Forest Sciences Commons^™

Efficacy Of Dormant Season Herbicide Application On Control Of Japanese Honeysuckle (Lonicera Japonica) For Habitat Restoration In Kentucky, Jason L. Weese

Theses and Dissertations--Forestry and Natural Resources

Kentucky’s disappearing native grassland communities provide habitat for native flora and fauna. A study was conducted to compare the efficacy of herbicides in control of the invasive Japanese honeysuckle (Lonicera japonica) applied at times when most native species are dormant. Six herbicide mixtures (glyphosate, glyphosate + imazapyr, glyphosate + imazapic, imazapyr, triclopyr + difluphenzopyr, and metsulfuron + difluphenzopyr) were applied in three seasons to assess the effect of application timing of each mixture on honeysuckle control. Herbicides were applied with a CO² pressurized sprayer at three sites in a randomized complete block design. Pretreatment sampling indicated that …

The Impacts Of Logging With Current And Modified Best Management Practices On Watershed Characteristics In Eastern Kentucky, Chase Clark

Theses and Dissertations--Forestry and Natural Resources

In Kentucky, Best Management Practices (BMPs) were developed to protect the integrity of water resources during and after silvicultural operations, but their effectiveness is largely unknown. The study objectives were to (1) quantify the extent to which current BMPs minimized logging-related changes in stream water quality, channel morphology, and the content of woody debris and (2) quantify the extent to which modified BMPs influenced these characteristics. Six watersheds in eastern Kentucky were commercially logged in 2008-2009. In each watershed, one of three treatments was implemented (each replicated once). Treatment 1 (BMP) was based on current Kentucky BMPs. In treatments 2 …

Developing A Sustainable Approach To Emerald Ash Borer Management, William C. Davidson

Theses and Dissertations--Entomology

Emerald ash borer, Agrilus planipennis Fairmaire, is an invasive wood boring beetle native to eastern Asia which was first detected in North America in 2002. All North American Fraxinus (ash) species are suitable hosts and susceptible to attack. Emerald ash borer larvae feed on phloem beneath the bark of infested trees resulting in girdling and mortality in as little as five years following initial infestation. Since its introduction near Detroit, Michigan, emerald ash borer has rapidly spread throughout much of the United States and portions of Canada, threatening the persistence of ash in invaded regions.

I tested a management strategy …

Comparison Of Berry Quality In Highbush Blueberry Cultivars Grown According To Conventional And Organic Methods, Ireneusz Ochmian, Karolina Kozos, Piotr Chelpinski, Malgorzata Szczepanek

Turkish Journal of Agriculture and Forestry

This research was conducted in the Laboratory Orchard at the Department of Horticulture, West Pomeranian University of Technology in Szczecin and at a certified production farm specializing in the cultivation of highbush blueberry located in Szczecin. The effect of cultivation conditions?organic plantation in organic peat substrate (pH 3.46) and conventional plantation in mineral substrate (pH 5.32)-on the berry quality of four highbush blueberry cultivars (firmness, size, chemical composition including content of organic compounds and polyphenols) was examined. Blueberry bushes were planted at a spacing of 2.3 × 1.2 m. Bushes were planted on organic and conventional plantations, and the substrates …

Seed Priming With Cacl2 And Ridge Planting For Improved Drought Resistance In Maize, Muhammad Bismillah Khan, Mubshar Hussain, Abid Raza, Shahid Farooq, Khawar Jabran

Turkish Journal of Agriculture and Forestry

Drought-induced losses in crop output have forced the scientific community to develop efficient management strategies to cope with the adversities of drought stress. This field trial was done to assess the role of seed priming techniques and planting methods for improving drought resistance in Pakistani hybrid maize in 2011. Maize seeds were soaked in an aerated solution of CaCl2 (osmopriming; $\Psi$s -1.25 MPa) and distilled water (hydropriming), while untreated dry seeds were taken as controls. Primed and untreated seeds were sown on either ridges or a flat seedbed and were subjected to drought at vegetative and tasseling stages. Drought was …

Moth Bean Germplasm Screening Against Yellow Mosaic Virus, Ii. Developmentof Moth Bean High-Yielding Seed And Fodder Cultivars, Muhammad Yaqoob, Naqib Ullah Khan, Muhammad Mansoor, Samrin Gul, Ibni Amin Khalil, Khilwat Afridi

Turkish Journal of Agriculture and Forestry

Moth bean [Vigna aconitifolia (Jacq.) Marechal] susceptibility to yellow mosaic virus (YMV) purged the crop from the farming system. Therefore, genotype-by-environment interaction (GEI) and biplot studies were undertaken to develop YMV-resistant moth bean cultivars from the germplasm. The germplasm was acquired from the National Agricultural Research Centre (NARC), Islamabad and from the farm fields in two provinces, Punjab and Sindh, Pakistan. Two different groups of moth bean genotypes were screened for YMV versus seed yield (11 genotypes) and YMV versus fodder yield (10 genotypes) over three years (2006-2008) in three locations in Pakistan [D.I.Khan Agriculture Research Station (ARS), Serai Naurang …

Emissions Of Volatile Organic Compounds From Lacquer Coatings Used In The Furniture Industry, Modified With Nanoparticles Of Inorganic Metal Compounds, Agata Stachowiak Wencek, Magdalena Zborowska, Wlodzimierz Pradzynski, Boguslawa Waliszewska

Turkish Journal of Agriculture and Forestry

This study presents results of studies on emissions of volatile organic compounds from lacquer products containing nanoparticles of inorganic metal compounds (SiO2, TiO2, and Ag). The lacquers selected for analyses were applied on the surface of Scots pine (Pinus sylvestris L.) wood. Tests were conducted by gas chromatography coupled with mass spectrometry and thermal desorption. Concentrations of volatile organic compounds (VOCs) released to the air by tested coatings in the first stage of the analyses fell within a very broad range (307-1829 µg/m3). Analyses of VOC emissions were conducted after 1, 3, 5, 7, 10, 30, 60, and 90 days. …

Effects Of Arbuscular Mycorrhizal Fungus, Humic Acid, And Whey On Wilt Diseasecaused By Verticillium Dahliae Kleb. In Three Solanaceous Crops, Semra Demi̇r, Suat Şensoy, Elvan Ocak, Şefi̇k Tüfenkci̇, Emre Demi̇rer Durak, Çeknas Erdi̇nç, Hüsameddi̇n Ünsal

Turkish Journal of Agriculture and Forestry

This study examined the effects of arbuscular mycorrhizal fungi (AMF), humic acid (HA), and whey (W) application on wilt disease caused by Verticillium dahliae Kleb. in tomato, pepper, and eggplant. Single, dual, and triple applications of AMF (2.5 g inocula of either Glomus mosseae or G. intraradices), HA (500 ppm), and W (50 mL kg-1) were found to improve the morphological growth and nutritional status of all three host species. Moreover, dual and triple applications reduced the severity of wilt disease caused by V. dahliae by between 40% and 70.5%. Triple application of AMF, HA, and W decreased the number …

Comparative Analysis Of Genetic Diversity Among Chinese Watermelon Germplasmsusing Ssr And Srap Markers, And Implications For Future Genetic Improvement, Pangqiao Wang, Qiong Li, Jianbin Hu, Yan Su

Turkish Journal of Agriculture and Forestry

The genetic diversity of watermelon [Citrullus lanatus (Thunb.) Matsum. & Nakai] in China, the world's largest producer of watermelon fruits, has not been examined. Two molecular markers, sequence-related amplified polymorphism (SRAP) and simple sequence repeat (SSR), were used to investigate the genetic variation and genetic relationship among 54 Chinese watermelon accessions, as well as 7 accessions from Africa, the United States, and Japan. SRAP assay generated 312 bands, of which 163 were polymorphic, while SSR assay detected 101 alleles with 87 polymorphic alleles and 114 genotypes. A comparative analysis of the diversity index, effective multiplex ratio, and marker index of …

Species-Specific Growth And Photosynthetic Responses Of First-Year Seedlingsof Four Coniferous Species To Open-Field Experimental Warming, Saerom Han, Sun Jeong Lee, Tae Kyung Yoon, Seung Hyun Han, Jongyeol Lee, Seongjun Kim, Jaehong Hwang, Min Seok Cho, Yowhan Son

Turkish Journal of Agriculture and Forestry

Temperature increase due to climate change may affect the growth and physiological traits of trees. To cope with climate change, it is important to understand the responses of trees to these changes, as well as how these responses vary among species, functional groups, and biomes. In this study, we aimed to examine the species-specific growth and photosynthetic responses of first-year seedlings of 4 coniferous species to future temperature increase by conducting an open-field experimental warming study. The air temperature in the warmed plots was maintained at 3.02 °C higher than that in the control plots with an open-field experimental warming …

Modernization In Plant Breeding Approaches For Improving Biotic Stress Resistance In Crop Plants, Babar Hussain

Turkish Journal of Agriculture and Forestry

Biotic stresses are a potential threat to global food security. The origin of new pathogens and insect races due to climatic andgenetic factors is a major challenge for plant breeders in breeding biotic stress resistant crops. Yield losses due to biotic stresses haveresulted in 800 million people underfed in the world. Reduced yield due to biotic stresses and increasing food demand put internationalfood security at risk as 70% more food will be required in 2050. This review describes and compares the conventional and moleculargenetics methods being used for breeding biotic stress resistant crops. In the past, classical breeding approaches like …

Insect-Resistant Transgenic Crops: Retrospect And Challenges, Allah Bakhsh, Saber Delpasand Khabbazi, Faheem Shahzad Baloch, Ufuk Demi̇rel, Mehmet Emi̇n Çalişkan, Rüştü Hati̇poğlu, Sebahatti̇n Özcan, Hakan Özkan

Turkish Journal of Agriculture and Forestry

The advent of genetic engineering has revolutionized agriculture remarkably with the development of superior insect-resistantcrop varieties harboring resistance against insect pests.Bacillus thuringiensis (Bt) has been used as a main source for insect-resistantgenes. In addition to Bt endotoxins, various plant lectins and other non-Bt genes from different sources have also been introduced incrop plants of economic importance. The insect-resistant crops have made a huge economic impact worldwide since their commercialrelease. The cultivation of insect-resistant cultivars has resulted both in increased crop productivity and in decreased environmentalpollution. Although insect-resistant crops have been allowed to be commercialized following proper biosafety guidelines and procedures,still …

Apomixis: New Horizons In Plant Breeding, Nejdet Kandemi̇r, İbrahi̇m Saygili

Turkish Journal of Agriculture and Forestry

Apomixis is seed formation without fertilization, commonly observed in wild plant species. It has the advantages of clonal reproduction and propagation by seeds. Although it has a complex inheritance, genes controlling apomictic reproduction are being identified. Transfer of apomixis to crop species through wide crosses has not been successful so far, but transgenic technology offers a more powerful way to introgress apomixis into crop species. When crop species acquire this trait, superior genotypes, including hybrids, will be fixed and seeds will be multiplied without segregation of superior gene combinations. In addition, it will make hybrid production possible in all crops, …

Modification Of Centromere Structure: A Promising Approach For Haploid Line Production In Plant Breeding, Ahmet Lati̇f Tek, Robert M. Stupar, Kiyotaka Nagaki

Turkish Journal of Agriculture and Forestry

Breeding based on doubled-haploid approaches has recently become a common tool for accelerating crop improvement in many plant species. However, many plant species do not have a reliable method for haploid induction. A promising new approach involving centromere engineering has recently been proposed to overcome this limitation. Here we provide a perspective of this novel method for the production of haploid plants, which was originally described in the model plant species Arabidopsis thaliana. Centromeres, known to be critical for the accurate distribution of chromosomes in every cell division, have now become a novel target for crop improvement by enabling doubled-haploid …

Investigation Of Root-Knot Nematode (Meloidogyne Spp.) Resistance In Almond Rootstocks With Dna Markers, Sultan Bay Türkoğlu, Nergi̇z Çoban, Ali̇ Özkan, Hali̇t Seyfetti̇n Atli, Canan Can

Turkish Journal of Agriculture and Forestry

Seven almond varieties, Ferragnes, Nemaguard, AB3 (Amygdalus orientalis Mill.), GN22, GF677, Myrobalan(Prunus cerasifera),and Pissardi nigra, and F1 crossbreed almonds, Ferragnes × Pissardi nigra, Ferragnes × Myrobalan, Ferragnes × GN22, Nemaguard × GF677, Myrobalan × AB3 (Prunus dulcis Mill.), Myrobalan × Ferragnes, Pissardi nigra × AB3, and GF677 × Myrobalan, were used to determine resistance against root-knot nematode (RKN) (Meloidogyne spp.) using DNA markers. Parental lines and 316 F1 plants were tested with SSR (plgms8, plgms9, and plgms19) and STS (STS-OPS14a, STS-834b) markers. It was found that plgms19 exhibited 76%, 77.01%, 73.13%, and 86.6% inheritance of resistance in the Ferragnes × …

Induction Of Haploid Plants In Iris (Iris Pseudacorus) By Pollen Irradiation, Mohammad Sadat Hosseini Grouh, Naeimeh Sousaraei, Mohammad Akbari, Vahid Rahimi, Hamidreza Bayat

Turkish Journal of Agriculture and Forestry

This is the first report of successful regeneration of haploid lines in iris (Iris pseudacorus) developed by in situ parthenogenesis followed by embryo rescue. Native genotypes of I. pseudacorus (2n = 38) were prepared as female parents and I. spuria was set as the males. Anthers collected from the pollen donor were irradiated by X-ray with doses of 0, 100, 200, 300, and 400 Gy in 2012. A second round of experiments was conducted in 2013 with 300 and 400 Gy. The ovaries from each pollinated flower were collected and cultured and the produced plantlets were then acclimatized. Chromosome counting …

Physiological Variation Of Garry Oak (Quercus Garryana) Seedlings To Drought Stress, Matthew A. Merz

All Master's Theses

The purpose of this study was to determine physiological differences in drought response among Garry oak (Quercus garryana Douglas ex Hook. [Fagaceae]) seedlings that grow in distinct populations in Washington state, in order to aid in restoration efforts by informing growers of the potential differences between the acorn collection sites. Acorns from six Washington populations east of the Cascades, as well as one population from Whidbey Island, were collected and grown in containers under controlled conditions. The plants were assessed with and without moderate and severe drought stress induced by withholding water. The most extreme differences in photosynthetic characteristics …

Provisioning And Its Effects On The Social Interactions Of Tibetan Macaques (Macaca Thibetana) At Mt. Huangshan, China, Brianna I. Schnepel

All Master's Theses

The dispersal patterns of food resources has a significant effect on the composition of primate groups and social interactions within those groups. Humans often alter the dispersal of food. Non-humans often use affiliative behaviors to elicit tolerance or support from other group members. I investigated whether provisioned food resources alter the social interactions and group dynamics of Macaca thibetana. All-occurrence sampling and scan sampling were used for data recorded by camera traps. Trail-cameras were placed at six locations that contain natural and human food resources and recorded 60-second videos. Social behavior and proximity of the monkeys were recorded. I …

Identifying Critical Indicators Of Trail Conditions In High-Use Recreational Areas Of The Roslyn Urban Forest, Jessica Marie Giblin

All Master's Theses

The goal of this research is to identify the types and impacts of recreational activities on formal and informal trails in the Roslyn Urban Forest (RUF), Roslyn, Washington. The RUF has over 8 km (5 miles) of trails that are used by recreationalists (Begley 2008). However, high-impact activities have compacted soils, eroded slopes, and affected animal migration corridors. The City of Roslyn's main management goals are to protect and enhance wildlife habitat and to provide a quality non-motorized recreational experience. Spatial analysis methods were applied to identify, code, and classify the trail network. The data includes biophysical attributes of trails …

Sensitivity Of Soil Evaporation And Reference Evapotranspirationto Climatic Variables In South Korea, Mehmet Aydin, Yeong-Sang Jung, Jae E. Yang, Su-Jung Kim, Kyung-Dae Kim

Turkish Journal of Agriculture and Forestry

The quantification of evapotranspiration and soil evaporation is crucial for agricultural water management. The FAO-56 Penman-Monteith and E-DiGOR models were used to compute reference evapotranspiration (Eto) and bare soil evaporation, respectively, at 17 meteorological stations of South Korea, from 1980 to 2009. The same soil parameters were assumed for all stations in order to compare actual soil evaporation (Ea) rates jointly dominated by atmospheric evaporative demand and soil water availability, as well as the size of rainfall events. The sensitivity of Penman-Monteith type equations to the major climatic variables was determined based on 1-year dataset. The long-term mean annual precipitation …