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The Effect Of Prescribed Burns On Cation Exchange Capacity In An Oak Savanna, Christopher Michael Gentry

All-Inclusive List of Electronic Theses and Dissertations

The Indiana Department of Natural Resources estimates that fire-maintained, tallgrass savannas once covered approximately 15% oflndiana. During the 1800's, settlers cleared savannas for their rich soils, which are well suited for agricultural use, and fire was suppressed from the remaining savannas because of the threat to farmland. Today, prescribed bums are being used in savannas as a management tool to reduce competition from non-native species, encourage community density, and promote patch dynamics. This research examines how fire affects Cation Exchange Capacity (CEC) in post fire soil samples. CEC is an important soil characteristic that helps to describe soil fertility. With …

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

All Theses

No abstract provided.

The Prairie Naturalist Volume 35, No.4 December 2003

The Prairie Naturalist

HOME RANGE AND MOVEMENTS OF EASTERN AND RIO GRANDE WILD TURKEY FEMALES IN NORTHEASTERN

SOUTH DAKOTA ▪ C. P. Lehman, L. D. Flake, and A. P. Leif

THE BAT FAUNA OF SOUTHEASTERN SOUTH DAKOTA . J. E. Lane, C. L. Buck, and R. M. Brigham

FIRST REPORT OF THE NORTH DAKOTA RARE BIRD COMMITTEE ▪ D. Svingen and R. E. Martin

BREEDING CHRONOLOGY OF DABBLING DUCKS IN MINNEDOSA, MANITOBA ▪ A. M. Wells and H. H. Prince

A LIVE COLLECTION OF A PISTOLGRIP FROM NEBRASKA ▪ S. C. Schainost

NEW NESTING DATES FOR SOME BREEDING BIRDS IN NORTH DAKOTA ▪ …

News From Cart, Donald Padgett

Bridgewater Review

No abstract provided.

A Comparison Of Clearcut And Shelterwood Harvesting Effects On Understory Vegetation In Central Virginia Piedmont Forests, Lorelei J. Hartman

Theses & Honors Papers

I compared clearcutting and shelterwood harvesting effects on all understory vegetation (woody and nonwoody) in Piedmont hardwood forests. Clearcutting and shelterwood harvesting are both even.-aged management practices, put in contrast to clearcutting, the shelterwood method retains selected trees as partial canopy. The retained canopy is reported to be beneficial to desired tree species and restrict competition of undesired tree species, grasses and shrubs.·Research comparing the shelterwood method to clearcutting has been limited , particularly in hardwood forests. We collected data on understory plant communities in clearcut, low-leave shelterwood, and mature forest sites (not harvested in

at least 100 years). Percent …

Gaca, The Response Regulator Of A Two-Component System, Acts As A Master Regulator In Pseudomonas Syringae Pv. Tomato Dc3000 By Controlling Regulatory Rna, Transcriptional Activators, And Alternate Sigma Factors, Asita Chatterjee, Yaya Cui, Hailian Yang, Alan Collmer, James R. Alfano, Arun K. Chatterjee

Department of Plant Pathology: Faculty Publications

Concerted investigations of factors affecting host-pathogen interactions are now possible with the model plant Arabidopsis thaliana and its model pathogen Pseudomonas syringae pv. tomato DC3000, as their whole genome sequences have become available. As a prelude to analysis of the regulatory genes and their targets, we have focused on GacA, the response regulator of a two-component system. The DC3000 gene was cloned by testing for the reversal of phenotypes of an Erwinia GacA– mutant. A GacA– mutant of DC3000 constructed by marker exchange produces much-reduced levels of transcripts of three alternate sigma factors: HrpL, required for the production of effector …

Activation Of A Coi1-Dependent Pathway In Arabidopsis By Pseudomonas Syringae Type Iii Effectors And Coronatine, Ping He, Satya Chintamanani, Zhongying Chen, Lihuang Zhu, Barbara N. Kunkel, James R. Alfano, Xiaoyan Tang, Jian-Min Zhou

Center for Plant Science Innovation: Faculty Publications

Gram-negative bacteria use a variety of virulence factors including phytotoxins, exopolysaccharides, effectors secreted by the type III secretion system, and cell-wall-degrading enzymes to promote parasitism in plants. However, little is known about how these virulence factors alter plant celluar responses to promote disease. In this study, we show that virulent Pseudomonas syringae strains activate the transcription of an Arabidopsis ethylene response factor (ERF) gene, RAP2.6, in a coronatine insensitive 1 (COI1)-dependent manner. A highly sensitive RAP2.6 promoter-firely luciferase (RAP2.6-LUC) reporter line was developed to monitor activities of various bacterial virulence genes. Analyses of P. syringae pv. tomato DC3000 mutants indicated …

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 …

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

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 …

Pineywoods Native Plant Center, Fall 2003, Sfa Gardens, Stephen F. Austin State University

SFA Gardens Newsletters

No abstract provided.

Summaries Of Arkansas Cotton Research 2002, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

The average yield in Arkansas in 2002 was 871 lb lint/acre from 920,000 harvested acres (960,000 planted) for a total of 1.67 million bales at a value of$336.5 million. This yield was second only to the record 877 lb lint/acre achieved in 1994. Last year's crop yield, and the five-year average, on a per acre basis are exceeded in the U.S. Cotton Belt only by California and Arizona. Cotton yields in Arkansas increased steadily during the eighties, but in the last decade yields have leveled off. Furthermore, the last five years have had extreme year-to-year variability in yields, which is …

Integrated Weed Management Plan For The Lower Las Vegas Wash, Elizabeth Bickmore

Publications (WR)

The Las Vegas Wash (Wash) is the primary drainage for the metropolitan Las Vegas Valley, eventually finding its way into the Colorado River watershed system. Pursuant to the recommendations of the Water Quality Citizens Advisory Committee, the Las Vegas Wash Coordination Committee (LVWCC) was formed in 1998 to develop a comprehensive plan for the long-term stabilization and management of the Wash. Consisting of representatives from 28 government agencies, businesses, environmental groups and citizens, the LVWCC formulated the Las Vegas Wash Comprehensive Adaptive Management Plan (CAMP) and designated the Southern Nevada Water Authority (SNWA) as the lead agency for the implementation …

Tnt Biotransformation And Detoxification By A Pseudomonas Aeruginosa Strain, Byung-Taek Oh, Patrick J. Shea, Rhae A. Drijber, Galina K. Vasilyeva, Gautam Sarath

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

Successful microbial-mediated remediation requires transformation pathways that maximize metabolism and minimize the accumulation of toxic products. Pseudomonas aeruginosa strain MX, isolated from munitionscontaminated soil, degraded 100 mg TNT L^-1 in culture medium within 10 h under aerobic conditions. The major TNT products were 2-amino-4,6-dinitrotoluene (2ADNT, primarily in the supernatant) and 2,2′- azoxytoluene (2,2′AZT, primarily in the cell fraction), which accumulated as major products via the intermediate 2-hydroxylamino-4,6-dinitrotoluene(2HADNT). The 2HADNT and 2,2′AZT were relatively less toxic to the strain than TNT and 2ADNT. Aminodinitrotoluene (ADNT) production increased when yeast extract was added to the medium. While TNT transformation rate was …

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 …

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 …

Nebline, September 2003

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Food Safety Q & A Is This Food Still Safe to Eat?
Garden Guide
Planting Under Established Trees
Seasonal Needle Drop on Evergreens
Drying Gourds
Horticulture Information Center
Is it Really a “Sweat Bee”?
Odd Insects Found in Late Summer
West Nile Virus Alert!
West Nile Virus Q &A
Fall Livestock and Grain Price Outlook Meeting Scheduled
Time to Control Problem Weeds
Preparing Bins to Maintain Grain Quality, Value
Biosolids Increase Yields While Reducing Fertilizer Costs
Burning Wood Safely in a Stove or Fireplace
Water Quality Standards Apply To Public, Not Private Drinking Water
Lagoon Design and Construction
Store It, …

Diseases Of Waxflower And Their Control, Aileen Reid

Bulletins 4000 -

Waxflower is susceptible to a range of diseases. This outlines the main problems which occur in commercial plantations and presents measures to control them. Since chemicals for control of plant diseases are constantly changing, growers are advised to seek the latest available information.

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 …

The Prairie Naturalist Volume 35, No.3 September 2003

The Prairie Naturalist

BROWN-HEADED COWBIRDS IN GRASSLANDS: THEIR HABITATS, HOSTS, AND RESPONSE TO MANAGEMENT ▪ J. A. Shaffer, C. M. Goldade, M. F. Dinkins, D. H. Johnson, L. D. Igl, and B. R. Euliss

LlGUMIA SUBROSTRATA (BIVALVIA: UNIONIDAE) IN MINNESOTA AND ITS STATUS IN THE UPPER MIDWEST ▪ B. E. Sietman, D. E. Kelner, R. A. Hart, and M. Davis

GUIDELINES FOR FINDING NESTS OF PASSERINE BIRDS IN TALLGRASS PRAIRIE ▪ M. Winter, S. E. Hawks, J. A. Shaffer, and D. H. Johnson

RESPONSE OF THE LEAST SHREW TO PREY OLFACTORY CUES ▪ F. Punzo and C. Gonzalez

Book Reviews

North Dakota's Butterflies …

Phenology Of Acacia Berlandieri, A. Minuata, A. Rigidula, A. Schaffneri, And Chloroleuconebano In The Lower Rio Grande Valley Of Texas During A Drought, Melissa R. Eddy, Frank W. Judd

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

Flowering and fruiting phenology of Acacia berlandieri, A. minuata, A. rigidula, A. schaffneri, and Chloroleucon ebano were studied at 3 sites in the Lower Rio Grande Valley of Texas from July 1998 through August 1999. Severe drought conditions prevailed for the 6 months preceding this study, and rainfall was 20% lower during the study than the long-term mean. Acacia berlandieri had the longest flowering period (5 months); each of the other 3 Acacia species flowered for 3 months. All of the Acacia species flowered in winter or spring (at relatively low temperatures and increasing photoperiod). Peak flowering occurred in February …

Sheep Updates 2003 - Posters, Maxine Brown, Gaye Krebs, Diana Fredorenko, Kathryn Edgerton-Warburton, Evan Burt, Nazrul Islam, Roy Butler, L. G. Butler, S. R. Brown, M. F. D'Antuono, J. C. Greeff, Ken Hart, Tanya Kilminster, Rachel Kirby, M. E. Ladyman, A. C. Schlink, I. H. Williams, P. E. Vercoe, Anyou Lui, Karen Smith, Martin Bent, Matthew Young

Sheep Updates

This session covers eleven papers from different authors:1 Sheep production on annual stubbles/pastures vs lucerne Maxine Brown Gaye Krebs Muresk Institute, Curtin University Diana Fedorenko Kathryn Egerton-Warburton Centre for Cropping Systems, Department of Agriculture Western Australia 2. The value chain of the Lake Grace livestock industry Evan Burt Nazrul Islam Department of Agriculture Western Australia 3. Native pastures, Dorper sheep and the 2002 drought Roy Butler Department of Agriculture Western Australia 4. Commercial sheep breeders can improve their sheep breeding program using wether trials L.G. Butler, S.R. Brown, M.F. D’Antuono, J.C. Greeff Department of Agriculture 5. Western Australia Linked ewe …

Sheep Updates 2003 - Pastures, Ed Barrett-Lennard, Hayley Norman, Robyn Dynes, David Masters, David Henry, Stephen Gherardi, Graham Donald, Asoka Edirisinghe, Chris Oldham, Richard Smith, Joanne Sneddon, Mike Hyder, Andrew Thompson, Kazue Tanaka, Roy Latta, Chris Matthews, Brad Nutt, Angela Loi, Tim Wiley

Sheep Updates

This session covers seven papers from different authors: 1. Pastures for saline land, Ed Barrett-Lennard 1Department of Agriculture, Western Australia, Hayley Norman, Robyn Dynes and David Masters CSIRO Livestock Industries, Centre for Mediterranean Agricultural Research, Floreat Park, 2. Feeding value - the essential link between pastures and animals CSIRO Livestock Industries, Centre for Environmental and Life Sciences 3. ‘Pastures from space’ - how do we do it, how well do we do it and what do producers think about it? Stephen Gherardi Department of Agriculture Western Australia Graham Donald Asoka Edirisinghe Dave Henry CSIRO Livestock Industries Chris Oldham Department of …

B.R. Wells Rice Research Studies 2002, R. J. Norman, J.-F. Meullenet

Arkansas Agricultural Experiment Station Research Series

Arkansas is the leading rice producing state in the U .S .. representing almost 46% of the total U .S. production and almost 47% of the total acres planted to rice . Rice cultural practices vary across the state and across the U.S. However, due to changing political, environmental, and economic times, the practices arc dynamic. This survey was initiated in 2002 to monitor how the changing times reflect the changes in the way Arkansas rice producers approach their livelihood. The survey was conducted by polling county Extension agents in each of the counties in Arkansas that produce rice. Questions …

Information On Pastoral Businesses In The Rangelands Of Western Australia, Department Of Agriculture, Western Australia

Farm Systems and Economics published reports

Edited by William Dalton and Francis Bright

The rangelands make up 87 per cent of Western Australia's landmass and include all but the south-west of the State. Livestock grazing on pastoral leasehold is the dominant commercial land use across 42 per cent (910,000 km*) of the WA rangelands and unallocated Crown lands comprise another 37 per cent.

The rangelands:

• Produce most of the State's mineral and energy wealth.

• Support important segments of the livestock industry.

• Are of special significance to the Aboriginal population.

• Offer major tourism potential.

• Contain essential elements of the State's biological diversity.

• Offer opportunities to produce horticultural …

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Heritability Of Cooking Time And Water Absorption Traits In Dry Beans (Phaseolus Vulgaris L.) Using A North Carolina Design Ii Mating Scheme, Fm Elia

Tanzania Journal of Science

Estimation of genetic variances, heritabilities and estimations of response to selection of the cooking time and water absorption traits of Andean gene pool of dry bean seed Phaseolus vulgaris L. were done. General combining ability (GCA) i.e. GCA males and GCA females, and Specific combining ability (SCA) were estimated. The parents were crossed in a North Carolina mating design II and genetic analysis was made on the F3 and F4. Both male and female effectations within sets for the cooking trait in F3 and F4 were highly significant for the traits studied. Variances due to General combining ability (GCA) and …

Spider And Leafhopper (Erythroneura Spp.) Response To Vineyard Ground Cover, Michael J. Costello, Kent M. Daane

Horticulture and Crop Science

Ground cover is used in some vineyards to improve soil structure and help manage insect pests; previous studies have shown lower leafhopper (Erythroneura spp.) densities on vines grown with ground cover. We undertook a 2-yr study to determine why ground cover is associated with reduced leafhopper densities. Ground cover consisted of a fall-planted cover crop of purple vetch (Vicia benghalensis) and barley (Hordeum vulgare), which senesced in May and was replaced by a complex of resident vegetation comprised primarily of the grasses Echinochloa spp., Digitaria sanguinalis, and Setaria spp., as well as common knotweed …