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Articles 1 - 30 of 76
Full-Text Articles in Life Sciences
A Field Guide For Grasses And Grass-Like Plants Of Idaho, Justin J. Trujillo, Eva K. Strand (Mentor)
A Field Guide For Grasses And Grass-Like Plants Of Idaho, Justin J. Trujillo, Eva K. Strand (Mentor)
Idaho Conference on Undergraduate Research
The purpose of this project is to develop a user-friendly field guide to grasses and grass-like plants in Idaho, specifically geared to those with limited background in botany. The guide will feature 60 Idaho grasses and grass-like plants, intended for K-16 educators and students, ranchers, land owners, recreationists, and nature enthusiasts, with accompanying K-12 lesson plans. In the form of both a printed book and an offline app for iPhones and Androids, the guide will include colorful images showing detailed characteristics and vegetative features of each grass, an easy-to-use dichotomous key, and information on each plant’s history, forage value, and …
Thermodynamic Analysis Of Phenylpropanoid Pathway In Arabidopsis Thanliana, Patrick J. Ioerger, Rohit Jaini, John A. Morgan
Thermodynamic Analysis Of Phenylpropanoid Pathway In Arabidopsis Thanliana, Patrick J. Ioerger, Rohit Jaini, John A. Morgan
The Summer Undergraduate Research Fellowship (SURF) Symposium
Biofuels represent a renewable alternative to traditional fossil fuels. As dependence on fossil fuels rise so does the importance of improving the production of alternative fuels. Lignin poses one obstacle in the development of such alternative fuels. Its presence strengthens cell walls and hinders degradation of polysaccharides into monosaccharides, increasing cost and time while decreasing efficiency of the process. Lignin is composed of three monolignols, each of which is produced through the Phenylpropanoid pathway; a series of chemical reactions. This work aims to determine which reactions in the pathway are least thermodynamically favorable and thus most limiting. From metabolic mapping …
You Don’T Have To Go Home But You Carrot Stay Here: Root-Knot Nematode Biological Control In Carrots, Casey R. Martin, Sahar Abdelrazek, Lori A. Hoagland
You Don’T Have To Go Home But You Carrot Stay Here: Root-Knot Nematode Biological Control In Carrots, Casey R. Martin, Sahar Abdelrazek, Lori A. Hoagland
The Summer Undergraduate Research Fellowship (SURF) Symposium
Root-knot nematodes cause tens of billions of dollars in damages annually in agricultural production. The enormous economic losses brought about by nematodes, combined with the downsides to current methods for handling them, have led to an increased focus in understanding natural plant defense mechanisms and finding alternative methods to lessen the damage done by root-knot nematodes. Endophyte biocontrol agents such as Trichoderma harzianum have shown promise in reducing nematode damage. Recent studies have demonstrated that soil management practices and plant genotype can influence endophyte community structure, but it is unclear whether such differences influence susceptibility to nematode damage. This study …
Long-Term Tillage System Impacts On Soil Erodibility, Julianne R. Chechanover, Dennis C. Flanagan
Long-Term Tillage System Impacts On Soil Erodibility, Julianne R. Chechanover, Dennis C. Flanagan
The Summer Undergraduate Research Fellowship (SURF) Symposium
Conservation tillage practices, such as no-till agriculture, have the potential of reducing the erodibility of a soil compared to conventional agricultural practices. This research sought to determine whether long-term agricultural practices affect the baseline erodibility properties of a soil. Two soils from Throckmorton-Purdue Agricultural Center in Tippecanoe County, Indiana were used during this experiment. One soil was treated with a long-term conventional tillage (fall chisel, spring disk) system and the other soil was treated with a long-term no-till system. The soils’ interrill erodibility, and rill erodibility and critical hydraulic shear stress were measured under a rainfall simulator using soil boxes …
Detecting Genomic Regions Responsible For Resistance In Arabidopsis, Valeria Cancino, Anjali Iyer-Pascuzzi, Rucha Karve
Detecting Genomic Regions Responsible For Resistance In Arabidopsis, Valeria Cancino, Anjali Iyer-Pascuzzi, Rucha Karve
The Summer Undergraduate Research Fellowship (SURF) Symposium
Ralstonia solanacearum is a soil-borne plant root colonizing pathogen and the casual agent of bacterial wilt (BW) disease. BW leads to severe yield loss in a wide variety of agricultural commodity crops, such as tomato, banana, and pepper. In this study, we look at the plant-pathogen interaction between Ralstonia solanacearum and various ecotypes of Arabidopsis thaliana with the goal of finding resistant ecotypes. To identify resistant ecotypes, seeds are first sterilized and left to soak in the dark. Then the seeds are plated on agar media, transferred to a growth chamber, and allowed to grow for 5 days. On day …
Production, Purification, And X-Ray Crystallography Of The Potra Domains Of Pstoc75, Gabriela Jordan Little
Production, Purification, And X-Ray Crystallography Of The Potra Domains Of Pstoc75, Gabriela Jordan Little
EURēCA: Exhibition of Undergraduate Research and Creative Achievement
Plastids arose via endosymbiosis when a cyanobacterium was engulfed by a primitive eukaryote. The cyanobacterium was enslaved by the eukaryote, eventually giving rise to a new organelle, termed the plastid. The transition from a free-living cyanobacterium to a cell-dependent organelle demonstrates how the chloroplast ancestor underwent many changes in its physiology and biological processes. The majority of the DNA belonging to the cyanobacterium was scavenged by the nucleus of the host cell. This led to higher fidelity of genetic duplication, due to the proofreading abilities of the DNA polymerase of the host cell. This left the cell with the problem …
Evaluating Antioxidant Activity Of Selected Plant Species Native To Cedarville, Ohio, Daniel A. Benson, Alexander P. Treide, David Woodfield, Joshua A. Sitler, Denise S. Simpson, Robert L. Paris
Evaluating Antioxidant Activity Of Selected Plant Species Native To Cedarville, Ohio, Daniel A. Benson, Alexander P. Treide, David Woodfield, Joshua A. Sitler, Denise S. Simpson, Robert L. Paris
The Research and Scholarship Symposium (2013-2019)
Over the past several decades, there has been an increase in the number of synthetic drug molecules developed and utilized to treat various conditions. Although these synthetic drugs have proven useful, there has been growing public concern regarding the potentially negative long-term effects of synthetic agents on the body. As a result, there has been an increased interest in identifying and utilizing plant extracts and purified compounds since they are perceived to be a more natural alternative to synthetic drugs. The goal of this study was to evaluate the specific antioxidant properties of alsike clover Trifolum hybridum when produced under …
An Individual-Based Model Of Chaparral Vegetation Response To Frequent Wildfire, Timothy Lucas, Dayna Mann, Reanna Dona
An Individual-Based Model Of Chaparral Vegetation Response To Frequent Wildfire, Timothy Lucas, Dayna Mann, Reanna Dona
Seaver College Research And Scholarly Achievement Symposium
In recent years, the Santa Monica Mountains (SMM) have been plagued by frequent wildfires which threaten the native chaparral species. Nonsprouting chaparral species are completely killed by a fire, but their seeds germinate in response to fire cues. Facultative sprouters both resprout after a wildfire and release seeds that germinate post-fire. This project is based on data collected since 1986 at a biological preserve adjacent to the Malibu campus of Pepperdine University with an average fire return interval of 7.5 years. We present a spatial model that simulates the growth, seed dispersal and resprouting behavior of individual shrubs that compete …
Memories, Kentucky Alfalfa Conference
Memories, Kentucky Alfalfa Conference
Kentucky Alfalfa and Stored Forage Conference
No abstract provided.
Photo Highlights Of The 35th Kentucky Alfalfa Conference, Darold J. Akridge
Photo Highlights Of The 35th Kentucky Alfalfa Conference, Darold J. Akridge
Kentucky Alfalfa and Stored Forage Conference
No abstract provided.
Farmer Panel--What Hay Quality Means To Me, Clayton Geralds, Ben Cox, John Mccoy, Dennis Wright, Minos Cox
Farmer Panel--What Hay Quality Means To Me, Clayton Geralds, Ben Cox, John Mccoy, Dennis Wright, Minos Cox
Kentucky Alfalfa and Stored Forage Conference
No abstract provided.
Hay Quality: What Is It?, Garry D. Lacefield, Don Ball
Hay Quality: What Is It?, Garry D. Lacefield, Don Ball
Kentucky Alfalfa and Stored Forage Conference
Profitable livestock production almost always requires a forage program that will supply large quantities of adequate quality, homegrown feed. A major percentage of the feed units for beef (83%) and dairy cattle (61%) come from forages. In addition, forages supply an estimated 91%, 72%, 15% and 99% of the nutrients consumed by sheep and goats, horses, swine, and wildlife, respectively.
Alfalfa And The Environment, Don Ball
Alfalfa And The Environment, Don Ball
Kentucky Alfalfa and Stored Forage Conference
We live in a society in which many people don’t understand or appreciate agriculture as much as they really should. After all, only about 2% of the population of the United States is involved in agriculture, so most people don’t know much about it. Furthermore, most don’t spend much time thinking about it. Forage crops, including alfalfa, are especially under-appreciated because forage is not consumed directly by humans (alfalfa sprouts being a minor exception).
Red Meat, Our Health And Alfalfa--Separating Scientific Fact From Opinions, Policy, Politics, And Bureaucracy, Peter Ballerstedt
Red Meat, Our Health And Alfalfa--Separating Scientific Fact From Opinions, Policy, Politics, And Bureaucracy, Peter Ballerstedt
Kentucky Alfalfa and Stored Forage Conference
The general public is becoming increasingly aware of the failure of the official nutritional policy of United States and other countries. Books like Good Calories, Bad Calories: Fats, Carbs, and the Controversial Science of Diet and Health (Taubes, 2008), Why We Get Fat and What To Do About It (Taubes, 2011) and The Big Fat Surprise: Why Butter, Meat and Cheese Belong in a Healthy Diet (Teicholz, 2014) have exposed the disconnect between nutrition science and nutrition policy, and have told the story of how we’ve come to this point in history.
Grazing Alfalfa: Real Cost Of "Fear" Of Bloat, S. Ray Smith, Kenneth H. Burdine, Jeff Lehmkuhler
Grazing Alfalfa: Real Cost Of "Fear" Of Bloat, S. Ray Smith, Kenneth H. Burdine, Jeff Lehmkuhler
Kentucky Alfalfa and Stored Forage Conference
In the Southeast, including legumes like alfalfa and clover in pastures provides many advantages. It reduces the impact of fescue toxicosis, provides free nitrogen, and improves pasture quality leading to increased animal performance. Individual animal performance is greater on grass/legume pastures compared to performance on similar monoculture grass stands. Daily gains for steers grazing clover-fescue swards is improved compared to straight tall fescue pastures (Figure 1). Improved performance is partially due to greater forage intakes. This practice is sound management even though legume bloat is a risk to livestock. If one considers the number of cattle grazing pastures containing legumes …
What's Required To Break The "Beef Per Acre" Kentucky Record, Kenneth R. Johnson
What's Required To Break The "Beef Per Acre" Kentucky Record, Kenneth R. Johnson
Kentucky Alfalfa and Stored Forage Conference
As I approach the task that Garry assigned me, I ask the question, “Do I really want to attempt to produce 1400 or more pounds of beef per acre?” An easy answer is “yes,” but more likely “no.” Most farmers I know, full or part time have all they can do now and to reach record levels of anything requires much more time and management. I am going to attempt to discuss the steps I think that will be required to reach record breaking production. Higher gains are certainly possible. We know alfalfa can produce 8 to 10 tons of …
Alfalfa Is Our Family Farming Operation, Myron Ellis
Alfalfa Is Our Family Farming Operation, Myron Ellis
Kentucky Alfalfa and Stored Forage Conference
Ellis Family Farm is a 5th generation family farm located in Harrodsburg, KY. Currently we farm 1250 acres total of which 870 acres is owned and the remainder is leased. We buy and resale between 1500-1800 head of feeder cattle per year and have 100 head of brood cows. The cattle operation feed is completely supplied by the first cutting of our 580 acres of alfalfa and alfalfa grass mix hay. From the second cutting on, we produce small square bales of alfalfa for the horse market in four states. Our normal production of square bales ranges between 75,000 and …
Kentucky Alfalfa Conference Reflections After 35 Years, Garry D. Lacefield
Kentucky Alfalfa Conference Reflections After 35 Years, Garry D. Lacefield
Kentucky Alfalfa and Stored Forage Conference
This event today marks the 35th consecutive year we have come together for a full day’s conference featuring "Alfalfa - Queen of the Forages" as the theme and focal point. Only one other state (California) in the U.S. has such an annual event.
Foreword And Recipients Of Kentucky Alfalfa Awards [2015], Garry D. Lacefield, Christi L. Forsythe
Foreword And Recipients Of Kentucky Alfalfa Awards [2015], Garry D. Lacefield, Christi L. Forsythe
Kentucky Alfalfa and Stored Forage Conference
This is the front matter of the proceedings.
Top Ten Forage Improvements: The Big Picture, Garry D. Lacefield
Top Ten Forage Improvements: The Big Picture, Garry D. Lacefield
Forage Symposium at the Kentucky Cattlemen’s Convention
This marks the 20th consecutive year we have done a Forage’s at KCA Program and I find it hard to believe the past 20 years have passed so quickly. The opportunities for forages in Kentucky were indeed great twenty years ago; however, they are much greater now than when we started this Conference.
My Top 5 Forage Improvements/Practices: Stocker, Russell C. Hackley
My Top 5 Forage Improvements/Practices: Stocker, Russell C. Hackley
Forage Symposium at the Kentucky Cattlemen’s Convention
No abstract provided.
My Top 5 Forage Improvements/Practices: Cow/Calf, Chris Pantle
My Top 5 Forage Improvements/Practices: Cow/Calf, Chris Pantle
Forage Symposium at the Kentucky Cattlemen’s Convention
No abstract provided.
My Top 5 Forage Improvements/Practices: Goats And Sheep, Jason Tower
My Top 5 Forage Improvements/Practices: Goats And Sheep, Jason Tower
Forage Symposium at the Kentucky Cattlemen’s Convention
No abstract provided.
My Top 5 Forage Improvements/Practices: A Dairy Take, Bill Payne
My Top 5 Forage Improvements/Practices: A Dairy Take, Bill Payne
Forage Symposium at the Kentucky Cattlemen’s Convention
No abstract provided.
My Top 5 Forage Improvements/Practices: Commercial Hay, Clayton Geralds
My Top 5 Forage Improvements/Practices: Commercial Hay, Clayton Geralds
Forage Symposium at the Kentucky Cattlemen’s Convention
No abstract provided.
Foreword [2015], Garry D. Lacefield, Christi L. Forsythe
Foreword [2015], Garry D. Lacefield, Christi L. Forsythe
Forage Symposium at the Kentucky Cattlemen’s Convention
No abstract provided.
Quality Seed Production And Effective Marketing Systems For Development Of Grasslands, M. Philip Rolston
Quality Seed Production And Effective Marketing Systems For Development Of Grasslands, M. Philip Rolston
IGC Proceedings (1997-2023)
Seed quality is defined as (i) maintaining genetic purity using seed certification principles (generation system; isolation; previous cropping history); (ii) achieving high levels of physical purity (especially low weed seed levels) by in field weed control and seed cleaning; (iii) achieving high levels of seed germination at harvest and maintaining germination through the seed supply chain. Seed production systems must not only produce high quality seed but also achieve economic seed yields. Seed crops have to be profitable (by being high yielding) to justify the investment of time and input costs to achieve quality. This in turn requires supporting research …
Recent Trends In Breeding Of Tropical Grass And Forage Species, J. S. Sandhu, Dinesh Kumar, Vijay Kumar Yadav, Tejveer Singh, R. P. Sah, Auji Radhakrishna
Recent Trends In Breeding Of Tropical Grass And Forage Species, J. S. Sandhu, Dinesh Kumar, Vijay Kumar Yadav, Tejveer Singh, R. P. Sah, Auji Radhakrishna
IGC Proceedings (1997-2023)
Germplasm enrichment in major tropical grasses and their characterization for emerging environmental challenges have been major focussed area in the recent past. Breeding efforts in tropical grasses are still limited to few selected species viz. Panicum spp, Cenchrus spp, Pennisetum spp and Bracharia spp and all other grasses use of land races for varietal development through selection have been major source of improvement. The pace of breeding efforts in the tropical grasses have been slowed because of many inherent characteristics viz. apomixis, poor seed set, high photo and thermo sensitivity often creating problem in designing and implementing an effective breeding …
Nitrogen Management Of Forages In Relation To Gaseous Emissions – New Approaches And Considerations, Shabtai Bittman, Derek Hunt
Nitrogen Management Of Forages In Relation To Gaseous Emissions – New Approaches And Considerations, Shabtai Bittman, Derek Hunt
IGC Proceedings (1997-2023)
Forages have a high N demand, a long growing season, and an effective root system all contributing to effective nutrient capture. However forages are restrictive in methods available for mitigating gaseous losses both as NH3 and as N2O, due to both practical and cost considerations. Strategies are needed to address the challenges of both N efficiency and N losses. Agronomic techniques in long term experiments can enhance estimates of N loss pathways and N efficiency, and demonstrate the importance of integrated multinutrient approaches. The dual manure stream concept divides manure into a thin fraction suitable as an …
Ecologically And Socially Sustainable Livestock Development In Marginal Areas, Ilse Köhler-Rollefson
Ecologically And Socially Sustainable Livestock Development In Marginal Areas, Ilse Köhler-Rollefson
IGC Proceedings (1997-2023)
“Marginal areas” are perceived as difficult and unproductive landscapes, always under the threat of drought, desertification and poverty. Yet, both dryland and high altitude marginal areas have an extraordinary output of livestock products; in the efficiency of producing human-edible protein they far surpass more fertile areas. This productivity under adverse climatic conditions rests on sophisticated strategies and social institutions developed by pastoral communities to deal with variability in the availability of resources. It depends on the use of animal genetic resources that are adapted to make best use of local vegetation and can cope with seasonal variations in availability. Livestock …