Agriculture Commons^™

The Comparison Of Botanical Composition And The Condition And Health Class Of Different Rangeland Sites In Forest Ecosystem, Emre Çomakli, Mehmet Keri̇m Güllap, Tuğba Çomakli, Adnan Bi̇lgi̇li̇

Turkish Journal of Agriculture and Forestry

In this study conducted in Erzurum province's Oltu district Kırdağı location during 2015, 2016 and 2017 concerning the above forest, forest interior and forest edge rangeland sites, the botanical composition of rangeland sites, canopy coverage rate, rangeland condition scores, and comparison of the condition of rangeland and the health class were emphasized. According to the results, although the grass and legume rations in the forest edge rangeland was lower, the others families? ratio was higher than that of the other sites. Hence, it was determined that the ratio of canopy coverage rate was higher in the forest top rangelandsite compared …

Refining A Protocol For Somatic Embryogenesis And Plant Regeneration Of Phalaenopsis Amabilis Cv. Jinan From Mature Tissues, Reza Ghahremani, Shirin Dianati Daylami, Masoud Mirmasoumi, Naser Askari, Kourosh Vahdati

Turkish Journal of Agriculture and Forestry

Phalaenopsis is one of the most remarkable commercial genera in Orchidaceae family. Using immature explants for tissue culture of orchid results in undesired characteristics such as genetic variation and long-lasting juvenility. In this study, we optimized a protocol for somatic embryogenesis of Phalaenopsis amabilis cv. Jinan, by using mature thin cell layer (TCL) explants to minimize immature explant limitations. We examined somatic embryogenesis from two types of mature explants, viz. leaf lTCL and flower stalk nodes tTCL at various concentrations of thidiazuron (TDZ) (0, 1, 2, and 3 mg L-1). The results demonstrated that lTCL explants cultured on medium supplemented …

Earliness, Yield, And Fruit Quality Characteristics In Low Chill Peach-Nectarines: A Comparison Of Protected And Open Area Cultivation, Oğuzhan Çalişkan, Safder Bayazit, Kazi̇m Gündüz, Derya Kiliç, Sultan Göktaş

Turkish Journal of Agriculture and Forestry

This study was carried out to determine the effects of protected cultivation on the earliness, yield, and fruit quality characteristics of some lowchill peach-nectarine cultivars grown in the eastern Mediterranean region of Turkey. Phenological observations, yield parameters, and fruit quality characteristics were investigated. The chilling durations as CH (chilling hours), CU (chilling unit), and heat accumulations were determined. The `Astoria? cultivar reached the highest cumulative yield of 29.11 kg/tree and 38.72 t/ha, and fruit size was 131.89 g and 61.74 mm in protected cultivation. The CH and CU values under protected cultivation were 28% and 40% lower than in open …

Pumping Fees And Spillovers In The Groundwater Commons: An Evaluation Of A Conservation Tool And Irrigator Competitive Behavior, Godwin Kwabla Ekpe

Graduate Research Theses & Dissertations

My dissertation examines the effectiveness of pumping fees in groundwater commons agricultural irrigation as a conservation tool in the presence of varying water scarcity levels and spatial interdependence among irrigators. The first chapter provides a brief overview of three important areas of groundwater commons irrigation addressed in this dissertation. The second chapter’s objectives are two-fold. First, I review the common-pool resources literature relative to concerns of sustainable extraction and implementation of conservation policies focusing on pricing incentives in the management of groundwater commons where irrigators share the same underlying aquifer. Second, I introduce a theoretical model involving incorporating a non-constant …

Genetically Modified Corn Diffusion And Biofuel Usage: Impacts On Corn Belt Cropping Systems Changes, Kenneth Annan

Electronic Theses and Dissertations

The adoption of genetically modified (GM) crops, the rise of ethanol production that produced an additional derived demand for corn, and the increasingly prominent position of corn and soybeans in crop rotations embody major changes in U.S. agriculture during the past decades. This study investigates the linkages among these developments in two ways. First, we look at how biotechnology and biofuels have influenced cropping system changes in the Corn Belt region of the United States, using state-level data from 2000 to 2019. Second, we investigate the determinants of corn acreage intensification levels and heterogeneity at the state level using data …

Quantifying The Impacts Of An Integrated Crop-Livestock System On Plant Nutrient Accumulation, Crop Yield, And Economic Performance, Teerath Singh Rai

Electronic Theses and Dissertations

Integrated crop-livestock systems (ICLs), if managed properly, have the potential for enhancing crop production and economics. Cover crops in ICL can be grazed to provide feed for livestock and improve nutrient recycling. This dissertation focused on assessing the impacts of ICL on crop yield and economics using field and modeling studies. Specific objectives of this dissertation are: (i) evaluating the impacts of the ICL on crop yield, and economic performance in a 3-yr oat (Avena sativa L.) – maize (Zea mays L.) – soybean (Glycine max (L.) Merr.) rotation, (ii) assessing the impacts of the ICL on maize biomass accumulation, …

Louisiana Agriculture Winter, 2021, Lsu Agcenter

Louisiana Agriculture

No abstract provided.

Genome Wide Association Study On Kernel Size In Avena Sativa (Oats), Koryne Ann Carlson

Electronic Theses and Dissertations

Kernel size is a vital milling characteristic for Avena sativa L. (oats), with larger kernel size being desirable for milling facilities. This project evaluated the effect of genotype, environment, and their genotype by environment interaction (G by E) on kernel width, length, and area for a set of 27 oat cultivars grown at multiple locations in South Dakota over three years. Findings indicated significant differences among oat varieties, and that environment had a substantial effect on kernel size. However, we did not see a strong influence of genotype by environment interaction on kernel size. The lack of impact for genotype …

Characterization Of The Rumen Bacterial Communities Of Bison Heifers Fed A Grass-Based Diet Vs A Grain-Based Free-Choice Diet, Anlly Miley Fresno Rueda

Electronic Theses and Dissertations

A century ago, the North American grasslands and prairie ecosystems were dominated by bison. At least 30 million bison roamed the Great Plains when the first explorers arrived. By 1900, there were little over a thousand bison remained in the United States and Canada. Recovery efforts has been made since the 20th century to reestablish the herds and increase the bison population. Today, over 500,000 bison are distributed across North America, with more than 90% of the existing bison population under commercial production. Modern conservation strategies are made via the collaborative efforts of conservationist, producers, and researchers, resulting in increased …

Influence Of Cover Crops On Water And Nutrient Cycles In South Dakota, Sam Ireland

Electronic Theses and Dissertations

A major concern of farmers implementing cover crops into a crop rotation is a potential reduction in soil moisture and nutrients available for the following cash crop. If soil moisture or nutrients are limited, the following cash crop yield suffers. One option to conserve soil moisture is to terminate cover crops with herbicides prior to a killing freeze. The purpose of this study is to develop a better understanding of the impact of cover crops and termination timing to the water and nutrient cycles and furthermore, the agronomic impact to the following cash crop (corn). Field experiments were conducted in …

White River Aspen Management Project, Usda Forest Service

Aspen Bibliography

Comments Welcome

The White River National Forest (WRNF) welcomes your comments on its proposal to conduct vegetation management activities designed to sustain and expand aspen (Populus tremuloides) forests on National Forest System (NFS) lands. Your comments will help us further develop the proposed action, potential alternatives, and complete an environmental assessment. The assessment will be used to determine whether to prepare an environmental impact statement or a finding of no significant impact. Instructions for submitting comments are described on the last page. Additional project information is available here: https://www.fs.usda.gov/project/?project=59419

This Notice of Proposed Action (NOPA) is also requesting …

Effects Of Melatonin Applications On Certain Biochemical Characteristics Of Strawberry Seedlings In Lime Stress Conditions, Gülden Balci

Turkish Journal of Agriculture and Forestry

The aim of this study is to determine the effects of different doses of melatonin (MEL) applications (0, 5, 10 μM) on certain biochemical characteristics of strawberry seedlings grown in calcareous stress conditions. The experiment was conducted in the pots filled with lime-added mixture at the rate of 1% and peat perlite at the rate of 1:1 with frigo seedlings belonging to "Albion" strawberry cultivar. In order to examine the effects of MEL application against lime stress in different development stages; analyses of proline, total phenolic content, and lipid peroxidation were performed on leaf samples taken in 3 different periods. …

Determination Of The In Vitro Bioaccessibility Of Phenolic Compounds And Antioxidant Capacity Of Juniper Berry (Juniperus Drupacea Labill.) Pekmez, Kübra Özkan, Ayşe Karadağ, Osman Sağdiç

Turkish Journal of Agriculture and Forestry

In this study, the total phenolic content (TPC), total flavonoid content (TFC), in vitro antioxidant capacity and individual phenolic compounds of Juniperus drupacea Labill berry and pekmez (molasses) were determined. Since pekmez was the only edible form of berry, the bioaccessibility of phenolic compounds and the antioxidant capacity of the pekmez were assessed following exposure to simulated gastrointestinal conditions. The phenolic compounds determined in the berry and pekmez were similar, while the pekmez was especially rich in protocatechuic acid, and additionally, the berries were rich catechin and chrysin. Generally, through oral to the intestinal stage of the simulated gastric conditions, …

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 …

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 …

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 …

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 …

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 …

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, …

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 …

Patterns Of Genetic Variation In A Prairie Wildflower, Silphium Integrifolium, Suggest A Non-Prairie Origin And Locally Adaptive Variation, Andrew R. Raduski, Adam Herman, Cloe Pogoda, Kevin M. Dorn, David L. Van Tassel, Nolan Kane, Yaniv Brandvain

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

PREMISE: Understanding the relationship between genetic structure and geography provides information about a species’ history and can be used for breeding and conservation goals. The North American prairie is interesting because of its recent origin and subsequent fragmentation. Silphium integrifolium, an iconic perennial American prairie wildflower, is targeted for domestication, having undergone a few generations of improvement. We present the first application of population genetic data in this species to address the following goals: (1) improve breeding by characterizing genetic structure and (2) identify the species geographic origin and potential targets and drivers of selection during range expansion. METHODS: We …

Monocyte Abundance And White Blood Cell Expression Of Prolactin And Nf-Kb Pathway Genes In Beef Steers Are Altered By Grazing Toxic Endophyte-Infected Tall Fescue And Lipopolysaccharide Challenge, Cecilia Winfrey

Theses and Dissertations--Animal and Food Sciences

Experiment 1 tested the hypothesis that ad libitum consumption of a 1:1 blend (MIX) of sodium selenite (ISe) and SELPLEX vs solely ISe as selenium (Se) supplements (27 ppm) in a vitamin-mineral mix (V-M) by steers subjected to summer-long grazing of toxic endophyte-infected tall fescue (TE) would ameliorate the negative effects of TE by positively affecting the expression pattern of prolactin (PRL) and NF-kB pathway genes by circulating leukocytes (WBC). Experiment 2 tested the hypothesis that the MIX form of supplemental Se also would ameliorate the negative effects of in vitro blood lipopolysaccharide challenge (LPS) on WBC gene expression. The …

James B Beard: The Father Of Contemporary Turfgrass Science, G.K. Stahnke, P.E. Rieke, Robert C. Shearman, Roch E. Gaussoin, David Kopec

Department of Agronomy and Horticulture: Faculty Publications

James B Beard (24 Sept 1935 to 8 May 2018) can rightly be considered the “Father” of contemporary turfgrass science. During his career, he was known for setting a standard that provided the foundation for turfgrass science through his thorough approach to research, teaching, mentoring and communications. The books he published outlined a vision for an evolving scientific discipline. He trained and mentored >45 domestic and international doctoral and master students and numerous post-doctoral trainees, who in turn continued to raise the quality of contemporary turfgrass science in the USA and internationally. He led the effort to change the name …

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 …

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 …

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, …

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, …

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. …

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, …

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, …