Digital Commons Network^™

Sexual And Asexual Reproductive Characteristics Of The North American Pawpaw [Asimina Triloba (L.) Dunal], Sheri Beth Crabtree

University of Kentucky Master's Theses

The North American Pawpaw [Asimina triloba (L.) Dunal] shows great potential as a new fruit crop. Kentucky State University in Frankfort, Ky. is the site for the USDA National Clonal Germplasm Repository (NCGR) for Asimina species. Both the fruit and the trees themselves are of high value to growers and nursery producers. Pawpaw cultivars are currently propagated by grafting or budding onto seedling rootstock; no method currently exists to clonally propagate pawpaw on its own roots. Three methods of layering were attempted in this study to clonally propagate pawpaw: trench layering, pot layering, and mound layering. Both trench layering …

Soil Organic Carbon Content And Composition Of 130-Year Crop, Pasture And Forest Land-Use Managements, Dean A. Martens, Thomas E. Reedy, David T. Lewis (Retired)

Department of Agronomy and Horticulture: Faculty Publications

Conversion of former agricultural land to grassland and forest ecosystems is a suggested option for mitigation of increased atmospheric CO₂. A Sharpsburg prairie loess soil (fine, smectitic, mesic Typic Argiudoll) provided treatments to study the impact of long-term land use on soil organic carbon (SOC) content and composition for a 130-year-old cropped, pasture and forest comparison. The forest and pasture land use significantly retained more SOC, 46% and 25%, respectively, compared with cropped land use, and forest land use increased soil C content by 29% compared with the pasture. Organic C retained in the soils was a function …

Central Crops And Soils Research Station Highmore, South Dakota: Annual Progress Report, 2003, Agricultural

Agricultural Experiment Station and Research Farm Annual Reports

This report of the Central Crops and Soils Research Station at Highmore, South Dakota reflects the 2003 growing season. This document includes data on: temperatures and precipitation, field evaluation of woody plant materials, alfalfa production, winter wheat, oat research, spring wheat breeding, resistance of sunflower germplasm to the red sunflower seed weevil, flax variety test, weed control, fertilizer and soil test on soybeans, aphid infestations, small grain variety test, and corn breeding.

Center For Grassland Studies Newsletter, Winter 2003, Volume 9, No. 1

Center for Grassland Studies: Newsletters

Planning for Bison Grazing on Native Rangeland by Kristin Miller, USDA Natural Resources Conservation Service

Pooled Sales Add Value to Cull Cows by Rebekka Martin and Jana Beckman

The Grass Dance

UNL Offers Online Course in Turf Diseases

Second National Conference on Grazing Lands

Seed Dormancy – the Uncertainty in Native Grass Seeding

Prairie Pines to Benefit UNL Programs by Steven Ress, Water Center, UNL

Platte River Trust Begins Study of Birds Breeding in Grasslands by Felipe Chavez-Ramirez, Platte River Whooping Crane Maintenance Trust

A Floristic Survey Of The Oil Camp Creek Cataract Fen Complex, Caesars Head State Park, South Carolina, David Nestor

All Theses

No abstract provided.

Efficient Grazing Systems: Putting Pieces Together, Charles T. Dougherty

Kentucky Grazing Conference

Pros and cons of grazing systems are well-known to this audience. Efficient grazing systems, however, are a different story. What is an efficient grazing system? I think we could argue that topic until the cows come home and I do not believe we could come to any agreement. I am going to approach the subject of efficiency from several angles but you will probably see them differently. Economic efficiencies will not be covered.

Kentucky Goat Friendly Pasture Concepts, Terry Hutchens

Kentucky Grazing Conference

Goats are accomplished grazers of grass and browse plants. In addition, they can be managed within a grazing system both intensively or extensively as long as quality forage is made available. Goats are facultative browsers, they prefer to feed at eye level and upward and then feed on forage from the top of the plant down. Goats prefer to move freely from plant to plant-removing foliage from select portions of plants. Foliage meals are dictated by quality factors that insure adequate protein and energy levels. Each stem or leaf is clipped with precision leaving the forage residue standing equal in …

Effective Use Of Pastures For Horses, Robert Coleman

Kentucky Grazing Conference

Pastures can serve two very necessary functions for the care and maintenance of horses. Not only do these areas of grasses and legumes provide a place for the horse to exercise, they can provide a significant portion of the horse’s nutrient requirement. Horses evolved as a grazing animal, so it is reasonable that many classes of horse can be adequately maintained on well-managed pastures.

The Economics Of Integrating Crop Land To Mig Grazing, Edward N. Ballard

Kentucky Grazing Conference

Illinois soils vary in their properties and producing capacities. Large areas of the state have soils that are among the most productive in the world. Other areas have soils that, because they are too steep or droughty or have some other undesirable features, are not the most productive for corn and soybeans.

However, over the past 30 years there has been a trend to place more acres in Illinois in corn and soybeans and less acres in small grains, legumes and pasture crops. Government incentive programs have encouraged more acres to be place into corn and soybean production.

Environmental Benefits With Improved Grazing, David Stipes

Kentucky Grazing Conference

The public is becoming better educated about the environment and will continually question activities that are perceived as being harmful to soil, water, air, plants, people, animals and other concerns. Livestock producers who implement well-planned grazing management systems have an excellent opportunity to compliment both production and natural resource conservation considerations. All segments of the population involved in production agriculture will be held accountable for environmental impacts that result from their operation. A proactive approach is needed by livestock and other agricultural producers to sustain the protection of the environment that is in harmony with a healthy ecosystem. All those …

Grazing Systems For Beef Cattle, John Johns

Kentucky Grazing Conference

Beef cattle represent the most important grazing livestock enterprise to Kentucky producers. As of January 1, 2003 there were 1,120,000 producing beef brood cows on 39,000 farms in the state. In addition, more than 600,000 yearling cattle are also produced. The number of total beef animals is increasing as producers put more economic reliance on beef and forage programs. In many cases, beef cattle represent the only practical method of converting high quality forage to income for producers.

Grazing Systems For Dairy, Donna M. Amaral-Phillips

Kentucky Grazing Conference

Forages which are grazed can provide anywhere from 25 to 100% of the forage consumed by growing dairy heifers, dry cows or the milking herd. In this paper, I would like to specifically deal with devising a grazing program for a dairy lactating or milking herd. Lactating dairy cows are a “high performance animal” and, as such, any decreases in the availability or quality of forage can quickly decrease milk production. Thus, the goal when designing a grazing system is to provide adequate quantities of high-quality, vegetative forage to prevent decreases in performance. These decreases in performance occur in all …

Optimize Grazing--Minimize Stored Feed, Garry D. Lacefield

Kentucky Grazing Conference

The title “Optimize Grazing – Minimize Stored Feed” appears to be a bit redundant at first glance. Indeed if we optimize grazing, we will certainly minimize the amount of stored feed required to winter our animals. Putting both concepts together can serve as a reminder of the tremendous benefit of both.

Grazing represents the cheapest source of nutrients for our beef industry. Several studies have shown that the best predictor of profitability in the beef industry is cost of stored feed. In Kentucky, specifically, that means cost/amount of hay required to winter on beef animals.

Fisheries Research Contract Report No. 6 - Assessment Of The Nutritional Variability Of Lupins As An Aquaculture Feed Ingredient, Brett Glencross, John Curnow, Wayne Hawkins

Fisheries Research Reports

The nutritional value of the kernel meals of three species of lupin (Lupinus albus, L. angustifolius and L. luteus) was compared against each other and a reference ingredient of solvent extracted soybean meal, when fed to rainbow trout (Oncorhynchus mykiss). Each lupin kernel meal was included in test diets at 300 g/kg and also at a greater level, representing 50% of the total protein content in the diet. The digestibility of protein of all lupin kernel meals was better than for the soybean meal. The highest protein digestibility was that from L. luteus kernel meal at 30% inclusion (100%), which …

Forage News [2003-11], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• 4^TH Kentucky Grazing Conference in Lexington
• Buttercup Control in Cool-Season Grass Pastures
• Does “Endophyte” in Stockpiled Tall Fescue Impact Animal Performance?
• Upcoming Events

Nebline, November/December 2003

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

ABC’s for Good Health because Every Woman Matters!
Stretch Your Food Dollar - Create-A-Casserole Chart
Preparing and Using Pine Cones For Decoration
Forcing Spring-Flowering Bulbs
Garden Guide
Choosing and Caring for Indoor Trees
Understanding Nebraska’s Open Burning Law
“Megaforces of Agriculture” Seminar
Storage Methods to Reduce Hay Losses
Fall is a Great Time to Control Winter Annual Weeds
Consider Stand Density, Weeds When Rotating Alfalfa
Thoroughly Modern Thanksgiving: Turkey Cooking Tips
Healthy Eating: Enjoy Nebraska Foods
Making Changes in Eating Behavior
Web Resources of the Month
Lines from Lynn
Household Hints: Holiday Stain Removal for Washable Fabrics
FCE Achievement Night …

Comparative Pathogenicity Of Escherichia Coli O157 And Intimin-Negative Non-O157 Shiga Toxin-Producing E. Coli Strains In Neonatal Pigs, Evelyn A. Dean-Nystrom, Angela R. Melton-Celsa, Joachim F. L. Pohlenz, Harley W. Moon, Alison D. O’Brien

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

We compared the pathogenicity of intimin-negative non-O157:H7 Shiga toxin (Stx)-producing Escherichia coli (STEC) O91:H21 and O104:H21 strains with the pathogenicity of intimin-positive O157:H7 and O157:H^- strains in neonatal pigs. We also examined the role of Stx2d-activatable genes and the large hemolysinencoding plasmid of O91:H21 strain B2F1 in the pathogenesis of STEC disease in pigs. We found that all E. coli strains that made wild-type levels of Stx caused systemic illness and histological lesions in the brain and intestinal crypts, whereas none of the control Stx-negative E. coli strains evoked comparable central nervous system signs or intestinal lesions. By contrast, …

The Autumnal Feast Of The Mad River People, James P. Smith Jr

Botanical Studies

No abstract provided.

Bulletin No. 38: The Hidden World Of Plants: A Scanning Electron Microscope Survey Of The Native Plant Collection, Connecticut College Arboretum, Danica C. Kubick, T. Page Owen Jr.

Bulletins

No abstract provided.

Center For Grassland Studies Newsletter, Fall 2003, Volume 9, No. 4

Center for Grassland Studies: Newsletters

Students: Study Sustainable Animal Systems in Norway! by Charles Francis, Department of Agronomy and Horticulture, UNL

High Plains Partnership: Conserving High-priority Species in Cooperation with Private Landowners

Private Individuals Can Now Provide and Receive Conservation Technical Assistance with TechReg

Legumes Boost Quality in Bromegrass Pastures

Nebraska Agriculture Industry Partnership Formed

UNL Scientists Earn $1.8 million NSF Grant to Study Sandhills Ecosystem

Online Forage and Grazinglands Journal Part of Plant Management Network

Ua66/5 Newsletter, Wku Agriculture

WKU Administration Documents

Newsletter created by WKU Agriculture Department re: faculty/staff, students/alumni, student organizations and clubs and donors.

Forage News [2003-10], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Illinois Animal Scientist to Speak at Kentucky Grazing Conference
• KFGC Awards: Deadline October 15
• Fighting Tall Fescue Toxicity: Is There a Silver Bullet?
• Forage Extension Position
• Performance of Grazing-Tolerant Alfalfa Varieties Rotationally Grazed by Dairy Cattle
• The Most Important Invention in 2000 Years?
• Last Call for October Grazing School
• A Long, Rich History
• Evaluating Hay Quality
• Upcoming Events

Nebline, October 2003

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Check Your Home for Biological Pollutants
Growing Hardy Bulbs
Garden Guide
Time for Garden Cleanup
Storing Vegetables
Horticulture Information Center
Hints for Fruit Storage
Get Started on Your Winter Bird Feeding Program
Hedge Apples: Not a Good Insect Repellent
What are Zoonoses?
Last Household Hazardous Waste Collection!
Don’t Become a Farm Accident Statistic
Add Lime Now for Next Spring’s Alfalfa
Fatality Rate Higher for Senior Farmers
Protect Hearing on the Farm
Preparing an Emergency Water Supply
Site Evaluation
Maintaining Rubber Tires on Farm Equipment
ATVenture Workshop at Halsey 4-H Camp
Ak-Sar-Ben Youth Expo Winners
Charter Club Applications Due Oct. 31 …

On-Station Production Of Native Speargrass Hay In Western Australia, G L. Krebs, Robert R. Rouda, S P. Van Wyngaarden

Bulletins 4000 -

This report documents the practical and economic feasibility of on-station harvesting and production of speargrass hay and haylage and its subsequent feeding to cattle and sheep in the extensive regions of south-eastern Western Australia. Four hundred and ten bales weighing an average 275 kg were produced from a total harvested area of 40.6 ha in the vicinity of Duck Dam on Kanandah Station. In the lead up to harvesting, seasonal conditions were among the best on record. Half of the bales produced were further processed into haylage. Two feeding trials, involving wethers at Arubiddy and steers at Kanandah, were undertaken …

The Complete Genome Sequence Of The Arabidopsis And Tomato Pathogen Pseudomonas Syringae Pv. Tomato Dc3000, C. Robin Buell, Vinita Joardar, Magdalen Lindeberg, Jeremy Selengut, Ian T. Paulsen, Michelle L. Gwinn, Robert J. Dodson, Robert T. Deboy, A. Scott Durkin, James F. Kolonay, Ramana Radupu, Sean Daugherty, Lauren Brinkac, Maureen J. Beanan, Daniel H. Haft, William C. Nelson, Tanja Davidsen, Nikhat Zafar, Liwei Zhou, Jia Liu, Qiaoping Yuan, Hoda Khouri, Nadia Fedorova, Bao Tran, Daniel Russell, Kristi Berry, Teresa Utterback, Susan E. Van Aken, Tamara V. Feldblyum, Mark D'Ascenzo, Wen-Ling Deng, Adela R. Ramos, James R. Alfano, Samuel Cartinhour, Arn K. Chatterjee, Terrence P. Delaney, Sondra G. Lazarowitz, Gregory B. Martin, David J. Schneider, Xiaoyan Tang, Carol L. Bender, Owen White, Claire M. Fraser, Alan Collmer

Department of Plant Pathology: Faculty Publications

We report the complete genome sequence of the model bacterial pathogen Pseudomonas syringae pathovar tomato DC3000 (DC3000), which is pathogenic on tomato and Arabidopsis thaliana. The DC3000 genome (6.5 megabases) contains a circular chromosome and two plasmids, which collectively encode 5,763 ORFs. We identified 298 established and putative virulence genes, including several clusters of genes encoding 31 confirmed and 19 predicted type III secretion system effector proteins. Many of the virulence genes were members of paralogous families and also were proximal to mobile elements, which collectively comprise7%of the DC3000 genome. The bacterium possesses a large repertoire of transporters for …

Direct Marketing Of Agroforestry Products, Stefanie Aschmann

Agroforestry Notes (USDA-NAC)

Agroforestry can enhance cash flow on many farms through the production of high-value forest products. The greatest challenge, however, is often marketing rather than production. Unlike commodity crops that have a readily available, but relatively uncompromising, market; the market for some agroforestry products is not always apparent. Landowners may need to take an active role in marketing to reap the benefits of their production. Producer goals, resources, and products, as well as local customer needs and habits usually dictate marketing strategies. This Note describes several different direct marketing strategies that might be used to market agroforestry products. Many variations on …

Converting A Pasture To A Silvopasture In The Pacific Northwest, Steven H. Sharrow, Rick Fletcher

Agroforestry Notes (USDA-NAC)

Forestry and livestock production are mainstays of the natural resource-based economies of many rural communities in the western United States and Canada. Regenerating mixed conifer forests may produce considerable amounts of ground vegetation that is suitable as livestock feed, while open-canopied pine forests in more arid conditions produce forage throughout their lives. Not surprisingly, there is a strong tradition of livestock grazing within western forests. Silvopasture, the combination of forest management and improved forage species, is a more intensive, controlled application of this traditional use. It is most often implemented to increase profitability, reduce risk, and augment environmental benefits from …

Effects Of Management Practices On Grassland Birds: Greater Prairie-Chicken, W. D. Svedarsky, J. E. Toepfer, R. L. Westemeier, R. J. Robel

United States Geological Survey: Effects of Management Practices on Grassland Birds

Information on the habitat requirements and effects of habitat management on grassland birds were summarized from information in more than 5,500 published and unpublished papers. A range map is provided to indicate the breeding distribution of Greater Prairie-Chicken in the United States and southern Canada. Although birds frequently are observed outside the breeding range indicated, the maps are intended to show areas where managers might concentrate their attention. It may be ineffectual to manage habitat at a site for a species that rarely occurs in an area. The species account begins with a brief capsule statement, which provides the fundamental …

Effects Of Modification Of The Transcription Initiation Site Context On Citrus Tristeza Virus Subgenomic Rna Synthesis, Maria A. Ayllon, Siddarame Gowda, Satyanarayana Tatineni, Alexander V. Karasev, Scott Adkins, Munir Mawassi, Jose Guerri, Pedro Moreno, William O. Dawson

Department of Plant Pathology: Faculty Publications

Citrus tristeza virus (CTV), a member of the Closteroviridae, has a positive-sense RNA genome of about 20 kb organized into 12 open reading frames (ORFs). The last 10 ORFs are expressed through 3'-coterminal subgenomic RNAs (sgRNAs) regulated in both amounts and timing. Additionally, relatively large amounts of complementary sgRNAs are produced. We have been unable to determine whether these sgRNAs are produced by internal promotion from the full-length template minus strand or by transcription from the minus-stranded sgRNAs. Understanding the regulation of 10 sgRNAs is a conceptual challenge. In analyzing commonalities of a replicase complex in producing so many …

Grazing Management: Summer Grazing Strategies Following Early-Season Grazing Of Big Bluestem, Eric M. Mousel, Walter H. Schacht, Lowell E. Moser

Department of Agronomy and Horticulture: Faculty Publications

Big bluestem (Andropogon gerardii Vitman) has a rapid growth phase that begins in early to mid-June in eastern Nebraska. During this rapid growth phase, rate of biomass accumulation exceeds intake rate of grazing livestock, resulting in low levels of harvest efficiency. To delay the rapid growth phase, big bluestem pasture can be grazed in mid- to late May without affecting herbage yields for the remainder of the growing season. A pasture experiment was conducted in 1999, 2000, and 2001 near Mead, NE. The objective was to determine the effect of timing and frequency of grazing big bluestem pasture, …