Agriculture Commons^™

Character Education And 4-H Youth Development, Jessica Lynn Mullins

University of Kentucky Master's Theses

Character education assumes responsibility for influencing and educating youth on morals, values, beliefs and positive character attributes in order to influence them into being positive and contributing members of society. Character education is most often taught in the home, schools and community. One community organization that integrates character education into its programming is 4-H Youth Development. The purpose of this research is to view the relationships between character education and 4-H, and more so whether Kentucky 4-H programs influence the knowledge, attitudes and practices of positive character among youth leaders. This study also looked at length of 4-H involvement and …

Restoration Of Tall Fescue Pastures To Native Warm Season Grasslands: Does A Fungal Endophyte Symbiosis Play A Role In Restoration Success?, Sarah Lynn Hall

University of Kentucky Doctoral Dissertations

Tall fescue, a cool-season grass native to Europe, central Asia, and northern Africa, has been widely distributed throughout the U.S. for use as turf and forage. Following its widespread planting, its ability to associate with a toxic fungal endophyte, Neotyphodium coenophialum, was discovered. Research has linked this fescue-endophyte association with increased biotic and abiotic stress resistance in endophyte-infected (E+) versus endophyte-free (E-) plants, and these differences may affect the ability of land managers to eradicate tall fescue and restore native grasslands. I conducted three studies to examine whether E+ tall fescue plants respond differently to management than E- plants, …

Intermediate Steps Of Loline Alkaloid Biosynthesis, Jerome Ralph Faulkner

University of Kentucky Doctoral Dissertations

Epichloë species and their anamorphs, Neotyphodium species, are fungal endophytes that inhabit cool-season grasses and often produce bioprotective alkaloids. These alkaloids include lolines, which are insecticidal and insect feeding deterrents. Lolines are exo-1-aminopyrrolizidines with an oxygen bridge between carbons 2 and 7, and are usually methylated and formylated or acetylated on the 1-amine. In previously published studies lolines were shown to be derived from the amino acids L-proline and L-homoserine. In addition the gene cluster involved in loline-alkaloid biosynthesis has also been characterized. In this dissertation a survey of plant-endophyte symbioses revealed a phenotype with only N-acetylnorloline. This …

Effects Of Adipogenic Compounds On Growth Performance, Hormonal Status And Fat Deposition Of Finishing Beef Steers, Susanna Elizabeth Kitts

University of Kentucky Doctoral Dissertations

Processes that regulate site of fat deposition in beef cattle are poorly understood. For the producer to procure the greatest profit, it is ideal to maximize intramuscular fat. Furthermore, to understand the physiological mechanisms affecting fat depots, it is necessary to evaluate hormones involved in growth regulation. Using a 2 x 2 factorial design of treatments, four experiments were conducted to examine two adipogenic compounds, chlortetracycline and dexamethasone. Synovex-S® and Revalor-S® were used to investigate potential interactions between growth implants and adipogenic compound. Growth performance, carcass quality, organ and fat mass and plasma hormone concentrations were measured in these studies. …

The Economics Of Processing Ethanol At Louisiana Sugar Mills: A Three Part Economic Analysis Of Feedstocks, Risk, Business Strategies, And Uncertainty, Paul Michael Darby

LSU Doctoral Dissertations

The development of an efficient processing infrastructure is critical for the budding cellulosic ethanol industry. Developing a diverse feedstock portfolio is one crucial part of this process which can lead towards economically feasible cellulosic ethanol production. Cellulosic ethanol production requires the production and transportation of large quantities of biomass. Sugarcane and other dense grasses offer a compelling path towards a successful biomass supply chain. The Louisiana sugar belt already has an infrastructure adapted to the task of biomass supply, and taking advantage of this is one key way that a cellulosic ethanol plant can benefit from the region’s endowment. Additionally, …

Three Essays On The Labor Allocation Decisions Of The Modern Farm Family, Jeremy Michael D'Antoni

LSU Doctoral Dissertations

The goal of this dissertation is to address the role of government payments in the allocation of off-farm labor through three essays. Government payments have been a part of agriculture since 1933 and at no time has the government stated a policy objective of decreasing the agricultural labor force. Using time series data and new econometric techniques, the first essay finds agricultural policy may have an unintended impact on labor migration. Specifically, we find that government payments increased labor migration from the farm. From 1939 to 2007, increased direct government payments resulted in greater migration of labor from agriculture. The …

2011 Weed Science Research Report – Blue Section, Ndsu Weed Science, Dept. Of Plant Sciences

Plant Sciences Weed Science Reports

The Weed Science team at North Dakota State University conduct field research in the State of North Dakota. This specific document reports on field research conducted in 2011. It includes work on several crops and the management of several weeds in North Dakota.

Analysis Of The Performance Of Peanut Fame In A Single Cylinder Idi Engine And Investigations Of Neat Methyl Ester Influence On Fuel Quality, Jeffery Lewis

College of Graduate Studies: Theses & Dissertations

Author's abstract: To meet evolving standards set forth by the U.S. EPA and U.S. Energy Policy it is necessary to consider a variety of feedstock for biofuels synthesis and to understand the role individual fatty acids contribute to the overall performance. It is the belief of the authors that excess peanut production would provide an excellent source for high quality biodiesel feedstock, and the complete property and combustion analysis of the fatty acid components will provide insight for future biofuel developments. The preliminary investigations of the project focused on the combustion performance and thermal efficiency of peanut FAME and its …

In Response To Need, A History Of The Western Australian Department Of Agriculture - 1894 To 2008, E N. Fitzpatrick

Books & book chapters

The department was not always such a significant organisation; it came from very small beginnings. However, it has been a major component of the engine which has produced an agricultural industry in a Mediterranean climate zone which is superior to all others operating in this zone. This book is a summary of its work. There are many more fascinating chapters to be recorded of work on specific issues of development, investigation or conservation. I hope they will be written by someone one day. With this in mind the department has decided to put the book on a web page where …

Nutrient Management Record Keeping Calendar, July 2011-December 2012, Leslie J. Johnson, Charles Shapiro, Charles Wortmann, Chris G. Henry, Larry Howard, Tamilee D. Nennich

Nebraska Cooperative Extension: Faculty and Staff Publications

Records for Nebraska Concentrated Animal Feeding Operations

Record the initials of the person performing the inspection each time. Check marks will not satisfy the record-keeping requirements.

Record any maintenance and/or repairs.

Correct all deficiencies within 30 days.

Western Australia's Biosecurity, Department Of Agriculture And Food, Western Australia, Department Of Environment And Conservation, Western Australia, Department Of Fisheries, Western Australia, Forest Products Commission, Western Australia

Biosecurity published reports

Biosecurity is the protection of the economy, environment and human health from the negative impacts of pests, weeds and diseases, including the management of invasive species if they become established (definition adopted by AusBIOSEC).

This requires steps to prevent the entry of harmful organisms, as well as the timely and efficient management of them if they do enter.

Biosecurity threats range from catastrophic diseases such as Foot and Mouth Disease, which causes rapid and widespread animal deaths, to more subtle and slower spreading problems such as invasive weeds, mussels that foul vessel hulls and fungus-induced dieback disease of trees. These …

Winter Wheat Yield And Yield Components As Affected By Soil Tillage Systems, Irena Jug, Danijel Jug, Mirjana Sabo, Bojan Stipesevic, Miro Stosic

Turkish Journal of Agriculture and Forestry

Eight different soil tillage systems (TS) for winter wheat after soybean crop production were compared at the chernozem soil type in Croatian Baranya region in a 4-year period (2001/2002, 2002/2003, 2003/2004, 2004/2005). Tillage systems were: CT) conventional tillage, based on autumn mouldboard ploughing; DH) autumn disc harrowing; CH) autumn disc harrowing + chiselling; NT) No-tillage; CSDW) DH for winter wheat, alternated with CT for previous crop soybean; CWDS) CT for wheat, DH for soybean; CsNw) NT for wheat, CT for soybean; and CwNs) CT for wheat, NT for soybean. The dry conditions experienced in 2002/2003 decreased at half winter wheat …

Seasonal Changes In The Physiological Characteristics Of Anatolian Black Pine And The Effect On Seedling Quality, Ayşe Deli̇göz

Turkish Journal of Agriculture and Forestry

Seasonal changes in water relations parameters, dry weight fraction (DWF), and root growth potential (RGP) were examined for Anatolian black pine [Pinus nigra Arn. subsp. pallasiana (Lamb.) Holmboe] seedlings. In addition, phenological conditions were monitored. Water relations parameters were estimated using the pressure-volume technique, including osmotic potential at full turgor (\psi_{\pi100}), osmotic potential at turgor loss point (\psi_{\piTLP}), free water content at turgor loss point (FWC_{TLP}), relative water content at turgor loss point (RWC_{TLP}), and symplastic water/dry weight (Vo/DW). \psi_{\piTLP}, \psi_{\pi100}, DWF, and RGP showed seasonal changes, but FWC_{TLP}, RWC_{TLP}, and Vo/DW did not show a clear seasonal change. The …

Methyl Bromide Alternatives For Presowing Fumigation In Tobacco Seedling Production, Özhan Boz, Ayhan Yildiz, Kemal Benli̇oğlu, Hati̇ce Seher Benli̇oğlu

Turkish Journal of Agriculture and Forestry

This study aimed to evaluate the effects of soil fumigant alternatives to methyl bromide (MeBr) on the weeds, damping-off, and seedling growth of tobacco. Methyl bromide (90 g m^{-2}), dazomet (D) (50 g m^{-2}), and metam sodium (MS) (100 mL m^{-2}) were evaluated in 2 locations in the Karacasu district of Aydın province, Turkey, February-April 2005. In addition, half doses of D and MS were investigated in 2006. MeBr treatment had 52.5% control against the postemergence damping-off caused by Pythium spp., while alternative treatments had no effect on the disease in 2005. In 2006, MeBr and MS (100 mL m^{-2}) …

Micropropagation Of The Apricot (Prunus Armeniaca L.) Cv. Hacıhaliloğlu By Means Of Single Node Culture, Hakan Yildirim, Ahmet Onay, Engi̇n Ti̇lkat, Zafer Aktürk

Turkish Journal of Agriculture and Forestry

Hacıhaliloğlu is one of the most widely cultivated apricot (Prunus armeniaca L.) cultivars in Turkey. It produces fruit of excellent quality and is consumed both fresh and dried. In this study several factors affecting in vitro culture, rapid proliferation, rooting, and acclimatization of the apricot cultivar Hacıhaliloğlu were examined. During this study significant differences in harvesting dates were observed, with the month of May being noted as the best time to examine the in vitro culture of Hacıhaliloğlu. The effects of the cytokinin 6-benzylaminopurine (BA), kinetin (Kin), and thidiazuron (TDZ) were evaluated individually, and different concentrations of BA were also …

The Use Of Artificial Neural Networks For Forecasting The Monthly Mean Soil Temperatures In Adana, Turkey, Mehmet Bi̇lgi̇li̇

Turkish Journal of Agriculture and Forestry

The objective of this paper was to develop an artificial neural network (ANN) model in order to predict monthly mean soil temperature for the present month by using various previous monthly mean meteorological variables. For this purpose, the measured soil temperature and other meteorological data between the years of 2000 and 2007 at Adana meteorological station were used. The soil temperatures were measured at depths of 5, 10, 20, 50, and 100 cm below the ground level by the Turkish State Meteorological Service (TSMS). A 3-layer feed-forward artificial neural network structure was constructed and a back-propagation algorithm was used for …

Soil Texture Fractions And Fractal Dimension Of Particle Size Distribution As Predictors Of Interrill Erodibility, Mohammad Reza Neyshabouri, Abbas Ahmadi, Hassan Rouhipour, Hossein Asadi, Mehdi Irannajad

Turkish Journal of Agriculture and Forestry

Choosing a particular textural fraction as an erodibility predictor is often confusing because various fractions of soil particles have been introduced as erodibility index by many researchers. Recently, advances in fractal theory have introduced a scaling parameter for characterizing soil fragments. The objectives of this study were (i) to test the applicability of fractal dimension of particle size distribution (PSD) for estimation of interrill erodibility and (ii) to study the relationship between interrill erodibility and soil texture components. Samples from 36 soil series with contrasting characters were collected from northwest Iran. The sand fractions were obtained by sieving, while silt …

Determination Of Protein And Gluten Quality-Related Parameters Of Wheat Flour Using Near-Infrared Reflectance Spectroscopy (Nirs), Mehmet Başlar, Mustafa Fati̇h Ertugay

Turkish Journal of Agriculture and Forestry

Wet chemistry analyses done for quality control purposes in wheat and flour processing are time-consuming. Near-infrared spectroscopy (NIRS) as an alternative technology to conventional methods allows us to obtain results in a few seconds. In this study, NIRS was used in the development of calibration models for protein, wet and dry gluten contents and Zeleny sedimentation of flours from the grinding of 120 varieties of bread wheat collected from different regions of Turkey. Therefore, spectra in the range of 1100 to 2500 nm of the flours were acquired by scanning with the NIRSystems 6500 monochromator. Multiple linear regression (MLR) and …

Clonal Propagation And Cryogenic Storage Of Virus-Free Grapevine (Vitis Vinifera L.) Via Meristem Culture, Mohamad Shatnawi, Ghandi Anfoka, Rida Shibli, Mohammed Al-Mazra'awi, Wesam Shahrour, Areej Arebiat

Turkish Journal of Agriculture and Forestry

A protocol for production of virus-free Vitis vinifera using meristem culture was developed. Meristems (0.1-0.2 mm) of V. vinifera infected with grapevine fanleaf virus and grape leafroll associated viruses were excised from 1-year-old growing vines. Shoot tips were cultured on half-strength Murashige and Skoog (MS) medium, supplemented with 0.02 mg L^{-1} of benzylaminopurine (BAP) and 0.01 mg L^{-1} of naphthalene acetic acid (NAA). BAP and kinetin resulted in differences in the number of new shoots per explant, shoot height, and number of new leaves per explant. BAP at 0.8 mg L^{-1} gave the highest in vitro multiplication rate, with 5.25 …

Total Carbon Stocks And Carbon Accumulation In Living Tree Biomass In Forest Ecosystems Of Turkey, Doğanay Tolunay

Turkish Journal of Agriculture and Forestry

In this study, the carbon stocks of forests of Turkey were examined by taking the national forest inventory completed in 2004 as a basis. Furthermore, the annual accumulations of carbon in the above- and below-ground biomass of Turkey were also investigated according to the gain-loss methods of "Agriculture, Forestry and Other Land Use" (AFOLU), published in 2006. The results of estimates showed that the total stock in all carbon pools (above- and below-ground, dead wood, litter, and soil) in the forests of Turkey was 2251.26 Tg C in 2004. Of that total carbon stock, 74.78% was in soil, 21.32% in …