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Articles 181 - 210 of 2824

Full-Text Articles in Agriculture

Changing Fire Regimes In The Great Basin Usa, Eva K. Strand, Kori Blankenship, Corey Gucker, Mark Brunson, Eugénie Montblanc Feb 2025

Changing Fire Regimes In The Great Basin Usa, Eva K. Strand, Kori Blankenship, Corey Gucker, Mark Brunson, Eugénie Montblanc

Aspen Bibliography

Wildfire is a natural disturbance in landscapes of the Western United States, but the effects and extents of fire are changing. Differences between historical and contemporary fire regimes can help identify reasons for observed changes in landscape composition. People living and working in the Great Basin, USA, are observing altered fire conditions, but spatial information about the degree and direction of change and departure from historical fire regimes is lacking. This study estimates how fire regimes have changed in the major Great Basin vegetation types over the past 60 years with comparisons to historical (pre-1900) fire regimes. We explore potential …


Drought Resilience And Legacy Effects In Two Forest Tree Species On Loess Plateau Of China: Growth And Water-Use Efficiency Under Different Drought Conditions, Lu Han, J. Julio Camarero, Guodong Jia, Zhiqiang Zhang, Lixin Chen Feb 2025

Drought Resilience And Legacy Effects In Two Forest Tree Species On Loess Plateau Of China: Growth And Water-Use Efficiency Under Different Drought Conditions, Lu Han, J. Julio Camarero, Guodong Jia, Zhiqiang Zhang, Lixin Chen

Aspen Bibliography

As droughts become more frequent and severer, understanding tree resilience and its role in mediating drought legacy effects (LEs) is critical for predicting forest ecosystem responses to future droughts and informing forest management. Both Pinus tabuliformis and Populus davidiana are widely distributed in the Loess Plateau region of western China and play important roles in provision of ecosystem services. In this study we quantified the LEs and resilience, including resistance (Rt) and recovery (Rc), of radial growth (BAI, basal area increment) and intrinsic water use efficiency (iWUE) of the two species, determined the external and internal factors influencing Rt and …


Impact Of Particle Size On Physical And Functional Characteristics Of Baby Corn Powder, Ubaida Akbar, Prasad Rasane, Md Sabir Ahmed Mondol, Jyoti Singh, Vikas Nanda, Hasan Kiliçgün, Sawinder Kaur Feb 2025

Impact Of Particle Size On Physical And Functional Characteristics Of Baby Corn Powder, Ubaida Akbar, Prasad Rasane, Md Sabir Ahmed Mondol, Jyoti Singh, Vikas Nanda, Hasan Kiliçgün, Sawinder Kaur

Turkish Journal of Agriculture and Forestry

This study’s objective is to explore the influence of particle size on the characteristics and functionalities of baby corn powder. In food product development and application, particle properties are crucial. Sieve analysis using a series of standardized sieves determined the particle size distribution, ranging from >500 µm to 53 µm. The particles exhibited stability, with an average size of 208.8 nm, a polydispersity index of 0.133, and a zeta potential of –20 mV. Bulk density (BD) and true density (TD) showed an inverse relationship with particle size, with BD ranging from 0.552 to 0.238 gcm–3 for particle sizes >500 to …


Mapping Of Qtls Associated With Frost Tolerance In Olive (Olea Europaea L.), Öznur Çeti̇n, Nurengi̇n Mete, Handan Ölmez, Hati̇ce Gülen Feb 2025

Mapping Of Qtls Associated With Frost Tolerance In Olive (Olea Europaea L.), Öznur Çeti̇n, Nurengi̇n Mete, Handan Ölmez, Hati̇ce Gülen

Turkish Journal of Agriculture and Forestry

The olive (Olea europaea L.) is widely distributed due to its high adaptability to different environmental conditions. However,in recent years, sudden extreme temperature decreases and frost damage have caused significant yield and quality losses in some regions.This situation has led to the development of varieties with high frost tolerance, suitable for regions where cold damage may occur.It takes many years to develop varieties using classical breeding methods in olives. Therefore, early selection should be made usingbiotechnological methods. Markers about any trait provide a great advantage, especially in plant species with a very long juvenile sterilityperiod, as they allow for a …


The Role Of Brassinosteroids In Plant Physiological And Molecular Responses To Counter Salt Stress And Ensure Food Security: A Review And Future Perspectives, Muhammad Umair Hassan, Huang Guoqin, Muhammad Nawaz, Adnan Noor Shah, Tahir Abbas Khan, Muhammad Inzamam Ul Haq, Mehmood Ali Noor, Zhou Ping, Liu Qin, Yasser S. Mostafa, Saad A. Alamri, Melekber Sülüşoğlu Durul, Mehmet Ramazan Bozhüyük, Mohamed Hashem Feb 2025

The Role Of Brassinosteroids In Plant Physiological And Molecular Responses To Counter Salt Stress And Ensure Food Security: A Review And Future Perspectives, Muhammad Umair Hassan, Huang Guoqin, Muhammad Nawaz, Adnan Noor Shah, Tahir Abbas Khan, Muhammad Inzamam Ul Haq, Mehmood Ali Noor, Zhou Ping, Liu Qin, Yasser S. Mostafa, Saad A. Alamri, Melekber Sülüşoğlu Durul, Mehmet Ramazan Bozhüyük, Mohamed Hashem

Turkish Journal of Agriculture and Forestry

Excessive salinity poses serious threats to crop productivity and global food security. Salt stress reduces crop growth and final productivity by inducing ionic, osmotic, and oxidative damage. Applying plant growth hormones is thought to be an efficient method of reducing the negative effects of salinity. Brassinosteroids (BRs) are plant hormones that have demonstrated appreciable effects against different abiotic stresses. BRs can mitigate the deleterious impacts of salt stress by improving water and nutrient uptake, membrane stability, antioxidant activities, and osmolyte synthesis while maintaining the hormonal balance. Furthermore, BRs can also improve the metabolic and molecular responses of plants to help …


Chemical Composition And Larvicidal Toxicity Of Ricinus Communis L. (Euphorbiaceae) Extracts Against Larvae Of Thaumetopoea Pityocampa (Denis & Schiffermüller, 1775) (Lepidoptera: Notodontidae), Memi̇ş Kesdek, Şaban Kordali, Selçuk Küçükaydin Feb 2025

Chemical Composition And Larvicidal Toxicity Of Ricinus Communis L. (Euphorbiaceae) Extracts Against Larvae Of Thaumetopoea Pityocampa (Denis & Schiffermüller, 1775) (Lepidoptera: Notodontidae), Memi̇ş Kesdek, Şaban Kordali, Selçuk Küçükaydin

Turkish Journal of Agriculture and Forestry

In this study, the toxicities of extracts obtained from the seeds and leaves of castor bean (Ricinus communis L.) (Euphorbiaceae) plant against five larval stages of the pine processionary moth (PPM) (Thaumetopoea pityocampa (Denis & Schiffermüller, 1775) (Lepidoptera: Notodontidae)) were investigated under laboratory conditions. Petroleum ether, acetone, and methanol extracts were prepared at various concentrations (0.25, 0.5, and 1 mg/mL) and sprayed on each larval stage. Each test was performed with three replications and two repetitions. Sterile water + ethanol was used as a negative control and the commercial chemical Kormilin 25 WP (25% diflubenzuron) was used as a positive …


Identification And Functional Characterization Of The Icse1 Gene From Ilex Cornuta, Xiaoxi Zhang, Li Zhu, Weiwei Zhang, Feng Xu, Jiabao Ye, Yongling Liao Feb 2025

Identification And Functional Characterization Of The Icse1 Gene From Ilex Cornuta, Xiaoxi Zhang, Li Zhu, Weiwei Zhang, Feng Xu, Jiabao Ye, Yongling Liao

Turkish Journal of Agriculture and Forestry

Ilex cornuta (I. cornuta) is a traditional Chinese medicine that is rich in various secondary metabolites with pharmacological activities, among which triterpenoid saponins are one of the main active components. Squalene epoxidase (SE) is a key regulatory enzyme in the biosynthesis of triterpenoids. In this study, we isolated a squalene epoxidase (IcSE1) from I. cornuta and analyzed its molecular characteristics and functions. The results indicated that the total length of the IcSE1 sequence was 1942 bp, which includes a 1638 bp open reading frame (ORF) that encodes 545 amino acids. The theoretical isoelectric point (pI) and molecular weight of the …


A Genome-Wide Association Study To Detect Candidate Genes Controlling Iron And Manganese Accumulation In Walnut (Juglans Regia L.), Özge Doğanay, Erdal Orman, Bülent Yağmur, Muhammed Bahatti̇n Tanyolaç, Duygu Ateş Feb 2025

A Genome-Wide Association Study To Detect Candidate Genes Controlling Iron And Manganese Accumulation In Walnut (Juglans Regia L.), Özge Doğanay, Erdal Orman, Bülent Yağmur, Muhammed Bahatti̇n Tanyolaç, Duygu Ateş

Turkish Journal of Agriculture and Forestry

The walnut is one of the important low-glycemic sources of vegetable protein that benefit human health. Iron (Fe) and Manganese (Mn) are two of the walnut’s important nutritional components. This study aimed to identify single-nucleotide polymorphism (SNP) markers associated with the concentrations of Mn and Fe in walnut kernels and the genetic variation in these concentrations. The population was evaluated for two different years using 154 walnut genotypes and genotyping was performed with 16,473 SNP markers. A genome-wide association study was performed on 154 genotypes. A total of five and 15 SNPs were identified in different walnut genotypes, which were …


Phytochemical Analysis And In Vitro And In Vivo Pharmacological Activities Of Cordia Myxa Extracts, Tatheer Fatima, Mirza Imran Shahzad, Adnan Noor Shah, Zhang Yi, Bushra Gillani, Iqra Hussain, Adina Gillani, Zeli̇ha Çi̇ftçi̇, Marcello Locatelli, Ashraf Atef Hatamleh, Munirah Abdullah Al-Dosary Feb 2025

Phytochemical Analysis And In Vitro And In Vivo Pharmacological Activities Of Cordia Myxa Extracts, Tatheer Fatima, Mirza Imran Shahzad, Adnan Noor Shah, Zhang Yi, Bushra Gillani, Iqra Hussain, Adina Gillani, Zeli̇ha Çi̇ftçi̇, Marcello Locatelli, Ashraf Atef Hatamleh, Munirah Abdullah Al-Dosary

Turkish Journal of Agriculture and Forestry

Cordia myxa is found in tropical regions of Pakistan, where it is commonly known as lasura. This study aimed to assess the preliminary results of phytochemical analysis and the pharmacological activities of C. myxa. After pulverizing the fresh plant, extracts were prepared using different solvents, including aqueous, methanol, ethanol, dichloromethane, ethyl acetate, and n-hexane extracts. These extracts were examined for total phenolic contents using standard biochemical tests and high performance liquid chromatography with a photodiode array. In further evaluations, antioxidant, antibacterial, antiviral, hen’s egg test on chorioallantoic membrane (HETCAM) assay, antipyretic, antiinflammatory, and antidiabetic activities were monitored. Using ferric reducing …


Bioactive Content And Antioxidant Capacity Of Some Plants And Fruits Grown In Türkiye, Gülay Özkan, Fatma Betül Sakarya, Bayram Yurt, Elwira Sieniawska, Yakup Yapar, Esra Çapanoğlu Güven Feb 2025

Bioactive Content And Antioxidant Capacity Of Some Plants And Fruits Grown In Türkiye, Gülay Özkan, Fatma Betül Sakarya, Bayram Yurt, Elwira Sieniawska, Yakup Yapar, Esra Çapanoğlu Güven

Turkish Journal of Agriculture and Forestry

Recently, some edible plants and fruits have undergone extensive research to identify potential health effects arising from their valuable nutritional and bioactive properties. The present study aims to investigate the phenolic compounds of nine edible plants and fruits throughout the gastrointestinal digestion model by comparing their total content and antioxidant activity. Of the species studied, Eremurus spectabilis and Gundelia tournefortii had the lowest total phenolic content, whereas Prunus armeniaca showed the highest value of 1026 ± 164 mg GAE/100 g. Except for Prunus armeniaca , the total phenolic contents of all samples were increased following gastric digestion, while the total …


Exploring Genetic Diversity: The Inheritance Of Protein And Mineral Contents In Dwarf Common Beans, Ercan Ceyhan, Ayşegül Korkmaz, Amjad Ali̇, Serdar Karadaş, Mustafa Harmankaya, Duran Şi̇mşek, Tolga Karaköy Feb 2025

Exploring Genetic Diversity: The Inheritance Of Protein And Mineral Contents In Dwarf Common Beans, Ercan Ceyhan, Ayşegül Korkmaz, Amjad Ali̇, Serdar Karadaş, Mustafa Harmankaya, Duran Şi̇mşek, Tolga Karaköy

Turkish Journal of Agriculture and Forestry

Beans are a vital plant-based protein, containing essential minerals that are necessary for human health. Their protein and mineral compositions vary due to factors including cultivar or variety, growth conditions, and processing methods. Global deficiencies in protein and minerals necessitate fortification, supplementation, and dietary diversification. The present study focuses on common bean (Phaseolus vulgaris) cultivars, aiming to understand their genetic variation and inheritance of protein and mineral contents. Five dwarf common bean cultivars (Lida, Beyzade, Ribera, Albeni, and Garrafol) were used in a full-diallel hybridization method and the experiment was conducted in Konya, Türkiye. The diallel analysis assessed both general …


Molecular Screening Of Septoria-Resistant Genes In Historical Turkish Bread Wheat Germplasm Using The Validated Gene Specific Ssr Markers, Amjad Ali, Fati̇h Ölmez, Muhammed Tatar, Parnaz Mortazavi, Muhammad Tanveer Altaf, Emi̇ne Burcu Turgay, Hüsnü Aktaş, Muhammad Azhar Nadeem, Jazib Javed, Jin-Ying Gou, Muhammad Aasim, Abdelfattah A. Dababat, Faheem Shehzad Baloch Feb 2025

Molecular Screening Of Septoria-Resistant Genes In Historical Turkish Bread Wheat Germplasm Using The Validated Gene Specific Ssr Markers, Amjad Ali, Fati̇h Ölmez, Muhammed Tatar, Parnaz Mortazavi, Muhammad Tanveer Altaf, Emi̇ne Burcu Turgay, Hüsnü Aktaş, Muhammad Azhar Nadeem, Jazib Javed, Jin-Ying Gou, Muhammad Aasim, Abdelfattah A. Dababat, Faheem Shehzad Baloch

Turkish Journal of Agriculture and Forestry

Septoria tritici blotch (STB), caused by Zymoseptoria tritici, poses a significant threat to global wheat production, particularly in Türkiye. Resistance breeding is the most sustainable and effective disease control method. Molecular markers, especially simple sequence repeat (SSR) markers are extensively employed in wheat breeding to enhance the efficacy. The primary objective of this study was to identify Stb resistance genes among 143 historical registered Turkish bread wheat genotypes released as commercial cultivars between 1963 to 2014, using 16 closely linked SSR markers. The findings revealed substantial genetic variation among the screened cultivars, with the Stb3 gene being the most prevalent, …


Enhancing Salt Tolerance And Yield Potential In Cotton: Insights From Physiological Responses, Genetic Variability, And Heterosis, Muhammad Mubashar Zafar, Abdul Razzaq, Zunaira Anwar, Aqsa Ijaz, Muhammad Zahid, Muhammad Shahid Iqbal, Ghulam Farid, Mahmoud F. Seleiman, Rana Qammar Uz Zaman, Abdur Rauf, Xuefei Jiang Feb 2025

Enhancing Salt Tolerance And Yield Potential In Cotton: Insights From Physiological Responses, Genetic Variability, And Heterosis, Muhammad Mubashar Zafar, Abdul Razzaq, Zunaira Anwar, Aqsa Ijaz, Muhammad Zahid, Muhammad Shahid Iqbal, Ghulam Farid, Mahmoud F. Seleiman, Rana Qammar Uz Zaman, Abdur Rauf, Xuefei Jiang

Turkish Journal of Agriculture and Forestry

Soil salinity is a growing global concern, necessitating the development of salt-tolerant cotton cultivars to enhance the utilization of salt-affected soils and boost crop productivity. Salt tolerance is regulated by a complex interplay of genetic and physiological factors involving multiple genes. To investigate the genetic basis of salt stress tolerance, eight parental genotypes (four lines and four testers) and their 16 hybrid combinations were evaluated under normal and salt stress conditions (15 dS m⁻¹). Data were collected on various traits including the plant height (PH), number of bolls per plant (NBP), boll weight (BW), lint percentage (LP), seed cotton yield …


Nutritional And Microbiological Properties Of Cheese With Dried Elderberry And Red Grape Pomace, Andreea Dodan, Romina Alina Marc, Crina Carmen Mureşan, Carmen Rodica Pop, Delia Michiu, Miuța Rafila Filip, Roxana Nicoleta Rațu, Florina Stoica, Ioana Cristina Crivei, Alina Narcisa Postolache, Melinda Kovacs, Rodica Maria Sima, Mircea Valentin Muntean Feb 2025

Nutritional And Microbiological Properties Of Cheese With Dried Elderberry And Red Grape Pomace, Andreea Dodan, Romina Alina Marc, Crina Carmen Mureşan, Carmen Rodica Pop, Delia Michiu, Miuța Rafila Filip, Roxana Nicoleta Rațu, Florina Stoica, Ioana Cristina Crivei, Alina Narcisa Postolache, Melinda Kovacs, Rodica Maria Sima, Mircea Valentin Muntean

Turkish Journal of Agriculture and Forestry

This study aimed to explore the use of grape byproducts such as red grape pomace and elderberry, in the form of bioactive powders to obtain three-month old cheese assortments. Grape pomace powder (GPP) and elderberry fruit powder (EFP) contain antioxidant components such as phenols, anthocyanins and flavonoids, and compounds characterized by high bioactivity. This study investigated not only the potential of incorporating different percentages (1%, 2%, and 3%) of GPP and EFP in cheese, to increase its nutritional value, but also the changes that occur during the 2 months of ripening. The results indicated that the incorporation of GPP and …


Transcriptome And Metabolome Analysis Of Low-Temperature Storage On Fruit Quality Deterioration Of Mangoes, Hanqing Cong, Ting Huo, Xinran Huang, Yeyuan Chen, Yibo Bai, Haiyan Luo, Xiaona Fu, Rongxiang Wang, Mahmoud F. Seleiman, Tanweer Ahmad, Pingyin Guan, Mohsin Bashir, Muhammad Asif, Fei Qiao Feb 2025

Transcriptome And Metabolome Analysis Of Low-Temperature Storage On Fruit Quality Deterioration Of Mangoes, Hanqing Cong, Ting Huo, Xinran Huang, Yeyuan Chen, Yibo Bai, Haiyan Luo, Xiaona Fu, Rongxiang Wang, Mahmoud F. Seleiman, Tanweer Ahmad, Pingyin Guan, Mohsin Bashir, Muhammad Asif, Fei Qiao

Turkish Journal of Agriculture and Forestry

Mango, a typical respiratory climacteric fruit, is susceptible to a short shelf life and quality deterioration during postharvest ripening. Although low temperature can prolong the storage time significantly, its effects on fruit quality have yet to be elucidated. Through a combination of transcriptome and metabolome analyses, this study aimed to elucidate the effects of low-temperature storage on the biosynthesis of volatile organic compounds (VOCs), flavonoids, sucrose, and the degradation of organic acids in mango. Carbohydrate-related metabolism maintained high activity when stored at 13 °C by upregulating the expression of certain gene members in the neutral invertase (NI), sucrose phosphate synthase …


Understanding The Role Of Thermal Stress In Modulating Growth, Yield, And Quality Attributes Of Tomato At Two Locations, Muhammad Uzair, Rabia Kalsoom, Kotb A. Attia, Irfan Ali, Tanveer Hussain, Asmaa M. Abushady, Haider Ali, Sajid Fiaz, Saima Jameel, Muhammad Usman Hameed, Rashid Iqbal, Muhammad Ramzan Khan Feb 2025

Understanding The Role Of Thermal Stress In Modulating Growth, Yield, And Quality Attributes Of Tomato At Two Locations, Muhammad Uzair, Rabia Kalsoom, Kotb A. Attia, Irfan Ali, Tanveer Hussain, Asmaa M. Abushady, Haider Ali, Sajid Fiaz, Saima Jameel, Muhammad Usman Hameed, Rashid Iqbal, Muhammad Ramzan Khan

Turkish Journal of Agriculture and Forestry

Tomato is a well-recognized and extensively cultivated crop on a global scale. However, the development of tomato varieties is hindered by adverse environments, limited genetic diversity, and low rates of seed setting. In this study, we evaluated 21 genotypes at two different locations in Pakistan. We analyzed morphological traits including vine length, days to 50% flowering, days to fruit setting initiation, number of clusters per plant (NCP), and number of flowers per cluster (NFC); yield-related traits such as fruit setting percentage per cluster, fruit setting percentage per plant, number of marketable fruits per plant (NMFP), marketable fruit yield per plant …


Agronomic Performance Of Fenugreek Genotypes Grown Under Various Sowing And Nitrogen Rates In A Highland Environment, Furkan Çoban, Hakan Özer Feb 2025

Agronomic Performance Of Fenugreek Genotypes Grown Under Various Sowing And Nitrogen Rates In A Highland Environment, Furkan Çoban, Hakan Özer

Turkish Journal of Agriculture and Forestry

Fenugreek is an important medicinal plant used in food, medicine, and other industries. In recent years, there has been increased interest in the fenugreek plant, with increased support given for fenugreek in Türkiye. However, there is a need for sound recommendations on agronomic practices such as variety selection, plant density, and fertilization due to local differences in the climate and soil structure. This research was conducted to determine the yield and some agricultural characteristics of two fenugreek genotypes (Turkish and Iranian) grown under different nitrogen (N) (0, 20, 40, 60, and 80 kg ha–1) and sowing (20, 40, and 60 …


Woody Plant Reinvasion Shortens The Lifespan Of Grassland Restoration Treatments, Dillon T. Fogarty, Michele Beadle, Craig R. Allen, Christine Bielski, Dirac Twidwell Feb 2025

Woody Plant Reinvasion Shortens The Lifespan Of Grassland Restoration Treatments, Dillon T. Fogarty, Michele Beadle, Craig R. Allen, Christine Bielski, Dirac Twidwell

Biology Student Work

An important question in restoration ecology is whether restored ecological regimes are more vulnerable to transitions back to a degraded state. In woody-invaded grasslands, high-intensity fire can collapse woody plant communities and induce a shift back to a grass-dominated regime. Yet, legacies from woody-dominated regimes often persist and it remains unclear whether restored regimes are at heightened vulnerability to reinvasion. In this study, we utilize a 17-year history of fire-based restoration in Nebraska's Loess Canyons Experimental Landscape to determine whether restored grassland regimes experience faster rates of Juniperus virginiana (eastern redcedar) reinvasion compared to the initial invasion process in adjacent …


Timber Harvesting Was The Most Important Factor Driving Changes In Vegetation Composition, As Compared To Climate And Fire Regime Shifts, In The Mixedwood Temperate Forests Of Temiscamingue Since Ad 1830, Daniela Robles, Yan Boulanger, Jesus Pascual, Victor Danneyrolles, Yves Bergeron, Igor Drobyshev Jan 2025

Timber Harvesting Was The Most Important Factor Driving Changes In Vegetation Composition, As Compared To Climate And Fire Regime Shifts, In The Mixedwood Temperate Forests Of Temiscamingue Since Ad 1830, Daniela Robles, Yan Boulanger, Jesus Pascual, Victor Danneyrolles, Yves Bergeron, Igor Drobyshev

Aspen Bibliography

Context The vegetation composition of northeastern North American forests has significantly changed since pre-settlement times, with a marked reduction in conifer-dominated stands, taxonomic and functional diversity. These changes have been attributed to fire regime shifts, logging, and climate change.

Methods In this study, we disentangled the individual effects of these drivers on the forest composition in southwestern Quebec from 1830 to 2000 by conducting retrospective modelling using the LANDIS-II forest landscape model. The model was run based on pre-settlement forest composition and fire history reconstructions, historical timber harvest records, and climate reanalysis data. We compared counterfactual scenarios excluding individual factors …


Evaluating Elk Distribution And Conflict Under Proposed Management Alternatives At The National Elk Refuge In Jackson, Wyoming, Gavin G. Cotterill, Paul C. Cross, Eric K. Cole, Jonathan D. Cook, Margaret C. Mceachran, Tabitha A. Graves Jan 2025

Evaluating Elk Distribution And Conflict Under Proposed Management Alternatives At The National Elk Refuge In Jackson, Wyoming, Gavin G. Cotterill, Paul C. Cross, Eric K. Cole, Jonathan D. Cook, Margaret C. Mceachran, Tabitha A. Graves

Aspen Bibliography

We evaluated measurable attributes describing the current and future distribution of Cervus elaphus canadensis (elk) across a region surrounding Jackson, Wyoming, for five feedground management alternatives proposed by the U.S. Fish and Wildlife Service as a revision to 2007 "Bison and Elk Management Plan" of the National Elk Refuge. A resource selection function evaluated measurable attributes of interest to managers, including elk use of private property and sensitive habitat types at monthly timesteps and varying winter conditions. The study area boundaries were created through an expert elicitation process and consist of the Jackson Elk Herd Unit, Grand Teton National Park, …


Increased Positive Tree Species Mixture Effects On The Abundance And Richness Of Collembola With Stand Development In Canadian Boreal Forests, Yakun Zhang, Sai Peng, Zilong Ma, Chen Chen, Bilei Gao, Xinli Chen, Han Y.H. Chen Jan 2025

Increased Positive Tree Species Mixture Effects On The Abundance And Richness Of Collembola With Stand Development In Canadian Boreal Forests, Yakun Zhang, Sai Peng, Zilong Ma, Chen Chen, Bilei Gao, Xinli Chen, Han Y.H. Chen

Aspen Bibliography

It is well established that species mixtures could enhance ecosystem functioning in diverse ecosystem types, with these benefits increasing over time. However, the impact of tree mixtures on Collembola communities following stand development in natural forests remains unclear, despite the critical roles Collembola plays in litter decomposition and nutrient cycling. We investigated the effects of tree species mixtures on Collembola abundance, diversity, and community structure by sampling pure and mixed jack pine (Pinus banksiana Lamb.) and trembling aspen (Populus tremuloides Michx.) of 15-year-old and 41-year-old stands in natural boreal forest. In total, 6,620 individuals of Collembola were identified …


Coffee Farmgate Price And Post-Harvest Processing In Honduras., Isaac Desouza Jan 2025

Coffee Farmgate Price And Post-Harvest Processing In Honduras., Isaac Desouza

Theses and Dissertations--Agricultural Economics

Volatile commodity markets and changing climate expose coffee farmers to price and production risk. Proponents recommend specialty coffee as a strategy to combat price risk, because its unique attributes differentiate it from commodity coffee. Extrinsic and intrinsic attributes define specialty coffee and affect prices at many levels of the supply chain. Despite much work on extrinsic attributes, little is known about how intrinsic attributes relate to farmgate price. Post-harvest processing is itself an intrinsic trait and driver of coffee quality. In 2024 we surveyed 261 coffee farmers from La Paz, Honduras, to uncover relationships between capital, post-harvest processing, and farmgate …


Feasibility Of Producing Non-Structural Wood Products Using Trembling Aspen Lumber, Mengyuan Zhang Jan 2025

Feasibility Of Producing Non-Structural Wood Products Using Trembling Aspen Lumber, Mengyuan Zhang

Aspen Bibliography

Trembling aspen (Populus tremuloides) is abundant in Canada but underutilized in non-structural solid wood products.This study was aimed at evaluating the feasibility of using aspen lumber to produce flooring, moulding, and siding. The shrinkage, surface roughness, and wettability of aspen wood were tested. The surface hardness, screw withdrawal resistance, colour change, and dimensional stability of there products fabricated were examined. The wood yield of each product was analyzed. It was found that aspen showed superior machinability and wettability to silver maple and yellow poplar. Aspen flooring had a Brinell hardness of 13.47 MPa, 60% lower than silver maple. …


Potential Of Using Trembling Aspen To Make Structural Engineered Wood Products, Dawei Wang Jan 2025

Potential Of Using Trembling Aspen To Make Structural Engineered Wood Products, Dawei Wang

Aspen Bibliography

Trembling aspen (Populus tremuloides) is abundant in Canada but is widely considered an underutilized species. This study was aimed at evaluating the potential of using aspen lumber to produce cross-laminated timber (CLT), glued-laminated timber (glulam), and wood I-joists. The key mechanical properties of these engineered wood products, which were fabricated using a modified grading criterion, were examined. It was found that 1) The mean effective bending stiffness and characteristic bending moment resistance of 5-layer CLT specimens in the major-strength direction were 5,069x109 N·mm2/m and 97.65x106 N·mm/m; 2) The mean apparent MOE and characteristic modulus …


Economic Analysis And Profitability Of Honey Production And Marketing In Cross River State, Nigeria, Joseph A. Ugbe, Tee T.N., Ancha P.U Dec 2024

Economic Analysis And Profitability Of Honey Production And Marketing In Cross River State, Nigeria, Joseph A. Ugbe, Tee T.N., Ancha P.U

Journal of Bioresource Management

The significance of honey in the socio-economic livelihoods of rural and semi-urban populations is paramount, as it tackles issues such as unemployment, income, and ecosystem preservation. The decrease in the timber industry has caused numerous individuals who rely on forests for their income to be without jobs, making it difficult to find other ways to make a living. This study examines the economic analysis and profitability of honey production and marketing in Cross River State, Nigeria, over 5 years (2017-2021) for sustainable forest management. Six hundred and eighty-four (684) respondents were selected from three ecological zones in the state using …


Function Over Form: The Benefits Of Aspen As Surrogate Brood-Rearing Habitat For Greater Sage-Grouse, Michel T. Kohl, Charles P. Sandford, Paul C. Rogers, Renee Chi, Terry A. Messmer, David K. Dahlgren Dec 2024

Function Over Form: The Benefits Of Aspen As Surrogate Brood-Rearing Habitat For Greater Sage-Grouse, Michel T. Kohl, Charles P. Sandford, Paul C. Rogers, Renee Chi, Terry A. Messmer, David K. Dahlgren

Aspen Bibliography

Species of conservation concern are often habitat specialists, posing significant risk to those species when specific plant communities are threatened. As a result, practitioners habitually focus conservation efforts on these communities while ignoring ecological mechanisms that explain the wildlife–plant relationships. In doing so, practitioners may overlook alternative vegetation communities that could maintain wildlife populations under alternative conditions (e.g., climate change). Here, we term these areas surrogate habitat, defined as vegetation communities or resource sites that provide similar critical resources as conventional sites, and assess their potential for conservation using a case study of greater sage-grouse (Centrocercus urophasianus) on …


Tree Rings Reveal Mixtures Of Aspen And Spruce Exhibit Greater Drought Resilience In A Planted Field Experiment, Jéssica Chaves Cardoso, Linhao Wu, Marcel Schneider, Charles A. Nock Dec 2024

Tree Rings Reveal Mixtures Of Aspen And Spruce Exhibit Greater Drought Resilience In A Planted Field Experiment, Jéssica Chaves Cardoso, Linhao Wu, Marcel Schneider, Charles A. Nock

Aspen Bibliography

Boreal forests provide a wealth of ecosystem services, many of which are linked to forest productivity. Climate change is expected to increase the frequency, duration, and severity of drought, and undermine the productivity of western boreal forests. Favouring species mixtures has emerged as a potential strategy to increase forest resilience to drought. To test the hypothesis that mixtures of trembling aspen and white spruce were more productive than pure stands because they were more resistant and resilient to drought, we analyzed community and species responses to drought utilizing measurements of annual growth obtained from stem disc samples from a planted …


Comparing Multivalent Cross-Linked Sodium Alginate/ Montmorillonite Beads Containing Curcumin Or Cayenne Pepper As Drug Carriers And Their Antimicrobial Resistance, Shionainn Traynor, Shubham Sharma Dec 2024

Comparing Multivalent Cross-Linked Sodium Alginate/ Montmorillonite Beads Containing Curcumin Or Cayenne Pepper As Drug Carriers And Their Antimicrobial Resistance, Shionainn Traynor, Shubham Sharma

SURE Journal: Science Undergraduate Research Experience Journal

The aim of the following work was to investigate and compare curcumin and cayenne pepper in microbeads composed of sodium alginate (SA) crosslinked with montmorillonite (MMT) to act as drug carriers and their antimicrobial resistance. The microbeads were prepared through ion-exchange in multivalent solutions of CaCl2, MgCl2 and AlCl3. The microbeads were characterized by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray analysis (EDX) and the time required for intercalation of curcumin and cayenne pepper with MMT. Simulated intestinal fluid (pH 7.3) and gastric fluid (pH 1.2) at 37°C were used for comparison in swelling studies. …


Editorial - Sure Journal Vol 6, Anne M. Friel, Eva Campion, Sinead Loughran Dec 2024

Editorial - Sure Journal Vol 6, Anne M. Friel, Eva Campion, Sinead Loughran

SURE Journal: Science Undergraduate Research Experience Journal

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Assessing Spatial Distribution And Quantification Of Native Trees In Saskatchewan's Prairie Landscape Using Remote Sensing Techniques, Elham Shafeian, Bryan J. Mood, Kenneth W. Belcher, Colin P. Laroque Dec 2024

Assessing Spatial Distribution And Quantification Of Native Trees In Saskatchewan's Prairie Landscape Using Remote Sensing Techniques, Elham Shafeian, Bryan J. Mood, Kenneth W. Belcher, Colin P. Laroque

Aspen Bibliography

The importance of trees in non-forest landscapes has been the focus of only a few studies. However, these trees provide many important ecosystem services. In this study, we mapped and quantified these trees using Sentinel-2 (S2) and very high-resolution (VHR) Google satellite imagery without any field campaigns. We performed a Random Forest (RF) classification to map the spatial distribution of native trees in different scenarios. The optimal model showed an overall accuracy and kappa of 0.99 and 0.98, respectively. We mapped 40,500 km2 of tree cover, including native tree cover (approximately 29,565 km2≈10.5%), excluding plantations, regional and …