Digital Commons Network^™

Pastures For Goats And Sheep, Greg Brann

Kentucky Grazing Conference

Pasture for sheep is not that different than that for cattle but pasture for goats is very different. Sheep are grazers like cattle whereas goats are browsers like deer. Even though grass and clover are not a goats preference if all of the forage present is grass and clover goats will eat it. Due to goats and sheep being more prey animals than cattle they don’t like to wade off into tall vegetation, also it takes more energy for them to move through tall growth. Many plants that we traditionally consider weeds become desirable forbs when goats or sheep are …

(How I Think About) Kentucky's Pastures: One Of Kentucky's Untapped Resources, Jimmy C. Henning

Kentucky Grazing Conference

One of the privileges of old(er) age is the prerogative to take liberties with assigned tasks. At the risk of confusing producers and offending more scientifically-current forage scientists, the topic of pasture as an untapped resource presented an opportunity to address task from an unexpected angle. Certainly, Kentucky’s pastures are a resource with untapped potential. But the idea that their value as a resource depends on how we think about them is one worth pursuing.

Sorghum Mutant Rg Displays Antithetic Leaf Shoot Lignin Accumulation Resulting In Improved Stem Saccharification Properties, Carloalberto Petti, Anne E. Harman-Ware, Mizuki Tateno, Rekha Kushwaha, Andrew Shearer, A. Bruce Downie, Mark Crocker, Seth Debolt

Horticulture Faculty Publications

BACKGROUND: Improving saccharification efficiency in bioenergy crop species remains an important challenge. Here, we report the characterization of a Sorghum (Sorghum bicolor L.) mutant, named REDforGREEN (RG), as a bioenergy feedstock.

RESULTS: It was found that RG displayed increased accumulation of lignin in leaves and depletion in the stems, antithetic to the trend observed in wild type. Consistent with these measurements, the RG leaf tissue displayed reduced saccharification efficiency whereas the stem saccharification efficiency increased relative to wild type. Reduced lignin was linked to improved saccharification in RG stems, but a chemical shift to greater S:G ratios in RG stem …

Snp Discovery In Quinoa, Nathan Coles, Dr. Craig E. Coleman

Journal of Undergraduate Research

Quinoa (Chenopodium quinoa, Willd) is an allotetraploid plant species native to the Andean highland regions from Colombia to Argentina. Quinoa has traditionally been and still is an important staple grain of various Andean communities, especially those in the rural and impoverished regions of Peru and Bolivia. Quinoa is an excellent source of protein and vitamins to these communities, specifically because the highland Andes are not well-suited for the cultivation or production of temperate crops or large livestock. Additionally, quinoa is a gluten-free grain and can be used as a wheat alternative for those with celiacs disease. Quinoa has been embraced …

Growing South Dakota (Fall 2013), College Of Agriculture &. Biological Sciences

Growing South Dakota (Publication of the College of Agriculture, Food and Environmental Sciences)

[Page] 2 Crop Watchers: Plant Science Department Research Efforts Strive To Enhance Farming Practices
[Page] 5 Profiles In Leadership: David Wright; Collegiate Leadership Matters
[Page] 6 Fall Collegiate News
[Page] 8 Opportunities To Explore: College’s Summer Camps Help Spark Career Interests
[Page] 10 Collaborative Campaign: Sales Of Cull Cows Helping Fund New SDSU Cow-Calf Facility
[Page] 12 Notable
[Page] 13 A Message From The SDSU Foundation

Nebline, October 2013

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Volunteering for 4-H is Rewarding and Fun, While Benefiting Youth

Farm Views

Urban Agriculture

Food & Fitness

Home & Family Living

Horticulture

Environmental Focus

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

Forage News [2013-10], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• 14th Kentucky Grazing Conference - October 10
• Kentuckians attend IGC
• Clayton Geralds elected to National Hay Association Board
• NAFA's 2013 Alfalfa Intensive Training Seminar (AITS) - Register Today!
• Prussic Acid Poisoning and Frost
• AFGC to meet in Memphis
• New Research Leader, Forage-Animal Production Research Unit, Lexington, Kentucky Announced
• NRCS Technical Service Provider Program
• Historic Agricultural Data Now Online
• Mobile App Translates Per-Bale to Per-Ton Price

The Role Of Soil Microorganisms In The Resistance Of Giant Ragweed, Horseweed, And Common Lambsquarters To Glyphosate, Jessica Renee Schafer-Bugg

Open Access Dissertations

Continuous glyphosate use has contributed to an increasing number of problematic glyphosate-resistant (GR) weeds. The mechanism of resistance in many GR weeds is poorly understood, in part, due to a poor understanding of how exactly glyphosate kills a plant. In previous research, the efficacy of glyphosate was demonstrated to be strongly influenced by root invading soil-borne microorganisms. However, this interaction among plants, glyphosate, and soil microorganisms has only been studied in a number of crop plants, but not in weed species. This is surprising since the soil biotic environment has a strong impact on the activity of this important herbicide. …

Management Of Potato Leafhopper And Maple Spider Mite On Nursery Grown Maples, Julia Prado Beltran

Open Access Dissertations

Potato leafhopper Empoasca fabae (Harris) (Homoptera: Cicadellidae) and maple spider mite Oligonychus aceris (Shimer) (Acarina: Tetranychidae) are important pests of maple trees. Investigations determined how insecticide use and fertilization impacted the abundance of E. fabae and O. aceris on `Red Sunset' red maple and `Autumn Blaze' Freeman maples. Bifenthrin applications directed against leafhoppers reduced damage to both cultivars, but increased O. aceris on Autumn Blaze. Using a threshold of one leafhopper per branch to trigger pesticide applications protected Red Sunset maples from leafhopper injury. It also prevented outbreaks of O. aceris on Autumn Blaze because few trees reached this density. …

Pasture Condition Guide For The Kimberley, Kathryn Ryan, Elizabeth Tierney, Paul Novelly, Robert Mccartney

Bulletins 4000 -

This interactive guide has been produced as a tool for assessing pasture condition over a range of pasture types in the Kimberley. A pasture type is a distinctive mix of plant species, soil type and landscape position. For example, the Mitchell Grass Alluvial Plain Pasture type is a mixture of Mitchell grasses and other species occurring on black soil alluvial plains. Pasture condition is an important factor affecting the potential of the rangelands for animal production and is a useful indicator for the sustainability of production.

Wildflowers & Other Herbaceous Plants Of Utah Rangelands, Mindy Pratt, Chad Reid, Roger Banner, James Bowns

All Current Publications

No abstract provided.

Analysis Of The Seed Storage Proteins Of Pearl Millet, Christian Ricks, Dr. Craig Coleman

Journal of Undergraduate Research

Over half of the protein consumed worldwide comes from seeds. Of these harvested crops, the cereal crops such as corn, wheat, and rice are the most important with over 2 billion tons harvested annually. Although the world relies on these cereals, they are low in protein content, and some important species like maize lack essential amino acids. For many years researchers have studied the seed storage proteins of these plants to better understand the synthesis and structures of these proteins which have such a huge impact on the nutritional and processing properties of these crops.

Characterization Of A Cdna Encoding Β-Amyrin Synthase Involved In Saponin Biosyntheses In Chenopodium Quinoa, Derrick J. Reynolds, Dr. P. Jeff Maughan

Journal of Undergraduate Research

Quinoa (Chenopodium quinoa Willd) is an important crop for subsistence farmers in the Altiplano (high plains) of Peru, Bolivia, and Argentina. Quinoa has the potential to be an effective crop for many temperate and highland-tropical regions due to its ability to thrive in drought, saline and high-altitude conditions. The nutritional value of quinoa has been well documented. Several analyses have confirmed that quinoa grain has an excellent balance of carbohydrates, lipids, and proteins and provides an ideal balance of essential amino acids for human nutrition.1 Quinoa grain also has a seed coating consisting of various saponins. Saponins are waxy, soap-like …

Economic Impact Assessment Of Sorghum, Millet And Other Grains Crsp: Sorghum And Millet Germplasm Development Research, Timothy J. Dalton, Yacob A. Zereyesus

INTSORMIL Scientific Publications

As a result of the offsetting effect of a rise in productivity and decline in harvested area, the world sorghum production (tonnes) has been on a horizontal trend. The combined effect of a decline in area harvested and a rise in yield productivity have resulted in an overall increase in world millet production (tonnes) trend.

During the last three decades, significant numbers of breeding lines, parental stocks, germplasm and cultivars have been released through INTSORMIL/host countries collaboration around the world. Some of the remarkable breeding success stories include the release of the first hybrid sorghum Hageen Dura (HD-1) and Striga …

Biology And Control Of Common Purslane (Portulaca Oleracea L.), Christopher A. Proctor

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

Common purslane (Portulaca oleracea L.) is a summer annual with wide geographic and environmental distribution. Purslane is typically regarded as a weed in North America, but it is consumed as a vegetable in many parts of the world. One of the characteristics that make purslane difficult to control as a weed is its ability to vegetatively reproduce. Severed sections of purslane stem containing a node will produce adventitious roots from the cut end of the stem. Isoxaben and simazine were the only two effective preemergence herbicides for controlling purslane in our studies when applied at maximum or one-half maximum …

Identification Of Proteins For Salt Tolerance Using A Comparative Proteomics Analysis Of Tomato Accessions With Contrasting Salt Tolerance, Peter Nveawiah-Yoho, Jing Zhou, Marsha Palmer, Roger Sauve, Suping Zhou, Kevin J. Howe, Tara Fish, Theodore W. Thannhauser

Agricultural and Environmental Sciences Faculty Research

Tomato (Solanum lycopersicum) has a wide variety of genotypes differing in their responses to salinity. This study was performed to identify salt-induced changes in proteomes that are distinguishable among tomatoes with contrasting salt tolerance. Tomato accessions [LA4133 (a salt-tolerant cherry tomato accession) and ‘Walter’ LA3465 (a salt-susceptible accession)] were subjected to salt treatment (200 mm NaCl) in hydroponic culture. Salt-induced changes in the root proteomes of each tomato accession were identified using the isobaric tags for relative and absolute quantitation (iTRAQ) method. In LA4133, 178 proteins showed significant differences between salt-treated and non-treated control root tissues (P ≤ 0.05); 169 …

Report Card On Sustainable Natural Resource Use In Agriculture, Robert Summers, David Weaver

All other publications

Condition and trend Nutrients, such as phosphorus (P), are essential for profitable agriculture in the south-west of WA; however, excess P – more than is required for optimal production – is stored in many agricultural soils. On average, pasture soils and arable soils contain 1.3 times and 1.6 times respectively, as much P as is required for optimal production. Production in P-enriched soils is more likely to be constrained by soil acidity (50–60% of pasture and arable soils), potassium (K) (50% of pasture soils and less than 10% of arable soils), and sulphur (S) (30% of pasture soils). Management implications …

Nebline, September 2013

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Community Gardens are Growing: UNL Extension in Involved With Several in Lincoln

Farm Views

Urban Agriculture

Food & Fitness

Home & Family Living

Horticulture

Environmental Focus

4-H & Youth

Community Focus

Extension Calendar

Nutrition Education Program

Family and Community Education (FCE) Clubs

and other extension news and events

Summaries Of Arkansas Cotton Research 2012, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

The Benefits Of Tannin-Containing Forages, Jennifer W. Macadam, Joe Brummer, Anowarul Islam, Glenn Shewmaker

All Current Publications

This fact sheet describes tannins, a group of chemical compounds produced by a number of broadleaf forage plants, that can bind proteins.

Identification Of Genes Related To Saponin Synthesis In Chenopodium Quinoa, Chris Nye, Dr. Jeff Maughan

Journal of Undergraduate Research

Chenopodium quinoa, commonly known as quinoa, is a vital crop to the subsistence farmers of the Altiplano region of South America. Quinoa has several unique characteristics which contribute to its ability to grow in a variety of harsh conditions found in the high altitudes and heat of South America. Quinoa has high drought tolerance, salt tolerance, as well as a natural resistance to birds and other pests. This protection comes from a coating of a wax-like substance, called saponin, found on the surface of quinoa seeds (Ward, 2001).

Project Sun Bear Nutrition, Alicia Anderson

Journal of Undergraduate Research

Sun bears (Helarctos malayanus) are a critically endangered species. In this study, we will test stable isotope levels of D/H, 18O/16O, and 34S/32S that are assimilated in sun bear hair, feces, and urine to determine if consumption of mealworms, the larval stage of Tenebrio molitor, or house crickets, Achetus domesticus, can be differentiated isotopically by measuring sulfur, oxygen, and hydrogen isotopes in the bear’s substrates. We started by collecting food and hair samples from the different bears in the study in order to establish a baseline isotope ratio that we can compare with our future studies. In order to acquire …

Saponin Microarray, Jimena B. Alvarez, Dr. P. Jeff Maughan

Journal of Undergraduate Research

Quinoa (Chenopodium quinoa Willd) is an important crop originally from the Andes of South America. Quinoa grows well in high altitude and high saline conditions, for which it is used as a substantial food source by the farmers of the Altiplano (high plains) in Peru, Bolivia, and Ecuador. Quinoa has great nutritional value, as its seeds contain high quality protein in vast amounts and other nutrients such as carbohydrates, lipids, and minerals1. However, quinoa has a seed coat with high levels of saponin that limits its nutritional uptake in humans. In addition, saponins are bitter-tasting compounds, thus making quinoa unpalatable. …

Dirigent Domain-Containing Protein Is Part Of The Machinery Required For Formation Of The Lignin-Based Casparian Strip In The Root, Prashant S. Hosmani, Takehiro Kamiya, John Danku, Sadaf Naseer, Niko Geldner, Mary Lou Guerinot, David Salt

Dartmouth Scholarship

The endodermis acts as a "second skin" in plant roots by providing the cellular control necessary for the selective entry of water and solutes into the vascular system. To enable such control, Casparian strips span the cell wall of adjacent endodermal cells to form a tight junction that blocks extracellular diffusion across the endodermis. This junction is composed of lignin that is polymerized by oxidative coupling of monolignols through the action of a NADPH oxidase and peroxidases. Casparian strip domain proteins (CASPs) correctly position this biosynthetic machinery by forming a protein scaffold in the plasma membrane at the site where …

Nucleic Acid Analysis Of Black Dot Infected Russet Norkotah Potato As Influenced By Environmental Potassium, Mason Kearns, Dr. Brad Geary

Journal of Undergraduate Research

The purpose of our project was first to apply polymerase chain reaction (PCR) technology in quantifying the infection levels of a disease in potato, and also to determine the result of varying potassium nutrition on fungal infection levels. The method currently used to assay infection is the root colonization assay (RCA) which produces less accurate results than PCR quantification. We hypothesized that a Potassium concentration of 80mg/L would be most beneficial for resisting the pathogen. The project began in January 2009, finished in May 2009 and was presented at the 2009 annual American Phytopathological Society meeting in Portland Oregon in …

Effects Of Iron Fertilization On Potato Yield Parameters, Joshua Buck, Dr. Bryan Hopkins

Journal of Undergraduate Research

As world population increases the demand on agriculture to produce a sufficient amount of food has dramatically increased. However, agricultural lands in the US and worldwide are quickly disappearing to further urban development. Therefore it is essential that agricultural practices are reviewed and improved to insure a maximum yield from minimum resources.

Traversing Swanton Road, 13th Ed., James A. West

Academic, Government & Associated Organizational Research Resources

Situated at the northwest end of Santa Cruz County and occupying circa 30 square miles of sharply contrasted terrain, the Scott Creek Watershed concentrates within its geomorphological boundaries, at least 10-12% of California's flora, both native and introduced. Paradoxically, the use/abuse that the watershed has sustained over the past 140+ years, has not necessarily diminished the biodiversity and perhaps parallels the naturally disruptive but biologically energizing processes (fire, flooding, landslides and erosion), which have also been historically documented for the area for +60 years. This is an early edition of an extensive document by James A. West. Please visit the …

Survey Of Mycorrhizal Colonization In Native, Open-Pollinated And Introduced, Hybrid Maize In Villages Of Chiquimula, Guatemala, Jessica Hess, Dr. Von D. Jolley

Journal of Undergraduate Research

Mycorrhizae is a symbiotic association between certain species of soil fungi and the root systems of many land plants. Most economically important crops form this association. By colonizing plant roots, mycorrhizal fungi receive a carbon supply from photosynthesis in plant tissues. The plant, by reason of the fine, extracellular, hyphal network of the fungi, is lent a greatly improved access to soil nutrients (especially phosphorus), improves its water relations, and may receive some resistance to soil-borne diseases. Some scientists assert that optimal management of mycorrhizae is an essential part of sustainable agricultural systems (1).

Modified Á-Zeins Containing Lysine Inserts Will Interact With Ã-Zeins To Form Stable Protein Bodies In Transgenic Tobacco Endosperm, James Bird, Dr. Craig E. Coleman

Journal of Undergraduate Research

Maize is one of the most abundantly produced grains on earth and is widely used in human and livestock diets. 90% of maize protein is found in the endosperm portion of the seed in the form of small spherical aggregates called protein bodies. These protein bodies consist of four structurally distinct alcohol soluble proteins called á-, â-, ã-, and ä-zeins.1 Initial stages of protein body formation involve â- and ãzeins forming spherical accretions which later enlarge by the accumulation of á-zeins inside the â- and ãzein spheres.2 á-Zeins alone constitute 70% of the protein body and therefore make up a …

Multifactorial Analysis Of Mortality Of Soybean Cyst Nematode (Heterodera Glycines Ichinohe) Populations In Soybean And In Soybean Fields Annually Rotated To Corn In Nebraska, Oscar Perez-Hernandez

Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research

The soybean cyst nematode (SCN; Heterodera glycines Ichinohe) is the most economically important pathogen of soybean in the U.S. The effect of annual corn rotation, soil properties, weather, and agronomic factors on SCN population densities was quantified in 45 fields in Nebraska over three years. SCN population densities (eggs/100 cm³ of soil) in each field were determined before (Pi) and after (Pf) annual corn rotation. Average SCN population density reduction was 50.62%. Multivariate analysis was used to describe the relationship of soil texture (% of sand, silt, and clay), Pi, and Pf. Two principal components explained 92% of the …