Agriculture Commons^™

Ag At The Crossroads, John Owens

John Owens: Speeches and Appearances

Good afternoon. It is always a pleasure to take part in Ag at the Crossroads. I am particularly pleased today to be asked to talk about one of our Institute of Agriculture and Natural Resources' strategic plan priorities and that is water. One of our four strategic plan priority goals is to, "Develop an integrated, multi-disciplinary, multi-functional water resources program addressing Nebraska's needs that provides statewide, national, and international leadership in water quality and quantity management in the next decade."

Abn Summer Meeting, John Owens

John Owens: Speeches and Appearances

We in the Institute of Agriculture and Natural Resources are so pleased you're here with us today at our Agricultural Research and Development Center. We hope you enjoy the day as much as we enjoy having you here. Thank you for coming. Thanks, also, to everyone who has been involved in putting this day together. Your work is very much appreciated.

The Status And Impact Of The Rainbow Lorikeet (Trichoglossus Haematodus Moluccanus) In South-West Western Australia, Tamara Chapman

Agriculture reports

This report provides a summary of the biology and ecology of the rainbow lorikeet (Trichoglossus haematodus moluccanus), examines the status and management of the rainbow lorikeet in other regions; assesses the threats posed by the feral population in south-west Western Australia; and formulates the aims and objectives for an integrated pest management program.

Step Workshops - Guide For Facilitators, Department Of Agriculture And Food, Western Australia

Agriculture reports

The STEP workshops can be run as independent modules or as part of the ?A Million Hectares for the Future? workshop series of which the overarching learning outcome is: Participants will be able to identify and make informed decisions to profitably manage salinity on their farms. Outlines the preferred pathway for the modules in the Million Hectares for the Future series.

Wendell Berry's Sociological Imagination: Agrarian Values And Good Leadership In A Postmodern Culture, Paul Alan Kaak

Dissertations

Problem. The question guiding my dissertation research was: In what ways do the writings of Wendell Berry, reflecting his sociological imagination, address and advance leadership theory with specific regard for the issue of agrarian values?

Method. I used the writings of Wendell Berry as a modified case study for my inductive, theoretical, exploratory research in a qualitative vein. As I reviewed his writings, I identified his moral ideology and extracted his value-set. Along the way, I observed Berry's use of a method promoted by C. Wright Mills in his book The Sociological Imagination (1959). Since sociological imagination finds …

Bioprospecting, Philip A. Reed

STEMPS Faculty Publications

The article discusses that the product applications of bioprospecting are almost limitless. This area of biotechnology has been labeled bioprospecting, and it is a practice that is creating worldwide controversy. Defined simply, bioprospecting is "scientific research that looks for a useful application, process, or product in nature." However, as with most biotechnologies, the definition does not address the complexities of bioprospecting. Archeologists are finding that some biotechnologies, such as the use of herbs for medicine and the use of fermentation and yeast in food products, date back 5,000 to 10,000 years (De Miranda, 2004). The four main categories of biotechnologies …

2005 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 2005. It includes work on corn, soybean and the management of several weeds in North Dakota.

Press Conference, John Owens

John Owens: Speeches and Appearances

*Here in the Institute of Agriculture and Natural Resources, home to the National Drought Mitigation Center, we often say we are partners with Nebraska. This wonderful three year partnership between the USDA's Risk Management Agency, the National Drought Mitigation Center, and UNL's Department of Computer Science and Engineering to devote more than $7 million in new federal funding to further refine Web tools to help ag producers and others in our country monitor drought impacts and manage its risks is of real value both for our state and our world.

Lead Luncheon, John Owens

John Owens: Speeches and Appearances

I'm so delighted to be here today to provide an update on the Institute of Agriculture and Natural Resources. It's a treat to share some Institute highlights to let you know not only what your land-grant university is doing to benefit you and your neighbors, but also what you have to be proud of here.

Lead Presentation, John Owens

John Owens: Speeches and Appearances

Thank you for inviting us to share with you some information about the Institute of Agriculture and Natural Resources, and what we are doing for Nebraska. As a stakeholder in Nebraska's land-grant university, you and every other Nebraskan have every right at any time to ask us what we've done for you and your neighbors lately. We welcome the question. There is so much excellent work being accomplished on this campus and throughout Nebraska that I am delighted each time I have the opportunity to talk about it. The biggest problem I find is stopping - there's always so much …

University Of Nebraska/Kimmel Education And Research Center Groundbreaking, John Owens

John Owens: Speeches and Appearances

It's really exciting to be here this afternoon as we officially celebrate breaking ground for the University of Nebraska/Kimmel Education and Research Center. We in the Institute of Agriculture and Natural Resources at the University of Nebraska - Lincoln are so pleased to be part of this celebration. We look forward to all the good work that will be accomplished here to benefit Nebraska.

Ribbon Cutting At Kimmel Education And Research Center, John Owens

John Owens: Speeches and Appearances

It is marvelously fitting that we gather here in Nebraska City on this lovely fall afternoon to officially celebrate this wonderful new center. Fall is a traditional-time of harvest in Nebraska, and for many of us there is a deep and abiding satisfaction in bringing a good crop to fruition. Apple harvests at Nebraska City orchards long have brought visitors here each year for fresh fruit and cider.

Dinsdale Family Luncheon, John Owens

John Owens: Speeches and Appearances

It's such a treat to be here today to have this opportunity to bring together members of the Dinsdale family, whose generosity makes our Dinsdale Family Faculty Awards possible, and this year's recipients of those awards in the Institute of Agriculture and Natural Resources at the University of Nebraska-Lincoln.

Agriculture Builders Of Nebraska, Inc. Annual Meeting, John Owens

John Owens: Speeches and Appearances

Let me start today by saying thank you. Thank you, each of you, for your strong support of the Institute of Agriculture and Natural Resources and the University of Nebraska.

Nebraska Hall Of Agricultural Achievement, John Owens

John Owens: Speeches and Appearances

I am delighted to be present tonight to celebrate the achievements of these wonderful and worthy new additions to the Nebraska Hall of Agricultural Achievement. It's a real treat to have this opportunity to focus on recognizing some very special Nebraskans who are so deserving of their honors. I can think of few experiences more gratifying than those in which we all get to say a heartfelt “well done and thank you” to those people who make significant contributions to the world around them by the way they live their lives and by the places they choose to put their …

Effect Of Control Plot Density, Control Plot Arrangement, And Assumption Of Random Or Fixed Effects On Nonreplicated Experiments For Germplasm Screening Using Spatial Models, Boi Sebolai, Jeffrey F. Pedersen, D. B. Marx, D. L. Boykin

Department of Agronomy and Horticulture: Faculty Publications

Early generation selection experiments typically involve several hundred to thousands of lines. Various systematic and statistical techniques have been developed to increase effectiveness and efficiencies in such experiments, including the development and application of spatial statistical models. In this study, mixed model equations were used to provide least squares means (LSMEANs) and best linear unbiased predictors (BLUPs) and compare selection effectiveness and efficiencies to observed (Y) and true values in simulated experiments varying in size (10 X 10, 20 X 20 and 30 X 30 grids), control plots densities (0, 5, 10, 20, and 50%), control plot arrangements (high, medium, …

Marketing Locally Produced Foods: Consumer And Farmer Opinions In Washington County, Nebraska, Mindi L. Schneider, Charles A. Francis

Department of Agronomy and Horticulture: Faculty Publications

Local food system potentials were studied in Washington County, Nebraska, United States. As a departure from most studies of locally based systems, farmers were surveyed in addition to consumers for potential participation. Data about the current food system and opinions and preferences for local production, marketing, and purchasing of food were collected using self-administered mail questionnaires. The response rate was 35% for the farmer survey and 37% for the consumer survey. Results indicated that, on the farming side of the food system, conventional corn and soybean production and marketing predominated in Washington County, and farmer interest in producing for local …

Econometric Modeling Of Turkey's Hazelnut Sector: Implications On Recent Policies*, Fahri̇ Yavuz, Avni̇ Bi̇ri̇nci̇, Kenan Peker, Tecer Atsan

Turkish Journal of Agriculture and Forestry

The hazelnut is an important product in Turkey's economy as it is an important source of income for a large number of family farms and makes up around 75% of world production and 20% of total agricultural exports from Turkey. Hazelnut production has increased in recent years along with high levels of storage and expansion of planted areas from traditional steep lands to flat lands, where alternative cropping is possible. The aim of this study was to determine the major causes of these problems using an econometric model of Turkey's hazelnut sector. Estimation results of the model comply with economic …

Effects Of Minimum And Conventional Tillage Systems On Soil Properties And Yield Of Winter Wheat (Triticum Aestivum L.) In Clay-Loam In The Çanakkale Region, Saki̇ne Özpinar, Anil Çay

Turkish Journal of Agriculture and Forestry

The experiment was conducted during the 2001-2003 cropping period to evaluate the effects of 3 tillage systems, conventional tillage (CT), and minimum tillage with rototiller (MTR) and disc (MTD), on the soil properties and wheat yield (Triticum aestivum L.). Based on 2-year results, soil bulk density at 0-10 cm in the growing period in MTR, CT and MTD was 1.20, 1.34 and 1.24 Mg m^{-3} respectively. Corresponding values at 10-20 and 20-30 cm were 1.26, 1.29 and 1.21 Mg m^{-3} and 1.30, 1.27 and 1.40 Mg m^{-3} respectively. Aggregate size distribution and mean weight diameter throughout the 2 years of …

Using Advanced Spectral Analyses Techniques As Possible Means Of Identifying Clay Minerals, Ünal Altinbaş, Yusuf Kurucu, Mustafa Bolca, A. H. El-Nahry

Turkish Journal of Agriculture and Forestry

Spectral analyses, one of the most advanced remote sensing techniques, were used as a possible means of identifying the mineralogy of the clay fractions that corresponded to the Küçük Menderes Plain, south of İzmir, Turkey. Different spectral processes were used to execute the prospective spectral analyses. The processes include: i. the reflectance calibration of TM images belonging to the studied area, ii. using minimum noise fraction (MNF) transformation and iii. creating the pixel purity index (PPI), which was used to the most "spectrally pure", extreme, pixel in multi-spectral images. Spectral analyses of the clay mineralogy of the studied area were …

Clay Minerals, Ca/Mg Ratio And Fe-Al-Oxides In Relation To Structural Stability, Hydraulic Conductivity And Soil Erosion In Southeastern Turkey, Kadi̇r Yilmaz, İsmai̇l Çeli̇k, Seli̇m Kapur, John Ryan

Turkish Journal of Agriculture and Forestry

Studies of clay mineralogy and related chemical composition are rarely connected with implications for soil management in the field. However, this study attempts to manifest the practical utilization of analytical data for determining the susceptibility to soil erosion. The data obtained involve the determination of clay mineral properties, calcium/magnesium ratios, and free aluminum (Al) and iron (Fe) oxides on structure stability, and hydraulic conductivity properties. Nine representative soil pedons developed on serpentine, limestone, and basalt parent materials were selected for the study. The soils were initially grouped into 3 according to their structural stability values. Group 1 soils had the …

Interactive Effect Of Nitrogen And Boron On Cotton Yield And Fiber Quality, Özgül Görmüş

Turkish Journal of Agriculture and Forestry

This study aimed to determine the effect of application rates of N and B on cotton yield and fiber quality. Suregrow 125 (Gossypium hirsutum L.) was grown on a clay soil having an average 0.38 mg kg^{-1} B concentration. Analysis of leaf tissue taken at early bloom and before the nutrient application indicated that N and B concentrations were sufficient. Nitrogen was applied to the soil at rates of 0, 80 and 160 kg ha^{-1}, and B was applied to the foliage 3 times for totals of 0, 0.56 and 1.12 kg B ha^{-1}. Foliar-applied B significantly increased leaf blade …

Determining Some Yield And Quality Characteristics Of Mutants Induced From A Durum Wheat (Triticum Durum Desf.) Cultivar, Mehmet Ali̇ Saki̇n, Ahmet Yildirim, Sabri̇ Gökmen

Turkish Journal of Agriculture and Forestry

Mutation breeding is one of the breeding methods used successfully in durum wheat for selecting lines with increased agronomic values. The aim of this study was to select mutant lines having a better agronomic potential than the mother variety Gediz-75 in the M_6 and M_7 generations. The mutants were derived from the variety Gediz-75 of durum wheat (Triticum durum Desf.). The seeds were either irradiated with gamma rays at Cobalt 60 (^{60}Co) or treated with ethyl-methane-sulfonate (EMS). Eighteen selected mutants and the mother variety Gediz-75 were examined in the M_6 and M_7 generations for yield and quality characteristics. The experiments …

An Investigation On The Establishment Of Artificial Pasture Under Ankara's Ecological Conditions*, Sebahatti̇n Albayrak, Hayretti̇n Eki̇z

Turkish Journal of Agriculture and Forestry

This study was conducted to determine suitable perennial forage species and their mixtures for the establishment of short-term artificial pastures under dry conditions in Ankara between 2000 and 2002. Alfalfa (Medicago sativa L.), sainfoin (Onobrychis sativa Lam.), smooth brome (Bromus inermis Leys.), crested wheatgrass (Agropyron cristatum (L.) Gaertn.) and their binary and complex mixtures were used. The research was carried out in a randomized block design with 4 replicates. The results showed significant differences among the botanical composition ratio in mixtures. The highest green, hay and dry matter yield were obtained from alfalfa + smooth brome mixtures (16.05 t ha^{-1}, …

Palynological Study On The Pollen Grains Of Selected Turkish Grape (Vitis Vinifera L.) Cultivars, Bi̇rhan Marasali, Münevver Pinar, H. Nurhan Büyükkartal

Turkish Journal of Agriculture and Forestry

The pollen morphology and ultrastructure of selected Turkish indigenous grape cultivars and newly released hybrid varieties were examined by light microscopy and scanning electron microscopy. The pollen differed in some microstructural parameters. The size of the pollen grains ranged from 19.0 x 22.4 µm in Beyaz Çavuş to 24.3 x 21.0 µm in Siyah Gemre. Hönüsü cultivar showed significant variations in the sizes of the polar and equatorial axes. The greatest colpus size was measured in Siyah Gemre (18.4 µm) and the longest pore size was observed in Ata sarısı (28 µm). The exine thickness of the pollen grains ranged …

Cambial Isoperoxidases Related To Graft Compatibility In Pear-Quince Graft Combinations, Hati̇ce Gülen, Menşure Çeli̇k, Mehmet Polat, Ati̇lla Eri̇ş

Turkish Journal of Agriculture and Forestry

This study was initiated to survey the graft compatibility characteristics of some selected quince clones known as "S.Ö." with regard to isoperoxidase markers. Compatible (Beurre Hardy = BH) and incompatible (Bartlett = BT) pear cultivars were grafted on quince A (QA) and 13 S.Ö. quince clones by T budding. Bark tissues were collected from the union (4, 8 and 12 weeks after grafting) and from unbudded rootstocks in addition to current-year shoots of 2 pear scions to investigate 2 anodal isoperoxidase bands. Isoperoxidase profiles of the samples were visualized by native polyacrylamide gel electrophoresis and no marked difference was detected …

Controlling Foliar Blight Of Wheat In South Asia: A Holistic Approach, Etienne Duveiller, R. C. Sharma, D. Mercado, H. Maraite, M. R. Bhatta, G. Ortiz-Ferrara, D. Sharma

Turkish Journal of Agriculture and Forestry

Foliar blight is a major biotic constraint to wheat in the Gangetic plains of south Asia, particularly in the rice-wheat system. The disease occurs as a complex of spot blotch and tan spot caused by C. sativus and P. tritici-repentis, respectively. Yield losses reach on average 15% but are variable depending on sowing time, years, locations and stress conditions. Resistance breeding has been the cornerstone of the control strategy. Through international agricultural research efforts in collaboration with National Agricultural Research Systems (NARS), resistance sources from China, Zambia and Brazil were identified and novel germplasm such as synthetic hexaploid wheats derived …

International Cooperation For Winter Wheat Improvement In Central Asia: Results And Perspectives, Alexei I. Morgounov, H.-J. Braun, H. Ketata, R. Paroda

Turkish Journal of Agriculture and Forestry

Crop production in Central Asia has long history going back to 2000-3000 years BC. The farming in the past was mainly concentrated in irrigated areas along the two main river basins: AmuDarya and Syr-Darya. Wheat cultivation in Central Asia in the 20th century concentrated primarily in rainfed area. The breeding work conducted at several stations in the region was initially based on local landraces and resulted in adapted varieties. However, the breeding work was not consistent and interrupted. Since 1991 the wheat became an important crop due to food security concern and replaced cotton in some areas. The modern varieties …

Avenacin A-1 Content Of Some Local Oat Genotypes And The In Vitro Effect Of Avenacins On Several Soil-Borne Fungal Pathogens Of Cereals, Fi̇gen Mert Türk, Cem Ö. Egesel, M. Kemal Gül

Turkish Journal of Agriculture and Forestry

Avenacins are a mixture of 4 major (avenacin A-1, B-1, A-2 and B-2) autofluorescent compounds that are accumulated in the roots of oats (Avena spp.), especially root tips, and that have antimicrobial properties. In this research, we screened 189 genotypes of the family Gramineae for autofluorescence and also quantified 35 Avena genotypes for avenacin A-1 content, which is the most abundant and toxic avenacin type. Screening under UV transillumination proved that none of the species, except for Avena spp. accumulated avenacins in their roots. We aimed to find a genotype that lacks avenacin A-1 in order to investigate fungus-oat interaction …

Response To Some Acaricides Of The Two-Spotted Spider Mite (Tetranychus Urticae Koch) From Protected Vegetables In Isparta, Recep Ay, Elvan Sökeli̇, İsmai̇l Karaca, M. Oktay Gürkan

Turkish Journal of Agriculture and Forestry

The two-spotted spider mite, Tetranychus urticae Koch, was tested for susceptibility to various acaricides, propargite (Omite) 570 g l^{-1}, amitraz (Kortraz) 200 g l^{-1} and abamectin (Agrimec) 18 g l^{-1}. Propargite, a selective acaricide, has been used to control T. urticae in many crops in Turkey. Amitraz and abamectin have acaricidal and insecticidal properties, and are thus used to control spider mites and some vegetable pests (e.g., whiteflies and Liriomyza spp.). Five different T. urticae populations collected from vegetable greenhouses in Isparta and their responses to those acaricides were investigated by leaf dip assay and compared with those of a …