Digital Commons Network^™

Season And Distance From Forest - Old Field Edge Affect Seed Predation By White-Footed Mice, Scott J. Meiners, James T. Mccormick

Faculty Research & Creative Activity

We studied the spatial pattern of seed predation across a forest-old field edge in both fall and winter to assess the potential for seed predators to influence plant spatial patterns. We used a 100 x 100 m grid that began 30 m inside the forest and extended 60 m into the old field. Inside this grid we placed seed stations at regular 10 m intervals and monitored seed removal. Seed predation varied significantly across the edge gradient in both fall and winter with the highest rate of seed removal at the edge in both trials. The spatial pattern of seed …

Clothes Moths, Jay B. Karren

All Archived Publications

No abstract provided.

The Home Orchard Pest Management Guide, Diane Alston, Sherman Thomson

All Archived Publications

No abstract provided.

Small Pasture Management Guide For Utah, James Barnhill, Shawn Olsen, Randy Sessions, Dean Miner, Tiffany Julen-Day, Niels Hansen, Clark Garn

All Archived Publications

No abstract provided.

Agroforestry In The United States: Research And Technology Transfer Needs For The Next Millennium

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

If society's needs and aspirations for forestderived goods, services, and amenities truely are to be met, we must find ways of augmenting traditional forestry by gleaning some portion of these benefits from agricultural lands. For example: windbreaks, riparian forest buffers, hybrid poplar trees, farm woodlots, and grazing/timber systems.

Yuccas (Agavaceae) Of The International Four Corners: Southwestern Usa And Northwestern Mexico, Lee W. Lenz, Michael A. Hanson

Aliso: A Journal of Systematic and Floristic Botany

Yuccas (Yucca, Agavaceae) are an easily recognizable constituent of the vegetation of the International Four Corners; an area made up of portions of Arizona, New Mexico, Sonora and Chihuahua. We recognize three species as native to the region, Yucca baccata, Y. elata and Y. madrensis, together with interspecific hybrids, and document for the first time naturally occurring intersectional hybridization between baccate-fruited (sect. Yucca) and capsular-fruited (sect. Chaenocarpa) species. We examine the reproductive barriers to hybridization operating within the genus, i.e., spatial, temporal and ethological, and we consider circumstances that may have been responsible for the production and …

The Pseudomonas Syringae Hrp Pathogenicity Island Has A Tripartite Mosaic Structure Composed Of A Cluster Of Type Iii Secretion Genes Bounded By Exchangeable Effector And Conserved Effector Loci That Contribute To Parasitic Fitness And Pathogenicity In Plants, James R. Alfano, Amy O. Charkowski, Wen-Ling Deng, Jorge L. Badel, Tanja Petnicki- Ocwieja, Karin Van Dijk, Alan Collmer

Center for Plant Science Innovation: Faculty Publications

The plant pathogenic bacterium Pseudomonas syringae is divided into pathovars differing in host specificity, with P. syringae pv. syringae (Psy) and P. syringae pv. tomato (Pto) representing particularly divergent pathovars. P. syringae hrp/hrc genes encode a type III protein secretion system that appears to translocate Avr and Hop effector proteins into plant cells. DNA sequence analysis of the hrp/hrc regions in Psy 61, Psy B728a, and Pto DC3000 has revealed a Hrp pathogenicity island (Pai) with a tripartite mosaic structure. The hrp/hrc gene cluster is conserved in all three strains and is flanked by a unique exchangeable …

Berries - Half A Million Deer Can't Be Wrong, Dennis Hinkamp

All Archived Publications

No abstract provided.

Center For Grassland Studies Newsletter, Winter 2000, Volume 6, No. 1

Center for Grassland Studies: Newsletters

Contents:

Genetically Enhanced Turfgrasses Where Are We Going? by Terrance Riordan, Department of Horticulture, University of Nebraska-Lincoln

NUBEEF Educational Web Site for Beef Producers by Rick Rasby, Department of Animal Science, University of Nebraska-Lincoln

Bison Symposium in Lincoln April 6-8

CGS Welcomes Laurice Matulka

GLCI Lists Benefits of Grazing Lands

Glickman Calls for National Commitment to Preserve Private Land

Nebraska Ranch Practicum Again Offered

2000 Nebraska Range Short Course by Lowell Moser, Department of Agronomy, UNL

Technology Spurs Alfalfa Genome Mapping

Field Trip Graduate Course Focuses on East Coast Ecology

April 1 Deadline for Abstracts: National Conference on Grazing Lands

Nebline, January 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Is your house healthy?
Landscaping the front yard
Humidity in home effects plants too
Amaryllis — Save that bulb for next year
Air layering tropical plants
Got the winter itches? Read this and itch some more
The giving tree
Swarming ants in the middle of winter?
Winter bubbles
Area producers planning to shift production to value-added grains
Pesticide Applicators Training
Grain check can save crop
Nebraska Conservation Trees Program
Selecting trees and shrubs
Pruning windbreak trees
Fertilizing trees
Providing water for winter birds
A safe kitchen
Healthy Eating
What to do if your power goes off: freezer/refrigerator guidelines
Focus on …

Bovine Blastocyst-Derived Trophectoderm And Endoderm Cell Cultures: Interferon Tau And Transferrin Expression As Respective In Vitro Markers, Neil C. Talbot, Thomas J. Caperna, J. Lannett Edwards, Wes Garrett, Kevin D. Wells, Alan D. Ealy

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

Continuous cultures of bovine trophectoderm (CT-1 and CT- 5) and bovine endoderm (CE-1 and CE-2) were initiated and maintained on STO feeder cells. CT-1 and CT-5 were derived from the culture of intact, 10- to 11-day in vitro-produced blastocysts. CE-1 and CE-2 were derived from the culture of immunodissected inner cell masses of 7- to 8-day in vitro-produced blastocysts. The cultures were routinely passaged by physical dissociation. Although morphologically distinct, the trophectoderm and endoderm both grew as cell sheets of polarized epithelium (dome formations) composed of approximately cuboidal cells. Both cell types, particularly the endoderm, grew on top …

Basic Biotechnology, Jennifer Flak, Julie Albrecht

Plant and Soil Sciences eLibrary

An introduction to traditional cross-breeding and genetic engineering of plants, and to biotechnology.

Objectives - Basic Biotechnology

After completing Nutrition Basic Biotechnology, participants should be able to:

• Describe one similarity between traditional cross-breeding and genetic engineering of plants.
• Give two limitations that are encountered with traditional cross-breeding of plants.
• Explain why genetic engineering is not limited in the same way as traditional cross-breeding.
• Define biotechnology in broad terms.
• List three plant applications of biotechnology.
• List the three areas of nutritional profiles that have been improved with biotechnology.

Modules:

• Lesson home
• Objectives - Basic Biotechnology
• Historical Uses of Biotechnology
• Basic Understanding …

Trends In Alfalfa Production And The Beef And Dairy Industries In Kentucky During 1989-98, Dennis Hancock, Michael Collins

Agronomy Notes

On suitable soils, alfalfa produces the highest yield of nutrients possible from a perennial forage crop. However, high production costs and restrictive soil requirements have limited the production of alfalfa in Kentucky. High producing dairy cows respond well to premium quality forage, so alfalfa is a preferred forage crop in dairy production. Thus, alfalfa production is primarily contingent on the producer’s method of marketing the crop.

Index To Volumes 18 And 19

Aliso: A Journal of Systematic and Floristic Botany

No abstract provided.

Discovery: The Student Journal Of Dale Bumpers College Of Agricultural, Food And Life Sciences - Volume 1 2000, Several Authors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Contents, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Physiology And Reproduction: Plasma 17Β-Estradiol Levels And Ovarian Interstitial Cell Structure In Embryonic Japanese Quail, M. A. Abdelnabi, M. R. Bakst, J. E. Woods, M. A. Ottinger

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

Plasma concentrations of 17β-estradiol (E₂) and left ovarian histology were investigated by light and electron microscopy in female Japanese quail from Day 10 of embryonic development through Day 7, posthatch. Plasma E₂ levels remained relatively constant (102 to 140 pg/mL) in the embryo followed by a sharp decrease posthatch (47 to 70 pg/mL).

Beginning on Day 10 of incubation, cells in the medullary portion (medullary cell; MC) of the left ovaries exhibited ultrastructural evidence of steroidogenic capability. The MC had numerous lipid droplets in close proximity to the smooth endoplasmic reticulum (SER). Mitochondria were also …

Yields And Nitrogen Dynamics In A Rice–Wheat System Using Green Manure And Inorganic Fertilizer, Milkha S. Aulakh, Tejinder S. Khera, John W. Doran, Kuldip Singh, Bijay Singh

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

Integrating fertilizer N (FN) with legume green manures (GM) can foster sustainable and environmentally sound agricultural systems in subtropical, semiarid soils low in organic matter. A 4-yr replicated field experiment with irrigated rice (Oryza sativa L.) and wheat (Triticum aestivum L.) rotations was conducted on a sandy loam soil in the Punjab of India to evaluate the effects of incorporating cowpea (Vigna unguiculata L.) or sesbania (Sesbania aculeata L.) GM on crop productivity, N-use efficiency, and NO₃ leaching. Rice grain yields with pretransplant incorporation of 20 and 40 Mg GM ha^-1 (GM₂₀ and …

Design And Application Of A Polyclonal Peptide Antiserum For The Universal Detection Of Leptin Protein, Mark P. Richards, Thomas J. Caperna, Theodore H. Elasser, Christopher M. Ashwell, John P. Mcmurtry

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

An epitope-specific polyclonal antiserum was produced in rabbits immunized against a synthetic 15 amino acid peptide (QRVTGLDFIPGLHPV) derived from the coding sequence reported for the porcine leptin gene (GenBank Accession No. U59894). This peptide contains a core sequence comprised of eight amino acids (GLDFIPGL) that is totally conserved in all leptin proteins studied to date. Purified recombinant human, mouse, rat, pig, and chicken leptin proteins were separated by polyacrylamide gel electrophoresis (SDS-PAGE) and electro-blotted onto PVDF membranes. Western blots were developed employing the leptin-specific peptide antiserum with an alkaline-phosphatase-conjugated anti-rabbit IgG second antibody chromogenic system. The peptide antiserum was found …

Letter From The Dean, Charles J. Scifres

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Instructions For Authors, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Abstracts From The Student Presentations Of The Arkansas Chapter Of Gamma Sigma Delta, Discovery Editors

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

Mapping The Boulder City Wetlands Using A Global Positioning System (Gps) And A Geographic Information System (Gis), Jennifer Lea Bishop

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Boulder City Wetlands is a constructed wetlands park located in Boulder City, Nevada, approximately 23 miles southeast of Las Vegas, Nevada. Currently, a baseline study of water quality is being conducted in the Boulder City Wetlands. This baseline study of the wetlands is an important step in understanding the development of the Boulder City Wetlands over time. As wastewater is eventually introduced into the existing community tap water running through the wetlands, it is expected that the nitrogen within the water will enhance the growth of vegetation in the surrounding area. Comparing the vegetation growth over time is only …

Raised Beds Prevent Waterlogging And Increase Productivity, Greg Hamilton, Derk Bakker, David Houlebrook, Cliff Spann

Journal of the Department of Agriculture, Western Australia, Series 4

Permanent Raised Beds are proving to be a revolutionary means of preventing waterlogging and a substantially increasing the productivity of wet and poorly productive land in Western Australia. In just three years, a research project has seen significant improvements in yield and reductions in waterlogging.

Mango Growing In Western Australia, P R. Johnson, D C. Parr

Bulletins 4000 -

This bulletin covers mango growing in Western Australia in Kununurra, Carnarvon, Kimberly, Gingin, Perth regions. Details include climate requirements, soils, propagation, planting, spacing, weed control, nutrition, pests, diseases and disorders, pruning, harvesting and packing, ripening and storage, and processing.

Bulletin No 4315 - Western Australia's Agricultural, Food & Fisheries Industries 1999 - 2000, Besko Trhuij, Francis D'Emden

Bulletins 4000 -

Fifth Edition (revised and updated) December 2000.

Western Australia’s agriculture and fisheries industries have an international reputation for providing premium quality food and fibre produce to customers around the world.

The State of Western Australia is setting the international quality standard in the production of a vast array of food, fibre and fisheries products.

Agriculture Western Australia has developed the Safe Quality Food System (SQF2000), which not only meets stringent world food standards, but is being adopted in many countries as a unique trademark of quality.

Free of many pests, diseases and pollution found elsewhere, the State offers produce sourced …

Bulletin 4446 - Ord Land And Water Management Plan 2000, Agriculture Western Australia, Community Of Kununurra

Bulletins 4000 -

The wise use of the land and water of the Ord has become an imperative driven by increasing awareness of the impacts of current uses on ground water and the on the quality of the Ord River itself.

We have been lucky as a community that these resources are still in reasonable order and that we have the time to address the resource management challenges associated with our use of them. There is a wide range of land and water management issues to be addressed and all those involved have responsibilities to address some of those issues.

Dalyup Catchment 2000, Esperance Catchment Support Team

Natural resources published reports

This 'State of the Dalyup Catchment' document is a snapshot of the condition of the Catchment in the year 2000. It records the current level of knowledge of the natural resources in the Catchment and discusses some of the management issues and options. This document is a benchmark and through ongoing monitoring, trends in the condition of the Catchment can be identified.

Its primary purpose is as a tool for resource planning such as a surface water management plan, river action plan or revegetation plan. It can also be used in the preparation of funding applications.

Evaluation Of 4 Small Doses Of Fertilizer In Growing Maize (Zea Mays L.) In Two Communities Of San Juan Ermita, Chiquimula, Victor Estuardo Villalta Garcia

Theses and Dissertations

Corral de Piedra and Salitron are two communities located in the municipality of San Juan Ermita, which is in the department of Chiquimula, Guatemala. In both communities, the land has very sloped topography with slope grades ranging from 12 to 55%. Agriculture is the main production activity with corn (Zea mays L.) and beans (Phaseolus vulgaris) being the crops of greatest economic importance. These crops are planted through a system of sequential association commonly called relay. First, corn is planted at the beginning of the rainy season (May or June). Once it has completed its reproductive cycle, beans are planted …

Evaluation Of Forty-Two Corn (Zea Mays L.) Genotypes And Their Tolerance To Drought In Chiquimula, Servin Ardany Flores Galdámez

Theses and Dissertations

The Corral de Piedra community is located in Chiquimula, Guatemala. The main agricultural activities are corn and bean production, small-scale gardens, and small animal production, such as poultry and pigs. The crop areas are predominantly located on lands with slopes between 12 and 55%, presenting low fertility conditions and poor moisture retention capabilities. In addition, local crop varieties have low productivity potentials and the winter season is characterized by poorly distributed and erratic periods of rain. The Benson Institute introduced a technology transfer model to increase and diversify agricultural production, while preserving current natural resources. An integral part of this …