Forest Sciences Commons^™

Plant Growth-Promoting Bacteria Improve Triticum Aestivum L. Growth And Photosynthetic Activity In Sulfonamide-Contaminated Soil, Ammara Saleem, Asma Zulfiqar, Soha A. Alamoudi, Mada F. Ashkan, Eman Alhomaidi

Turkish Journal of Agriculture and Forestry

Antibiotics are disseminated by grazing animals or their feces throughout agricultural areas. These antibiotics, as environmental pollutants, have a negative impact on plant growth and physiology. Sulfonamides are frequently used to protect livestock production, but they also have a considerable negative impact on plant growth and rhizospheric bacteria. Plants are sensitive to their surroundings, and they employ their internal biological systems to deal with the threats to their growth and development. Soil microbes, which are the most common inhabitants, have amazing metabolic capacities that enable them to overcome abiotic constraints. The effects of sulfonamide stress on wheat cultivar Chakwal-50 were …

Analysis Of Photosynthetic Adaptability And Shade Tolerance Of Lianas In Riverside, Dongdong Cao, Guangwei Feng

Turkish Journal of Agriculture and Forestry

This investigation aimed to study the photosynthetic adaptability and shade tolerance of liana in riverside green space. For this purpose, the illumination intensity gradient is set to 2000, 1800, 1500, 1200, 1000, 800, 600, 400, 200, 100, 0 μmol·m^-2·s^-1, and the corresponding net photosynthetic rate (Pn) value is determined. After the data on the photosynthetic tester is stable, read the value and repeat the measurement 3 times for each gradient; Net photosynthetic rate (Pn), transpiration rate (Tr), stomatal conductance (Cond), and intercellular CO2 concentration (Ci) were measured. Instantaneous water use efficiency (WUE) was calculated by Pn/Tr; …

Graphene Oxide: A Promising Material For The Germination Of Melon Seeds Under Salinity Stress, Haluk Çağlar Kaymak, Meli̇ke Sevi̇m, Önder Meti̇n

Turkish Journal of Agriculture and Forestry

It is well-known that salinity is an important adverse environmental factor (abiotic stresses) that limits plant growth, development, and productivity all over the world. Herein, we report for the first time the use of graphene oxide (GO) as a promising material against the salinity stress using melon (Cucumis melo L.) seeds as the model crop. GO as a priming material possesses various advantages such as being highly water-soluble, nontoxic, producible on a large scale from graphite, and low-cost over the existing materials. In this study, we identified the effect of different GO doses (0, 0.25, 0.50, 0.75, and 1.0 mg/mL) …

Amino Acids Application Alleviated Salinity Stress In Spinach (Spinacia Oleracea L.) By Improving Oxidative Defense, Osmolyte Accumulation, And Nutrient Balance, Maham Saddique, Abida Kausar, Iqra Iqra, Noreen Akhter, Nazoora Mujahid, Abida Parveen, Qamar Zaman, Saddam Hussain

Turkish Journal of Agriculture and Forestry

Salinity is affecting more than 6 million hectares of cultivated area in Pakistan. The use of amino acids offers a pragmatic solution for minimizing the adverse effects of salinity on Spinacia oleracea L. (spinach). The present study evaluated the possible potential of amino acids in enhancing the salinity tolerance in spinach and identified the probable underlying mechanisms. The experiment comprised of two factors viz. amino acids with total of seven treatments; control, salinity (sal) 100 mM, Methionine + sal, Phenylalanine + sal, Proline + sal, Tyrosine + sal, Combined amino acids + sal, and two spinach cultivars (Desi Palak and …

Herbicide Resistance In Avena Sterilis Subsp Ludoviciana Populations From The Wheat Fields Of Turkey, Süleyman Gürdal Türkseven, Ahmet Uludağ, Mehmet Demi̇rci̇, Ahmet Tansel Seri̇m

Turkish Journal of Agriculture and Forestry

Avena sterilis L. subsp ludoviciana (Durieu) Gillet and Magne (AVELU) is among the most common and economically important grass weed species, especially in wheat fields of Turkey; therefore, the herbicides with the same mode of action (ACCase and ALS/AHAS inhibitors) are used to control have been successively applied without incessant by farmers. A study was conducted to find out the extent of wild oat problems throughout Turkey including herbicide resistance. This paper includes results of determining the herbicide resistance status of AVELU populations to ACCase and ALS inhibitors that are fenoxaprop (Fen), pinoxaden (Pin), tralkoxydim (Tra), mesosulfuron+iodosulfuron (MeI), and proxycarbazone+mesosulfuron …

Development Of Dna Markers Associated With Sunburn Resistance In Pomegranate (Punica Granatum L.) Using Bulk Segregant Analysis, Kezi̇ban Yazici, Mehtap Şahi̇n Çevi̇k

Turkish Journal of Agriculture and Forestry

Production and consumption of pomegranate have been increasing in the world in recent years due to its health benefits to humans. Sunburn is an important physiological disorder caused by high temperature, light, and radiation. With the changes in climatic conditions that have occurred in recent years, the effect of sunburn is increasing and limiting the production and quality of pomegranate. Therefore, development of pomegranate cultivars resistance to sunburn is one of the main objectives of pomegranate breeding program. However, the development of a new variety takes a very long time. In order to shorten this time, molecular markers have been …

Photoperiod And Temperature Sensitivity In Early Soybean Accessions From The Vir Collection In Leningrad Province Of The Russian Federation, Liubov Novikova, Irina Seferova, Inna Matvienko, Zoya Shchedrina, Margarita Vishnyakova

Turkish Journal of Agriculture and Forestry

The photoperiod and temperature sensitivity of the onset of flowering in 106 soybean accessions from the VIR collection has been studied for 8 years in a vegetation experiment in the conditions of Leningrad Province at 59°N, the northernmost point of soybean evaluation in the world. The accessions were previously field-assessed for the ability to form fully developed seeds in this region. The experimental conditions were extreme for soybean in terms of both photoperiod and heat supply. The emergence to flowering period length (L_EF) in the sample set was 7.9 days longer, and the sum of the temperatures required …

Maud Gordon Holmes Arboretum List Of Tree Species, Chloe Mokadam

Maud Gordon Holmes Arboretum database

Maud Gordon Holmes Arboretum database of Tree Species.

Public Procurement Practices And Policies: Implications For Public Research And Development In The Philippines, Nelson Jose Vincent B. Querijero, Rhea L. Gumasing, Arlene C. Gutierrez, Ruth Anne T. Ruelos, Charina Krissel D. Tingson

Journal of Public Affairs and Development

This study examines procurement practices and policies that hinder or facilitate public research and development. An online survey and interviews with key informants in 44 research development institutions (RDIs) in the Philippines were conducted. Participants include Project Leaders, members of the Bids and Awards Committee (BAC), the BAC secretariat, chief accountants, technical working groups, and suppliers. The results show that some procurement policies, workflows, and capacities of the procuring entities contribute to procurement delays. A lack of qualified or suitable suppliers and a limited market of highly specialized and scientific equipment are also factors affecting procurement efficiency. It is recommended …

Intellectual Capital To Support Goat Farming Profitability In A Rural Area Of Banjarnegara Regency, Indonesia, Mochamad Sugiarto, Yusmi Nur Wakhidati, Siwi Gayatri, John Enorio M. Perez

Journal of Public Affairs and Development

Goat farming in Banjarnegara Regency, Indonesia has become a driver of the rural economy.　 Banjarnegara Regency, Indonesia has become a driver of the rural economy. Banjarnegara is a mountainous area which is divided into three agroecological zones, namely highland, middle land, and lowland. The research was conducted to　(1) identify the levels of goat farmers’　intellectual capital and goat farming profitability; and (2) analyze the relationship between goat farmers’ intellectual capital and goat farming profitability. A multistage sampling method was conducted to collect data from 180 goat farmers. The research on goat farmers’ intellectual capital was conducted using interviews and …

A Comparison Of Wildfire Adaptive Traits In Juvenile Conifers Of The Northern Rockies, Andie Sonnen

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Wildfire is an importance disturbance that continues to shape the ecosystems of the northern Rockies through varying patterns of frequency and intensity. Due to historical fire suppression and the hotter and drier conditions brought upon by anthropogenic climate change, wildfire frequency and intensity is increasing. These increases will alter vegetation structure and composition, but the degree to which is unknown.

Individual plant traits can offer insight into how these vegetation communities will shift, especially the particular traits that reduce fire-related mortality. To survive wildfires, juvenile northern conifers employ two strategies: increasing their bark thickness and increasing their crown height. To …

Eastern Redcedar (Juniperus Virginiana L.) Encroachment On South-Central South Dakota Rangelands: Impact On Plant Communities, Austin K. Domeier

Electronic Theses and Dissertations

Grasslands historically covered 46 million km2 of Earth’s surface representing nearly 42% of the living vegetation. Encroachment of woody species onto grasslands and savannas is a widely researched global phenomenon, with eastern redcedar (ERC) (Juniperus virginiana L.) trees being the most prominent woody encroacher in the Northern Great Plains (NGP) due to the lack of prescribed fire and planted ERC escaping from shelterbelts. This encroachment poses a threat to native plant communities in terms of their reproduction, regeneration, and diversity. ERC are fierce competitors and can establish in most soil types, are drought tolerant, and prolific seed reproducers. These qualities …

Effects Of Buried Wood On The Development Of Populus Tremuloides On Various Oil Sands Reclamation Soils, Kaitlyn E. Trepanier, Laura Manchola-Rojas, Bradley D. Pinno

Aspen Bibliography

Buried wood is an important but understudied component of reclamation soils. We examined the impacts of buried wood amounts and species on the growth of the common reclamation tree species trembling aspen (Populus tremuloides). In a greenhouse study, aspen seedlings were planted into four soil types, upland derived fine forest floor-mineral mix (fFFMM), coarse forest floor-mineral mix (cFFMM), and lowland derived peat and peat-mineral mix (PMM), that were mixed with either aspen or pine wood shavings at four concentrations (0%, 10%, 20% and 50% of total volume). Height and diameter growth, chlorophyll concentration, and leaf and stem biomass were measured. …

Borrowed Capital And Factors Affecting Its Utilization Among Rice Farmers In The Province Of Albay, Philippines, Elmer A. Lorenzana

Journal of Public Affairs and Development

Agricultural credit programs provide opportunities for farmers to acquire the necessary farm inputs and apply appropriate technologies. However, it remains a challenge for farmers to use the credit for what it was intended for. This study aimed to measure the factors affecting the utilization of borrowed capital of 233 randomly selected rice farmers from the province of Albay using binary logit as its analytical procedure. The factors influencing the utilization of borrowed capital are the type of the optimization behavior of the farmers, sex, family size, and farm size. The output maximizers and the male farmers have a higher probability …

Transformation Of Farmer Resistance In Conservation Areas: Land Occupation By Farmers In Mount Halimun-Salak National Park, West Java, Sulastri Sardjo, Arya Hadi Dharmawan, Dudung Darusman, Ekawati Sri Wahyuni

Masyarakat: Jurnal Sosiologi

A number of studies have shown various agrarian conflicts as a response by local farmers against the policy of national parks that prohibits them from accessing conservation forest areas. However, previous studies had not explained the dynamics of power relations between park authorities and farmers who stand in opposition to these policies. This study employs a qualitative research approach complemented by secondary data to explain the transformation of farmer resistance in the Mount Halimun-Salak National Park (TNGHS) area, namely from their repertoire of everyday resistance to practices of land occupation. Specifically, this study uses the “powercube” analytical framework to explain …

Policy Option To Address Low Rice Seed Technology Adoption Of Farmers In Sariaya, Quezon, Philippines, Meljun R. Banogon, Leilanie O. Barrion, Imelda Dg. Olvida, Ma. Theresa R. Sawit

Journal of Public Affairs and Development

The importance of access to and the proper utilization of technology in improving farm productivity is widely recognized. For this reason, many interventions focus on the development and promotion of farm technologies in rural areas. Sariaya, Quezon is one of the recipients of the programs of the Department of Agriculture (DA), particularly the Bayanihan Agri Clusters (BACs), the Rice Competitiveness Enhancement Fund (RCEF), and the Rice Business Innovations Community Program (RiceBIS). While these programs are being implemented, the adoption of certified seeds technology in the community remains low. Policy Delphi technique was employed to formulate policy outcome forecast, issue statement, …

Timber Talk, Vol. 60, No. 3, September 2022

Timber Talk: Nebraska Forest Industry Newsletter

Timber Talk, Vol. 60, No. 3, September 2022

Physiological Functioning And Productivity In Eastern Cottonwood And Hybrid Poplars On Contrasting Sites In The Southeastern Us, Heidi Renninger

CFR Publications

No abstract provided.

Changes In Bark Properties And Hydrology Following Prescribed Fire, Courtney Siegert, Anna Ilek, Adam Wade

CFR Publications

No abstract provided.

Using Hyperspectral Leaf Reflectance To Estimate The Photosynthetic Capacity And Nitrogen Content Across Eastern Cottonwood And Hybrid Poplar Genotypes, Thu Ya Kyaw, Courtney M. Siegert, Padmanava Dash, Krishna P. Poudel, Justin J. Pitts, Heidi J. Renninger

CFR Publications

No abstract provided.

Evaluating The Effects Of Tree Community Species Composition On Larix Occidentalis Growth, Christian M. Mercado

Graduate Student Theses, Dissertations, & Professional Papers

Western larch (Larix occidentalis) is an important tree species exclusive to the inland northwest region of North America. It is very intolerant of shade but managed across a range of communities with both shade-tolerant and -intolerant species. Recent works have shown that tree and stand level competition in mixed-species communities can be modified depending on how the characteristics of species in a mixture interact. Such changes can alter the growth relationship of the participant species. Western larch growth has been well-characterized in empirical growth models, where growth is typically estimated from a complex of size, competition, density, and …

The Role Of Edge Effects On Emerald Ash Borer Infestation And Forest Responses, Bronte Hoefer

Undergraduate Honors Theses

The emerald ash borer (EAB; Agrilus planipennis) is a buprestid beetle native to Asia, classified as an invasive species in North America. EAB infests trees of genus Fraxinus (ash) and has spread to 35 states since its introduction in the early to mid-1990s. Notably, EAB has the potential to functionally extirpate all native ash species in North America. Our study aims to characterize the ecological impacts of EAB infestation in the Roanoke Valley of Southwest Virginia, to quantify the impact of edge effects on EAB forest invasion and mortality of ash trees, as well as investigate the role that …

Safety In The Woods: Studying The Effectiveness Of The Kentucky Master Logger Program, Austin Winn Leake

Theses and Dissertations--Community & Leadership Development

Logging is a dangerous field; in this study the researcher looks to see the knowledge both before and after professional loggers participate in the Kentucky Master Logger Program. This information was used to see the overall effectiveness of the Kentucky Master Logger Program. The researcher found an overall improvement in logging professionals’ perceptions and understanding of logging safety. The researcher recommends creating an emphasis on a safe work culture through safety incentives and a greater focus on less used personal protective equipment such as insecticide

Eight-Year Regeneration Response To Gap-Based Irregular Shelterwood Practices In Oak Dominated Stands Near Berea, Kentucky, Brooke Elizabeth Gauthier

Theses and Dissertations--Forestry and Natural Resources

This research examined regeneration dynamics following gap-based irregular shelterwood practices in intermediate productivity oak (Quercus)-dominated stands located in Berea College Forest, Berea, KY, USA. Established in 2012, the study includes 12 experiment units comprising a circular harvest gap (30 m radius) and a matrix zone delineated around the circumference of the gap, which extended 30 m from the gap edge into the adjacent forest. A midstory removal treatment was performed within six of the experiment units’ matrices, while six matrices were left untreated (control). Belt transects extending 60 m from gap center to the end of the matrix zone were …

Bat Activity On West Virginia Mined Lands Restored Via The Forestry Reclamation Approach, Briana C. Snyder

Theses and Dissertations--Forestry and Natural Resources

The Forestry Reclamation Approach (FRA) is a practical guide to reforesting surface mined lands. Bats, as a unique group of species with declining populations, could benefit from this reforestation. In order to determine if the FRA is providing suitable bat foraging habitat, I surveyed bat activity at created depressional wetlands on 1-year old and 8-year old FRA restored lands (FRA1; FRA8), as well as at naturally formed wetlands in regenerating forest on traditionally reclaimed mined land (~40 years old; REGEN) and wetlands in mature forest not previously mined (MAT). I passively recorded echolocation calls for 12 nights across sixteen sites …

Rna Interference For Emerald Ash Borer Suppression: Ecotoxicological Assessment And Delivery Methods, Flavia Pampolini

Theses and Dissertations--Entomology

The emerald ash borer (EAB), Agrilus planipennis (Coleoptera: Buprestidae), is a highly invasive phloem-feeding insect native to Asia. It has killed millions of ash trees (Fraxinus spp.) since its accidental introduction into North America, causing profound economic and ecological impacts. RNA interference (RNAi) or double-stranded RNA (dsRNA)-mediated gene silencing is an emerging biotechnology that is developing as an innovative tool for pest management. Exogenous dsRNA triggers the RNAi pathway, silences genes, and disrupts protein function, causing insect mortality. RNAi has proven effective in reducing target gene expression and causing mortality in EAB; however, two aspects stand as barriers …

Callery Pear Removal Experiment: Trees-Intact (Medlar Conservation Area), Margaret E. Maloney, Eric B. Borth, Grace Dietsch, Mary C. Lloyd, Ryan W. Mcewan

Five Rivers MetroParks Collaboration Data Archive

The invasive tree Callery pear (Pyrus calleryana) is problematic in open habitats in the American Midwest. We investigated the efficacy of various control techniques on P. calleryana invasion in grasslands. Treatments were applied to P. calleryana stems that were single-stemmed trees (around 7 years; n = 40 stems), and response of those stems was measured.

Callery Pear Removal Experiment: Trees-Sprouting (Stillwater Conservation Area), Margaret E. Maloney, Eric B. Borth, Grace Dietsch, Mary C. Lloyd, Ryan W. Mcewan

Five Rivers MetroParks Collaboration Data Archive

The invasive tree Callery pear (Pyrus calleryana) is problematic in open habitats in the American Midwest. We investigated the efficacy of various control techniques on P. calleryana invasion in grasslands. Treatments were applied to P. calleryana stems that had experienced mowing annually for several years and were sprouting (n = 100 stems) and response of those stems was measured.

Geospatial Data Permanent Plot, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files for Old-Growth Deciduous Forest Dynamics Archive: Hueston Woods

Permanent plot GIS shapefile that measures 100m x 105m and consists of 420 contiguous 5m x 5m subplots. There are 21 transects that run from south to north and 20 subplots per transect that run east to west. This downloadable data is a zipped file containing 8 shapefile building blocks. Geographic Coordinate System: GCS_North_American_1983. Projected Coordinate System: NAD_1983_StatePlane_Ohio_South_FIPS_3402 (meters).

Field Maps 2022, Grace K. Attea, Ryan W. Mcewan, John L. Vankat

Data Files for Old-Growth Deciduous Forest Dynamics Archive: Hueston Woods

Historical field map scans (2022) for the permanent 100m x 105m research plot in Hueston Woods State Nature Preserve.