Digital Commons Network^™

Fallow Versus Wheat Cropping Of Unamendedand Manure-Amended Soils Related To Mycorrhizal Colonization, Yield, And Plant Nutrition Of Dry Bean And Sweet Corn, Brett L. Allen, Von D. Jolley, Charles W. Robbins, Larry L. Freeborn

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

Previous studies reported manure application to eroded Portneuf silt loam soil (Coarse-silty, mixed, superactive, Durinodic Xeric Haplocalcid) improved dry bean (Phaseolus vulgaris L., cv. Viva) yield to levels of topsoil. These yield increases only correlated with whole-plant zinc (Zn) concentration and soil organic matter. This might be related to enhanced arbuscular mycorrhizal (AM) colonization stimulated by manure application. A greenhouse study with dry bean suggested a relationship between manure application, increased AM colonization, and whole-plant Zn uptake, while field studies with wheat (Triticum aestivum L.) and sweet corn (Zea mays L.) did not. To clarify the apparent …

Methyl-Β-Cyclodextrin: An Alternative Carrier For Intravenous Infusion Of Palmitate During Tracer Studies In Swine (Sus Scrofa Domestica), Diane Wray-Cahen, Thomas J. Caperna, Norman C. Steele

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

Fatty acid-free albumin has been the standard carrier for intravenous infusion of fatty acids to study in vivo lipid metabolism. However, subjects can have adverse reactions to infusion of albumin. We sought an alternative to albumin as a carrier for intravenous infusion of fatty acids, using the pig as a model. Cyclodextrins are naturally occurring water-soluble molecules that can serve as carriers for lipid-soluble compounds. ¹³C-palmitate was complexed to either 20% methyl-β-cyclodextrin, 20% 2-hydroxypropyl-β-cyclodextrin, or 5% porcine albumin (isotopic purity of infusates: 99.22±0.06%). ¹³C-palmitate-albumin was infused under fed conditions and ¹³C-palmitate-methyl-β-cyclodextrin was infused under fasted and fed …

Determination Of The Nutrition Contents Of The Wild Plants Used As Vegetables In Upper Çoruh Valley, Ertan Yildirim, Ati̇lla Dursun, Meti̇n Turan

Turkish Journal of Botany

This study was undertaken in order to investigate wild plant species locally consumed as food in Upper Çoruh Valley. The plant species were collected in the late winter and spring, and their taxonomic identifications were made. The plants identified were Plantago minor L., Polygonum bistorta L., Astrodaucus orientalis L., Camelina rumelica Boehm., Lathyrus tuberosus L., Galium rotundifolium L., Chenopodium album L. and Chenopodium album L. Analyses were carried out to evaluate the nutritional values of the plant parts. The highest dry matter, ascorbic acid, nitrogen, protein, phosphorus and potassium contents were determined to be 20.87 g.100 g^{-1} , 161.25 mg.100 …

The Aspergillus Nidulans Snt Genes Are Required For The Regulation Of Septum Formation And Cell Cycle Checkpoints, Peter R. Kraus, Steven D. Harris

Department of Plant Pathology: Faculty Publications

In Aspergillus nidulans, germinating conidia undergo multiple rounds of nuclear division before forming a septum. Previous genetic results suggest that the ability to separate nuclear division and septum formation depends upon a threshold level of activity of the cyclin-dependent kinase NIMXcdk1. Mutations in nimX and nimT, the gene encoding the NIMXcdk1-activating phosphatase, have revealed that Tyr-15 phosphorylation is important for determining the timing of the formation of the first septum. Here, we describe a screen for suppressors of nimT23 (snt), designed to identify additional components of the pathway regulating septum formation. We show that a subset …

Crop Potassium Nutrition – Implications For Fertilizer Recommendations, Achim R. Dobermann

Department of Agronomy and Horticulture: Faculty Publications

During the past 35 years, average corn yields in the North Central Region (NCR) have increased at a rate of 1.7 bu/acre per year, mainly due to the adoption of improved crop management technologies and genetic improvement of corn hybrids. Fertilizer K rates used on corn are typically within a range of 0 to 110 lb K₂O/acre, but average usage varies widely among states. Commercial fertilizer use rose sharply in the 1960s and 1970s, but corn yield increases since 1980 were achieved with stagnating fertilizer-N use and declining rates of P and K. Signs of emerging K deficiencies …

Light-Saturated Co2 Assimilation Rates Of Corn And Velvetleaf In Response To Leaf Nitrogen And Development Stage, John L. Lindquist

Department of Agronomy and Horticulture: Faculty Publications

Single-leaf CO₂ assimilation rate under saturating light (C_A) varies as a function of leaf nitrogen content per unit leaf area (N_L). Measured C_A for many crop species also declines with developmental stage. Because these relationships may have strong implications for crop–weed competition, a field experiment was conducted to quantify corn and velvetleaf C_A as influenced by leaf N_L and stage of development. Crop and weed C_A were measured on the most recent fully expanded leaves of plants grown in four nitrogen (N) application treatments. Both corn and velvetleaf C_A increased …

Genomic Regions That Underlie Soybean Seed Isoflavone Content, K. Meksem, V. N. Njiti, W. J. Banz, M. J. Iqbal, My. M. Kassem, David L. Hyten, J. Yuang, T. A. Winters, D. A. Lightfoot

Department of Agronomy and Horticulture: Faculty Publications

Soy products contain isoflavones (genistein, daidzein, and glycitein)that display biological effects when ingested by humans and animals, these effects are species, dose and age dependent. Therefore, the content and quality of isoflavones in soybeans is a key to their biological effect. Our objective was to identify loci that underlie isoflavone content in soybean seeds. The study involved 100 recombinant inbred lines (RIL)fr om the cross of ‘Essex’ by ‘Forrest,’ two cultivars that contrast for isoflavone content. Isoflavone content of seeds fromeach RIL was determined by high performance liquid chromatography (HPLC). The distribution of isoflavone content was continuous and unimodal. The …

Measures Of Denitrification In Selected South Dakota Semi-Permanent Prairie Pothole Wetlands, Beverly S. Klein

Electronic Theses and Dissertations

Wetlands are an integral part of agricultural systems in the prairie pothole regions of the North Central United States and Canadian Provinces. Little research has been done on denitrification in prairie potholes, and a better understanding of their denitrifying capability could aide in optimizing management practices near pothole areas. Most probable number (MPN) and denitrifying enzyme activity (DEA or Phase I) assays were conducted. Most probable number (MPN) measures were used to give an estimate of dissimilatory nitrate reduction to ammonia (DNRA) and denitrifying populations present in the wetlands. This study involved 3 selected semi-permanent prairie pothole wetlands near Madison, …

'Earlibrite' Strawberry, C. K. Chandler, D. E. Legard, David Dunigan, T. E. Crocker, C. A. Sims

Department of Plant Pathology: Faculty Publications

There is a need in west central Florida and other winter strawberry (Fragaria xananassa Duchesne) production areas for an early ripening cultivar to replace or be an alternative to 'Sweetcharlie' (Chandleretal., 1997a). 'Sweet Charlie' has benefitted the Florida strawberry industry through its relatively high production of fruit early in the season, when market prices are generally high. But the average fruit size is small, and the texture of its fruit is often soft, making shipment and shelf life of 'Sweet Charlie' problematic. 'Earlibrite' strawberry has produced high early-season (December through February) yields of large, flavorful fruit at the Univ. …

Nebline, December 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Planting Your Small Farm's Future
Winter Care of Houseplants
Houseplant Insect Problems
Ways to Attract Birds
Air Layering Tropical Plants
Amaryllis Care
Pheromone Traps Help Control Pests
“Green” Gifts
Sneaky Rodents can be Tough to Catch
Give a Gift of Knowledge
Winter Activities for Kids
Fescue Endophyte Toxicity Found in the County
Discussion on Crop Biotechnology
Conservation Tree Program — New Species
To Prune is to Care
Nebraska Nuts Add Holiday Flavor
Deforestation in United States
“Do You Know What You Are Eating?”
It’s Prime Time for Prime Rib
Handling Holiday Leftovers When Dining Out
Family & Community Education (FCE): …

‘Strawberry Festival’ Strawberry, C. K. Chandler, D. E. Legard, David Dunigan, T. E. Crocker, C. A. Sims

Department of Plant Pathology: Faculty Publications

Most of the strawberries (Fragaria xananassa Duchesne) produced in Florida are shipped fresh to locations throughout the eastern United States and Canada (Florida Agricultural Statistics [www.nass.usda.gov/ fl]). Therefore, Florida growers need cultivars that produce fruit that are attractive and flavorful, and maintain these qualities during and after long-distance shipment. 'Strawberry Festival' strawberry has produced commercially acceptable yields of firm, attractive, and flavorful fruit in trials at the Univ. of Florida's Gulf Coast Research and Education Center in Dover (GCREC-Dover) and in two commercial fields in west central Florida. It is recommended for trial in areas where strawberries are grown …

Forage News [2000-11], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Statewide Grazing Conference Set for Bowling Green
• Fall Grazing School
• Three-Cornered Alfalfa Hopper
• Funding Source for Livestock/Forage Development
• Forages at KCA
• Forage Testing
• Forage Testing Has Economic Value
• Upcoming Events

Nebline, November 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Family Meals Nourish Body and Soul
Holiday Safety for Your Home
Houseplant Problems
Gifts for The Gardener
Winter Protection for Roses
Invisible Bites and Itches
America Recycles Day: Wednesday, November 15, 2000
Voracious Voles
Bugs in Your Firewood?
Grain Stubble Rental Rates
Assessing Alternative Ag Opportunities
Irrigation Well Data Available on Internet
Biosolids Cuts Production Costs and Improves Yields
Planting Designs With Wildlife in Mind
Sweet Dreams Little Tractor
Space Heater Cautions
Eat More Fruits for Good Health
Healthy Eating: Turkey Crescents
Serve Food Safely at Holiday or Party Buffets
Focus on Food
Family & Community Education (FCE): Clarice's Column …

Profiting From Adversity - Meeting The Challenge Of Salinity Through New Industry Development, Andrew Quinn, Tamara Law, Peter Rowe

Natural resources published reports

Salinity in the Wheatbelt of Western Australia is one of the most significant challenges facing the State's agricultural sector.

Efforts to manage the increasing effect of salt influenced and threatened farming land requires not only the implementation of new farming systems, but a new way of thinking and attitude to production more in tune with environmental and technological limitations.

While past environment lobby pressures have significantly focused on other production activities such as mining and forestry, the future is likely to see increased community interest in agricultural production systems.

Consumers World wide are becoming more environmentally sensitive, with global media …

Low Recharge Farming Systems. Case Studies On The South Coast, Arjen Ryder, Jamie Bowyer, Gerry Skinner, Clare Mccarron

Natural resources published reports

This booklet is intended as a guide to assist land managers to design or select low recharge farming systems. Options that increase water use are described with benefits and issues for each option.

Case studies describe the experiences of landholders who have had a go at establishing and managing such systems. Examples are included from different rainfall zones. The systems mentioned in this manual are only a guide.

Case studies describe the experiences of landholders who have hada go at establishing and managing such systems. Examples are included from different rainfall zones. The systems mentioned in this manual are only …

Nebline, October 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Two Kinds of People: Character Counts!
Viburnums in the Landscape
Storing Vegetables
Garden Cleanup
What is the Best Termite Control: Baits or Barriers?
Woolly Bears
Watch for Fall Invaders
Head Lice Information in Spanish!
Fall Is a Good Time to Control Problem Weeds
Making Financial Plans Now Will Help the Future of Farms and Ranches
ARPA Bill Increases Crop Insurance Subsidies
Making the “Right” Management Choices
Bait Stations for Rats and Mice
Plant Seeds Not Seedlings
Large Round Bale Storage
Fall Preparations – Asparagus, Cucurbits
Poultry Pests
Get Active! Pyramid
Healthy Eating: Apple Pizza
Healthy Halloween Treats
Kids in the …

Proceedings Of Carrot Conference Australia, Perth, Western Australia, Figaro Natoli, Sam Calameri, Albert Grubelich, Allan Mckay, Elaine Davison, David Ellement

Conference papers and presentations

No abstract provided.

Nebline, September 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

National 4-H Week: Volunteers Make A Difference
Growing Hardy Bulbs
Fall Storage of Tender Bulbs, Corms, and Tubers
Drying Gourds
Dealing with Yellowjackets
Is Your Home a Hide-Away for Pests?
Is There a Cancer Epidemic in the United States?
Be Prepared for Head Lice
Prepare Grain Bins and
Equipment Before Harvest
Sobering Safety Statistics
Could Carbon be Your Next Crop? USDA publication examines the issue
Are you Looking for the Latest Wheat Variety Test Results?
U.S. Drought Monitor
The Contingency Plan and the Exit Strategy
Benefits of Acreage Windbreaks
African Violet Growing Tips
Trees from Seeds
Teens Gain Confidence in …

Tiller Recruitment Patterns And Biennial Tiller Production In Prairie Sandreed, J. R. Hendrickson, Lowell E. Moser, Patrick E. Reece

Department of Agronomy and Horticulture: Faculty Publications

Tiller recruitment is an essential process for ensuring the perenniality of grasses. The timing and extent of tiller recruitment and the role of biennial tillers must be documented for key range species. Prairie sandreed [Calamovilfa longifolia (Hook) Scribn.] is an important grass in the Nebraska Sandhills for both ecological functioning and as a forage. The objective of this study was to document tiller recruitment patterns and the occurrence and contribution of current year and biennial tillers to biomass production in prairie sandreed at 2 locations in Nebraska. Tiller recruitment was monitored at 2-week periods throughout the growing season during …

Nebline, August 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Handling Food Safely at Home
Controlling Undesirable Perennial Grasses in the Lawn
Purple Loosestrife Noxious Weed
Storing Extra Seeds
Your Hummingbird Feeders Should Be Up and Running
Tips for Non-toxic Cricket and Spider Control
West Nile Virus and Rabbit Calcivirus Disease Alerts
New Website Help for Wildlife Damage Problems
Be Wary of Nitrate, Prussic Acid Poisoning This Summer
Deadline Approaches to Terminate Farm Leases
Fuel Price Adds $10 Per Acre to Irrigation Cost
Protect Hearing on the Farm
The Financial Plan
Marketing Strategies
Avoid Foliar Diseases on Tomatoes
Blight Affects Junipers, Windbreaks
Drinking Water Questions and Answers
200 Youth Explore …

Pseudomonas Syringae Hrp Type Iii Secretion System And Effector Proteins, Alan Collmer, Jorge L. Badel, Amy O. Charkowski, Wen-Ling Deng, Derrick E. Fouts, Adela R. Ramos, Amos H. Rehm, Deborah M. Anderson, Olaf Schneewind, Karin V. Van Dijk, James R. Alfano

Center for Plant Science Innovation: Faculty Publications

Pseudomonas syringae is a member of an important group of Gram-negative bacterial pathogens of plants and animals that depend on a type III secretion system to inject virulence effector proteins into host cells. In P. syringae, hrpyhrc genes encode the Hrp (type III secretion) system, and avirulence (avr) and Hrpdependent outer protein (hop) genes encode effector proteins. The hrpyhrc genes of P. syringae pv syringae 61, P. syringae pv syringae B728a, and P. syringae pv tomato DC3000 are flanked by an exchangeable effector locus and …

B.R. Wells Rice Research Studies 1999, R. J. Norman, C. A. Beyrouty

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Center For Grassland Studies Newsletter, Summer 2000, Volume 6, No. 3

Center for Grassland Studies: Newsletters

Contents:

Ergot: An Endemic Disease of Grasses in the Great Plains by John Watkins, Department of Plant Pathology, University of Nebraska-Lincoln

Compensatory Growth and Slaughter Breakevens of Yearling Cattle by D. J. Jordon, Terry Klopfenstein, Todd Milton and Rob Cooper Department of Animal Science, University of Nebraska-Lincoln

Amazing Graze

New Trefoils Give Breeders More Options CGS Facilitates Regional Collaboration

CGS Citizens Advisory Council Holds 5th Summer Meeting/Tour Prussic Acid and Nitrate Poisoning

Nebline, July 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

4-H & County Fair = Family Time
All America Rose Selections, All Time Classics
Vegetable Gardening in The Fall
Lawn and Garden Water Check List
Watch for Squash Vine Borer
EPA Curbs Dursban Uses
Money Saving Techniques to Help Save the Environment
Be Good to Your Worms
Misplaced Wildlife Become Problems in Urban Areas
Utilizing Drought-Damaged Corn
Noxious Weed Number 7
The Operations Plan
Summer Care Yields Fall Harvest
Farmers’ Markets on the Rise (Part 2)
Fertilizing Roses
WIC Works Wonders!!
Healthy Eating: Homemade Whole Wheat Croutons
Make It A S*U*P*E*R Salad Summer!
Focus on Food
Family & Community Education …

Bulletin 4418 - Nebru Focus Catchment Report, Agriculture Western Australia

Bulletins 4000 -

Nehru Focus Catchment is located in the upper reaches of the Arrowsmith Catchment. It is roughly bounded by Sunset Road in the north, the north-south Kadathinni Hills to the east, the Three Springs - Eneabba Road to the south and Reed Road in the west. It changes in elevation from 372 metres Australian Height Datum (AHD) at roughly the intersection of Nehru Rd the Kadathinni Hills to the east and 220 metres AHD near the outlet of the catchment into the Arrowsmith River.

The total area of the catchment is just over 7,400 hectares.

One of the prime areas of …

Reversal Of Rice Yield Decline In A Long-Term Continuous Cropping Experiment, Achim Dobermann, David Dawe, Reimund P. Roetter, Kenneth G. Cassman

Department of Agronomy and Horticulture: Faculty Publications

In a long-term continuous cropping experiment at Los Baños, Philippines, three rice (Oryza sativa L.) crops were grown each year with the goals of maximum annual grain production and high N use efficiency. Our objective was to identify the factors responsible for the restoration of yields occurring after 1991. From 1968 to 1991, grain yields declined at an annual rate of 1.4 to 2.0%. From 1991 to 1995, dry season (DS) yields in the highest N treatment increased to within 80 to 100% of the simulated yield potential; yields in the unfertilized control did not increase. Increased solar radiation, …

Pulse And Canola Frost Identification:The Back Pocket Guide, Craig White

Bulletins 4000 -

This field guide will help you identify the common symptoms of frost damage in pulse and canola crops. It also contains pictures of other plant symptoms often confused with frost damage in these crops.

Frost damage reduces crop yield and grain quality. Early identification of symptoms allows timely crop salvage decisions to be made.

Inspect pulse and canola crops between bud formation and during pod growth if right air temperature (recorded 1.2 m above ground) falls below 2 degrees celsius and there was a frost.

Check low lying, light coloured soil types and known frost prone areas first. Then check …

Commercial Irrigation And Nutrition Practices For Strawberries In Western Australia, D. Phillips, D. Gatter, T. Calder, D. Pitman

Horticulture research reports

Irrigation practices employed by five commercial strawberry growers on sandy soils of the Swan Coastal Plain near Perth Western Australia were monitored for two consecutive seasons, 1995 and 1996 during the Spring production period.

Nutritional practices for the same grower group plus one Albany grower were monitored by plant, soil and sap analysis at 14 day intervals throughout the 1996 season.

Irrigation records showed that market quality strawberries could be produced at this time of year (August to December in Perth) on soils with very poor water retention properties with an average crop factor(E Pan) for the season of 0.7 …

Nebline, June 2000

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Biosolids: A Valuable Resource Benefits Lancaster County Farmers and Taxpayers
Propagation of Shrubs from Softwood Cuttings
Blue Flowers for the Garden
Think About Apple Maggot Control Now
To DEET or not To DEET
Extension Head Lice Videotape Wins National Award!
I’ve Got GOPHERS in My Garden!
Using Summer Annual Forage Grasses to Stretch Pastures in a Dry Year
SNAP Aiming for Late Summer Start Date
Hog Prices
The Marketing Plan
Control Weeds and Woody Plants
Farmers’ Markets on the Rise in Lincoln
Pine Wilt Disease Deadly to Pines
Soyfoods - A Serving a Day......
Healthy Eating
Focus on Food
What …

Efficacy, Phytotoxicity, And Cover Crop Response Of Herbicide Combinations In Dark Fire Cured Tobacco, Tracy Kelley

Masters Theses & Specialist Projects

Field studies were established during the summer of 1999 at the Agricultural Research and Education Complex of Western Kentucky University to evaluate efficacy, phytotoxicity, and cover crop response of herbicide combinations in dark fire cured tobacco. A randomized complete block design was used with nine treatments replicated three times. Hydroponic tobacco transplants (c.v. 'TND950') were established on May 20,1999 in a conventionally tilled system on a Pembroke silt loam (Mollic Palleudalf) with a pH of 5.8 and an organic matter content of 1.2%. The transplants were established at a population of approximately 10,278 plants/ha. Herbicide treatments were applied on May …