Browsing by Author "Yildirim, Bunyamin"

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Changes of Micronutrients, Dry Weight and Plant Development in Canola (Brassica Napus L.) Cultivars Under Salt Stress
(Academic Journals, 2011) Tuncturk, Murat; Tuncturk, Ruveyde; Yildirim, Bunyamin; Ciftci, Vahdettin
This study was carried out to determine the effects of salt stress on the growth, dry weights and micronutrient contents of canola (Brassica napus L.) cultivars grown in greenhouse conditions. 12 canola cultivars (Marinca, Kosa, Spok, Semu DNK207 NA, Tower, Liraspa, Star, Tobin, Helios, Semu 209/81, Regent and Lirawell) were exposed to salinity treatments (150 mM NaCl and control). Shoot, leaf and root dry weights of all the cultivars at 45-day-old plants were determined. Micronutrient contents (Fe, Mn, Cu and Zn) of the leaves, stems and roots were also analyzed. Salinity stress negatively affected the canola cultivars and the extent of effects varied depending on the salt tolerance of the cultivars. Generally, salinity reduced the plant growth and dry weights. Fe, Mn, Cu and Zn concentrations were high in the roots when compared with those in the leaves and shoots in the salt applied samples. It was observed that, micronutrient contents showed some variation in the different plant parts of the canola cultivars as a result of salt applications to the growing media. Iron (Fe), manganese (Mn) and copper (Cu) content increased in all the plant parts with salt applications except for some cultivars. On the other hand, when mean data of the cultivars were considered, it could be said that zinc (Zn) content of the leaves was not significantly affected by the salt stress.
Chemical Composition of Essential Oil of Mentha Longifolia L. Subsp Longifolia Growing Wild
(Pakistan Botanical Soc, 2017) Okut, Nese; Yagmur, Mehmet; Selcuk, Nilufer; Yildirim, Bunyamin
The essential oil of Mentha longifolia L., is very important to some culinary usage and antimicrobial activity. The essential oil of Mentha longifolia subsp. longifolia growing in the Bahesaray area (Van Province, Turkey) was studied. This study designed for determine of essential oil constituent Mentha longifolia subsp. longifolia that collected from wild area. Mint leaves sample essential oils obtained by hydro distillation and essential oil components were determined using GC-MS. The main component of wild grown Mentha longifolia subsp. longifolia was Menthone (19.31%). Second one and others were Pulegone (12.42%), Piperitone (11.05%), Dihydrocarvon (8.32%), Limonene (6.1%), 3-Terpinolenone (5.66%), 1,8-Cineole (4.37%), Germacrene D (3.38%) and Caryopyllene (3.19%), respectively.
Chemical Composition, Antimicrobial and Antioxidant Properties of Schinus Molle L. Essential Oil From Turkey
(Taylor & Francis Ltd, 2017) Eryigit, Tamer; Yildirim, Bunyamin; Ekici, Kamil; Cirka, Mustafa
In traditional medicine, Schinus molle was used in treating a variety of wounds and infections due to its antibacterial and antiseptic properties. Based on this, the chemical constituents, antimicrobial and antioxidant activities of Schinus molle fruit essential oils were investigated. The hydro-distillation was used for the essential oil extraction of Schinus molle fruits and the chemical composition of extracted essential oils were identified by GC-MS. Antibacterial activities were evaluated by the agar disc diffusion method. Antioxidant properties were determined according to the TEAC method. The major components were identified as alpha-phellandrene (31.74%), limonene (16.82%), beta-phellandrene (16.49%) and p-cymene (11.36%), respectively. The results showed that essential oils of the fruits had weak biological effects against five of eight tested bacterial and yeast species. The essential oil extract prepared from S. molle fruits had weak antioxidant activity with 4.7 +/- 1.2 mM Trolox values which monitored slightly good radical scavenging activities.
Chemical Composition, Antioxidant and Antibacterial Properties of Juniperus Excelsa M. Bieb. Leaves From Turk?ye
(Univ Life Sciences Lublin, 2023) Eryigit, Tamer; Yildirim, Bunyamin; Ekici, Kamil
Juniper species are especially used in traditional medicine due to their analgesic, diuretic, antibacterial, anti-microbial, anti-inflammatory, and liver-protective effects. The goal of the present study was to investigate the chemical compounds, antioxidant and antimicrobial properties of essential oil ofJuniperus excelsa M. Bieb., a species of juniper with a large spread area in Turkey. Essential oils were extracted by the hydro-distillation method. The components of the hydro distilled oil samples were analyzed by gas chromatography-mass spec-trometry (GC-MS). In the study, the essential oil was evaluated for its antibacterial activity against six bacte-rial strains consisting of two Gram (+) and four Gram (-) by the agar disc diffusion method. Additionally, the antioxidant properties of the oil were determined by TEAC/ABTS+ free radical scavenging assay. As a result, there were 27 compounds in the essential oil of J. excelsa. Of the 27 essential oil components identified, alpha-pinene (40.59%), alpha-cedrol (18.15%), beta-myrcene (4.53%), and limonene (3.84%) were determined as the main components in total 91.54% of the essential oil. As a result, it was observed that the examined juniper essential oil showed a weak but effective antibacterial activity against all bacterial strains compared to the control agents, and also, the examined oil had low but valuable antioxidant activity.
Chemical Diversity of Essential Oil From Leaves of Ziziphora Clinopodioides Growing in Van, Turkey
(Parlar Scientific Publications (p S P), 2018) Okut, Nese; Selcuk, Nilufer; Yagmur, Mehmet; Yildirim, Bunyamin
Blue Mint Bush (Ziziphora clinopodioides) belongs to the family Lamiaceae and grows in Iran, Iraq, Central and Eastern part of Turkey. The leaves of Ziziphora clinopodioides L. samples were collected on the beginning of July (2010) from Kocko-pru area (Van Province, Turkey) at an altitude of 1924 m and described accordingly. Hydrodistillation was used to isolate the essential oil of the plant and then 33 constituents were identified by using GC-MS. The majority presented compounds of the essential oil were Pulegone (29.31%), Menthone (21.79%), 1,8-Cineole (15.31%), beta-Pinene (8.74%), Limonene (3.91%), alpha-Pinene (3.17%), 3-Terpinolenone (3.09%), beta-Phellandrene (2.88%), respectively. Menthofurane, Isopulegone and Germacrene D are represented by low concentrations. A cluster analysis was carried on the essential oil composition of Z. clinopodioides to identify homogenous groups.
Effect of Phosphorus Application and Rhizobium Inoculation on the Yield, Nodulation and Nutrient Uptake in Field Pea (Pisum Sativum Sp Arvense L.)
(Medwell online, 2009) Erman, Murat; Yildirim, Bunyamin; Togay, Necat; Cig, Fatih
A field experiment was conducted during 2005-06 and 2006-07 growing seasons in Van, Turkey, to determine the effects of Rhizobium inoculation and different levels of phosphorus on the yield and nutrient uptake of field pea (Pisum sativum sp. arvense L.). Phosphorus application had significant effect on the plant height, number of branches, root and shoot dry weight, number of nodule, seed and biomass yields, number of pod, crude protein rate and phosphorus content of seed in both years. There was linear increase in the root dry weight, nodule number, crude protein rate and phosphorus content of seed up to 90 kg P(2)O(5) ha(-1) application. The highest seed yield was obtained under treatment 60 kg P(2)O(5) ha(-1)+ inoculation with 2855.0 and 2828.3 kg ha(-1) in 2005-06 and 2006-07, respectively. Plant height, number of branches, shoot dry weight, number of pod, seed and biomass yields increased up to 60 kg P(2)O(5) ha(-1) and then decreased at 90 kg P(2)O(5) ha(-1). Inoculation treatment had also significant effect on the plant height, number of branches, root and shoot dry weight, number of nodules, seed and biomass yields, number of pod, crude protein rate and phosphorus content of seed in both years. The highest values regarding these parameters were obtained from inoculated plants, whereas the lowest values were obtained from the uninoculated plants.
Effect of Salinity Stress on Plant Fresh Weight and Nutrient Composition of Some Canola (Brassica Napus L.) Cultivars
(Academic Journals, 2011) Tuncturk, Murat; Tuncturk, Ruveyde; Yildirim, Bunyamin; Ciftci, Vahdettin
Soil salinity is a major limitation to crop production in many areas of the world. A pot experiment was carried out with rapeseed cultivars in order to investigate the effects of salinity stress on plant development and nutrient composition. For the salinity studies, 150 mM NaCl concentration was applied to 12 rapseed cultivars (Marinca, Kosa, Spok, Semu DNK207 NA, Tower, Liraspa, Star, Tobin, Helios, Semu 209/81, Regent and Lirawell) under the greenhouse conditions. All the cultivars were harvested after 45 days from planting. Green plants parts were weighted. Harvested rapeseed plants were separated into root, shoot and leaf parts for nutrient (K+, Na+, K+/Na+, Ca2+ and Cl-) analysis. As shown in this study, salinity stress affected negatively all the canola cultivars investigated. Generally, salinity reduced the green parts' weight. K+, Ca2+ and K+/Na+ contents in plants decreased by salt stress, but Na+ and Cl- content in the roots, shoots and leaves of all the cultivars significantly increased. In the salt treatment, the K+ and Ca2+ concentrations were the highest in the leaf samples as compared to root and shoot samples. Furthermore, the highest concentration of Na+ and Cl- was observed in the leaf and shoot. Under salinity, Regent and Lirawell cultivars retained the highest K+ and Ca2+ content in leaves, with respect to the K+ content. The effect of NaCl treatment on the canola cultivars' growth was not considerable.
Effect of Seed Rates on Yield and Yield Components of Anise (Pimpinella Anisum)
(indian Counc Agricultural Res, 2006) Tuncturk, Murat; Yildirim, Bunyamin
Effect of Sowing Date and Varieties on Essential Oil Ratio and Essential Oil Components of Coriander (Coriandrum Sativum L.) in Van Ecological Condition
(Medwell online, 2012) Yildirim, Bunyamin; Gok, Nihat
This study was carried out as random blocks experiment design that three recurrent in Van ecological condition in 2009 infour sowing time (April 5 and 20, May 5 and 20) which to determine essential oil ratio and components of one local coriander population and two coriander varieties. The highest essential oil ratio was obtained as 0.45% from Gurbuz variety. The highest essential oil ratio was obtained as 0.5% from May 20 sowing time. In terms of essential oil it was no different in varieties and in sowing times. The essential oil yield average yields changed from 0.09-0.116 L ha(-1). Linalool which essential oil component ratio was changed from 68.3-74.8%. Gamma terpinen ratio was changed from 7-8%. The highest gamma terpinen ratio was obtained as 8.8% from April 20 sowing time.
Essential Oil Composition of Yarrow Species (Achillea Millefolium L. and Achillea Wilhelmsii L.): Antioxidant and Antibacterial Activities of Essential Oils
(Univ Babes-bolyai, 2023) Yildirim, Bunyamin; Ekici, Kamil; Kocak, Mehmet Zeki
Of the medicinal plants' cosmos, yarrow species (A. millefolium L. and A. wilhelmsii L.) are of the reputed species due to their phytochemical composition and thereby antioxidant and antibacterial activities. Owing to the high diversity in chemical composition and production of essential oil, the species deserves to be investigated more. In this context, wild yarrow plants were collected in Eastern Anatolia region (Van, Turkiye) and then the dried samples of the plants were subjected to hyd-rodistillation for essential oil extraction. In addition, the essential oils were assayed for their potential antioxidant and antibacterial activities. Gas Chromatography Mass Spectrometry (GC-MS) analysis revealed the presence of 1,8-cineole (75.19%), alpha-phellandrene (5.53%), P-eugenol (5.53%), camphor (5.45%), alpha-terpineol (2.09%), beta-pinene (1.66%), camphene (1.20%), alpha-pinene(1.02%) from A. millefolium L. However, A. wilhelmsii was characterized with menthoglycol (35.84%), 1,8-cineole (34.04%), endo-borneol (9.93%), chrysanthenil acetate (4.76%), thymine (3.66%), terpinene-4-ol (2.33%), camphene (1.66%), and verbenole (1.53%). Regarding scavenging activities of the species, A. wilhelmsii exhibited better activity than A. millefolium, with a value of 6.5 mM and 4.2 mM Trolox equivalents (TEAC) respectively. With respect to the antibacterial activity against three gram-negative and three gram-positive bacteria, essential oils of both species were compared with standard antibiotic discs (ampicillin and ofloxacin).
Ethnobotanical and Pharmacological Uses of Some Plants in the Districts of Karpuzalan and Adiguzel (van-Turkey)
(Medwell online, 2008) Yildirim, Bunyamin; Terzioglu, Oemer; Ozgokce, Fevzi; Turkozu, Didem
This study has been carried out in Karpuzalan and Adiguzel districts of Van province between the years 2006 and 2007. At the beginning, questionnaires have been conducted in order to learn what kind of plants is used for which purpose by the villagers. After this, these plants have been collected from the fields and identified in Yuzuncu Yil University, Faculty of Science and Letters, Department of Biology and they have been included in herbarium. Later, the villagers defined which of them are consumed for nutritional purposes; which of them are used in herby cheese consumed in the region widespreadly; which of them are used for medical purposes. As a result, the present paper presents new original plants used for drug industry on medical purposes (animal and human health).
Evaluation of Chemical Composition and Antimicrobial Activity of Vitex Agnus Castus L. Fruits' Essential Oils From West Anatolia, Turkey
(Taylor & Francis Ltd, 2015) Eryigit, Tamer; Cig, Arzu; Okut, Nese; Yildirim, Bunyamin; Ekici, Kamil
This study deals with the chemical composition and antimicrobial activity of essential oils of Vitex agnus castus L. The main constituents of the essential oils were characterized by GC-MS which resulted in the identification of 26 components, representing 100 % of the oil. The dominant compounds in the oil of fruits were trans-caryophyllene (19.17 %), sabinene (18.05 %) and 1,8-cineole (16.13 %), alpha-terpinyl acetate (6.91 %) and dihydroselarene (6.73 %). Antimicrobial activity was tested using the disc diffusion method. According to the inhibition zones, the essential oils were active against all of the tested microorganisms. The essential oils showed the susceptible inhibition zones, but they were less effective against bacterial strains compared to ampicillin and ofloxacin. The organisms most susceptible to these essential oils were Enterococcus faecalis ATCC 29212. However, further studies must be performed to confirm the safety of these oils for use as an antimicrobial agent.
The Influence of Nitrogen Doses on Yield and Yield Properties of Safflower (Carthamus Tinctorius) Varieties Under Micro-Climate Conditions of Igdir Plain - Turkey
(Taylor & Francis inc, 2021) Eryigit, Tamer; Aldemir, Resit; Kaya, Ali Rahmi; Tuncturk, Murat; Yildirim, Bunyamin
The growth and development of safflower are affected by several factors such as genotype, agronomic practices, and environmental conditions. One of the most important agronomic practices is fertilization. As a fertilizer, nitrogen is a basic element required for successful plant growth. In the study, it was aimed to determine the effects of different nitrogen doses (0, 100, 150, and 200 kg ha(-1)) on yield and yield properties of three safflower varieties (Remzibey-05, Dincer, and Yenice) under micro-climate conditions in the Igdir University Agricultural Research fields, Turkey during 2012 - 2013 according to the split-plot experimental design in randomized blocks with three replications. The investigation denoted that the differences among the varieties were found significant for all attributes except seed number per head. And also, the effect of differences between observation years and the effects of nitrogen rates were determined to be significant for all observed properties. Increasing the nitrogen rate increased all observed attributes. Seed oil content increased with nitrogen applications up to 100 kg ha(-1) but reduced again in higher nitrogen rates. In the study, the interactions of both factors had no significant effects on all observed attributes. The results of two years study show that the Yenice safflower cultivar as an alternative oil plant and the most economical nitrogen dose of 150 kg ha(-1) can be suggested for the maximum yield in the unit area where the experiment is carried out and in other regions with similar climatic conditions.
Relationships Between Yield and Some Yield Components in Pea (Pisum Sativum Ssp Arvense L.) Genotypes by Using Correlation and Path Analysis
(Academic Journals, 2008) Togay, Necat; Togay, Yesim; Yildirim, Bunyamin; Dogan, Yusuf
This research was carried out Yuzuncu Yil University, Agricultural Faculty experimental field in 2002-03 and 2003-04. The experiment was conducted to determine the relationship among yield and some yield components using correlation and path coefficient analysis. In the experiment 12 pea genotypes were used. The experiment was designed randomized complete blocks design with four replications. At the end of the study, positive and significant relationship were found among seed yield and pods per plant and biological yield in both years. The strongest and direct positive effects were the biological yield (p = 0.6500), numbers of pods per plant (p = 0.3137) and the seed yield. These were followed by first pod height (p = 0.2398) and number of seeds per pod (p = 0.2227).
Revealing Genetic Diversity and Population Structure in Türkiye's Wheat Germplasm Using Ipbs-Retrotransposon Markers
(Mdpi, 2024) Demirel, Fatih; Yildirim, Bunyamin; Eren, Baris; Demirel, Serap; Tuerkoglu, Aras; Haliloglu, Kamil; Bocianowski, Jan
Investigating the genetic diversity and population structure of wheat germplasm is crucial for understanding the underlying variability essential for breeding programs and germplasm preservation. This research aims to contribute novel insights with respect to the genetic makeup and relationships among these wheat genotypes, shedding light on the diversity present within the Turkish wheat germplasm. In this study, iPBS-retrotransposon markers were employed to analyze 58 wheat genotypes, encompassing 54 landraces and 4 cultivars sourced from Turkiye. These markers serve as genetic indicators that can be used to evaluate genetic variation, build genealogical trees, and comprehend evolutionary connections. The PCR products were visualized on agarose gel, and bands were scored as present/absent. The ten iPBS primers collectively yielded an average of 16.3 alleles, generating a total of 163 polymorphic bands. The number of alleles produced by individual markers ranged from 4 (iPBS-2386) to 29 (iPBS-2219). The genetic parameters were calculated using the popgen and powermarker programs. The genetic relationships and population structures were assessed using the ntsys and structure programs. Polymorphism information content (PIC) per marker varied from 0.13 (iPBS-2390) to 0.29 (iPBS-2386), with an average value of 0.22. Shannon's information index (I) was calculated as 1.48, while the number of effective alleles (Ne) and Nei's genetic diversity (H) were determined to be 0.26 and 0.31, respectively. Genotype numbers 3 (Triticum dicoccum) and 10 (Triticum monococcum) exhibited the maximum genetic distance of 0.1292, signifying the highest genetic disparity. Population structure analysis revealed the segregation of genotypes into three distinct subpopulations. Notably, a substantial portion of genotypes clustered within populations correlated with the wheat species. This population structure result was consistent with the categorization of genotypes based on wheat species. The comprehensive assessment revealed noteworthy insights with respect to allele distribution, polymorphism content, and population differentiation, offering valuable implications for wheat breeding strategies and germplasm conservation efforts. In addition, the iPBS markers and wheat genotypes employed in this study hold significant potential for applications in wheat breeding research and germplasm preservation.