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2018

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Articles 301 - 330 of 368

Full-Text Articles in Forest Sciences

Oxygen Isotope Discrimination Of Wheat And Its Relationship With Yield And Stomatal Conductance Under Irrigated Conditions, Sema Kale Çeli̇k, Sevi̇nç Madenoğlu, Bülent Sönmez, Kadri̇ Avağ, Ufuk Türker, Gökhan Çayci, Ali̇ Ci̇hat Kütük, Lee Kheng Heng Jan 2018

Oxygen Isotope Discrimination Of Wheat And Its Relationship With Yield And Stomatal Conductance Under Irrigated Conditions, Sema Kale Çeli̇k, Sevi̇nç Madenoğlu, Bülent Sönmez, Kadri̇ Avağ, Ufuk Türker, Gökhan Çayci, Ali̇ Ci̇hat Kütük, Lee Kheng Heng

Turkish Journal of Agriculture and Forestry

This study was carried out to determine the different irrigation regime effects on oxygen isotope discrimination of stem water (𖗢Os) and its relationship with grain yield (GY), aboveground biomass (BM), and stomatal conductivity (gs) of winter wheat. For this purpose a field experiment was conducted between 2009 and 2011 in a semiarid region of Turkey under rainfed (RF), deficit (DI), moderate (MI), and full irrigation (FI) conditions. The highest GY and BM (4.5 t ha$^{-1}$ and 14.5 t ha$^{-1}$) were measured from the FI treatment. However, the difference between the yield of DI and FI treatments was insignificant. It might …

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Cocklebur (Xanthium Strumarium L.) Seed Oil Andits Properties As An Alternative Biodiesel Source, Cüneyt Cesur, Tanzer Eryilmaz, Tansu Uskutoğlu, Hülya Doğan, Belgi̇n Coşge Şenkal Jan 2018

Cocklebur (Xanthium Strumarium L.) Seed Oil Andits Properties As An Alternative Biodiesel Source, Cüneyt Cesur, Tanzer Eryilmaz, Tansu Uskutoğlu, Hülya Doğan, Belgi̇n Coşge Şenkal

Turkish Journal of Agriculture and Forestry

Cocklebur (Xanthium strumarium L.) seed oil is available for biodiesel production as a wild plant species. In the present study, the cocklebur seeds collected from Muslubelen, Yozgat, Turkey, at 1440 m in 2014 were sown in the Bozok University Agriculture Faculty Topçu Research Area during 2015 and 2016. The maximum crude oil ratio was obtained as 35%. Oleic and linoleic acid contents of cocklebur seed oil were determined as 11.37% and 76.97%, respectively. Some important fuel properties such as density, flash point, water content, copper strip corrosion, iodine value, linolenic acid, methyl ester, and sulfated ash content values were measured …

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Impact Of Long-Lasting Insecticide-Incorporated Screens Oncolorado Potato Beetle And Plum Curculio, Ayhan Gökçe, Georgina V. Bingham, Mark E. Whalon Jan 2018

Impact Of Long-Lasting Insecticide-Incorporated Screens Oncolorado Potato Beetle And Plum Curculio, Ayhan Gökçe, Georgina V. Bingham, Mark E. Whalon

Turkish Journal of Agriculture and Forestry

The efficacy and behavior effects of long-lasting insecticide-incorporated screens (LLIS; polyolefin containing deltamethrin) were tested under laboratory conditions against two important pests (Leptinotarsa decemlineata and Conotrachelus nenuphar). Four Vestergaard ZeroFly® LLISs of different specifications were evaluated: trial batches JLCB061009, SPSA 6616, ZeroFly Greenhouse (B), and ZeroFly Greenhouse (G). Two control products were also included: ZeroFly Screen Greenhouse White with no insecticide and a standard commercial fiberglass insect screen. Contact bioassays revealed that all treated LLIS products, except JLCB061009, provided >90% mortality within 24 h of exposure for both susceptible (New Jersey, USA) and resistant (Long Island, NY, USA) L. decemlineata …

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Seed Fatty Acid Compositions And Chemotaxonomy Of Wild Safflower(Carthamus L., Asteraceae) Species In Turkey, Yusuf Arslan, Burcu Tarikahya Hacioğlu Jan 2018

Seed Fatty Acid Compositions And Chemotaxonomy Of Wild Safflower(Carthamus L., Asteraceae) Species In Turkey, Yusuf Arslan, Burcu Tarikahya Hacioğlu

Turkish Journal of Agriculture and Forestry

Safflower is an important oilseed crop for the dry regions of the world. In the present study, we aimed to find out the seed oil content and composition of the wild relatives of safflower. For this purpose, 71 populations from 5 naturally growing Carthamus species were collected from Turkey: Carthamus dentatus (30 accessions), Carthamus lanatus (30 accessions), Carthamus persicus (2 accessions), Carthamus glaucus (6 accessions), and Carthamus tenuis (3 accessions). Our research covered all naturally growing safflower species in the flora of Turkey. The seeds belonging to 71 accessions were germinated in cabinets and transferred to vials in order to …

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The Effects Of Ga3 Treatment On Yield, Carbohydrate, And Endogenous Hormone Changes In Memecik Olive Cultivar, Sali̇h Ülger, Sabri̇ye Atmaca, Sara Demi̇ral Jan 2018

The Effects Of Ga3 Treatment On Yield, Carbohydrate, And Endogenous Hormone Changes In Memecik Olive Cultivar, Sali̇h Ülger, Sabri̇ye Atmaca, Sara Demi̇ral

Turkish Journal of Agriculture and Forestry

In this experiment, 100 ppm gibberellic acid (GA3) was applied to Memecik olive trees in the middle of June in the `on' (bearing) year to research the effects on yield, reducing sugar amount, and endogenous hormones with the purpose of bearing fruit regularly. The yield was 19.33 kg/tree in control plants and 17.33 kg/tree in GA3-treated plants in the `on' year. The yield was 7.17 kg/tree in GA3-treated plants and 4.00 kg/tree in control plants in the 'off' year. While GA3 treatment was not very effective on the decrease of fruit amount in the `on' year, it increased fruit amount …

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Impacts Of 1-Methylcyclopropene (1-Mcp) On Postharvest Quality Of 'Ankara' Pears During Long-Term Storage, Mehmet Seçki̇n Kurubaş, Mustafa Erkan Jan 2018

Impacts Of 1-Methylcyclopropene (1-Mcp) On Postharvest Quality Of 'Ankara' Pears During Long-Term Storage, Mehmet Seçki̇n Kurubaş, Mustafa Erkan

Turkish Journal of Agriculture and Forestry

The effects of various concentrations of 1-methylcyclopropene (1-MCP) on `Ankara? pears (Pyrus communis L.) were investigated. The pears were harvested at commercial maturity level and 1-MCP (250 and 500 ppb) was applied to the fruit for 24 h at 5 °C. After 1-MCP treatments, the pears were kept at 0 °C temperature with 90%-92% relative humidity (RH) for 8 months. Fruit samples were taken at 2-month intervals from the storage room and various physical and chemical analyses, including soluble solids content, weight loss, flesh firmness, titratable acidity, skin color, respiration rate, ethylene emission, and fruit taste were carried out on …

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Automated Tree-Level Forest Quantification Using Airborne Lidar, Hamid Hamraz Jan 2018

Automated Tree-Level Forest Quantification Using Airborne Lidar, Hamid Hamraz

Theses and Dissertations--Computer Science

Traditional forest management relies on a small field sample and interpretation of aerial photography that not only are costly to execute but also yield inaccurate estimates of the entire forest in question. Airborne light detection and ranging (LiDAR) is a remote sensing technology that records point clouds representing the 3D structure of a forest canopy and the terrain underneath. We present a method for segmenting individual trees from the LiDAR point clouds without making prior assumptions about tree crown shapes and sizes. We then present a method that vertically stratifies the point cloud to an overstory and multiple understory tree …

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Diet Composition Explains Reductions In Stream Salamander Occupancy And Abundance Along A Conductivity Gradient, Jacob Matthew Hutton Jan 2018

Diet Composition Explains Reductions In Stream Salamander Occupancy And Abundance Along A Conductivity Gradient, Jacob Matthew Hutton

Theses and Dissertations--Forestry and Natural Resources

Changes in land use such as mountaintop removal mining with valley fills (MTR/VF) affect chemical, physical, and hydrological properties of headwater streams. Although numerous stream taxa have experienced significant declines from MTR/VF, stream salamanders appear to be particularly sensitive. Yet, the specific mechanism(s) responsible for the population declines has eluded researchers. We sampled salamander assemblages across a continuous specific conductivity (SC) gradient in southeastern Kentucky and estimated occupancy rates and abundance estimates along this gradient. We also examined the diet of larval and adult salamanders to determine if autochthony (A/T prey), total prey volume, and body condition is influenced by …

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Efficacy Of Herbivore Exclusion On Planted Tree Seedling Vitality On A Reclaimed Surface Mine In Eastern Kentucky, Zachary J. Hackworth Jan 2018

Efficacy Of Herbivore Exclusion On Planted Tree Seedling Vitality On A Reclaimed Surface Mine In Eastern Kentucky, Zachary J. Hackworth

Theses and Dissertations--Forestry and Natural Resources

Conventional Appalachian surface-mine reclamation techniques repress natural forest regeneration, and tree plantings are often necessary for reforestation. Reclaimed Appalachian surface mines harbor a suite of mammal herbivores that forage on recently planted seedlings. Anecdotal reports across Appalachia have implicated herbivory in the hindrance and failure of reforestation efforts, yet empirical evaluation of herbivory impacts on planted seedling vitality in this region remains relatively uninitiated. First growing-season survival, height growth, and mammal herbivory damage of black locust (Robinia pseudoacacia L.), shortleaf pine (Pinus echinata Mill.), and white oak (Quercus alba L.) are presented in response to varying intensities …

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Assessing Ecosystem Services From The Forestry-Based Reclamation Of Surface Mined Areas In The North Fork Of The Kentucky River Watershed, Kumari Gurung Jan 2018

Assessing Ecosystem Services From The Forestry-Based Reclamation Of Surface Mined Areas In The North Fork Of The Kentucky River Watershed, Kumari Gurung

Theses and Dissertations--Forestry and Natural Resources

Land Use Land Cover (LULC) changes can take place at the expense of degrading environmental conditions and undermining ecosystem’s capacity to deliver benefits to people. In the Appalachian region, surface mining for coal is a major driver of LULC change. The Surface Mining Control and Reclamation Act (SMCRA) of 1977 requires mine site reclamation but typical reclamation practices often result in land cover dominated by grass and shrubs. The Forestry Reclamation Approach (FRA) is a promising reclamation strategy but not in widespread use by industry. Assessing ecosystem services that can be obtained from a forest landscape may help policy-makers and …

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Two Post-Glacial Sagebrush Steppe Fire Records At The Wildland-Urban Interface, Eastern Cascades, Washington, Dusty Pilkington Jan 2018

Two Post-Glacial Sagebrush Steppe Fire Records At The Wildland-Urban Interface, Eastern Cascades, Washington, Dusty Pilkington

All Master's Theses

Recent increases in large fires in the rapidly developing wildland-urban interface (WUI) areas of central Washington, where development intermixes with wildland fuels, contribute to federal firefighting costs exceeding of $1 billion annually. In addition, cheatgrass (Bromus tectorum) invasion and anthropogenic-caused warming shorten fire return intervals while lengthening fire seasons. These climatic, ecological, economic, and social factors combine with fuel accumulation resulting from historic fire suppression to threaten lives and property in the WUI. To plan for safe growth in WUI areas, long-term fire histories are needed to expand understanding of past fire regimes in an understudied ecosystem, sagebrush …

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Water Toxicity Effects Test: Survival And Growth (Dry Mass), Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Water Toxicity Effects Test: Survival And Growth (Dry Mass), Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

No abstract provided.

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Sediment Toxicity Effects Test, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Sediment Toxicity Effects Test, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

No abstract provided.

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Wetted Width, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Wetted Width, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

No abstract provided.

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Within-Stream Variability Data, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Within-Stream Variability Data, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

Data Files

No abstract provided.

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Water Toxicity Effects Test: Physicochemical Data, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Water Toxicity Effects Test: Physicochemical Data, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

No abstract provided.

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Sediment % Solids And Total Organic Carbon, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Sediment % Solids And Total Organic Carbon, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

No abstract provided.

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Site Characteristics, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Site Characteristics, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

Stream order, HHEI, Watershed size, Forest Cover, Maximum pool depth

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Lonicera Maackii Leaf Leachate Toxicity: Survival, Eric B. Borth, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Lonicera Maackii Leaf Leachate Toxicity: Survival, Eric B. Borth, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

Data Files

Lymnaea stagnalis and Hyalella azteca

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Sapling, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Sapling, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

No abstract provided.

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Lonicera Maackii Berry Leachate Toxicity: Survival And Mass, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Lonicera Maackii Berry Leachate Toxicity: Survival And Mass, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

In-stream (in situ) and in-lab microcosm trials using Hyalella azteca, Anthopotamus verticis, and Allocapnia spp.

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Honeysuckle, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Honeysuckle, Erin C. Rowekamp, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

No abstract provided.

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Probe Data, Charlotte A. Shade, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Probe Data, Charlotte A. Shade, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

Data Files

Temperature, Dissolved oxygen, Conductivity, pH, Total dissolved solids

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Terrestrial Fine Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Terrestrial Fine Woody Debris, Erin C. Rowekamp, Julia I. Chapman, Ryan W. Mcewan

Data Files

No abstract provided.

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Herbaceous Vegetation: August, Julia I. Chapman, Margaret E. Maloney, Erin C. Rowekamp, Mitchell J. Kukla, Sean D. Mahoney, Eric B. Borth, Ryan W. Mcewan Jan 2018

Herbaceous Vegetation: August, Julia I. Chapman, Margaret E. Maloney, Erin C. Rowekamp, Mitchell J. Kukla, Sean D. Mahoney, Eric B. Borth, Ryan W. Mcewan

Data Files

August

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Time To Colonization Trial Data, Margaret E. Maloney, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Time To Colonization Trial Data, Margaret E. Maloney, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

No abstract provided.

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Lonicera Maackii Flower Leachate Toxicity: Physicochemical Data, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Lonicera Maackii Flower Leachate Toxicity: Physicochemical Data, Kevin W. Custer, Julia I. Chapman, Ryan W. Mcewan

Data Files

In-stream (in situ) and in-lab microcosm trials using Hyalella Azteca and Anthopotamus verticis

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Twig And Fruit Litter Basket, Erin C. Rowekamp, Taylor M. Buskey, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Twig And Fruit Litter Basket, Erin C. Rowekamp, Taylor M. Buskey, Julia I. Chapman, Ryan W. Mcewan

Data Files

No abstract provided.

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Lonicera Maackii Berry Leachate Toxicity: Length, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Lonicera Maackii Berry Leachate Toxicity: Length, Kevin W. Custer, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

In-stream (in situ) and in-lab microcosm trials using Hyalella azteca, Anthopotamus verticis, and Allocapnia spp.

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Site Population Trial Data, Margaret E. Maloney, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan Jan 2018

Site Population Trial Data, Margaret E. Maloney, Eric B. Borth, Julia I. Chapman, Ryan W. Mcewan

Data Files

No abstract provided.

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