducted to assess the benefits obtained by sorghum processing entrepreneurs and the challenges they face are not well explained. This study therefore assessed costs and benefits obtained by small scale sorghum processing entrepreneurs in Dar es Salaam and the challenges …

Sorghum Millet And Other Grains Crsp, Leader With Associates Cooperative Agreement No. Eep-A-00-06-00160: The New Program, John Yohe

INTSORMIL Presentations

INTSORMIL was created in 1979 by USAID and BIFAD as a long-term mechanism for agriculture development. It is meant to utilize capacity of U.S. land grant universities increase research capacity Increase food production. INTSORMIL was replaced in 2006 by the SMOG, Sorghum, Millet and Other Grains CRSP. The focus of these programs in Africa has been on sorghum, pearl millet, finger millet, tef, and fonio. The programs have facilitated investigation of soil and water (environmental considerations), integrated pest management, nutrition and health, broadening market access, mitigating post-harvest constraints, enhancing productivity and livelihood in marginal areas, increasing income, improving food quality, …

Effects Of Malting And Fermentation On The Composition And Functionality Of Sorghum Flours, Onesmo N.O. Mella

INTSORMIL Presentations

Includes information about the sorghum market in Tanzania, and provides an overview of the chemical components present in sorghum grain and their effects on the nutritional qualities of the grain with respect to human consumption. Explains that malting and fermentation improve the nutritional profile of sorghum grain, and describes the methods used to test this hypothesis.

Farmers' Markets In Kentucky: A Geospatial, Statistical, And Cultural Analysis, Elizabeth Ann Schmitz

Masters Theses & Specialist Projects

To assess what factors are driving the exponential growth of farmers’ markets in Kentucky, geospatial and statistical analysis of a database of 121 farmers’ markets was conducted. A statewide survey of market leaders and a case study of a single farmers’ market both identified reasons for growing support of farmers’ markets in Kentucky.

Market distribution, vendor levels, and gross sales were mapped against a backdrop of county urban classification, median household income, and education levels. Kruskal-Wallace analysis was used to identify if Kentucky’s rural, micropolitan, and metropolitan markets differ significantly in terms of their age, number of vendors, and market …

Developing Entrepreneurship, The Tanzania Experience: Sua-Intsormil Project, Joseph J. Mpagalile, Wenceslaus R. Ballegu

INTSORMIL Presentations

Project Title: Building a Sustainable Infrastructure for Product Development and Food Entrepreneur/Industry Technical Support: A Strategy to Promote Increased Use of Sorghum and Millet in East Africa.

Long Term Program Objectives: Development of successful entrepreneurial businesses that add-value to sorghum and millet such that:

~Farmers have an established outlet for cash sales of high-quality sorghum and millet

~Small businesses or cooperatives develop processing capabilities enabling the incorporation of sorghum and millet into a wide variety of food products

~Markets and market channels for sorghum and millet-based products develop.

Further develop research, extension and marketing expertise of National Agricultural Research Institutes …

Forage News [2010-12], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Register Now for Grazing Conference
• Forage Spokesman Contest and KFGC Award Nominations
• PFGC Celebrates 50th Anniversary
• Forage Variety Test Reports
• Feed Costs and Meat Production
• Corn Nitrogen Fertilizer Replacement Value of Alfalfa in Northern Illinois
• Comparison of Seeding Rates and Coating on Seedling Count, Root Length, Root Weight and Shoot Weight of Crimson Clover
• Effect of Macronutrient Deficiency on the Antioxidant Capacity of Lespedeza Cuneata (cv. Au Grazer) and Lotus Corniculatus (cv. Pardee)

Analysis Of The Response Of Medicago Truncatula Calcium Oxalate Mutants To Abiotic Stress, Wayra Gabriela Navia-Gine

Graduate Theses and Dissertations

Calcium oxalate crystals are found in most plant species. In Medicago truncatula wild-type A17, crystals accumulate in leaves along the secondary veins and the only role attributed to them so far is defense against chewing insects. Calcium oxalate deficient (cod) mutants were isolated in M. truncatula; the cod mutants include cod5, which completely lack crystals in the leaves and cod6 that accumulates fewer and smaller crystals compared to A17. We analyzed gene expression in the cod mutants and A17 using GeneChip® Medicago Genome Arrays and found important differences in transcriptome between the three genotypes. In particular, we found a gene …

An Nadph-Dependent Genetic Switch Regulates Plant Infection By The Rice Blast Fungus, Richard A. Wilson, Robert P. Gibson, Cristian Quispe, Jennifer A. Littlechild, Nicholas J. Talbot

Fungal Molecular Plant-Microbe Interactions

To cause rice blast disease, the fungus Magnaporthe oryzae breaches the tough outer cuticle of the rice leaf by using specialized infection structures called appressoria. These cells allow the fungus to invade the host plant and proliferate rapidly within leaf tissue. Here, we show that a unique NADPH-dependent genetic switch regulates plant infection in response to the changing nutritional and redox conditions encountered by the pathogen. The biosynthetic enzyme trehalose-6-phosphate synthase (Tps1) integrates control of glucose-6-phosphate metabolism and nitrogen source utilization by regulating the oxidative pentose phosphate pathway, the generation of NADPH, and the activity of nitrate reductase. We report …

Detection Of Soybean Seed Protein Qtls Using Selective Genotyping, Piyaporn Phansak

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

A quantitative trait locus (QTL) is a statically defined location of a gene governing that trait. QTL identification is the first step towards using marker-assisted selection (MAS) to introgress desirable QTL alleles into elite high-yield cultivars. Hundreds of high protein plant introductions (PIs) exist in the USDA germplasm collection and are a source of high protein alleles. Although 86 protein QTLs are currently listed in SoyBase, many are likely repeat discoveries of the same QTL(s), given the typical +/- 10 cM confidence intervals associated with QTL positions. Six germplasm accessions of maturity groups (MGs) II to IV that exhibited high …

The Impact Of Long-Term Tillage, Crop Rotation And N Application On Soil Carbon Sequestration, Agustin Martellotto

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Soil organic carbon (SOC) stock is controlled by many factors, but for given conditions it is the long term summation of the balance between inputs and outputs. Management practices will alter this balance by affecting the system’s productivity and the speed of residue and soil organic matter decomposition. Given that annual changes in SOC are generally small, compared with the large and variable SOC background, long-term experiments, and soil samples taken at the start of experiments (archived samples) are necessary to determine SOC trends over time. Changes in SOC were analyzed for two long-term experiments; one an irrigated site at …

Evaluation Of Novel Input Output Traits In Sorghum Through Biotechnology, Tejinder K. Mall

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Sorghum [Sorghum bicolor (L.) Moench] is the fifth most important cereal crop world-wide as well as an important source of feed, fiber and biofuel. It is a C4 plant and is well adapted to environments subject to high temperature and water limitation. Despite these agronomic qualities, it suffers from limitations of sensitivity to low temperature and the grain has drawbacks in relation to functionality and digestibility. The objectives of this study are: 1. To promote seed germination at low temperature and to enhance the seedling cold tolerance. 2. To enhance the grain digestibility and functionality. In an attempt to …

Interclonal Variation Of Primary And Secondary Chemistry In Western Quaking Aspen And Its Influence On Ungulate Selection, Damon A. Winter

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Quaking aspen (Populus tremuloides) clones within close proximity to one another can exhibit drastically different levels of browsing by ungulates. The objectives of this study were to (1) determine interclonal differences in plant chemistry between adjacent clones exhibiting different degrees of herbivory which may influence the browsing behavior and patterns of ungulates, and (2) determine if correlation exists in the levels of salicortin and tremulacin between current year's suckers and current year's growth on older trees. This second objective was meant to indicate a protocol for land managers for identifying clones meriting increased protection from herbivory after treatment …

Enhancing Out-Of-Season Production Of Tomatoes And Lettuce Using High Tunnels, Britney L. Hunter

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

The growing season for vegetable crops is limited by freezing temperatures in arid high elevation climates such as northern Utah. Logan, Utah (41.73 N, 111.83 W, 1382 m elevation) has a short, variable growing season with an average frost-free period of 135 days. Extending the growing season provides growers with an opportunity to extend revenue into a normally unproductive period and benefit from out-of-season price premiums. High tunnels have been used to effectively extend the growing season for numerous crops by providing cold temperature protection. However, limited high tunnel research has been performed in arid high elevation regions that experience …

An Investigation Of The Utilization Of Soil Water And Nitrogen Among Diverse Forage Plant Species And Mixtures, Sallee Reynolds

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Species diversity achieved by adding novel functional groups (warm-season grasses and non-leguminous forbs) to pasture land, along with traditional grasses and legumes, could aid in the capture of nutrients and water in pasture systems by offering complementary rooting architecture to aid in water and nitrogen uptake and decrease nitrogen leaching. Because these species may differ from commonly used grasses and legumes in their seasonal pattern of productivity, they could also extend or enhance growing-season productivity. The goal of this project is to better understand the role of plant diversity in 1) nitrogen use and 2) distribution of rooting dynamics and …

Utah Fertilizer Guide, D. W. James, K. F. Topper

All Current Publications

The Utah Fertilizer Guide is designed to provide practical answers to routine questions related to soil fertility management. The guide emphasizes laboratory analysis of soil and plant samples as the keystone to optimum fertilizer rates for maximum economic plant yield and quality. The focus of the guide is on soil fertility problems peculiar to the semi-arid and arid soils of Utah.

Water And Fertilizer Influence On Sorghum Grain Quality For Traditional Beer (Dolo) Production In Burkina Faso, S. Palé, S. J.B. Taonda, B. Bougouma, Stephen C. Mason

INTSORMIL Scientific Publications

In the Central Plateau of Burkina Faso, grain sorghum [Sorghum bicolor (L.) Moench] is the major cereal crop used to produce the traditional beer called dolo. Grain sorghum grain samples collected in 2004 and 2005 from experiments combining five water management techniques and four fertilizer treatments in a randomized complete block design with a split plot arrangement of treatments were analyzed for the physicochemical properties of raw grain, and quality of malted grain. Water management techniques were allocated to main plots and fertilizer treatments to subplots. The objective was to determine the best combination of water management technique and …

Intsormil, Mamourou Diourté, Elvis A. Heinrichs

INTSORMIL Scientific Publications

INTSORMIL est géré par l’Université de Nebraska-Lincoln qui joue le rôle de chef de file d’un accord de coopération liant l’USAID à des associés pour cinq ans.

La vision globale d’INTSORMIL consiste à améliorer la sécurité alimentaire, accroître les revenus agricoles et améliorer l’activité économique dans les pays à grande production des sorgho/mil en Afrique et en Amérique centrale (carte ci-contre).

Nebline, November/December 2010

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Garbology 4-H School Enrichment

Farm Views

Horticulture

Food & Fitness

Home & Family Living

Environmental Focus

Urban Agriculture

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

Forage News [2010-11], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Dr. Norman Taylor 1926-2010
• Registration Now Open for Grazing Conference
• Forage Spokesman Contest and KFGC Award Nominations - Deadline Dec. 3
• Effects of Ergot-Endophyte-Infected Fescue Seed on Physiological Parameters in Mature Female Meat Goats
• Chaparral® Herbicide Application for Suppression of Seedhead Emergence in Tall Fescue Pastures and Possible Alleviation of Fescue Toxicosis
• Science Shows Beef Production is Earth Friendly
• Use of Novel Endophyte Fescue for Cows
• Evaluation of Annual Ryegrass (Lolium Multiflorum) in Two Fall Grazing Systems on Forage Quality and Stock Calf Performance in Northern Minnesota
• Using Mature Hay for Bedding: Potential for Tall Fescue Toxicity

Identification Of Sources Of Rhizoctonia Root Rot Resistance In Common Bean And Mapping A New Source Of Bean Rust Resistance From The Tertiary Gene Pool Of Common Bean, Pamela A. Peña-Perdomo

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

An efficient screening method was developed and used to identify bean lines resistant to Rhizoctonia Root Rot caused by Rhizoctonia solani Kuhn. Two sets of 163 and 111 lines previously evaluated for drought tolerance at Mitchell, NE and Isabela, PR were evaluated for Rhizoctonia Root Rot resistance under greenhouse conditions. This root rot data was also correlated with yield under drought stress and non stress conditions. In the first set of lines the rhizoctonia mean score ranged from 1.7 to 3.9; and in the second set the rhizoctonia mean score was between 2.6 and 5.7. There was no significant correlation …

Plant Phenolics: Extraction, Analysis And Their Antioxidant And Anticancer Properties, Jin Dai, Russell J. Mumper

Pharmaceutical Sciences Faculty Publications

Phenolics are broadly distributed in the plant kingdom and are the most abundant secondary metabolites of plants. Plant polyphenols have drawn increasing attention due to their potent antioxidant properties and their marked effects in the prevention of various oxidative stress associated diseases such as cancer. In the last few years, the identification and development of phenolic compounds or extracts from different plants has become a major area of health- and medical-related research. This review provides an updated and comprehensive overview on phenolic extraction, purification, analysis and quantification as well as their antioxidant properties. Furthermore, the anticancer effects of phenolics in-vitro …

Nebline, October 2010

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: 4-H Can Help Youth Choose a Career Path

Farm Views

Horticulture

Food & Fitness

Home & Family Living

Environmental Focus

Urban Agriculture

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

Effects Of Experimental Nitrogen Additions On Plant Diversity In An Old-Growth Tropical Forest, Xiankai Lu, Jiangming Mo, Frank S. Gilliam, Guoyi Zhou, Yunting Fang

Biological Sciences Faculty Research

Response of plant biodiversity to increased availability of nitrogen (N) has been investigated in temperate and boreal forests, which are typically N-limited, but little is known in tropical forests. We examined the effects of artificial N additions on plant diversity (species richness, density and cover) of the understory layer in an N saturated old-growth tropical forest in southern China to test the following hypothesis: N additions decrease plant diversity in N saturated tropical forests primarily from N-mediated changes in soil properties. Experimental additions of N were administered at the following levels from July 2003 to July 2008: no addition (Control); …