Other Plant Sciences Commons^™

Influences Of Wind And Sandblasting On The Endangered Blowout Penstemon, James Stubbendieck, Cheryl D. Dunn, Heidi L. Hillhouse, L. M. Landholt

Department of Agronomy and Horticulture: Faculty Publications

Blowout penstemon Penstemon haydenii is a federally endangered species growing only in areas with active wind erosion in sand dunes of the central United States. This early seral species declines as the blowout habitat stabilizes, allowing later seral species to increase. Blowout penstemon populations and plant size declined in the 1990s when precipitation was higher than normal, resulting in reduced sand movement. We conducted a greenhouse experiment to determine whether blowing sand influenced vigor and persistence of blowout penstemon seedlings. Treatments were wind, sandblasting, wind with sandblasting, and a control. The wind treatment was a constant 14 km h^{–1 …}

Fine Mapping Of The Scn Resistance Locus Rhg1-B From Pi 88788, Myungsik Kim, David L. Hyten, Andrew F. Bent, Brian W. Diers

Department of Agronomy and Horticulture: Faculty Publications

Soybean cyst nematode (SCN) (Heterodera glycines Ichinohe) is the most economically damaging soybean [Glycine max (L.) Merr.] pest in the USA and genetic resistance is a key component for its control. Although SCN resistance is quantitative, the rhg1 locus on chromosome 18 (formerly known as Linkage Group G) confers a high level of resistance. The objective of this study was to fi ne-map the rhg1-b allele that is derived from plant introduction (PI) 88788. F₂ and F₃ plants and F_3:4 lines from crosses between SCN resistant and susceptible genotypes were tested with genetic markers to …

High-Throughput Snp Discovery And Assay Development In Common Bean, David L. Hyten, Qijian Song, Edward W. Fickus, Charles V. Quigley, Jong-Sung Lim, Ik-Young Choi, Eun-Young Hwang, Marcial Pastor-Corrales, Perry B. Cregan

Department of Agronomy and Horticulture: Faculty Publications

Background: Next generation sequencing has significantly increased the speed at which single nucleotide polymorphisms (SNPs) can be discovered and subsequently used as molecular markers for research. Unfortunately, for species such as common bean (Phaseolus vulgaris L.) which do not have a whole genome sequence available, the use of next generation sequencing for SNP discovery is much more difficult and costly. To this end we developed a method which couples sequences obtained from the Roche 454-FLX system (454) with the Illumina Genome Analyzer (GA) for high-throughput SNP discovery. Results: Using a multi-tier reduced representation library we discovered a total of …

Inoculation With Arbuscular Mycorrhizal Fungi Or Crop Rotation With Mycorrhizal Plants Improves The Growth Of Maize In Limed Acid Sulfate Soil, Hasao Higo, Katsunori Isobe, Dong-Jin Kang, Kazuhiro Ujie, Rhae A. Drijber, Ryuichi Ishii

Department of Agronomy and Horticulture: Faculty Publications

Arbuscular mycorrhizal fungi (AMF) improve the uptake of immobile mineral nutrients such as phosphate, thereby improving plant growth. In acid sulfate soil (ASS), AMF spore density is generally low which impacts root colonization and phosphate uptake. Thus, inoculation may help increase AMF colonization of crops grown in ASS. AMF spore density decreases after cultivation of a non-host crop or bare fallow. In addition, preceding crops affect the growth and yield of subsequent crops. The production of AMF inocula requires AMF-compatible plants. The objective of the present study is to elucidate the effect of preceding crops on the persistence of inoculated …

Fine Mapping Of The Soybean Aphid-Resistance Gene Rag2 In Soybean Pi 200538, Ki-Seung Kim, Curtis B. Hill, Glen L. Hartman, D. L. Hyten, Matthew E. Hudson, Brian W. Diers

Department of Agronomy and Horticulture: Faculty Publications

The discovery of biotype diversity of soybean aphid (SA: Aphis glycines Matsumura) in North America emphasizes the necessity to identify new aphid-resistance genes. The soybean [Glycine max (L.) Merr.] plant introduction (PI) 200538 is a promising source of SA resistance because it shows a high level of resistance to a SA biotype that can overcome the SA-resistance gene Rag1 from ‘Dowling’. The SA-resistance gene Rag2 was previously mapped from PI 200538 to a 10-cM marker interval on soybean chromosome 13 [formerly linkage group (LG) F]. The objective of this study was to fine map Rag2. This fine mapping …

Abundance Of Ssr Motifs And Development Of Candidate Polymorphic Ssr Markers (Barcsoyssr_1.0) In Soybean, Qijian Song, Gaofeng Jia, Youlin Zhu, David Grant, Rex T. Nelson, Eun-Young Hwang, D. L. Hyten, P. B. Cregan

Department of Agronomy and Horticulture: Faculty Publications

Simple sequence repeat (SSR) genetic markers, also referred to as microsatellites, function in map-based cloning and for marker-assisted selection in plant breeding. The objectives of this study were to determine the abundance of SSRs in the soybean genome and to develop and test soybean SSR markers to create a database of locus-specific markers with a high likelihood of polymorphism. A total of 210,990 SSRs with di-, tri-, and tetranucleotide repeats of five or more were identified in the soybean whole genome sequence (WGS) which included 61,458 SSRs consisting of repeat units of di- (≥10), tri- (≥8), and tetranucleotide (≥7). Among …

Nebline, November/December 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Middle School Youth on a “Nutrition Mission”
Roasts – Easy to Make for the Holidays and Any Other Time, Too!
Family & Community Education (FCE) Clubs: Presidents’ Notes—Bonnie’s Bits
FCE News & Events
Household Hints: Get a Handle on Holiday Cleaning
Radon—A Health Hazard
Computer Cleaning—Hotspots for Germs
Flexible Cash Lease Provisions
Thistle Control Still Possible This Fall — but Hurry
Use Season-Long Records to Assess Pumping Plant Performance
Diversity is the Key to Attracting Wildlife
Provide Basic Needs to Attract Birds
Relocating Problem Wild Animals: Not as Humane as Most People Think
Evergreen Colors for Winter
Fall Vegetable Garden …

Nebline, October 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Extension Helps Establish a Garden at City Mission
Nutrition Classes Focus on Produce from Garden
How to Reduce Energy Cost for Grain Drying
Tree Planting for Success
Successful Composting
$tretch Your Food Dollar by Making Your Own Mixes
Slow Cookers and Food Safety
Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Household Hints: End-of-Summer Cleanup
10 Tips for Parent-Teacher Conferences
Drying Gourds
Growing American Bittersweet
Storing Vegetables
Praying Mantids: Garden Carnivores
Problem Squirrels in Buildings
October's Heart of 4-H Award Winner: Jennifer Cusick-Rawlinson
Nebraska State Fair 4-H Results
Free Speech: UNL Speakers Bureau in 15th …

Nebline, September 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

September is Preparedness Month
Overseeding Lawns
Water Young Trees to Prevent Winter Damage
Winterizing Your Home
Propagating Plants from Cuttings
Just Like Kids, Head Lice are Back in School
When a Bat Gets Indoors
Eating Locally Grown Foods in the Fall
Get Your Grains
Laundry Tips for Back-to-School Garments and Stains
Parent-Teacher Communication
Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Household Hints: Recognize Symptoms of Stress
Ten Tips for Welcoming Wildlife into Your Landscape
Weedy Vines: Identification and Control
Winter Annual Weeds in Lawn
Fall is a Good Time to Control Weeds
September's Heart …

Impact Of Weed Management Practices On Grapevine Growth, Yield Components, Plant And Arthropod Abundance, And Carabid Seed Predation In Paso Robles Vineyard, Paolo Sanguankeo

Master's Theses

In the Central Coast of California, USA, wine grape growers are making efforts to identify weed control practices that promote biodiversity in their vineyards while maintaining yields. A field study was conducted in Paso Robles, CA in 2006 and 2007 evaluating the effect on Zinfandel grape-vine growth and production, groundcover plant, and ground dwelling arthropod communities of five weed control practices: 1) flumioxazin, 2) simazine, 3) cultivation, 4) cover crop, and 5) untreated control.

The herbicide treatments had the lowest weed biomass followed by the cultivation, being approximately 10 and 2 times lower than the weed biomass of either the …

Nebline, August 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Landscape Water Saving Methods
Natural Sources of Nitrogen for Plant Growth
Commercial Nitrogen Fertilizer Sources
Pumping Water For Ponds
Canning Fruits and Vegetables
Heating With Wood
Fall Prairie Seeding Site Preparation
Handling Food Safely on the Road $tretch Your Food Dollar by Packing Your Lunch Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Household Hints
Financial Security: Consumer Credit
Running Out of Time for Bagworm Control
Harvesting and Preserving Herbs
Summertime Bug Bites
Taking Insect Photos at Spring Creek Prairie
4-H’ers Test Animal Science Skills at PASE
4-H’ers Test Family and Consumer Sciences Skills at …

Nebline, July 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Lancaster Rural Water District: Providing Water to Acreages and Villages for 35 Years
Watch for Blister Beetles in Alfalfa
Use of Copper Compounds to Control Algae in Farm Ponds
Two-Spotted Spider Mites
Water Conservation at Home Begins in the Bathroom, Laundry Room
Harvesting Rainwater Helps Conserve Water and Save Money
What to Do with Zucchini!
Fruits Are Good Source of Nutrients
Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Household Hints: Environmental and Energy Saving Tips When Washing Dishes
Learn the Signs/Act Early Autism Awareness
Summer Safety Tips
There is Still Time to Control Bagworms …

Nebline, June 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Proper Timing Crucial for Bagworm Control
Enjoy Eating Locally Grown Foods!
Drink Your “D” with Dairy
Resurgence in Farmers’ Markets is Good News
Follow Guidelines when Selling Crops Directly to Consumers
Ten Lawn Irrigation Tips
Determining and Sharing Irrigation Costs
When to Harvest Bromegrass Hay
Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Household Hints: Air Conditioner Maintenance
June — National Safety Month
Ten Tips for Fertilizing Your Lawn
Bagworms on a Variety of Plants
Bed Bug Bites
Bed Bug Interceptors
4-H Life Challenge Contests
Lancaster County 4-H Horse VIPS Pre-Districts Format Clinic/Show/Fundraiser
4-H Clover …

Nebline, May 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Bed Bugs Come Back with a Vengeance: Controlling Them Quickly is Key to Slowing Their Spread
Bird Watching: A Little Backyard Therapy
May is Time to Control Leafy Spurge
Recognize/Control Phragmites
Getting the Most Out of CRP
Gluten-Free Sorghum Recipes
Eat a Variety of Vegetables
Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Household Hints: Removing Pollen Stains
May is Clean Air Month: Important Asthma Triggers
Encourage Communication Within the Family
Hand Picking Bagworms an Effective Control
ReTree Nebraska: Important to Diversify When Replanting
Managing Aquatic Plant Life
Using Animal Manure in the Garden
Control …

Nebline, April 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Urban Youth Learn About Agriculture at Local Ag Awareness Festivals
Renting Livestock Facilities
Is Sainfoin Right For You?
Wind Energy Seminars Archived on the Web
Backyard Organic Gardens Need Work but Have Increased Benefits
Pre-emergent Herbicide Application Time
Act Early to Control Musk Thistles
Study Shows Transplanted Trees Grow Better Without Grass Nearby
Eat Your Breakfast— Your Body will Thank You!
Easter Egg Tips
Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Household Hints: Housekeeping Organization
Wring Out the Old; Bring in the New: Debunking Some Common Cleaning Practices
Boost Your Child’s Brain Power
Children …

Impacts Of Plant Size, Density, Herbivory, And Disease On Native Platte Thistle (Cirsium Canescens), Deidra Jacobsen

Department of Environmental Studies: Undergraduate Student Theses

Abstract. Based on prior field observations, we hypothesized that individual and interacting effects of plant size, density, insect herbivory, and especially fungal disease, influenced seedling and juvenile plant growth in native Platte thistle populations (Cirsium canescens Nutt.). We worked at Arapaho Prairie in the Nebraska Sandhills (May - August 2007), monitoring plant growth, insect damage, and fungal infection within different density thistle patches. In the main experiment, we sprayed half of test plants in different density patches with fungicide (Fungonil© Bonide, containing chlorothalonil) and half with a water control. Fungal infection rates were very low, so we found no difference …

Evaluating Hazelnut Cultivars For Yield, Quality And Disease Resistance, Sam Tobin

Department of Environmental Studies: Undergraduate Student Theses

ABSTRACT This long term study focuses on testing various hazelnut cultivars for yield, nut quality and disease resistance. There are various cultivars that are being tested for these desired traits but only the Grand Traverse and Skinner will be applicable for the results of this localized study. The desired traits of commercial nut production are best matched by these two cultivars. Results from previous harvests will be used to draw trends to recommend commercially functional cultivars in Eastern Nebraska.

Nebline, March 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

4-H Embryology: More Than Just a Science Project!
How to Account for Differences in Moisture Content in Commodities
Controlling Winter Annual Brome with Herbicides
Canada Geese Populations are Increasing
Managing Pocket Gophers
Do a “Don’t Do” List!
5 More Main Dishes—Each Using Only 5 Ingredients
Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Household Hints: Removing Soot from Carpet
Tips to Help Parents Talk to Their Kids About Sex and Technology
Local Bagworm Control Initiative
2009 Great Plants Selections
Early Detection is Key to Minimizing Insecticide Use in Home Gardens
Bird House Care Is Important …

Nebline, February 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

13 Fun Ways to Eat More Fruites and Vegetables!
Farmland Leasing Workshop, Feb. 11
Soil Fertility and Phosphorus
Private Pesticide Applicator Certification Opportunities
The Value of Landscaping
Are You Winning the “Fruit & Vegetable Bowl Game”?
5 Main Dishes—Each Using Only 5 Ingredients
Family & Community Education (FCE) Clubs: Presidents’ View—Bonnie’s Bits
FCE News & Events
Beltline FCE Club: 1931–2008
Household Hints: How to Keep Red Clothes from Turning Pink
Small Steps to Health and Wealth
2009 All-America Selections
Starting Tender Perennials Indoors
Garden Guide: Things to Do This Month
Tree Squirrels and Rabbits are Active in Winter
Beginning Beekeeping …

Nebline, January 2009

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Creating a Strong Family: Strong Families Have Six Common Characteristics
Ways to Spend Time With Your Family in January
Private Pesticide Applicator Certification Opportunities
Soybean Cyst Nematode Spreading in Nebraska: Free Soil Sampling Kits at Extension Offices
Mystery “Bites”: Unidentifiable Skin Problems Usually Have Non-Insect Causes
Raccoons in the City
2009 Wall Calendar
Beginning Beekeeping 2-Day Workshop
2009 All-America Rose Selections
Shopping for Plants and Seeds
Garden Guide: Things to Do This Month
Birds Need Water In Winter
Attract Winter Birds With Feeders
Top 10 Myths of Entrepreneurship
Winter Houseplant Care
Wishing You a Healthy H-A-P-P-Y N-E-W Y-E-A-R!
$tretch Your …

Letter From The Dean, Lalit Verma

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

No abstract provided.

Bulked Segregant Analysis Using The Goldengate Assay To Locate The Rpp3 Locus That Confers Resistance To Soybean Rust In Soybean, D. L. Hyten, James R. Smith, Reid D. Frederick, Mark L. Tucker, Qijian Song, P. B. Cregan

Department of Agronomy and Horticulture: Faculty Publications

Few resistance loci to soybean rust (SBR), caused by Phakopsora pachyrhizi Syd., have been genetically mapped and linked to molecular markers that can be used for marker assisted selection. New technologies are available for single nucleotide polymorphism (SNP) genotyping that can be used to rapidly map traits controlled by single loci such as resistance to SBR. Our objective was to demonstrate that the highthroughput SNP genotyping method known as the GoldenGate assay can be used to perform bulked segregant analysis (BSA) to fi nd candidate regions to facilitate effi cient mapping of a dominant resistant locus to SBR designated Rpp3 …

Mapping And Confirmation Of A New Allele At Rpp1 From Soybean Pi 594538a Conferring Rb Lesion–Type Resistance To Soybean Rust, Nanda Chakraborty, Joe Curley, Reid D. Frederick, D. L. Hyten, Randall L. Nelson, Glen L. Hartman, Brian W. Diers

Department of Agronomy and Horticulture: Faculty Publications

Soybean rust, caused by Phakopsora pachyrhizi (H. Sydow & Sydow), is a destructive soybean [Glycine max (L.) Merr.] disease and identification of new resistance genes is essential for effective rust management. Our research objectives were to map and confirm the location of resistance gene(s) in PI 594538A using a population of 98 F_3:4 lines from across between PI 594538A (reddish-brown [RB] lesions) and the susceptible cultivar Loda (tan [TAN] lesions). The lines were inoculated with the P. pachyrhizi isolate ZM01-1 from Zimbabwe. The RB resistance in PI 594538A mapped on linkage group G as a single dominant gene. …

Detection And Validation Of Single Feature Polymorphisms Using Rna Expression Data From A Rice Genome Array, Sung-Hyun Kim, Prasanna R. Bhat, Xinping Cui, Harkamal Walia, Jin Xu, Steve Wanamaker, Abdelbagi M. Ismail, Clyde Wilson, Timothy J. Close

Department of Agronomy and Horticulture: Faculty Publications

Background: A large number of genetic variations have been identified in rice. Such variations must in many cases control phenotypic differences in abiotic stress tolerance and other traits. A single feature polymorphism (SFP) is an oligonucleotide array-based polymorphism which can be used for identification of SNPs or insertion/deletions (INDELs) for high throughput genotyping and high density mapping. Here we applied SFP markers to a lingering question about the source of salt tolerance in a particular rice recombinant inbred line (RIL) derived from a salt tolerant and salt sensitive parent. Results: Expression data obtained by hybridizing RNA to an oligonucleotide array …

Antibiotic Use In Animal Production: Environmental Concerns, Teshome H. Regassa, Richard K. Koelsch, Charles S. Wortmann, Richard F. Randle, Akwasi A. Abunyewa

Department of Agronomy and Horticulture: Faculty Publications

Introduction

Antibiotic1 use in animal production has led to improved feed use efficiency and increased growth rates. In turn, these resulted in reduced food production costs and reduced excrement of manure nutrients which may cause pollution problems.

On the other hand, antibiotic use leads to antibiotic resistance and a possible reduction in effectiveness of treatment options for both animals and humans. This publication addresses these issues.

Disease-causing microorganisms2, including bacteria,are the most diverse and numerous organisms on earth. Diverse in their habitat, environmental adaptation, and mechanisms of reproduction, they have short generations with high multiplication rates. Such characteristics help develop …

A High-Oleic-Acid And Low-Palmitic-Acid Soybean: Agronomic Performance And Evaluation As A Feedstock For Biodiesel, George L. Graef, Bradley J. Lavallee, Patrick Tenopir, Mustafa Tat, Bruce Schweiger, Anthony J. Kinney, Jon H. Van Gerpen, Thomas E. Clemente

Department of Agronomy and Horticulture: Faculty Publications

Phenotypic characterization of soybean event 335-13, which possesses oil with an increased oleic acid content (> 85%) and reduced palmitic acid content (< 5%), was conducted across multiple environments during 2004 and 2005. Under these conditions, the stability of the novel fatty acid profile of the oil was not influenced by environment. Importantly, the novel soybean event 335-13 was not compromised in yield in both irrigated and non-irrigated production schemes. Moreover, seed characteristics, including total oil and protein, as well as amino acid profile, were not altered as a result of the large shift in the fatty acid profile. The novel oil trait was inherited in a simple Mendelian fashion. The event 335-13 was also evaluated as a feedstock for biodiesel. Extruded oil from event 335-13 produced a biodiesel with improved cold flow and enhanced oxidative stability, two critical fuel parameters that can limit the utility of this renewable transportation fuel.

Evaluation Of Competition Between Turfgrass And Trees In The Landscape, Christopher A. Hendrickson

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Population growth in regions of the Intermountain West has resulted in rapid growth of residential neighborhoods. In Utah, the landscapes associated with these expanding neighborhoods consume vast quantities of treated water. This is a concern in all states of the Intermountain West, as water becomes increasingly scarce. Traditionally used turfgrasses, trees and other plants in Intermountain West landscapes require significant amounts of supplemental water considering the intense sunlight, dry winds and sparse rainfall typical of the region. Characterizing the interactions between turfgrass and tree species in these landscapes can aid in the identification of candidate species that consume less nutritional …

Nebline, Nov./Dec. 2008

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Make a Difference: Reduce, Reuse, Recycle
2008 Crop Year in Review
Preserve Grain Quality with Aeration Management
Estimating Corn Drydown Time
It’s Not Easy Being Green During Nebraska’s Winters
Put on an Extra Blanket (Winter Mulching)
Avoid Stacking Firewood Next to House
The Keys to a Perfect Thanksgiving Meal
$tretch Your Food Dollar During the Holiday Season
Healthy Eating: Easy as Pie—Turkey Pot Pie
Family & Community Education (FCE) Clubs: Presidents’ Notes—Bonnie’s Bits
FCE News & Events
Household Hints: Keep Kitchen and Bathroom Clean During Guest Season
Skip the “Humbug!” 10 Tips to Relieve Holiday Stress
Housecleaning Ergonomics: How to …

Nebline, October 2008

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Introducing the Nebraska 4-H Diamond Clover Program
How to Reduce Energy Cost for Grain Drying
Use Season-Long Records to Assess Pumping Plant Performance
Proper Care of Pumpkins and Gourds Means Use Beyond Halloween Decor
Fall Planting
Poinsettia
Deer Damage
Compost Excellent Tool to Correct Soil Erosion
Cleaning the Kitchen Cupboard: Toss or Save?
$tretch Your Food Dollar with “Healthy Treats” (No Tricks)
Healthy Eating: Homemade Whole Grain Croutons
Family & Community Education (FCE) Clubs: Presidents’ Notes—Bonnie’s Bits
FCE News & Events
Household Hints: Compact Fluorescent Bulbs
Protect Credit Ratings With Proper Debt Management
Make a Cornucopia from the Garden
10 …

Nebline, September 2008

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Establishing and Maintaining Lawns in Low Light
Fending Off Asian Lady Beetles
UNL Water Web Site
Landscaping for Energy
Planting Balled and Burlapped Plants
Planting Peonies
Well Abandonments
The Mothball Mishap and Other Thoughtless Ways to Misuse Pesticides
The Truth about Hedge Apples
Kids Are Back in School and So Are Head Lice
Freezing Sandwiches
Family & Community Education (FCE) Clubs: Presidents’ Notes—Bonnie’s Bits
FCE News & Events
Household Hints: Clean oven and BBQ mitts
Parenting Athletes to be Good Sports
Great Fans. Great Sports. Sportsmanship Checklist
Controlling Winter Annual Grasses in Pastures
Fall Is a Good Time to Control …