Digital Commons Network^™

Forage News [2016-11], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• The New Face of Forage News
• Changes to FSA Acreage Reporting Dates for 2017
• Heart of America Grazing Conference to be held in Quincy, IL January 18-19
• Forage News Quote of the Month: "Wasted Hay Means Wasted Money"
• Overseeding Small Grains into Pastures or Hayfields
• AFGC Annual Meeting - January 22-24, 2017
• Somerset KY Hosts Successful Kentucky Grazing Conference
• Featured Publication: Taking Soil Test Samples - AGR-16
• Dairy Market Continues to Struggle

Perspectives On The Development Of A Local Food System: The Case Of Dayton, Ohio, Diana Cuy Castellanos, John C. Jones, Joanne Christaldi, Katherine A. Liutkus

Health and Sport Science Faculty Publications

Multiple sectors play vital roles in a community’s development and maintenance of a sustainable local food system. This study explored the perceptions of twenty-two representatives from the civil society, public, and private sectors in Dayton, Ohio, about the development of the region’s local food system. The researchers employed grounded theory methodology for data collection and analysis. Core themes from the participants of each sector group emerged from the data and areas of convergence and divergence among groups were reported.

Volume 2, Chapter 12-18: Terrestrial Insects: Holometabola - Diptera Nematocera: Tipuloidea, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.

Volume 2, Chapter 12-17: Terrestrial Insects: Holometabola - Diptera Biology And Habitats, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.

Volume 2, Chapter 12-14: Terrestrial Insects: Holometabola – Lepidoptera: Tortricoidea – Paplionoidea, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.

Volume 2, Chapter 12-1: Terrestrial Insects: Habitat And Adaptations, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.

Volume 2, Chapter 12-9b: Terrestrial Insects: Holometabola - Coleoptera Families, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.

Characterization And Development Mechanism Of Apios Americana Tuber Starch, Hanyu Yangchen, Vikas Belamkar, Steven B. Cannon, Jay-Lin Jane

Department of Agronomy and Horticulture: Faculty Publications

Apios americana is a wild legume-bearing plant with edible tubers. Domestication of Apios is in progress because of the superior nutritional value and health benefits of the tuber. Objectives of this study were to: (1) characterize physicochemical properties of the Apios tuber starch; and (2) understand differences in starch structures and properties between the mother (seed) and child (progeny) tubers and the mechanism of starch development. Granules of the Apios tuber starch displayed ellipsoidal, rod, or kidney shape with diameter ranges of 1–30 m. The mother tuber starches displayed greater percentage crystallinity, larger gelatinization enthalpy-changes, longer branch-chain lengths of amylopectin, …

Combined Effects Of Fertilizer, Irrigation, And Paclobutrazol On Yield And Fruit Quality Of Mango, Babul C. Sarker, Mohammad A. Rahim, Douglas D. Archbold

Horticulture Faculty Publications

Combinations of fertilizer rates, foliar N sprays, irrigation practices, and paclobutrazol were studied to determine how much they could alter and/or improve mango (Mangifera indica L.) growth, flowering, and yield. Two treatment combinations derived from several years of prior studies of individual practices were compared: one combination was comprised of the best (BT) individual practices from the prior studies and included three applications of fertilizer, a 4% KNO₃ spray application before flowering, paclobutrazol at 7.5 g/L, and weekly irrigation, and the other combination was comprised of the next best (NB) individual practices including two applications of the same …

Genomics-Assisted Characterization Of A Breeding Collection Of Apios Americana, An Edible Tuberous Legume, Vikas Belamkar, Andrew Farmer, Nathan T. Weeks, Scott R. Kalberer, William J. Blackmon, Steven B. Cannon

Department of Agronomy and Horticulture: Faculty Publications

For species with potential as new crops, rapid improvement may be facilitated by new genomic methods. Apios (Apios americana Medik.), once a staple food source of Native American Indians, produces protein-rich tubers, tolerates a wide range of soils, and symbiotically fixes nitrogen. We report the first high-quality de novo transcriptome assembly, an expression atlas, and a set of 58,154 SNP and 39,609 gene expression markers (GEMs) for characterization of a breeding collection. Both SNPs and GEMs identify six genotypic clusters in the collection. Transcripts mapped to the Phaseolus vulgaris genome–another phaseoloid legume with the same chromosome number–provide provisional genetic …

Volume 2, Chapter 12-9a: Terrestrial Insects: Holometabola - Coleoptera Biology And Ecology, Janice M. Glime

Bryophyte Ecology Subchapters

No abstract provided.

Editorial: Food Legume Diversity And Legume Research Policies, Matthew W. Blair, Jing Wu, Shumin Wang

Agricultural and Environmental Sciences Faculty Research

No abstract provided.

Orm Expression Alters Sphingolipid Homeostasis And Differentially Affects Ceramide Synthase Activity, Athen N. Kimberlin, Gongshe Han, Kyle D. Luttgeharm, Ming Chen, Rebecca E. Cahoon, Julie M. Stone, Jennifer E. Markham, Teresa M. Dunn, Edgar B. Cahoon

Center for Plant Science Innovation: Faculty Publications

Sphingolipid synthesis is tightly regulated in eukaryotes. This regulation in plants ensures sufficient sphingolipids to support growth while limiting the accumulation of sphingolipid metabolites that induce programmed cell death. Serine palmitoyltransferase (SPT) catalyzes the first step in sphingolipid biosynthesis and is considered the primary sphingolipid homeostatic regulatory point. In this report, Arabidopsis (Arabidopsis thaliana) putative SPT regulatory proteins, orosomucoidlike proteins AtORM1 and AtORM2, were found to interact physically with Arabidopsis SPT and to suppress SPT activity when coexpressed with Arabidopsis SPT subunits long-chain base1 (LCB1) and LCB2 and the small subunit of SPT in a yeast ( …

Natural Variability In Acyl Moieties Of Sugar Esters Produced By Certain Tobacco And Other Solanaceae Species, Antoaneta B. Kroumova, David Zaitlin, George J. Wagner

Kentucky Tobacco Research and Development Center Faculty Publications

A unique feature of glandular trichomes of plants in the botanical family Solanaceae is that they produce sugar esters (SE), chemicals that have been shown to possess insecticidal, antifungal, and antibacterial properties. Sugar esters of tobacco (Nicotiana tabacum) provide pest resistance, and are important flavor precursors in oriental tobacco cultivars. Acyl moieties of SEs in Nicotiana spp., petunia, and tomato are shown to vary with respect to carbon length and isomer structure (2–12 carbon chain length; anteiso-, iso-, and straight-chain). Sugar esters and their acyl groups could serve as a model to explore the basis of …

Nebline, October 2016

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: Legends of the Fall — Accidental and Occasional Invaders

Food & Health

Farm & Acreage

Pests & Wildlife

Horticulture

Early Childhood

4-H & Youth

Extension Calendar

and other extension news and events

Renewable Chemicals And Bioproducts: A Potential For Agricultural Diversification And Economic Development, Henry Brockman

Bulletins 4000 -

Renewable chemicals are a new category of novel products: building blocks and ingredients for the production of chemicals produced from renewable feedstock and sustainable advanced manufacturing processes, leaving a smaller environmental footprint than traditional petrochemicals. Biologically based products are mainly non-food products derived from biomass.

Renewable chemicals represent a market opportunity predicted to grow from US$2.8 billion in 2011 to US$98.5 billion by 2020, driven by consumers demanding safer and more environmentally friendly products and the creation of a market advantage by using novel products in the manufacturing process. Renewable chemicals are a sustainable diversification option for rangeland irrigation precincts, …

Traversing Swanton Road, 23rd 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. Incorporated within this botanical overview but technically not part of the watershed sensustrictu, are the adjacent environs, ranging from the coastal strand up through the Western Terrace to the ocean draining ridge tops..... with the Arroyo de las Trancas/Last Chance Ridge defining the western/northwestern boundary and the Molino Creek divide, the southern demarcation. Paradoxically, the use/abuse that the watershed has sustained over …

Spatial And Temporal Variability Of Mid-South Cotton Grown On Heterogeneous Soils With Cereal Cover Crops In Northeast Arkansas, Erin Jane Kelly

Student Theses and Dissertations

The Mississippi Alluvial Plain has some of the most productive landscape for production agriculture in the world. This area also is known for highly variable soil within agricultural fields. In response to high input costs, many Midsouth cotton producers seek to improve input use efficiency using precision agriculture approaches including use of site-specific application of fertilizers, seed and other inputs directed at sub-regions of spatially variable fields. These sub-regions are known as management zones. One barrier to producer adoption of this type of site-specific management is a lack of practical guidelines for defining management zones tailored for the Midsouth region. …

Influence Of Source Credibility On Consumer Acceptance Of Genetically Modified Foods In China, Mingyang Zhang, Chao Chen, Wuyang Hu, Lijun Chen, Jintao Zhan

Agricultural Economics Faculty Publications

This paper examines the reasoning mechanism behind the consumer acceptance of genetically modified foods (GMFs) in China, and investigates influence of source credibility on consumer acceptance of GMFs. Based on the original Persuasion Model—which was developed by Carl Hovland, an American psychologist and pioneer in the study of communication and its effect on attitudes and beliefs—we conducted a survey using multistage sampling from 1167 urban residents, which were proportionally selected from six cities in three economic regions (south, central, and north) in the Jiangsu province through face to face interviews. Mixed-process regression that could correct endogeneity and ordered probit model …

Nebline, September 2016

NEBLINE Newsletter Archive from Nebraska Extension in Lancaster County

Feature: 4-H Youth Showcase Projects, Develop Skills at the Super Fair

Food & Health

Farm & Acreage

Pests & Wildlife

Horticulture

Early Childhood

4-H & Youth

Extension Calendar

and other extension news and events

Testing The Trait-Based Community Framework: Do Functional Traits Predict Competitive Outcomes?, Jennifer L. Funk, Amelia Wolf

Biology, Chemistry, and Environmental Sciences Faculty Articles and Research

Plant traits can be used to understand a range of ecological processes, including competition from invasive species. The extent to which native and invasive species are competing via limiting similarity or trait hierarchies has important implications for the management of invaded communities. We screened 47 native species that co-occur with Festuca perennis, a dominant invader in California serpentine grassland, for traits pertaining to resource use and acquisition. We then grew F. perennis with ten species spanning a range of functional similarity in pairwise competition trials. Functionally similar species did not have a strong adverse effect on F. perennis performance …

Summaries Of Arkansas Cotton Research 2015, Derrick M. Oosterhuis

Arkansas Agricultural Experiment Station Research Series

No abstract provided.

Survey Of Nematodes Associated With Terrestrial Slugs In Norway, J. L. Ross, E. S. Ivanova, B. A. Hatteland, M. B. Brurberg, S. Haukeland

All Peer-Reviewed Publications

A survey of nematodes associated with terrestrial slugs was conducted for the first time in Norway. A total of 611 terrestrial slugs were collected from 32 sample sites. Slugs were identified by means of morphological examination, dissection of genitalia and molecular analysis using mitochondrial DNA. Twelve slug species were identified, representing four different slug families. Internal nematodes were identiï¬'d by means of morphological analysis and the sequencing of the 18S rRNA gene. Of the sample sites studied, 62.5% were found to be positive for nematode parasites, with 18.7% of all slugs discovered being infected. Five nematode species were identified in …

Agronomic Options For Profitable Rice-Based Farming System In Northern Australia, Siva Sivapalan

Books & book chapters

Minimum air temperatures less than 15°C had biggest impact on varietal performance. Cold damage during the months of June and July warrants selection of varieties with cold tolerance for this environment, especially for the aerobic rice system. Ponded water has 4-8°C advantage over the air temperature, thus providing some protection against such cold damage. This has resulted in higher yields under flooded system. Planting dates, varying from late-February to late-May, were found to play a crucial role for plants to escape the low temperature damage at critical growth stages. Among the varieties tested, selected tropical varieties yielded higher than the …

Sheep Updates 2016, Mick Keogh, David Cornish, Michael Chilvers, Gerry Hinkley, Danielle England, Rosemary Bartle, Brad Wooldridge, Norm Santich, John Young, Ashley Herbert, Jamie Heinrich, Graeme Howie, Bruce Mullan

Sheep Updates

This session covers eleven papers from different authors:

1. Forward, Dr Bruce Mullan, Director Sheep Industry Development, Department of Agriculture and Food Western Australia

2. The Australian sheep industry in 2025, Mick Keogh, Australian Farm Institute

3. Decision making in a risky environment, David Cornish, Cornish Consulting

4. Business Transitioning, Michael Chilvers, Nile Tasmania

5. Advisory Boards in WA Agriculture - making life 'easier' for everyone, Gerry Hinkley, Producer, Tincurrin and Danielle England, Aginnovate

6. Principles of Successful Family Business Succession Strategies, Rosemary Bartle, Succession Planning Facilitator, Rabobank

7. Diversifying the Feedbase...is the …

Lingnan Gardeners Newsletter (No. 21) = 嶺南彩園通訊 (第21期), Lingnan Gardeners, Kwan Fong Cultural Research And Development Programme, Lingnan University

Lingnan Gardeners Newsletter 嶺南彩園通訊

Ending of the Heat 處暑

Phenotypic Plasticity And Population Differentiation In Response To Salinity In The Invasive Cordgrass Spartina Densiflora, Rebecca E. Drenovsky, Brenda J. Grewell, Jesus M. Castillo, Meghan J. Skaer Thomason

Biology

Salinity and tidal inundation induce physiological stress in vascular plant species and influence their distribution and productivity in estuarine wetlands. Climate change-induced sea level rise may magnify these abiotic stressors and the physiological stresses they can cause. Understanding the potential of invasive plants to respond to predicted salinity increases will elucidate their potential niche breadth. To examine potential phenotypic plasticity and functional trait responses to salinity stress in the invasive cordgrass Spartina densiflora, we collected rhizomes from four invasive populations occurring from California to Vancouver Island, British Columbia on the Pacific Coast of North America. In a glasshouse common …

Agro-Climatic Change, Crop Production And Mitigation Strategies-Case Studies In Arkansas, Usa And Kenya, John Westley Magugu

Graduate Theses and Dissertations

Although climate change impacts vary geographically and temporally, studies at local levels are not readily available for stakeholders to better understand how their local communities would be affected and what remedial measures could be more effective in their local contexts. This dissertation has examined climate change and its impacts in two different local contexts: eastern Arkansas in the USA and Nyando in Kenya. The first part of this dissertation develops agro-meteorological indicators and examines the relationship between agro-meteorological indicators and crop yields in eastern Arkansas between 1960 and 2014. Results reveal that temperature based indicators were more strongly correlated to …

Forage News [2016-08], Department Of Plant And Soil Sciences, University Of Kentucky

Forage News

• Eden Shale Farm to Host KFGC Field Day Sept. 13th
• Forage News Quote of the Month: "Forages, particularly the Grasses, are the most important plants on the face of the earth"
• Sugarcane Aphid Found in Kentucky
• UK Breeder Develops New Tall Fescue Variety
• Featured Publication: Stockpiling for Fall and Winter Pasture (AGR-162)
• Planting Brassicas and Cereals for Fall Forage
• Choose Varieties Wisely

Mapping And Analyzing Energy Use And Efficiency In A Modified Hydroponic Shipping Container, Rachel E. Sparks

Open Access Theses

In urban centers today, vertical farming is becoming a popular alternative to conventional agriculture in an effort to increase local food production and improve urban food security by growing crops using hydroponic methods in controlled environment spaces. More specifically, one vertical method involves growing crops inside refurbished shipping containers, or a “farm-in-a-box” concept, which offers a flexible, mobile, and scalable means of year-round food production in a variety of climates. Despite benefits of producing food locally, some of the concerns associated with these vertical farming systems include high energy consumption from climate control and electric lighting systems as well as …