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Computer Simulation And Mathematical Models Of The Noncentrosomal Plant Cortical Microtubule Cytoskeleton, Ezgi Can Eren, Natarajan Gautam, Ram Dixit

Biology Faculty Research

There is rising interest in modeling the noncentrosomal cortical microtubule cytoskeleton of plant cells, particularly its organization into ordered arrays and the mechanisms that facilitate this organization. In this review, we discuss quantitative models of this highly complex and dynamic structure both at a cellular and molecular level. We report differences in methodologies and assumptions of different models as well as their controversial results. Our review provides insights for future studies to resolve these controversies, in addition to underlining the common results between various models. We also highlight the need to compare the results from simulation and mathematical models with …

2011 Deer Creek Ranch Wetland Vegetation Survey, Robert F. Steinauer

Nebraska Game and Parks Commission: White Papers, Conference Presentations, and Manuscripts

The approximately 75,000 acre Deer Creek Ranch (owned by Ted Turner) lies on the south side of the Niobrara River in northeastern Sheridan County, Nebraska (Figure 1). The majority of the ranch lies within the Sandhills, with Sandhill dune prairie being the predominant vegetation type. Two significant streams, Deer Creek and the Snake River, originate on the ranch. The primary purpose of the Deer Creek Ranch surveys was to document native wetland plant communities and rare plant species occurrences and to provide vegetation management recommendations for plant communities bordering these two stream. Also surveyed were Chokecherry and Hackberry Lakes in …

Farmer Panel--Getting More From Your Alfalfa, Charles Powell

Kentucky Alfalfa and Stored Forage Conference

Powell Farms started in 1996 with 15 acres of Alfalfa hay intended for cow/calf feed. A neighbor and his friends bought every bale that year. Over the next 14 years the only alfalfa hay our cows got to eat was when a cutting got wet and was rolled. Production per acre was good, demand exceeded production and price per bale continued to rise. Roundup Ready came on the market and we were finally able to produce clean pure high quality alfalfa. All was going well for our alfalfa business. Then came the 2008 challenge with the economic down turn, drought …

Farmer Panel--Managed Grazing And Profits, Bill Payne

Kentucky Alfalfa and Stored Forage Conference

Profits are the goal of any business model and mine is no exception. My plan assumes that available natural resources are efficiently utilized in a responsible manner.I have chosen to implement that plan by producing, managing and marketing our forage resources by utilizing Management Intensive Grazing (MIG.)

Farmer Panel--Managing A Commercial Hay Farm, Clayton Geralds

Kentucky Alfalfa and Stored Forage Conference

In his presentation Clayton will discuss equipment he utilizes for establishing, maintaining, and harvesting top quality horse hay. He will also provide an overview of his expectations for yield and quality of his product as well as proper input and storage requirements.

Role And Importance Of Alfalfa In Beef Diets, Jeff Lehmkuhler

Kentucky Alfalfa and Stored Forage Conference

Alfalfa is often referred to as the “Queen” of forage. Is this because of its high fertility needs and more finicky soil fertility needs along with greater management for optimal growth and persistency? Or is it because of it being on top of nearly all other forages for yield and quality? Truth be told, it is likely a combination of all these factors. Alfalfa is a versatile forage as it can be harvested for hay or silage and also grazed with proper management. For these reasons, this forage can fit well in beef operations.

Alfalfa Hay For Horses, Robert Coleman

Kentucky Alfalfa and Stored Forage Conference

When horse owners consider hay for their horses, a number of criteria are generally considered. Of major importance is the hay must be free of mold and dust. It needs to contain nutrients needed by the horse and it must be palatable. If these criteria are met, the type of hay should not matter. However, that is not the case with many horse owners. When discussing the selection of hay, many owners first consider the type of hay. Can it be alfalfa or should it be a grass or how about a mix of grass and a legume. If a …

National Alfalfa & Forage Alliance, Beth Nelson

Kentucky Alfalfa and Stored Forage Conference

The National Alfalfa & Forage Alliance (NAFA) was formed on April 6, 2006. Its membership consists of state/regional seed associations, state/regional hay associations, genetic suppliers, seed marketers, allied industry, and research/extension affiliates. Each of these industry segments has representation on the NAFA board of directors.

Status And New Developments In Seed Coatings, Bill Talley

Kentucky Alfalfa and Stored Forage Conference

The acceptance and use of coated alfalfa seed has become the standard of how alfalfa seed is being sold. Coated seed, refers to a buildup in coating material of 10-34%. Seventy percent of proprietary alfalfa seed is now buildup coated, and 80 % of that amount is a 34% coating. The remaining is a 10% buildup and is usually only used as a carrier for inoculation and fungicide. The higher buildup coatings are able to carry more active ingredients that also enhance the agronomic benefit to the young seedling. The benefits to the young seedling, from the components of the …

Kentucky Department Of Agriculture Hay Testing Program, Kim Field

Kentucky Alfalfa and Stored Forage Conference

The Kentucky Department of Agriculture offers a forage testing service which provides nutritional and energy value information. A Kentucky Department of Agriculture staff member will take sample(s) of hay and/or haylage at the farm and analyze them in the Kentucky Department of Agriculture Forage Laboratory located in Frankfort. Tested forages can mean higher profit, whether feeding cattle, horses, goats, sheep or other livestock. By knowing the nutritional and energy value, you can minimize your cost and maximize your production.

Marketing Quality Hay, Tom Keene

Kentucky Alfalfa and Stored Forage Conference

When marketing quality alfalfa hay, you basically have two markets that you are going to try to target. First, you are going to be in the cash hay market, that’s where you will sell alfalfa hay to several different entities…..locally, statewide, nationally, or potentially internationally. Secondly, and more commonly, you will be marketing your hay to your own livestock enterprise on your farm. Several times every month, I have people call me and ask me what their hay is worth. I tell them very honestly I have no idea what their hay is worth; only by keeping track of their …

How Are Roundup Ready Varieties Performing, S. Ray Smith

Kentucky Alfalfa and Stored Forage Conference

Roundup Ready® Alfalfa

The most significant new development in alfalfa varieties was the January 27, 2011 decision by USDA to deregulate Roundup Ready® Alfalfa (RRA) without conditions. This was the final step in an extensive environmental review process by the USDA that took place over a 4 year period of time. If you would like to know more about the safety of Roundup Ready® Alfalfa you can review the complete Environmental Impact Statement at: http://www.aphis.usda.gov/biotechnology/downloads/alfalfa/gt_alfalfa%20_feis.pdf.

Most importantly, seed dealers in Kentucky and surrounding states now have Roundup varieties available for sale.

Getting More From Your Alfalfa, Garry D. Lacefield

Kentucky Alfalfa and Stored Forage Conference

Today marks the 32nd consecutive year we have come together to discuss alfalfa and its role on your farm, in Kentucky, and our nation. Over these 32 years we have discussed many topics and seen many advances, unfortunately we aren’t making progress relative to acres, yield and quality that I would like to see. Maybe I am getting impatient as I am actually thinking about retirement. Now wait, you are one step ahead of me. I know you are thinking he has shown many graphs, tables and charts over the years showing how we have improved and yes, I know …

Foreword And Recipients Of Kentucky Alfalfa Awards [2012], Garry D. Lacefield, Christi L. Forsythe

Kentucky Alfalfa and Stored Forage Conference

No abstract provided.

Analysis Of Saint John's Maple Syrup Records: 1942-2009, Stephen G. Saupe

Headwaters

No abstract provided.

Diversification And Expression Of The Pin, Aux/Lax, And Abcb Families Of Putative Auxin Transporters In Populus, Nicola Carraro, Tracy Elizabeth Tisdale-Orr, Ronald Matthew Clouse, Anne Sophie Knöller, Rachel Spicer

Botany Faculty Publications

Intercellular transport of the plant hormone auxin is mediated by three families of membrane-bound protein carriers, with the PIN and ABCB families coding primarily for efflux proteins and the AUX/LAX family coding for influx proteins. In the last decade our understanding of gene and protein function for these transporters in Arabidopsis has expanded rapidly but very little is known about their role in woody plant development. Here we present a comprehensive account of all three families in the model woody species Populus, including chromosome distribution, protein structure, quantitative gene expression, and evolutionary relationships. The PIN and AUX/LAX gene families …

Agricultural Research Magazine February 2012

Agricultural Research Magazine

Agricultural Research Magazine February 2012 whole issue

Fighting Nitrate in the Trenches

A New Way To Map Drought And Water Use Worldwide, Don Comis, William P. Kustas, Martha C. Anderson

Agricultural Research Magazine

Every month, the National Oceanic and Atmospheric Administration’s (NOAA) Center for Climate Prediction has a drought briefing by teleconference to identify the latest drought areas in North America.

ARS scientists Martha Anderson and Bill Kustas are hoping that in a year or so, data from their computer model/satellite package will give evapotranspiration (ET) maps a seat at that briefing. With funding from NOAAand the National Aeronautics and Space Administration (NASA), they have developed a modeling system that NOAA will use to generate ET estimates over the continental United States. NOAA will evaluate these ET products to see how well they …

2012-2013 Lime And Nutrient Recommendations, Lloyd Murdock, Edwin Ritchey

Agriculture and Natural Resources Publications

The recommendations found in this publication are a result of a biennial review of soil fertility research and soil test data collected in Kentucky.

Scotts Bluff National Monument, Plant Community Resource Brief, Isabel Ashton, Mike Prowatzke

United States National Park Service: Publications

2011 Monitoring Status

Overview

In 2011, the first year of vegetation monitoring by the Northern Great Plains Network Inventory and Monitoring staff at Scotts Bluff National Monument, efforts resulted in the documentation of 79 plant species. This was the lowest number of species among parks sampled in 2011. Graminoid (grass and grass-like plant) species accounted for only 21 (27%) of the total species, but graminoid cover was much higher than that of any other plant type. Forbs were much more diverse, but did not provide as much foliar cover.

The 5 most abundant native non-graminoids were winterfat (Krascheninnikovia lanata …

Plant Community Composition And Structure Monitoring Protocol For The Northern Great Plains I&M Network - Standard Operating Procedures, Version 1.01, Amy J. Symstad, Robert A. Gitzen, Cody L. Wienk, Michael R. Bynum, Daniel J. Swanson, Andy D. Thorstenson, Kara J. Paintner-Green

United States National Park Service: Publications

Introduction

The Northern Great Plains Inventory and Monitoring Network (NGPN) includes thirteen park units located in five northern Great Plains states across six ecoregions. Plant community composition and structure monitoring comprises the core of the vegetation monitoring effort for the NGPN, covering the “Riparian Lowland Plant Communities” and “Upland Plant Communities” vital signs (Gitzen et al. 2010). The narrative portion of the plant community protocol can be found in Symstad et al. 2012. The narrative includes the rationale for vegetation monitoring, an overview of sample design, field methods, data management, and program requirements. This document contains the standard operating procedures …

Wayne E. Sabbe Arkansas Soil Fertility Studies 2011, Nathan A. Slaton

Arkansas Agricultural Experiment Station Research Series

The studies described within will allow producers to compare their practices with the university’s research efforts. Additionally, soil-test data and fertilizer sales are presented to allow comparisons among years, crops, and other areas within Arkansas.

Two New Species Of Trigonotylus (Hemiptera: Heteroptera: Miridae: Stenodemini) From Western Canada And Northwestern United States, G G.E. Scudder, Michael D. Schwartz

Green Canyon Environmental Research Area, Logan Utah

No abstract provided.

Effect Of Tray Type And Tray Covering On Wicking Speed, Germination, And Spiral Rooting Of Tobacco, William A. Bailey, Bill Pitt

Plant and Soil Sciences Research Report

Poor tray wicking and spiral rooting continue to be recurring concerns in tobacco float systems. Poor wicking of trays can usually be attributed to old media or media that was improperly stored for extended periods of time. Tray design may also influence speed of wicking. The clay-based pelleting materials used to coat tobacco seeds are thought to cause damage to the emerging root radical under certain conditions, leading to an increased incidence of spiral root. Practices that change the microenvironment at the top of the cell area surrounding the seed may reduce spiral rooting by altering the breakdown of the …

Igrow Wheat: Best Management Practices For Wheat Production, David C. Clay, C. Gregg Carlson, Kevin Dalsted

Agronomy, Horticulture, and Plant Science Books

No abstract provided.

Suitability Of Low Cost Commercial Off-The-Shelf Aerial Platforms And Consumer Grade Digital Cameras For Small Format Aerial Photography, Anthony Allen Turley

Theses, Dissertations and Capstones

Many research projects require the use of aerial images. Wetlands evaluation, crop monitoring, wildfire management, environmental change detection, and forest inventory are but a few of the applications of aerial imagery. Low altitude Small Format Aerial Photography (SFAP) is a bridge between satellite and man-carrying aircraft image acquisition and ground-based photography. The author’s project evaluates digital images acquired using low cost commercial digital cameras and standard model airplanes to determine their suitability for remote sensing applications. Images from two different sites were obtained. Several photo missions were flown over each site, acquiring images in the visible and near infrared electromagnetic …

The Role Of Fine-Scale Habitat Associations In Structuring Spider Assemblages: Determinants Of Spatial Patterns In Community Compostion, Stephanie M. Cobbold

Green Canyon Environmental Research Area, Logan Utah

No abstract provided.

Livestock Foraging Behavior In Response To Sequence And Interactions Among Alkaloids, Tannins, And Saponins, Tiffany L. Jensen

Green Canyon Environmental Research Area, Logan Utah

No abstract provided.

Working Trees For Water Quality

Working Trees (USDA-NAC)

Water is a precious national resource. Often, human activities degrade the quality of the water in the streams, lakes, estuaries, wetlands, and aquifiers on which we depend. Pollutants from agricultural and urban sources have made many of our waters unsuitable for swimming and fishing. Excessive sedimentation, pesticides, and fertilizers are harming fish and other aquatic life. Changes in land use also have had a dramatic effect on floodwater damage and frequency. Both surface and subsurface drinking water supplies are being impacted by human activities.

Water quality is the end result of the individual actions of all the “neighbors” in a …

Changing The Way We Address Change, Richard Straight

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

Covers factors impacting private forest management in the United States, and other related issues.