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2021

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Articles 481 - 510 of 582

Full-Text Articles in Forest Sciences

Genetic Diversity For Agro-Morphological Characters And Nutritional Compositions Of Some Local Faba Bean (Vicia Faba L.) Genotypes, Aybegün Ton, Tolga Karaköy, Adem Emi̇n Anlarsal, Meltem Türkeri̇ Jan 2021

Genetic Diversity For Agro-Morphological Characters And Nutritional Compositions Of Some Local Faba Bean (Vicia Faba L.) Genotypes, Aybegün Ton, Tolga Karaköy, Adem Emi̇n Anlarsal, Meltem Türkeri̇

Turkish Journal of Agriculture and Forestry

This study was carried out in Mediterranean climate and under rainfed conditions in Turkey for a period of three years throughout the growing seasons of 2014/2015, 2015/2016 and 2016/2017. It was conducted in a randomized complete block experimental design (RCBD) with three replications. In present study, genetic diversity for agro-morphological characters and macro/ microelements were investigated in sixteen promising local faba bean genotypes originated from Turkey. According to the results of the study, mean grain yield varied from 2320 kg ha-1 (Tekirdağ-39) to 3130 kg ha-1 (Burdur-50). 100-grain weight and branches per plant had high heritability and genetic advance as …

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Hydropriming Associated Physiological And Biochemical Changes Responsible For The Enhanced Planting Value Of Maize Hybrid And Its Parental Line Seeds, Heena Rasool Mir, Shiv Yadav, Sangita Yadav Jan 2021

Hydropriming Associated Physiological And Biochemical Changes Responsible For The Enhanced Planting Value Of Maize Hybrid And Its Parental Line Seeds, Heena Rasool Mir, Shiv Yadav, Sangita Yadav

Turkish Journal of Agriculture and Forestry

Hydropriming has the potential to ameliorate the stress-induced ill effects on yields of the crop plants and quality of seed produced. In the present study, half of the fresh seeds of maize hybrid, PEHM 5 and its parental lines (Female - CM 150, Male - CM 151) were subjected to accelerated aging test for bringing down the viability and vigour, thereby creating low vigour lots while high vigour lots consisted of fresh seeds, which were hydroprimed (30 h at 25 °C). Half of the hydroprimed seeds were surface dried while the other half were redried back to the original moisture …

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Development Of A Mobile Robot-Based Combined Sensor Platform To Determine The Corre-Lation Between Soil Penetration Resistance And Electrical Conductivity, İlker Ünal, Mehmet Topakci, Murad Çanakci, Davut Karayel, Erdem Yilmaz, Önder Kabaş Jan 2021

Development Of A Mobile Robot-Based Combined Sensor Platform To Determine The Corre-Lation Between Soil Penetration Resistance And Electrical Conductivity, İlker Ünal, Mehmet Topakci, Murad Çanakci, Davut Karayel, Erdem Yilmaz, Önder Kabaş

Turkish Journal of Agriculture and Forestry

Open-field farming involves successive major processes such as preparation of soil, planting the seed, adding pesticides and fertilizers, irrigation, cultivation, and harvest. The main aim of all processes is to achieve maximum yield out of the available agricul-tural landscape. It is necessary to collect geo-referenced descriptive data on soil characteristics, such as soil penetration resistance and electrical conductivity before starting all these processes. In this context, agricultural robots offer highly promising technologies provid-ing valuable soil data, lower production costs, reduced manual labour, and maximum crop efficiency. The aim of this study is to design and develop a combined sensor platform …

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Selected Properties Of Briquettes Made From Blends Of Bamboo And Beech Biomass, Aurel Lunguleasa, Nadi̇r Ayrilmiş, Daniela Sova, Cosmin Spirchez Jan 2021

Selected Properties Of Briquettes Made From Blends Of Bamboo And Beech Biomass, Aurel Lunguleasa, Nadi̇r Ayrilmiş, Daniela Sova, Cosmin Spirchez

Turkish Journal of Agriculture and Forestry

This study reported the experimental analysis on wood briquettes manufactured from Moso bamboo (Phyllostachys pubescens) and beech wood (Fagus sylvatica), regarded as an economically valuable fuel source. The following properties of briquettes: physical properties (density and moisture content); chemical properties (heating value, namely calorific value, and ash content); thermal properties (thermal conductivity and specific heat); and mechanical properties (breaking strength). These properties allowed the assessment of the efficiency of two species for using them in briquette manufacturing. The briquettes with higher fractions of bamboo wood showed enhanced characteristics as compared to the briquettes made of beech. This can be explained …

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The Rapid Detection Method Of Chlorophyll Content In Rapeseed Based On Hyperspectral Technology, Hongyuan Tang, Guiping Liao Jan 2021

The Rapid Detection Method Of Chlorophyll Content In Rapeseed Based On Hyperspectral Technology, Hongyuan Tang, Guiping Liao

Turkish Journal of Agriculture and Forestry

The inconsistency of chlorophyll content in rapeseed directly affects the quality of seed, so it is necessary to establish a rapid and nondestructive detection technology of chlorophyll in mature rapeseed. In this paper, the content of chlorophyll in rapeseed samples was determined by ultraviolet-visible spectrophotometry, and the near-infrared spectrum data were collected. The partial least squares regression model of chlorophyll content in rapeseed was established based on hyperspectral technology through first derivative and standard normal variable transformation pretreatment. The results of the cross-test showed that the determination coefficient of the validation set of the prediction model of chlorophyll content in …

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Physiological And Biochemical Responses Of Almond Rootstocks To Drought Stress, Adnan Nurhan Yildirim, Beki̇r Şan, Fatma Yildirim, Ci̇van Çeli̇k, Berna Bayar, Yaşar Karakurt Jan 2021

Physiological And Biochemical Responses Of Almond Rootstocks To Drought Stress, Adnan Nurhan Yildirim, Beki̇r Şan, Fatma Yildirim, Ci̇van Çeli̇k, Berna Bayar, Yaşar Karakurt

Turkish Journal of Agriculture and Forestry

Water availability is a very important factor for the growth and development of plants, which limits the plant production capacity. Rootstocks are widely utilized to improve plants tolerance to various biotic and abiotic stresses. In this study, physiological and biochemical responses of fifteen almond rootstock candidates to drought stress were investigated under in vitro conditions. The shoot tips from fifteen almond rootstock candidates were cultured in MS medium containing 1.0 mg/L BAP, 0.01 mg/L IBA, 30 g/L sucrose and 7 g/L agar. Plantlets were exposed to 0%, 1% and 2% polyethyleneglycol (PEG) as drought stress levels during four weeks. At …

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Individual And Combined Effect Of Drought And Heat Stresses In Contrasting Potatocultivars Overexpressing Mir172b-3p, Arslan Asim, Zahi̇de Nesli̇han Öztürk Gökçe, Allah Bakhsh, İlknur Tindaş Çayli, Emre Aksoy, Sevgi̇ Çalişkan, Mehmet Emi̇n Çalişkan, Ufuk Demi̇rel Jan 2021

Individual And Combined Effect Of Drought And Heat Stresses In Contrasting Potatocultivars Overexpressing Mir172b-3p, Arslan Asim, Zahi̇de Nesli̇han Öztürk Gökçe, Allah Bakhsh, İlknur Tindaş Çayli, Emre Aksoy, Sevgi̇ Çalişkan, Mehmet Emi̇n Çalişkan, Ufuk Demi̇rel

Turkish Journal of Agriculture and Forestry

MicroRNAs (miRNAs) are essential players of plant defence systems because of their involvement in reprogramming gene expression under adverse environmental conditions including drought and heat, which are considered major players in limiting crop productivity. miR172b-3p was previously determined as a remarkable stress-responsive miRNA in our next-generation sequencing (NGS) analysis in potato. This study aims to understand the functions of miR172b-3p and its target (ERTF RAP2-7-like) under drought, heat, and combined treatments by overexpressing the miR172b-3p in stress-tolerant (Unica) and sensitive (Russet Burbank) potato cultivars. miR172b-3p overexpression in transgenic lines suppressed the ERTF RAP2-7-like expression leading to enhanced carbon fixation efficiency. …

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The Effect Of Different Drying Methods On Nutritional Composition And Antioxidantactivity Of Purslane (Portulaca Oleracea), Hali̇l İbrahi̇m Bi̇ni̇ci̇, İhsan Güngör Şat, Eyad Aoudeh Jan 2021

The Effect Of Different Drying Methods On Nutritional Composition And Antioxidantactivity Of Purslane (Portulaca Oleracea), Hali̇l İbrahi̇m Bi̇ni̇ci̇, İhsan Güngör Şat, Eyad Aoudeh

Turkish Journal of Agriculture and Forestry

The aim of this study was to determine the effect of different drying methods on the nutritional content and antioxidant activity of purslane. Two different purslane samples have been dried using four different methods (sun, vacuum, hot air, and freeze drying). Dried and fresh samples were analyzed for their dry matter, β-carotene content, chlorophyll a and chlorophyll b contents, total flavonoid content, total flavonol content, total phenolic content, %DPPH radical scavenge activity, metal chelating activity, and color. The dry matter content of fresh purslane was 3.86%-5.28%. The β-carotene, chlorophyll a and b amounts varied from 61.31 to 67.08 mg/100 g, …

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Analysis Of Designs Used In Monitoring Crop Growth Based On Remote Sensing Methods, Cristina Teodora Dobrota, Rahela Carpa, Anca Butiuc-Keul Jan 2021

Analysis Of Designs Used In Monitoring Crop Growth Based On Remote Sensing Methods, Cristina Teodora Dobrota, Rahela Carpa, Anca Butiuc-Keul

Turkish Journal of Agriculture and Forestry

Choosing appropriate designs and methods for monitoring crop growth is a challenging process of major importance. Remote sensing from space and manned or unmanned airborne operations are used to measure crop reflectance and a wide variety of other agricultural parameters. While some experiments use only a few, specific methods and designs and organize the results in lists of evidence, other experiments use a wider range of techniques to create a more credible and comprehensive assessment of crop yield. Particular situations related to the available resources in terms of data collection and expertise in addition to the intended use of the …

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Fine Root Vertical-Seasonal Distribution Of Robinia Pseudoacacia In Relation To Abioticfactors In A Chronosequence In Coastal Saline Alkali Land Of The Yellow River Delta, China, Longmei Guo, Banghua Cao, Peili Mao, Zexiu Li, Muzheng Hao, Tiantian Wang, Fucheng Jiang Jan 2021

Fine Root Vertical-Seasonal Distribution Of Robinia Pseudoacacia In Relation To Abioticfactors In A Chronosequence In Coastal Saline Alkali Land Of The Yellow River Delta, China, Longmei Guo, Banghua Cao, Peili Mao, Zexiu Li, Muzheng Hao, Tiantian Wang, Fucheng Jiang

Turkish Journal of Agriculture and Forestry

Despite the recognized importance of the fine roots in influencing tree growth and stand productivity, knowledge of fine roots is still limited, especially in adverse sites like saline-alkali land. In this paper, we applied sequential soil coring to assess the influence of stand age, soil depth and growth month on fine roots in 3, 16, 30 and 40-year old Robinia pseudoacacia stand in coastal saline-alkali land of the Yellow River Delta, China. Besides, the correlations between fine roots characteristics fine root biomass (FRB), fine root length (FRL), fine root surface area (FRSA), specific root length (SRL) and specific root surface …

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The First Report About Genetic Diversity Analysis Among Endemic Wild Rhubarb(Rheum Ribes L.) Populations Through Ipbs Markers, Çeknas Erdi̇nç, Ayteki̇n Eki̇nci̇alp, Si̇bel Turan, Meti̇n Koçak, Faheem Shahzad Baloch, Suat Şensoy Jan 2021

The First Report About Genetic Diversity Analysis Among Endemic Wild Rhubarb(Rheum Ribes L.) Populations Through Ipbs Markers, Çeknas Erdi̇nç, Ayteki̇n Eki̇nci̇alp, Si̇bel Turan, Meti̇n Koçak, Faheem Shahzad Baloch, Suat Şensoy

Turkish Journal of Agriculture and Forestry

Approximately 30% of plant species of Turkey, which is among the richest countries in terms of biodiversity, has been endemic. Wild rhubarb (Rheum ribes L.) is a wild vegetable grows especially in the eastern region of Turkey and is an endemic species. In this study, genetic relationships among 80 wild rhubarb genotypes collected from some regions of Lake Van Basin, which are in the distribution area, were tried to be determined by iPBS marker system. At the same time, a commercial variety of R. rhabarbarum, which is a cultivated species, was used as control. PCR studies were conducted with 23 …

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Early Tree Performances, Precocity And Fruit Quality Attributes Of Newly Introducedapricot Cultivars Grown Under Western Serbian Conditions, Tomo Milosevic, Nebojsa Milosevic, Ivan Glisic Jan 2021

Early Tree Performances, Precocity And Fruit Quality Attributes Of Newly Introducedapricot Cultivars Grown Under Western Serbian Conditions, Tomo Milosevic, Nebojsa Milosevic, Ivan Glisic

Turkish Journal of Agriculture and Forestry

In this work, 19 newly introduced and some traditional apricot cultivars were evaluated by 20 phenological and agronomical traits and fruit quality attributes. The results showed a wide variation in phenological data, tree vigour (TCSA), productivity [yield per tree, cumulative yield (CY) and yield efficiency (YE)], and fruit quality attributes such as fruit and stone weight, flesh/stone ratio, fruit dimensions, size, shape index, soluble solids content (SSC), titratable acidity (TA) and ripening index (RI). The average onset of blossoming varied from 16 March to 20 March, whereas harvest was between 1 June and 12 September. The most vigorous trees were …

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Evaluation Of Lonicera Caerulea L. Genotypes Based On Morphological Characteristics Offruits Germplasm Collection, Olga Grygorieva, Svitlana Klymenko, Alla Kuklina, Yulia Vinogradova, Olena Vergun, Vladimira Horcinova Sedlackova, Jan Brindza Jan 2021

Evaluation Of Lonicera Caerulea L. Genotypes Based On Morphological Characteristics Offruits Germplasm Collection, Olga Grygorieva, Svitlana Klymenko, Alla Kuklina, Yulia Vinogradova, Olena Vergun, Vladimira Horcinova Sedlackova, Jan Brindza

Turkish Journal of Agriculture and Forestry

It is known that a polymorphic population consisting of a large number of genotypes adapts more rapidly to the environment conditions. The availability of a large gene pool predetermines the success of the introduction and further breeding of new cultivars with economically valuable features. Morphometrics is a classical tool for studying the amplitude of the variability of cultivated plants and evaluating the genotypic diversity of the artificial population. The objective of this study was to evaluate the morphological parameters of Lonicera caerulea L. fruits for 26 genotypes from the population introduced in the M.M. Gryshko National Botanical Garden (Kyiv). Morphological …

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Evaluation Of Bioaccessibility And Functional Properties Of Kombucha Beverages Fortified With Different Medicinal Plant Extracts, Canan Ece Tamer, Şehi̇me Gülsün Temel, Senem Suna, Azi̇me Özkan Karabacak, Tülay Özcan, Lütfi̇ye Yilmaz Ersan, Berra Türkol Kaya, Ömer Utku Çopur Jan 2021

Evaluation Of Bioaccessibility And Functional Properties Of Kombucha Beverages Fortified With Different Medicinal Plant Extracts, Canan Ece Tamer, Şehi̇me Gülsün Temel, Senem Suna, Azi̇me Özkan Karabacak, Tülay Özcan, Lütfi̇ye Yilmaz Ersan, Berra Türkol Kaya, Ömer Utku Çopur

Turkish Journal of Agriculture and Forestry

In this study, sweetened black and green tea were utilized as substrate for kombucha fermentation. Linden, lemon balm, sage, echinacea, mint, and cinnamon infusions were added to kombucha to design a novel beverage with improved functional and organoleptic characteristics. After fermentation, the antioxidant capacity (AC) of the kombucha increased by 13.96% 2,2-diphenyl-1- picryl-hydrazyl-hydrate (DPPH), 48.90% ferric reducing antioxidant power (FRAP), and 55.54% cupric reducing AC (CUPRAC). On days 0 and 9 of storage, the bioaccessibility of the total phenolics and AC (FRAP and CUPRAC) in all of the samples showed a significant increase after gastric and intestinal digestion when compared …

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Comparative Characteristics Of The Amino Acid Composition In Amaranth Accessions From The Vir Collection, Diana Sokolova, Tatyana Shelenga, Olga Zvereva, Alla Solovieva Jan 2021

Comparative Characteristics Of The Amino Acid Composition In Amaranth Accessions From The Vir Collection, Diana Sokolova, Tatyana Shelenga, Olga Zvereva, Alla Solovieva

Turkish Journal of Agriculture and Forestry

The development of products that fully meet the criteria for a healthy diet is one of the main trends in nutrition quality improvement worldwide. Amaranth, a leader in protein quality, has significant potential. A comparative study of the protein complex in leaf biomass has been conducted for the first time for Amaranthus spp. grown for various uses. The aim of the study was to analyze the characteristics of the amino acid composition and identify the relationships among its components in the amaranth leaf biomass. For this purpose, gas-liquid chromatography coupled with mass spectrometry was employed. Based on the data of …

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Growth And Nutrient Responses Of Betula Platyphylla, Larix Kaempferi, And Chamaecyparis Obtusa To Different Application Methods Of Solid Compound Fertilizer, Jeong Min Seo, Huong Thi Thuy Dao, Byung Bae Park Jan 2021

Growth And Nutrient Responses Of Betula Platyphylla, Larix Kaempferi, And Chamaecyparis Obtusa To Different Application Methods Of Solid Compound Fertilizer, Jeong Min Seo, Huong Thi Thuy Dao, Byung Bae Park

Turkish Journal of Agriculture and Forestry

We investigated the effects of different placement methods of applying slow-release fertilizer on the growth and foliar nutrients of three contrasting tree species (i.e., fast-growing Betula platyphylla and Larix kaempferi and slow-growing Chamaecyparis obtusa) to provide implications for increasing their growth and survival in marginal forest lands. We applied 84 g pot-1 of solid compound fertilizer (SCF) at different positions: no fertilization (CON), subsurface placement (SCFs), and bottom placement [35-cm depth (SCFb)] in a greenhouse condition. Results revealed that the height and RCD (root collar diameter) of the three species had the highest growth under SCFs. Total biomass across SCFs, …

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Phosphorus Sorption By Gyttja And Its Effect On The Ph Value And Phosphorus In Acidic Soils, Kadir Saltali, Ahmet Nedi̇rli̇ Jan 2021

Phosphorus Sorption By Gyttja And Its Effect On The Ph Value And Phosphorus In Acidic Soils, Kadir Saltali, Ahmet Nedi̇rli̇

Turkish Journal of Agriculture and Forestry

Tea and hazelnut cultivated soils are mainly distributed in Black Sea region of Turkey. Low pH value is a primary problem for those soils; therefore, farmers apply lime once every 3-4 years to raise the pH value of soil. Gyttja is highly rich in organic matter (40.59%) and lime (45.67%), and it is a low cost and considerably abundant in Afşin-Elbistan Coal Basin (estimated reserve is around 4.8 billion tons). The aim of this study was to determine the phosphorus (P) sorption characteristics of gyttja, and its efficiency on P availability and soil's pH value. Optimum P sorption conditions (pH, …

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The Effects Of Increasing Doses Of Nickel And Lead Applications On Some Oriental Tobacco Varieties, Mahmut Tepeci̇k, Mehmet Eşref İrget Jan 2021

The Effects Of Increasing Doses Of Nickel And Lead Applications On Some Oriental Tobacco Varieties, Mahmut Tepeci̇k, Mehmet Eşref İrget

Turkish Journal of Agriculture and Forestry

Heavy metals are hazardous pollutants for humans, animals and plants, when their threshold concentration exceeds. Tobacco can accumulate higher concentrations of heavy metals, and the genotypic differences of tobacco in heavy metal uptake and their growth responses have not been clearly examined. In this study, the effects of nickel (Ni) and lead (Pb) on phytoremediation capabilities were tested in four local Oriental tobacco cultivars (Basma, Akhisar, Sarıbağlar and Dibek). In two pot experiments, nitrogen (N), phosphorus (P) and potassium (P) were applied in fıxed doses, while Pb and Ni were applied at 4 different doses (10, 50, 100 and 150 …

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Nutritional And Biologically Active Compounds In Russian (Vir) Brassicaceae Vegetablecrops Collection, Alla Evgenievna Solovyeva, Tatyana Vasilevna Shelenga, Alexey Vasilievich Konarev, Anastasia Borisovna Kurina, Dmitry Lvovich Kornyukhin, Dmitry Andreevich Fateev, Anna Mayevna Artemyeva Jan 2021

Nutritional And Biologically Active Compounds In Russian (Vir) Brassicaceae Vegetablecrops Collection, Alla Evgenievna Solovyeva, Tatyana Vasilevna Shelenga, Alexey Vasilievich Konarev, Anastasia Borisovna Kurina, Dmitry Lvovich Kornyukhin, Dmitry Andreevich Fateev, Anna Mayevna Artemyeva

Turkish Journal of Agriculture and Forestry

The article presents the results of studying the biochemical composition of the large worldwide vegetable crops collection of the Brassicaceae family, stored at the N. I. Vavilov All-Russian Institute Institute of Plant Genetic Resources (VIR), St. Petersburg, Russia, consisting of 7303 accessions of different status (approximately 50% unique accessions) from 98 countries. Studied vegetable brassicas collection includes representatives of all botanical varieties, agroecological groups and cultivar types of the species cole crops Brassica oleracea L. and related wild Mediterranean species, leafy and root vegetable crops B. rapa L., leafy and root vegetable accessions of Indian mustard B. juncea Czern. subsp. …

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Qtl Mapping Of Seedling Root Traits In Synthetic W7984 × Opata M85 Bread Wheat(Triticum Aestivum L.) Mapping Population, Harun Bektaş Jan 2021

Qtl Mapping Of Seedling Root Traits In Synthetic W7984 × Opata M85 Bread Wheat(Triticum Aestivum L.) Mapping Population, Harun Bektaş

Turkish Journal of Agriculture and Forestry

Root system architecture, as a complex trait, has gained attention due to climate change and abiotic stress pressure on crops. The incorporation of root traits in breeding objectives may enable new advances in climate-resilient crops. Here, the genetics of the seedling root system architecture in the Synthetic W7984 × Opata M85 Doubled Haploid mapping population was investigated. Three traits at the seedling stage and mature stage root and shoot biomass traits were mapped for quantitative trait loci (QTL) identification. A total of five different loci on chromosomes 1B, 5A, and 7D with major effects were identified for total root length, …

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Reforming Cotton Genes: From Elucidation Of Dna Structure To Genome Editing, Muhammad Salman Mubarik, Sajid Majeed, Sultan Habibullah Khan, Xiongming Du, James E. Frelichowski, Lori Hinze, Muhammad Tehseen Azhar Jan 2021

Reforming Cotton Genes: From Elucidation Of Dna Structure To Genome Editing, Muhammad Salman Mubarik, Sajid Majeed, Sultan Habibullah Khan, Xiongming Du, James E. Frelichowski, Lori Hinze, Muhammad Tehseen Azhar

Turkish Journal of Agriculture and Forestry

Cotton is an essential fiber producing crop in the world. It also supports additional industries by providing high quality oil and protein in the form of cottonseed cake. Currently, there is an urgent need to increase lint yield, fiber quality, and resistance to biotic and abiotic stresses due to rising pressure from a global population and possible supply shortages from the effects of erratic climate changes. Classic plant breeding and transgenic strategies need more genetic breakthroughs to support the increasing pressure for fiber quantity and quality. A potential for rapid increases in crop improvement is in various state-of-the-art gene editing …

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A Smart Agricultural Application: Automated Detection Of Diseases In Vine Leaves Usinghybrid Deep Learning, Ahmet Alkan, Muhammed Usame Abdullah, Hanadi̇ Omai̇sh Abdullah, Muhammed Assaf, Huiyu Zhou Jan 2021

A Smart Agricultural Application: Automated Detection Of Diseases In Vine Leaves Usinghybrid Deep Learning, Ahmet Alkan, Muhammed Usame Abdullah, Hanadi̇ Omai̇sh Abdullah, Muhammed Assaf, Huiyu Zhou

Turkish Journal of Agriculture and Forestry

This paper reports a study which utilizes deep learning for automated detection of the symptoms of diseases on vine leaves. Vine fruits or grapes are very important and have existed in Syria and surrounding areas (e.g., Turkey) for many years. Quality of vine fruits is also very important in grape production as it is consumed in these areas every day. The aim of this study is to improve diseasedetection accuracy in vine leaves and to develop a system to help Syrian and Turkish farmers and agricultural engineers to maintain the quality of grape production. In this study, over 1000 images …

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Developing New Hyperspectral Vegetation Indexes Sensitive To Yield Andevapotranspiration Of Dry Beans, Eyüp Seli̇m Köksal, Cengi̇z Erdem, Mehmet Taşan, Kadi̇r Ersi̇n Temi̇zel Jan 2021

Developing New Hyperspectral Vegetation Indexes Sensitive To Yield Andevapotranspiration Of Dry Beans, Eyüp Seli̇m Köksal, Cengi̇z Erdem, Mehmet Taşan, Kadi̇r Ersi̇n Temi̇zel

Turkish Journal of Agriculture and Forestry

Dry bean (phaseolus vulgaris L.) field experiment was carried out under the subhumid climatic conditions of Bafra, Turkey, to evaluate the possibilities of using hyperspectral reflectance data for estimating yield and water consumption. Three irrigation management treatments that depend on monitoring soil water content and one rain-fed treatment were subjected to dry beans arranged in a randomized complete block design with three replications. In addition to soil water measurements, hyperspectral reflectance observations were made throughout the dry beans? growing season. Actual crop evapotranspiration values were calculated by using a detailed soil water balance approach. After smoothing the hyperspectral reflectance data, …

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Impacts Of Gümüşhane Cement Dust Emissions On Soil Elemental Compositions, Serdar Bi̇len, Müdahi̇r Özgül, Ekrem Özlü, Murat Bi̇len Jan 2021

Impacts Of Gümüşhane Cement Dust Emissions On Soil Elemental Compositions, Serdar Bi̇len, Müdahi̇r Özgül, Ekrem Özlü, Murat Bi̇len

Turkish Journal of Agriculture and Forestry

The cement dust deposition can cause environmental pollution and heavy metal contamination, which negatively impacts soil nutrient availability and hence crop productivity. Thus, this study evaluates the impact of cement dust emissions on soil elemental compositions in different tillage managements. In this study, composite soil samples were taken from conventional tillage (CT), and notill (NT) managed fields under wheat-sugar beet (potato)-fallow cropping sequence. Soil samples were randomly collected from 0-30 cm depth in three replications and different distances (1, 2, 4, 6, 8, and 10 km) from a cement plant. Soil pH, clay, and CaCO3 contents were higher under CT …

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Apple Leaf Disease Detection And Classification Based On Transfer Learning, Cevher Özden Jan 2021

Apple Leaf Disease Detection And Classification Based On Transfer Learning, Cevher Özden

Turkish Journal of Agriculture and Forestry

The world population and the number of people affected by hunger constantly increases. Precision farming offers new solutions to a modern and more fertile production in agriculture. Early and in-place disease detection is one of the fields that recent studies have focused on. The present paper introduces a new approach to transfer learning in that training, validating and testing of the model have been made on images from different sources to see its effectiveness. Several optimization methods including the adaptation of a recent custom PowerSign optimization algorithm are compared in the study. Accordingly, the model with Adagrad optimizer produced more …

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Residual Spatial Autocorrelation In Macroecological And Biogeographical Modeling: A Review, Guetchine Gaspard Jan 2021

Residual Spatial Autocorrelation In Macroecological And Biogeographical Modeling: A Review, Guetchine Gaspard

Theses and Dissertations--Geography

Macroecological and biogeographical modelers have predicted the distribution of species across space relying on the relationship between biotic processes and environmental variables. Such a method employs data associated, for instance, with species abundance or presence/absence, climate, geomorphology, and soils. Statistical analyses found in previous studies have highlighted the importance of accounting for the effects of spatial autocorrelation (SAC), which indicates a level of dependence between pairs of nearby observations. A consensus has existed that residual spatial autocorrelation (rSAC) can substantially impact modeling processes and inferences. However, more emphasis should be put on identifying the sources of rSAC and the degree …

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Timber Talk, Vol. 59, No. 2, June 2021 Jan 2021

Timber Talk, Vol. 59, No. 2, June 2021

Timber Talk: Nebraska Forest Industry Newsletter

Timber Talk, Vol. 59, No.2, June 2021

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Smokejumper Obituary: Dieffenbach, Alan E. (Grangeville 1957), National Smokejumper Association Jan 2021

Smokejumper Obituary: Dieffenbach, Alan E. (Grangeville 1957), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

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Beaver Moderated Fire Resistance In The North Cascades And Potential For Climate Change Adaptation, Joseph John Weirich Iii Jan 2021

Beaver Moderated Fire Resistance In The North Cascades And Potential For Climate Change Adaptation, Joseph John Weirich Iii

EWU Masters Thesis Collection

Climate change and fire suppression have altered historic fire regimes, creating conditions for larger, more intense fires. Intense burns can alter watershed hydrology, increasing the potential for harmful channel incision, which impairs riparian ecosystem function by lowering the water table, disconnecting floodplains from aquatic environments. However, wetlands and functioning riparian zones can reduce burn intensity. Beaver, with their unique ability to build dams, can restore incised and degraded streams, store water, and expand wetland environments, potentially decreasing wildfire intensity, fire spread and create fire breaks across the landscape. My objective was to test the hypothesis that beaver impoundments increase landscape …

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Fertilization And Tree Species Influence On Stable Aggregates In Forest Soil, Jacob E. Kemner, Mary Beth Adams, Louis M. Mcdonald, William T. Peterjohn, Charlene N. Kelly Jan 2021

Fertilization And Tree Species Influence On Stable Aggregates In Forest Soil, Jacob E. Kemner, Mary Beth Adams, Louis M. Mcdonald, William T. Peterjohn, Charlene N. Kelly

Faculty & Staff Scholarship

Abstract: Background and objectives: aggregation and structure play key roles in the water-holding capacity and stability of soils and are important for the physical protection and storage of soil carbon (C). Forest soils are an important sink of ecosystem C, though the capacity to store C may be disrupted by the elevated atmospheric deposition of nitrogen (N) and sulfur (S) compounds by dispersion of soil aggregates via acidification or altered microbial activity. Furthermore, dominant tree species and the lability of litter they produce can influence aggregation processes. Materials and methods: we measured water-stable aggregate size distribution and aggregate-associated organic matter …

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