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2009

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Articles 391 - 420 of 440

Full-Text Articles in Forest Sciences

Identification Of Potato Y Potyvirus (Pvy^O) Resistance In Wild And Cultivated Tomatoes, Fevzi̇ye Çelebi̇ Toprak, Emi̇nur Barutçu, Anne Frary, Sami̇ Doğanlar Jan 2009

Identification Of Potato Y Potyvirus (Pvy^O) Resistance In Wild And Cultivated Tomatoes, Fevzi̇ye Çelebi̇ Toprak, Emi̇nur Barutçu, Anne Frary, Sami̇ Doğanlar

Turkish Journal of Agriculture and Forestry

Potato Y potyvirus (PVY) is an important plant pathogen worldwide that infects and causes yield losses in the family Solanaceae including potato (Solanum tuberosum), pepper (Capsicum spp.), tomato (S. lycopersicum), and tobacco (Nicotiana tabacum). In this study, 20 different tomato accessions representing 6 different species were mechanically inoculated with PVY^O. The plants were scored visually for symptoms and then tested for presence of the virus 2-4 weeks after inoculation by ELISA. The results were variable. Most wild species of tomato sustained PVY^O replication in inoculated leaves. Some of the wild species showed an immune response, while some became systemically infected. …

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Investigations On The Pollen Morphology Of Some Fruit Species, Yasemi̇n Evrenosoğlu, Adalet Misirli Jan 2009

Investigations On The Pollen Morphology Of Some Fruit Species, Yasemi̇n Evrenosoğlu, Adalet Misirli

Turkish Journal of Agriculture and Forestry

Morphological characters are used to identify plant material. Pollen morphology is an important parameter. This is of great importance in detailed investigations by scanning electron microscope (SEM). In order to develop a plant material identification tool, this research was carried out to determine the pollen morphology of some fruit species using SEM on apple, pear, quince, apricot, plum, peach, almond, chestnut, walnut, pomegranate, and persimmon cultivars. The surface features, as well as length, width, and P/E ratio of pollen were observed. Pollen length and width changed with investigated species and cultivars; the longest and widest pollen grains were detected in …

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Agronomic Trait Assessment And Selection For Number Of Capsules In Determinate X Indeterminate Crosses Of Sesame, M. İlhan Çağirgan, Selçuk Özerden, M. Onur Özbaş Jan 2009

Agronomic Trait Assessment And Selection For Number Of Capsules In Determinate X Indeterminate Crosses Of Sesame, M. İlhan Çağirgan, Selçuk Özerden, M. Onur Özbaş

Turkish Journal of Agriculture and Forestry

Despite the progress, improved determinate (dt/dt) lines of sesame are still low yielding. Further improvement may be achieved by crossing locally adapted indeterminate cultivars with desirable determinates from a broad-based composite population. In order to test this hypothesis, 43 F_2 base populations from these kinds of crosses were generated and a distinct variability among populations was observed for seed yield and other traits. A 20% positive selection for number of capsules as the most yield-related component was applied to the pairs of determinate and indeterminate segregating in each population. Although seed yield per plant, number of capsules per plant and …

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Species Vs. Height As Predictors Of Increased Growth Rate In New England Canopy Trees, Kiely Schultz Jan 2009

Species Vs. Height As Predictors Of Increased Growth Rate In New England Canopy Trees, Kiely Schultz

Honors Projects

As part of a larger study on the effect of an experimentally-created gap within a forest on adult canopy trees, focuses on the possible effect of tree height versus type of species on radial growth response to gap creation. Sample includes fifty trees within four transects next to a gap in the Yale-Myers Experimental Forest in Connecticut, with results showing that type of species affects radial growth response.

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Timber Talk, Vol. 47, No. 1, February 1, 2009 Jan 2009

Timber Talk, Vol. 47, No. 1, February 1, 2009

Timber Talk: Nebraska Forest Industry Newsletter

Lumber Market News; Hardwood Lumber Price; Trends—Green; Hardwood Lumber Price Trends—Kiln Dried; Softwood Lumber Price Trends Hardwood Lumber Market History—Green; Conservation Trees For Nebraska Initiative; Prophets of American Forestry; Nebraska Forestry Industry Spotlight; The Trading Post; Timber Sales; How Cold Is It In Nebraska?

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Selected Law Pertaining To Nebraskas Firefighters And Fire Departments, Nebraska Forest Service, Wildland Fire Protection Section Jan 2009

Selected Law Pertaining To Nebraskas Firefighters And Fire Departments, Nebraska Forest Service, Wildland Fire Protection Section

Nebraska Forest Service: Publications

The Nebraska statutes contained in this handbook reflect actions taken through the end of the 2009 regular legislative session; Nebraska Laws: Cities, Counties and Political Subdivisions.[13-303] Nebraska Budget Act.[13-501 - 13-601] Interlocal Cooperation Act.[13-801 - 13-807] Political Subdivisions Tort Claims Act.[13-901 - 13-903, 13-1801] Local Government Miscellaneous Expenditure Act.[13-2202 - 13-2204] Emergency Response Systems, Employment of Full-time Fire Chief .[16-222.01 – 16-222.03] Serving Outside City Limits; Contracts.[18-1706 - 18-1710] Fire Training School.[18-1712 - 18-1714] Sinking Funds, Cities and Villages .[19-1301 - 1304] Annexation of Territory by a City or Village.[31-763 - 31-766] Multiple office holding; when allowed.[32-604] Fire Companies and …

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Insect Pests Of Broadleaf Trees, Mark Harrell, Rachel Allison, Laurie Stepanek Jan 2009

Insect Pests Of Broadleaf Trees, Mark Harrell, Rachel Allison, Laurie Stepanek

Nebraska Forest Service: Publications

Caterpillars; Fall webworm; Mimosa webworm; Bagworm; Elm leaf beetle; Spider mites; Aphids; Plant bugs; Lace bugs; Oystershell scale; Lilac borer/ ash borer; Red oak borer; Carpenterworm; Bronze birch borer

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Wanted: Dead Or Alive, Emerald Ash Borer, Laurie Stepanek Jan 2009

Wanted: Dead Or Alive, Emerald Ash Borer, Laurie Stepanek

Nebraska Forest Service: Publications

How to Recognize Emerald Ash Borer; Emerald Ash Borer Facts; Help Us Control This Notorious Killer!; How to Recognize Ash Trees

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Maternal Antibody Transfer And Meningeal Worm Infection Rates In Kentucky Elk, Willie Elwood Bowling Jan 2009

Maternal Antibody Transfer And Meningeal Worm Infection Rates In Kentucky Elk, Willie Elwood Bowling

University of Kentucky Master's Theses

Elk (Cervus elaphus) were historically present throughout Kentucky, but were extirpated by the mid 19th century. Kentucky Department of Fish and Wildlife Resources initiated elk reintroduction efforts in 1997, resulting in a self-sustaining population. I designed this project to study the effects of a parasitic nematode, meningeal worm (Parelaphostrongylus tenuis), on Kentucky’s elk herd. I examined potential maternal transfer of P. tenuis antibodies to elk calves, and investigated the relationship between elk habitat use and meningeal worm infection. I captured neonatal elk in 2004-06, fitted them with VHF transmitters, and collected blood samples for an enzyme-linked …

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Matrix Geochemistry And Phytophthora Occurrence On Reforested Mine Lands In Appalachia, Kathryn M. Ward Jan 2009

Matrix Geochemistry And Phytophthora Occurrence On Reforested Mine Lands In Appalachia, Kathryn M. Ward

University of Kentucky Master's Theses

At the Bent Mountain surface mine, Pike County, Kentucky, a study has been ongoing since 2005 to assess the influence of various types of loose-graded mine spoils on water quality and forest establishment. Six research plots consist of two replicates of brown weathered sandstone, gray unweathered sandstone, and mixed brown sandstone, gray sandstone, and shale that were emplaced according to Forestry Reclamation Approach criteria. A series of analyses was initiated in 2007 to examine influence of spoil matrix composition on sulfate and carbonate geochemistry of infiltrated waters, as well as to investigate the occurrence of Phytophthora, a group of …

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A Case Study Approach For Assessing Operational And Silvicultural Performance Of Whole-Tree Biomass Harvesting In Maine, Charles E. Coup Jan 2009

A Case Study Approach For Assessing Operational And Silvicultural Performance Of Whole-Tree Biomass Harvesting In Maine, Charles E. Coup

Electronic Theses and Dissertations

In the Northeastern United States, re-emerging markets for renewable energy are driving interest in increasing the harvest of underutilized biomass material from Maine’s forest. These markets may offer opportunities for forest managers to implement silvicultural treatments that have previously been foregone due to their high cost. However, many operational challenges arise in using current harvesting systems to harvest biomass material profitably while simultaneously achieving silvicultrual objectives. This research uses a case study approach to analyzing some of the possibilities and obstacles in implementing biomass harvesting in Maine. The first three studies investigate a factorial silvicultural and operational case study involving …

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Making Biomass Pay: Obstacles And Opportunities, Gail Wells Jan 2009

Making Biomass Pay: Obstacles And Opportunities, Gail Wells

Joint Fire Science Program Digests

Removing hazardous fuels to reduce the risk of wildfire has become a priority for land managers across the United States. Utilizing biomass taken from forests to cover the cost of fuel reduction is an attractive ideal. Effective utilization could also address important national challenges such as improving forest health, increasing domestic energy supplies, reducing carbon emissions, and revitalizing rural economies. However, getting woody biomass from the forest to the consumer is economically and logistically difficult, and efforts to make biomass utilization profitable have been disappointing so far. JFSP-funded researchers have found that, while there is no recipe for building a …

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A Powerful New Planning Environment For Fuels Managers: The Interagency Fuels Treatment Decision Support System, Gail Wells Jan 2009

A Powerful New Planning Environment For Fuels Managers: The Interagency Fuels Treatment Decision Support System, Gail Wells

Joint Fire Science Program Digests

The Joint Fire Science Program, the National Wildfire Coordinating Group Fuels Management Committee, and Sonoma Technology, Inc. are unveiling the prototype of a new planning environment that will help fuels specialists negotiate the confusing array of planning tools. The new framework, dubbed the Interagency Fuels Treatment Decision Support System, or IFT-DSS, organizes fuels-planning software and data into a seamless user environment. IFT-DSS offers users access to powerful modeling software from within a well-designed, intuitive graphical user interface, and it provides a common platform for the further development of fuels-planning software tools. The name may not slide easily off the tongue—you …

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Nebraska Forest Service Annual Report 2009, Scott J. Josiah, Becky Erdkamp Jan 2009

Nebraska Forest Service Annual Report 2009, Scott J. Josiah, Becky Erdkamp

Nebraska Forest Service: Publications

Welcome From The State Forester; NCTA Converting To Woody Biomass With Assistance From NFS; Nebraska Statewide Arboretum Merges With NFS; Protecting Nebraska’s Forests Against A Multitude Of Threats; NFS Air Spade Workshops Get To The Root Of It All; Retree Nebraska Making Strides Toward Million-Tree Goal; Reaching Out Through Social Marketing; Inventories Give Information About State’s Trees And Forests; Programs Help Rural Fire Districts Meet Equipment Needs; Pip Receives Silver Smokey Bear Award; NFS Provides Training To 2,500 Nebraska Firefighters; $1.3m CSREES Grant Paves The Way For Hybrid Hazelnut R&D; Firefighters Museum & Education Center Opens In Kearney; NFS Facilitates …

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Bagworms, Webworms And Tent Caterpillars, Laurie Stepanek, Mark Harrell Jan 2009

Bagworms, Webworms And Tent Caterpillars, Laurie Stepanek, Mark Harrell

Nebraska Forest Service: Publications

Bagworm; Eastern & Prairie Tent Caterpillars; Fall Webworm; Mimosa Webworm; Insecticides

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Creating A Community Wildfire Protection Plan, George Teixeira Jan 2009

Creating A Community Wildfire Protection Plan, George Teixeira

Nebraska Forest Service: Publications

What Is a CWPP?; Why Should My Community Develop a CWPP?; Who Should Develop a CWPP?; When Should My Community Develop Its CWPP?; What Areas Are Included in a CWPP?; Action Steps in Community Wildfi re Protection Planning

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Diseases Of Evergreen Trees, Mark Harrell, Rachel Allison, Laurie Stepanek Jan 2009

Diseases Of Evergreen Trees, Mark Harrell, Rachel Allison, Laurie Stepanek

Nebraska Forest Service: Publications

Pine wilt; Diplodia (Sphaeropsis) blight; Dothistroma needle blight; Western gall rust; Brown spot needle blight; Needle cast of spruce; Sirococcus shoot blight; Cercospora blight; ;Cedar-apple rust ; Cytospora canker

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Insect Pests Of Evergreen Trees, Mark Harrell, Rachel Allison, Laurie Stepanek Jan 2009

Insect Pests Of Evergreen Trees, Mark Harrell, Rachel Allison, Laurie Stepanek

Nebraska Forest Service: Publications

Sawflies; Bagworm; Spruce needleminer; Tussock moths; Spruce spider mite; Aphids; Pine needle scale; Zimmerman pine moth; Pine tip moth ;Ips bark beetles

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Development Of A Ligno-Cellulosic Polymeric And Reinforced Sheet Molding Compound (Smc), Ryan Harris Mills Jan 2009

Development Of A Ligno-Cellulosic Polymeric And Reinforced Sheet Molding Compound (Smc), Ryan Harris Mills

Electronic Theses and Dissertations

The overall objective of this dissertation was to study the surface energy and acid-base characteristics of natural fibers, glass, a wood extract, and a sheet molding compound prepreg to facilitate the fabrication of totally synthetic and partially renewable sheet molding compounds (SMCs). The water absorption and micro-mechanical performance of the totally synthetic and partially renewable SMC composites were compared through accelerated aging experiments. Reinforcing glass sized for polyester, bast kenaf fibers, hot water extract from Acer rubrum, and a dicyclopentadiene modified polyester prepreg were analyzed by inverse gas chromatography to evaluate and help predict how the various components may interact …

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Gordon Natural Area (Gna) - (2009) - An Ecological Treasure Island In A Sea Of Development, Gerard Hertel Jan 2009

Gordon Natural Area (Gna) - (2009) - An Ecological Treasure Island In A Sea Of Development, Gerard Hertel

Gordon Natural Area History & Strategic Plan Documents

No abstract provided.

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Variability In The Response Of Chickpea Cultivars To Short-Term Salinity, In Terms Of Water Retention Capacity, Membrane Permeability, And Osmo-Protection, Neera Garg, Ranju Singla Jan 2009

Variability In The Response Of Chickpea Cultivars To Short-Term Salinity, In Terms Of Water Retention Capacity, Membrane Permeability, And Osmo-Protection, Neera Garg, Ranju Singla

Turkish Journal of Agriculture and Forestry

Seedlings of 2 chickpea cultivars (Cicer arietinum L.), salt-tolerant kabuli (CSG 9651) and salt-sensitive desi (DCP 92-3), were raised under control (distilled water) and salinity (EC = 4, 6, and 8 dS m^{-1}) conditions. Salt treatments were applied once symbiosis was well established (i.e. 15 days after sowing [DAS]) and continued until the last sampling stage (i.e. 70 DAS). The experiments were terminated 70 DAS and the plants were analyzed 40 and 70 DAS. Salt stress decreased the relative water content (RWC), membrane stability index (MSI), leaf chlorophyll (CHL), plant biomass, and grain yield, and increased total soluble sugars in …

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Identification And Characterization Of Hydrolytic Enzymes From The Midgut Of The Cotton Bollworm, Helicoverpa Armigera Hübner (Lepidoptera: Noctuidae), Ebru Özgür, Meral Yücel, Hüseyi̇n Avni̇ Öktem Jan 2009

Identification And Characterization Of Hydrolytic Enzymes From The Midgut Of The Cotton Bollworm, Helicoverpa Armigera Hübner (Lepidoptera: Noctuidae), Ebru Özgür, Meral Yücel, Hüseyi̇n Avni̇ Öktem

Turkish Journal of Agriculture and Forestry

Midgut hydrolytic enzymes of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) were identified and partially characterized. K_m, V_{max}, optimum pH, and specific activity were determined for proteolytic enzymes and \alpha-amylases. All hydrolytic enzyme activity had an optimum pH value in the alkaline pH range. We observed major serine protease activity, together with minor cysteine-like activity, the former being significantly inhibited by soybean trypsin inhibitor (SBTI) and aprotinin. Moreover, different degrees of inhibition were observed with synthetic protease inhibitors. Electrophoretic methods revealed 3 isozymes of \alpha-amylases, of which 2 had higher molecular weight and were more active than the other. Inhibition of amylolytic …

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Orthotomicus Tridentatus Eggers: Distribution And Biology In Cedar Forests Of Turkey, Mustafa Avci, Oğuzhan Sarikaya Jan 2009

Orthotomicus Tridentatus Eggers: Distribution And Biology In Cedar Forests Of Turkey, Mustafa Avci, Oğuzhan Sarikaya

Turkish Journal of Agriculture and Forestry

Orthotomicus tridentatus Eggers, 1921 (Col.: Curculionidae, Scolytinae) is the most important forest pest of cedar stands in Turkey. Yet, very little is known about its distribution and biology. Therefore, the distribution and biological characteristics of O. tridentatus were studied in the Taurus Mountains in southern Turkey between 2006 and 2008. It was determined to be a species common to all cedar forests. The length of adults was between 2.5 and 3.9 mm and the main galleries were 'S' shaped. O. tridentatus was determined to be a monophagus species for Cedrus libani A. Rich. and as endemic to Turkey. It was …

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Green And Roasted Mate: Phenolic Profile And Antioxidant Activity, Ni̇hal Türkmen Erol, Ferda Sari, Eda Çalikoğlu, Y. Sedat Veli̇oğlu Jan 2009

Green And Roasted Mate: Phenolic Profile And Antioxidant Activity, Ni̇hal Türkmen Erol, Ferda Sari, Eda Çalikoğlu, Y. Sedat Veli̇oğlu

Turkish Journal of Agriculture and Forestry

Mate infusions have been recently and frequently used as dietary supplements because of their health effects to prevent atherosclerosis and coronary heart disease and to be antioxidant. The aim of this study was to determine phenolic compounds and antioxidant activities of green mate (GM) and roasted mate (RM) extracts and compare them with green tea (GT). Total polyphenol content of GM and RM extracts was found to be similar and to range from 237.20 to 438.50 mg gallic acid equivalent (GAE) g^{-1} dry extract and from 256.72 to 473.11 mg GAE g^{-1} dry extract depending on the solvent used and …

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Molecular Characterization And Genetic Diversity Analysis Of Citrus Cultivars By Rapd Markers, M. N. R. Baig, Sapna Grewal, Santosh Dhillon Jan 2009

Molecular Characterization And Genetic Diversity Analysis Of Citrus Cultivars By Rapd Markers, M. N. R. Baig, Sapna Grewal, Santosh Dhillon

Turkish Journal of Agriculture and Forestry

Random Amplified Polymorphic DNA (RAPD) markers were used to evaluate genetic similarity and inter-relationship among 18 citrus cultivars, including 13 species and 5 hybrids. Out of 40 decamer primers screened, 25 were selected which produced 250 markers; of which 231 were polymorphic and some species or cultivar specific RAPD markers. The Jaccard coefficient was used to calculate the genetic similarity. UPGMA was used to generate the dendrogram which clearly separated Jatti-Khatti from all major clusters at a similarity coefficient of 0.61. The average genetic similarity value observed across all the genotypes was 0.63, with the 2 sweet orange cultivars, Jaffa …

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The Physico-Chemical And Microbiological Properties Of Wheat Flour In Thrace, Ali̇ Aydin, Peter Paulsen, Frans Johannes M. Smulders Jan 2009

The Physico-Chemical And Microbiological Properties Of Wheat Flour In Thrace, Ali̇ Aydin, Peter Paulsen, Frans Johannes M. Smulders

Turkish Journal of Agriculture and Forestry

The physico-chemical and microbiological properties of wheat flour samples (type 650) obtained from 7 different locations in the Thrace region (Turkey) were assessed. Totally 142 wheat flour samples were analysed physico-chemically in terms of ash, moisture, fat acidity, and protein amounts, and microbiologically in terms of total mesophilic aerobic bacteria (TMAB), Escherichia coli, Bacillus cereus, Clostridium perfringens, moulds, rope-spore counts, and Salmonella spp. In the physico-chemical parameters investigated, only the ash levels of flour samples were higher than the limit laid down in the Turkish Food Codex and Codex Alimentarius. In some locations, the levels of TMAB, E. coli, and …

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Letter From The Dean, Lalit Verma Jan 2009

Letter From The Dean, Lalit Verma

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

No abstract provided.

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Diseases Of Broadleaf Trees, Mark Harrell, Rachel Allison, Laurie Stepanek Jan 2009

Diseases Of Broadleaf Trees, Mark Harrell, Rachel Allison, Laurie Stepanek

Nebraska Forest Service: Publications

Anthracnose; Apple scab; Cedar-apple rust; Ash rust; Fire blight; Dutch elm disease; Oak wilt; Tubakia leaf spot; Verticillium wilt; Bur oak decline; Cankers

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Bark Beetles Of Pine, Laurie Stepanek Jan 2009

Bark Beetles Of Pine, Laurie Stepanek

Nebraska Forest Service: Publications

Identification; Mountain Pine Beetle; Red Turpentine Beetle; IPS Beetles; Insecticides

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Timber Talk, Vol. 47, No. 3, September 1, 2009 Jan 2009

Timber Talk, Vol. 47, No. 3, September 1, 2009

Timber Talk: Nebraska Forest Industry Newsletter

Lumber Market News ; Hardwood Lumber Price Trends—Green; Hardwood Lumber Price Trends—Kiln Dried; Softwood Lumber Price Trends; Timber Stumpage Prices; Logger Safety Training Sept. 5; Nebraska Timber Industry; Nebraska Wood Waste; Nebraska Forestry Industry Spotlight; Timberland Investment Outputs; The Trading Post.

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