Browsing by Author "Tuncturk, M."

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Chromosome Analysis of Quercus Castaneifolia
(Association of Agricultural Technology in Southeast Asia, 2021) Najafi, S.; Tuncturk, R.; Tuncturk, M.; Seyyedi, N.
The results showed that all studied cells of each population, the basic chromosome number was x=12 and all of them were diploid. Karyotype analysis of each population was conducted separately and several indices (TL: Total Length, LA: Long Arm, SA: Short Arm, CI: Centromer Index, AR: Arm Ratio, R-value, DRL%: Difference of Relative Length and TF%: Total Form) were determined. Karyotype formula was 12m in all studied populations. The length of chromosomes in all populations was estimated as 1.55-2.68 micrometers. The longest chromosome was observed in chromosome number 1 from population 4 (Gorghan) which was 2.68 micrometers and the shortest one was related to the chromosome number 12 from population 5 (Zanoos) which was 1.55 micrometers. Considering of chromosomal classification, all the studied populations were placed in class 1A of Stebbins which showed that there is a symmetry in the studied karyotypes. The other estimated indices also showed that in chromosomes are relatively symmetric in all populations that indicated this species is primitive and undeveloped. © 2021 Association of Agricultural Technology in Southeast Asia. All rights reserved.
Determining of Relationship Between Weed Seedbank in Soil and Weed Flora in Potato Areas
(Univ Namik Kemal, 2010) Kaya, I; Tuncturk, M.; Ozkan, O. U.; Anac, E.
In this study it was investigated in order to determine density of weed seeds and reflection to flora at Ercis and Ahlat. The most common weed species were determined as to Amaranthus retroflexus L. and Portulaca oleracea L. in dept 0-25 cm of soil reservoir at Ercis and Ahlat fields. The ratio of reflection to flora of seed reservoirs in soil is determined lower than 1% as well. But this ratio in Ercis is found 1.2% in 2007.
Effect of Humic Acid Applications on Physiological and Biochemical Properties of Soybean (Glycine Max L.) Grown Under Salt Stress Conditions
(Centenary University, 2023) Bahjat, N.M.; Tuncturk, M.; Tuncturk, R.
In the study, humic acid was applied to soybean (Glycine max L.), which has high economic value and importance, to determine the tolerance level of the plant against salt stress, and physical and chemical changes in the plant were observed. The study was carried out in the climate room of Van Yuzuncu Yil University Faculty of Agriculture, Department of Field Crops in 2019. In the research, İlksoy soybean variety was used. The experiment was carried out in 4 factorial orders according to the factorial experiment was designed based on Completely Randomized Design. In the research, four different Humic acid doses (0, 500, 1000 and 2000 ppm) and 3 different NaCl salt doses (0, 125 and 250 mM) were used. In the study, root length, stem length, root fresh weight, stem fresh weight, root dry weight, stem dry weight, leaf area, chlorophyll content, ion leakage in leaf tissues, lipid peroxidation level (MDA), relative water content and membrane resistance index in leaf tissues were determined. Properties such as index were also examined. As a result of the study, the longest root was 38 cm for the control plots that salt and humic acid didn’t apply to the plants. The highest root fresh weight was 2.08 g and the stem fresh weight was 1.87 g of the plots where 500 ppm humic acid dose applied. In addition, the plants with the highest chlorophyll ratio was 51.05 under 250 mM salt applied without humic acid application. © 2023, Centenary University. All rights reserved.
Effect of Humic Acid Applications on Some Nutrient Contents of Soybean (Glycine Max L.) Cultivars
(Scibulcom Ltd, 2016) Tuncturk, R.; Kulaz, H.; Tuncturk, M.
This study was carried out to determine the effects of humic acid applications to some nutrient concentrations of soybean cultivars (Stressland, Cisne and 54240) under the greenhouse conditions in 2010 year. In study, the effect of different humic acid (control, 400,800 and 1200 ml/100 kg seed) applications and soybean cultivars (Cisne, Stressland and 54240) on mineral ions content in various plant organs of soybean (Glycine max. L.) was investigated. Soybean plant was divided into leaf, shoot and root parts for nutrient (Ca, Na, K, P, Fe, Mn, Cu and Zn) concentration measurements and were analysed. Results indicated that the nutrient concentration in plant tissues like leaf, shoot and root of soybean was strongly affected by all humic acid treatments. Usually, nutrient concentration in all parts of plants was increased with in creasing of humic acid doses. It was determined that increased Ca, Na, K, P and Fe contents while decreased Mn, Cu and Zn contents in plant organs of soybean after 800 ml/100 kg humic acid application.
Effect of Rhizobacteria and Microalgae Treatments on Some Physiological and Biochemical Parameters of Fenugreek (Trigonella Foenum-Graecum L.) Grown Under Drought Stress
(Agricultural Research Communication Centre, 2022) Yolci, M. S.; Tuncturk, R.; Tuncturk, M.; Ceylan, S.; Arvas, Y. E.
Background: In this study, the effects of deficit irrigation (DI) (normal=control, 1/2 reduced and 3/4 reduced) and some beneficial rhizobacteria (Azospirillum lipoferum, Bacillus megaterium) and microalgae (Chlorella saccharophilia) on some physiological and biochemical parameters of fenugreek (Trigonella foenum-graecum) were investigated. Methods: The experiment was carried out in a fully controlled climate cabinet with 4 replications in factorial order according to the completely randomized plot trial design. Fenugreek (Trigonella foenum-graecum) plant was used as material. The study aims to investigate the effects of different deficit irrigation treatments (normal (control), 1/2 reduced and 3/4 reduced) and some rhizobacteria (Control= R0, Azospirillum lipoferum= R1, Bacillus megaterium= R2) and microalgae (Chlorella saccharophilia= R3) on the growth and development of fenugreek plants. Result: Relative water content and membrane durability index values of leaf tissues decreased due to deficit irrigation applications, while ion leakage in leaf tissues, MDA and total phenolic substance content increased in leaf tissues. However, it was determined that they had positive effects on ion leakage in leaf tissues, total phenolic and flavonoid substance amounts of rhizobacteria and microalgae applications, but, membrane durability index in leaf tissues and MDA contents were affected as negative compared to the control.
The Effect of Rhizobacteria in the Reducing Drought Stress in Soybean (Glycine Max L.)
(Agricultural Research Communication Centre, 2021) Oral, E.; Tuncturk, R.; Tuncturk, M.
Background:This study was carried out to determine the effects of rhizobacteria and blue green algae applications on some physiological properties of soybean (Glycina max L.) grown under water stress. Methods: The experiment was conducted in factorial order with 4 replications according to the randomized plot trial design. In the research, Arisoy variety belonging to soybean (Glycine max L.) species was used. In the experiment, it was aimed to examine the effects of three different irrigation levels (100, 50 and 25%) on some physiological characteristics of soybean with a control (control (B0), two different bacteria used. In this study, strains R1 of Azospirillum lipoferum bacteria, strains numbered 98 belonging to Bacillus megaterium bacteriaein and one blue green algae (Chlorella saccharophilia) were used. Result: According to the average data obtained, root length is 24.75 cm- 30.85 cm, seedling length 28.10-36.57 cm, root fresh weight 1.10-1.43 g, seedling wet weight 1.55-2.41 g, root dry weight 0.15-0.18 g, seedling dry weight 0.38-0.46 g, azote balance index 70.6482.90 (dualex value), flavonol 0.375-0.398 (dualex value) and anthocyanin 0.016-0.045 (dualex value), with water restriction showed a decrease in most of these values. It has been determined that the rhizobacteria and blue-green algae have a decreasing and regulating effect on the physiological properties examined.
Effect of Winter Sowing and Different Fertilizer Sources on Physiological Parameters and Yield Components of Dragon’s Head (Lallemantia Iberica Fisch. & C.a.mey.)
(Centenary University, 2024) Maddahi, S.; Rahimi, A.; Tuncturk, M.; Moghaddam, S.S.; Tuncturk, R.; Pourakbar, L.
The effects of autumn sowing and chemical, organic, and biological fertilizer sources were explored on yield components and physiological traits of dragon’s head (Lallemantia iberica Fisch. & C.A.Mey). The study was conducted as a factorial experiment based on a randomized complete block design with three replications in a field experiment in the 2017-2018 crop year. The fertilizer treatments included organic fertilizers (vermicompost, manure, and humic acid), biofertilizer (Thiobacillus mixed with sulfur), chemical fertilizer (macro NPK), and control (no fertilizer). The studied traits included seed yield per ha, harvest index, biological yield per ha, chlorophyll a, chlorophyll b, carotenoid, proline, and dissolved carbohydrate. The results of the comparison of the means revealed that the winter sowing outperformed the spring sowing evidently and increased traits like seed yield per ha, biological yield per ha, and harvest index significantly. The fertilization of the plants in both sowing seasons, especially in the winter sowing, increased seed yield per ha, biological yield per ha, and harvest index so that the vermicompost-fertilized winter-sown plants produced the highest seed yield per ha (0.91 g), whereas the application of manure was related to the highest harvest index in the winter sowing (27.9%). The highest biological yield (8797 kg ha-1) was related to the treatment of Thiobacillus of the winter-sown plants. Proline content was higher in the spring sowing plants, and the control treatment in the spring sowing had the highest proline content (0.120 mg g-1). Concerning dissolved carbohydrates, the spring sowing and the unfertilized plants had the highest content (20.3 mg g-1). On the other hand, chlorophyll a, chlorophyll b, and carotenoid were higher in the treatments of Thiobacillus and vermicompost, which resulted in achieving higher yields due to the increase in photosynthesis rate. According to the results, the winter sowing of the dragon’s head in the Azerbaijan region of Iran and the use of Thiobacillus and vermicompost could be recommended for obtaining plants with optimum quality parameters. © 2024, Centenary University. All rights reserved.
Effect of Zinc Applications on Some Nutrient Concentrations of Soybean (Glycine Max L.) Cultivars
(Scibulcom Ltd., 2017) Kulaz, H.; Tuncturk, R.; Tuncturk, M.
This study was carried out to determine the effects of zinc applications on some nutrient concentrations of soybean cultivars (Stressland, Cisne and S4240) under the greenhouse conditions in 2010. In this study, the effect of different zinc dose applications (Control, 5, 10 and 15 mg/kg soil) on mineral ions content of various plant organs of soybean (Glycine max. L.) cultivars were investigated. Soybean plant was divided into leaf shoot and root parts for nutrient (Ca, Na, K, P, Fe, Mn, Cu and Zn) concentration measurements and were analysed. Results indicated that the nutrient concentrations in plant tissues like leaf, shoot and root of soybean were strongly affected by all zinc treatments. Nutrient concentrations in all parts of plants were increased with increasing zinc doses. Mn content in shoot and Na content in the root of soybean have been found to decrease after 10 mg zinc application.
Effects of Different Sowing Times and Phosphorus Application on Yield and Quality of Camelina (Camelina Sativa L. Crantz)
(Centenary University, 2019) Tuncturk, R.; Kulaz, H.; Tuncturk, M.
This study was carried out for determination effects of sowing time and phosphorus applications on several yield and quality components of Camelina sativa (L.) Crantz during 2014-2015 years in Van/Turkey ecological conditions. The factorial experiment was designed based on split plot with two factors including (A) sowing times (7-10 April, 22-25 April and 7-10 May) and (B) phosphorus fertilization (0, 40 and 80 kg ha-1 P2O5) in three replicates. Several yield and quality parameters such as plant height, first capsule height, number of branches, number of capsules, number of seeds in each capsule, thousand seed weight, seed yield, oil content as well as yield were measured. Results showed that sowing times had significant effects on all parameters except for seed numbers per capsule and oil contents (P<0.05). The most values for first capsule height (28.86 cm) and thousand seeds weight (0.94 gr) observed at 7-10 April sowing time, while the highest amounts of number of branches (12.48 branch plant-1), number of capsule (130.33 capsule plant-1), seed yield (1128.6 kg ha-1) and oil yield (328.0 kg ha-1) were obtained at 22-25 April and 7-10 May. On the other hand, the effects of phosphorus application was statistically significant (P<0.05) on first capsule height, number of branches, number of capsules and thousand seeds weight. The most value for first capsule height (28.56 cm) was determined using 40 kg ha-1 P2O5 application, while the highest number of branches (12.41 branch plant-1), number of capsules (142.85 capsule plant-1) and thousand seeds weight (0.95 gr) were observed by using 80 kg ha-1 P2O5. © 2019, Centenary University. All rights reserved.
Effects of Humic Acid and Rhizobium Inoculation on the Yield and Quality of Fenugreek (Trigonella Foenum-Graecum L.)
(Scibulcom Ltd, 2017) Tuncturk, R.; Tuncturk, M.
This study was conducted in Van province, Turkey during summer season in 2010-2011. Field trials were designed according to randomised complete block design (RCBD) with three replications at the experimental fields of Faculty of Agriculture in Yuzuncu Yil University. Four humic acid (HA) doses (0, 300, 600 and 900 kg ha(-1)) were applied to fenugreek seeds (inoculated or un-inoculated). In the study, plant height (cm), number of branches (branch plant(-1)), number of pods (pod plant(-1)), pod length (cm), number of seeds in pod (seed pod(-1)), thousand-seed weight (g), yield per plant (g plant(-1)), seed yield (kg ha(-1)), protein content (%) and oil content (%) were determined. Results showed that plant height, number of pods, number of seeds in the pod, thousand-seed weight, yield per plant and seed yield were significantly increased using different humic acid concentrations but branch numbers in the plant as well as pod lenght, protein and oil content did not affected. Further, the highest seed yield was determined as 916.0 kg ha(-1) from the highest HA3 (900 kg ha(-1)) applications while the lowest yield (714.5 kg ha(-1)) was obtained from control plots. In similar way, it was detected that seed yield increased by Rhizobium inoculations. The seed yields were obtained as 835.0 and 796.0 kg ha(-1) in the first and second year, respectively.
The Effects of Varying Nitrogen Doses on Yield and Some Yield Components of Black Cumin (Nigella Sativa L.)
(2012) Tuncturk, R.; Tuncturk, M.; Ciftci, V.
This study was carried out to determine the effects of different nitrogen doses (0, 20, 40, 60 and 80 kg ha -1) on the yield and some yield components of black cumin (Nigella sativa L.) in Van ecological conditions in 2006 and 2007. Field trials were designed by Completely Randomized Block Design with three replications at the experimental fields of Agricultural Faculty of Yuzuncu Yil University. In the study, plant height (cm), the number of branch (branch plant -1), the number of capsule (capsule plant -1), the number of seeds in the capsule (seed capsule -1), thousand-seed weight (g) and seed yield (kg ha -1) were determined. In conclusion, the effects of nitrogen doses on the yield and some yield components were statistically significant except for thousand-seed weight and the number of seeds in the capsule. Plant height, the number of branch, the number of capsule and seed yield increased by increasing nitrogen doses. According to the results, the highest values were obtained in seed yield (575 kg ha -1), the number of capsule (7.5 capsule plant -1) and the number of branch (4.51 branch plant -1) from 60 kg N ha -1 application.
The Effects of Varying Phosphorus Doses on Yield and Some Yield Components of Black Cumin (Nigella Sativa L.)
(2011) Tuncturk, M.; Tuncturk, R.; Yildirim, B.
This study was carried out to determine the effects of different phosphorus doses (0, 20 and 40 kg/ha) on yield and some yield components of black cumin (Nigella sativa L.) in Van ecological conditions in 2006 and 2007. Field trials were designed by Completely Randomized Block Design with three replications at the experimental fields of Agricultural Faculty of Yuzuncu Yi{dotless}l University. In the study, plant height (cm), the number of branch (branch/plant), the number of capsule (capsule/plant), the number of seeds in the capsule (seed/capsule), thousand-seed weight (g) and seed yield (kg/ha) were determined. According to statistical analysis, significant differences were determined among the phosphorus doses applications for the number of capsule, thousand-seed weight and seed yield. Seed yield increased by increasing phosphorus doses. According to the results, the highest seed yield (597 kg/ha) and thousand-seed weight (2.48 g) were obtained from 40 kg P/ha fertilizer application. The highest mean values for the number of capsule (5.68 capsule/plant) resulted in 20 kg P/ha application.
Effects of Vermicompost, Compost and Animal Manure on Vegetative Growth, Physiological and Antioxidant Activity Characteristics of Thymus Vulgaris L. Under Water Stress
(Centenary University, 2023) Rahimi, A.; Gitari, H.; Lyons, G.; Heydarzadeh, S.; Tuncturk, M.; Tuncturk, R.
This study investigated the effect of organic fertilizers on vegetative growth and the physiological and antioxidant activity characteristics of thyme plants grown under stress. A factorial experiment was conducted according to randomized complete block design with 12 combinations and 3 replications in the 2018 growing season. The experiment factors were the implementation of organic fertilizers at 4 levels (vermicompost, manure compost, animal manure, and control) and irrigation regime at 3 levels (Irr1, Irr2, and Irr3, respectively, irrigation after 60, 90, and 120 mm evaporation from A pan). The results showed that With delayed irrigation, the chlorophyll a and b contents, total chlorophyll, and carotenoid decreased, while the application of low water stress enhanced the amount of oil and the oil yield with the respective highest values of 2.61% and 3.68 g/m under mild stress conditions. Nonetheless, higher values for the aforementioned properties were noted with the application of vermicompost. Water deficit decreased nutrient uptake (K, P, and N) and relative water content, biological yield, and seed yield of thyme, indicating that thyme was sensitive to drought, and organic fertilizers application improved nutrient uptake (K, P, and N) and relative water content, biological yield and seed yield of the plant within irrigation levels. The activities of catalase, superoxide dismutase and ascorbate peroxidase were reduced under organic fertilizers such as vermicompost and manure compost as compared with control under drought stress. The plants of thyme showed a good response to organic fertilizers under water deficit circumstances, with vermicompost being the most effective. © 2023, Centenary University. All rights reserved.
The Impact of Salt (Nacl) Stress on Germination Characteristics of Gibberellic Acid Pretreated Wheat (Triticum Durum Desf) Seeds
(Corvinus Univ Budapest, 2019) Oral, E.; Altuner, F.; Tuncturk, R.; Tuncturk, M.
This research was conducted to examine the effects of gibberellic acid (GA3), which was treated to wheat (Triticum durum Desf) seeds before germination, on their germination and the seedling growth under saline conditions. Durum wheat Guney Yildizi variety, four different GA3 (0 (control), 100, 200 and 300 ppm), and four different salt (0 (control), 50 mM, 100 mM and 200 mM NaCl) concentrations were used in the research. Germination power, germination ratio (%), germination index, mean germination time, sensitivity index (%), radicula length (cm), plumula length (cm), radicula fresh weight (mg), radicula dry weight (mg), plumula fresh weight (mg), and plumula dry weight (mg) were examined. The results indicated that the increasing doses of salt prevented germination and growth parameters of wheat (Triticum durum Desf) seeds. It was observed that the doses of GA3 (Gibberellic acid), which were increased gradually before the doses of salt (NaCl), affected germination and growth positively and significantly. The best results of germination characteristics of wheat seed were obtained from the combination of 300 ppm Gibberellic acid + 0 mM (control) salt.
Lead Concentrations of Herbs Used in Van Herby Cheese
(Natural Product Incorporation, 2011) Tuncturk, M.; Tuncturk, R.; Sekeroglu, N.; Ertus, M.; Ozgokce, F.
Van Herby Cheese is a traditional milk product including local herb species in eastern Turkey. This special milk product was previously produced only for the local market, but industrial scale production and marketing have recently started in the region. However, some quality characteristics such as microbial flora and heavy metal concentrations of this novel product need to be investigated. In this study, lead concentrations of 28 different herbs mostly used in Van Herby Cheese were analyzed by AAS. The highest lead concentration of 1.69 mg kg-1 of the analyzed herbs was found in Mentha longifolia (L.) Hudson subsp. longifolia.
Nutrient Content of Three Edible Wild Plants From Polygonaceae Family
(Scibulcom Ltd., 2017) Tuncturk, M.; Celen, A.E.; Tuncturk, R.
Polygonaceae family has some important species which grow wild in Turkey. These species have been consumed commonly as raw in salads, cooked as a meal and used as medicinal purposes in folkloric medicine. In this study, nutritional value and mineral compositions of used parts of some plants from Polygonaceae family that grows wild in Van district of Eastern Anatolia, Turkey were determined. Rheum ribes L., Rumex acetosella L. and Rumex scutatus L. were the investigated species. As nutritional value, dry matter, total ash, N %, % crude protein, % crude fibre and pH were determined. Also, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, P, Pb, S and Zn were investigated in plant samples. According to the results, species studied had different chemical compositions. Rheum ribes L. and Rumex scutatus L. had richer chemical composition than Rumex acetosella L.. In general, these edible wild species from Polygonaceae family could be useful and safe for human consumption and health.
Selenium Concentrations of Some Spices Commonly Used in Turkey
(International Society for Horticultural Science, 2014) Sekeroglu, N.; Ozkutlu, F.; Tuncturk, M.
In the millennium age, people have realized that natural food and healthcare products are more useful for them than those of modern products rich in chemicals. Thus, consumption of herbal drugs and spices has started to increase rapidly in the last two decades all over the world. Related to this high demand and consumption of these products, some food safety defects due to presence of heavy metal residues in some products were fixed in some countries. In this concept, studies on determining heavy metal concentrations of these natural products and their derivatives have a great interest. Among these heavy metals, some of them were dangerous to human health, but some of them like selenium, in acceptable concentrations, were very important for good health and conservative properties of health problems such as cardiovascular diseases. Meanwhile, studies on investigating selenium contents of some food items are up to date in scientific area. In this study, selenium concentration in some spices and herbal drugs, commonly used in Turkey, was determined by atomic absorption spectroscopy (Varian, Cary 300 BIO, UV Visible). According to laboratory analysis, selenium concentrations of the analyzed plant samples varied between 9 and 889 μg kg-1. Among these samples, the highest selenium concentration was found in nutmeg (Myristica fragrans) and the lowest value was found in red pepper (Capsicum annuum) No. 13. © ISHS.
Study on Effects of Different Sulphur Doses on Yield and Quality of Safflower (Carthamus Tinctorius L.) Cultivars
(Scibulcom Ltd, 2017) Tuncturk, R.; Tuncturk, M.
This study was carried out during summer in 2010-2011 at the experimental fields on Faculty of Agriculture in Van Yuzuncu Yil University, Van province, Turkey. Different sulphur doses (0, 25 and 50 kg ha(-1)) were applied on safflower cultivars including Dincer (C1), Remzibey (C2) and Yenice (C3) in a randomised complete block design (RCBD) with three replicates. Several characteristics such as plant height (cm), number of branches (branch plant(-1)), number of secondary branches (piece), number of heads in the plant (piece), number of seeds per head (piece), thousand-seed weight (g), seed yield (kg ha(-1)), head diameter (cm), oil content (%) and protein content (%) were determined. Results showed that plant height, number of secondary branches, number of seeds per head, thousand-seed weight, seed yield, head diameter, oil content and protein content were significantly increased using different sulphur concentrations, but branch numbers as well as number of heads in the plant were not affected. The highest seed yield (1109.3 kg ha(-1)) was obtained at 50 kg ha(-1) sulphur concentration while the lowest yield (929.8 kg ha(-1)) was observed in control plots. The seed yields were 1039.8 and 1000.0 kg ha(-1) in the first and second year, respectively.