Browsing by Author "Oral, E."

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Effect of Mycorrhiza Applications on Some Physiological and Macro-Micro Element Contents in Soybean (Glycine Max L.) Grown Under Salt Stress Condition
(Centenary University, 2025) Oral, E.; Tunçtürk, R.; Tunçtürk, M.; Nohutçu, L.; Şelem, E.
This study was carried out to determine the effects of mycorrhizal applications on some biochemical and macro/micro nutrient characteristics of soybean (Glycine max L.) under salt stress (0, 50, 100, 150, 200 mM NaCl). In the research investigated chlorophyll a (17.30-22.61 µg g-1 TA), chlorophyll b (3.05-5.78 µg g-1 TA), total chlorophyll (20.46-27.72 µg g-1 TA), carotenoids (3.57-4.72 µg g-1 TA), proline (0.43-1.81 µg g-1 TA), malondialdehyde (MDA) (13.1-18.3 nmol g-1), and several macro-and micro-elements, including Ca (9.43-12.8 g kg-1), K (9.97-11.8 g kg-1), Na (0.94-3.52 g kg-1), P (1.49-2.44 g kg-1), Mg (3.03-3.46 g kg-1), Zn (3.71-7.63 g kg-1), K/Na ratio (3.32-7.17%), Mn (23.6-56.5 g kg-1), Mo (0.81-1.26 g kg-1), Cu (0.76-1.78 g kg-1), As (2.17-5.26 g kg-1), Ni (0.99-1.97 g kg-1), Pb (0.07-0.12 g kg-1), Cd (0.06-0.13 g kg-1), Co (0.06-0.08 g kg-1) and Cr (0.78-1.48 g kg-1). As a result of the study; a decrease or an initialincrease followed bya decrease was observed inin chlorophyll a and b, total chlorophyll, carotenoids, P, Zn, K/Na, Ca/Na, Mn, Mo, Cu, As, Ni, Pb, Cd, Co and Cr contents in mycorrhiza-treated plants under salt stress. The levels of Ca, K and Na increased, while Mg levels remained statistically insignificant, following a fluctuating pattern.. Additionally, boron applications were found to increase the nitrogen balance index, MDA, flavonol, anthocyanin, antioxidant and phenolic contents. Overall, the study demonstrated that mycorrhiza applications have a beneficialand regulatory effect on the biochemical composition and macro/micro-element levels in soybean under salt stress. © 2025, Centenary University. All rights reserved.
The Effect of Phosphorus and Zinc Doses on Yield and Yield Components of Beans (Phaseolus Vulgaris L.) in Van-Gevas, Turkey
(Aloki Applied Ecological Research and Forensic inst Ltd, 2020) Bildirici, N.; Oral, E.
This research was carried out in Van-Geva$ in 2015 and 2016 with three replications according to the Divided Parcel Trial Design that was divided into random blocks. The experiment involved 2 bean varieties (Aras-98 and Seker-90) x 4 phosphoms dose (0.0, 40.0, 60.0 and 80.0 kg ha(-1)) x 4 zinc dose (0.0, 10.0, 25.0 and 50.0 kg ha(-1)) x 3 repetition = 72 parcels were planned and examined. In the experiment, 4 different phosphoms (P) doses were applied to the subparcels as TSP (P205) fertilizer. and to gold sub-parcels 4 different zinc (Zn) doses were applied as zinc sulfate (ZnS04.7H20) fertilizer. Two bean varieties used in the study on the effect of phosphoms and zinc doses on plant height (cm), the number of pods per plant (units of plant(-1)), number of branches (plant(-1)), seed yield (kg ha(-1)), harvest index (%) and the effect of protein (%) on grain was also investigated. According to the results obtained in 2015 and 2016, the highest grain yield was obtained from Sugar90 beans. In the first year, the highest grain yield was obtained from 3380.00 kg ha(-1) and 40.0 kg ha(-1) phosphoms and 10.0 kg ha(-1) zinc, while in the second year 4250.70 kg ha(-1) was obtained in the same phosphoms and zinc dose. As a result, it has been determined that due to degradation in the phosphoms balance in soil, the efficiency of utilization of zinc in plants affects the yield and quality characteristics.
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.
Effects of Various Plant Densities and Nitrogen Doses in Some Triticale (X Triticosecale Wittmack Ex. A. Camus) Cultivars in Van City Ecological Conditions
(Centenary University, 2016) Oral, E.; Ülker, M.
This study was conducted by randomized blocks divided by split-split plots trial design with three replications in Van city ecological condition 2009-2010 and 2010-2011 years. The research was planned and carried out with 4 nitrogen doses (2.7, 5.4, 8.1, 10.8 kg N/da) × 3 cultivars (Presto, Mikham-2002, Karma-2000) × 4 seed rate (350, 450, 550 ve 650 seed/m2) × 3 replication =144 parcel. According to the average of years, the plant height has been changed between (113.3-106.8) cm; the number of ears per square meter between (620-572) number; the number of grains per spike between (46.0-44.2); thousand grain weight between (40.4-38.7) g and grain yield between (3437-3270) kg ha-¹ respectively. Among the studied agricultural characters, plant height, the number of spike per square, the number of grains per spike and grain yield were increased depending on increasing nitrogen dose and sowing density in all varieties. In this study, according to the average years the high grain yield (5203 kg ha-1) was obtained from Karma-2000 variety, the third frequency (550 seed rate m-2) and the fourth dose of nitrogen (108 kg N da-1) application. Accordingly, Karma-2000 demonstrated superior performance in terms of plant height, spike number per square meter, number of grains per spike and grain efficiency. It was concluded that Karma-2000 varieties can be grown in the Van city ecological condition and winter with success. © 2016, Centenary University. All rights reserved.
Evaluation of Submucous Resection Without Turbinectomy on Subjective Sleep Quality, Daytime and Dream Anxiety in Patients With Nasal Septal Deviation: a Prospective, Single-Blind, Consecutive Trial
(Cambridge Univ Press, 2013) Gulec, T. C.; Yoruk, O.; Gulec, M.; Selvi, Y.; Boysan, M.; Oral, E.; Mazlumoglu, M.
Exploring Adaptation Abilities of Barley Genotypes in Van Growing Conditions for Biomass and Grain Yield
(Centenary University, 2023) Salih, S.; Öngün, B.; Özdemir, B.; Oral, E.; Altuner, F.; Demir Atmaca, Ş.; Ülker, M.
Discovering the variation among genotypes is an important criterion for selecting the suitable cultivar for a certain environment. The study aimed to explore the genetic variation among 17 genotypes of barley based on grain yield and some related traits. Plants were grown under field grown conditions in the 2019-2020 and 2020-2021 growing seasons, and plant height (PH), spike per square meter (SSM), spike length (SL), spikelets per spike (NSS), seed per spike (SPS), biological yield (BY), grain yield (GY), and thousand grain weight (TGW) were measured. Results indicated that PH ranged (51.7 to 81.33 cm) and (58.20 to 79.90 cm), SSM (374 to 582) and (418 to 701), SL (7.10 to 9.63 cm) and (6.87 to 9.13 cm), NSS (9 to 15) and (8 to 17), SPS (21 to 49) and (21 to 51), BY (3466.7 to 5905.3 kg h-1) and (3731.7 to 6080 kg h-1), GY (1442 to 2192 kg h-1) and (811.8 to 1763.7 kg h-1), TGW (34 to 55.67 g) and (33.47 to 52.63 g) for the first and second year of experiment respectively. The advanced lines measurement values were higher in the second year of the experiment. It can be concluded that the advanced lines Anka-08 and Anka-11 are promising in most of the parameters. Some of the old and new cultivars still preserve their yield potential. © 2023, Centenary University. All rights reserved.
Impact of Different Sowing-Times of the Quinoa (Chenopodium Quinoa Willd.) and Its Varieties on the Yield and Yield Components in Turkey-Mardin Ecology Condition
(Corvinus Univ Budapest, 2019) Altuner, F.; Oral, E.; Kulaz, H.
This research was planned to determine the correct sowing times of quinoa (Chenopodium quinoa Willd.) varieties under the ecological conditions of Turkey-Mardin. The study was conducted in three different sowing times (15 March, 30 March and 15 April) using 2 quinoa varieties in aqueous conditions in 2017 spring period with three repetitions. At the end of the research; according to the data obtained, the number of plants in the harvest (15.4- 29.2 plants/m(2)), plant height (73.9-90.3 cm), the main panicle length (31.1-43.9 cm), the number of panicle branches (23.7-29.7 units plant), thousand weight (3.37-3.46 g), grain yield (125.6-1339 kg ha(-1)), hectoliter weight (6220-6280 kg ha(-1)) and crude protein ratio (14.8-15.7%) ranged. The highest grain yield was obtained from the application of Valiente and Titicaca (April 15) with 1345-1333 kg ha(-1), respectively. As a result of these properties, it was concluded that the most suitable planting time for quinoa (Chenopodium quinoa Willd.) cultivation in Mardin may be the second week of April.
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.
Investigating the Quality of Durum Wheat Landraces and Determination of Parents To Use in Breeding Programs
(Corvinus Univ Budapest, 2019) Kendal, E.; Eren, A.; Dogan, Y.; Oral, E.; Koyuncu, M.
The study was conducted to evaluate the quality of durum wheat grain. For this reason, genetic resources are crucial for the identification of parents and the enrichment of the gene pool that can be used in the development of new varieties for better nutrition of people. For this purpose, 131 populations of landraces, 9 promising line and 5 new varieties were used. The experiment was set up in randomized blocks with 7 replications, according to the augmented (increased) experimental design in 2015-2016 growing season. In the study, we examined total nitrogen content, protein ratio, CIE (Commission Internationale Eclairage) wheat color analysis (L* brightness, b* jaundice, a* redness) of 145 genotypes of durum wheat seeds. According to analysis of variance, highly significant differences (P < 0.05 or P < 0.01) were determined for total nitrogen, protein content and CIE L* value, while differences were not significant for b* value and a* value. The superiority of the genotypes was determined by the first two principal components (IPC1 (principle component) and IPC2) in order to create a two-dimensional GT biplot. The sum squares of the first two components were accounted by 45.34% (PC1) and 40.03% (PC2) for genotypes. The GT (genotype x trait) biplot indicated that 9 (nine) sectors occurred among genotypes and quality parameters. On the other hand, three groups occurred among the quality parameters based on the genotypes. The scatter plot demonstrated that there is a high correlation between b* jaundice, and a* redness. The results showed that cultivars and more landraces have general adaptability for all quality parameters, while some genotypes (G79, G78), (G22, G102), (G3) and (G121, G5) showed specific adaptation for N (nitrogen), PC (protein content) and L*, a* and b* values, respectively. According to the biplot techniques, G36 came forward with the N, P and a* value and desirable landraces, G5 for b* value, G30 stable line for all quality parameters, while (G128, G61) and the majority of promising lines (L4, L6) did not come forward with any quality parameters. The results of the study indicated that the majority of landraces can be used as parents to improve the quality of durum wheat varieties. The study indicated that GT biplot can be used to evaluate the genotypes graphically to select the best genotypes for parents to use in breeding programs.
Karyological Analysis on Wheat Tir (Triticum Aestivum Var. Aestivum L. Spp. Leucospermum Körn.) Ecotypes in Lake Van Basin, Turkey
(Association of Agricultural Technology in Southeast Asia, 2022) Najafi, S.; Ulker, M.; Altuner, F.; Oral, E.; Ozdemir, B.; Jamal Salih, S.; Selem, E.
Karyotypic is studied within ecotypes species which are importantly found with different ecotypes, and it may possible showing specific genomic adaptation with their environmental growing conditions. Chromosome karyotype and morphology in wheat Tir by analyzing chromosomes in five ecotypes (Ahlat, Ercis, Muradiye, Patnos and central part of Van) in order to present the best instruction for cytogenetic studies in chromosome analysis was investigatred. Pre-treatment with %1 alpha-bromo naphthalene, fixation in karnoy 1, hydrolysis in NaOH and staining by %2 Aceto-Orcein were proved using root meristem segments followed by studying the microscopic preparations. Karyotype analysis of each ecotype. There was separately performed and showing several indices (TL: Total Length, LA: Long Arm, SA: Short Arm, Sat: Satellite and AR: Arm Ratio). The somatic chromosome numbers of all studied ecotypes are hexaploid with 2n=6x=42 and the averages of chromosomes length ranged from 4.60 ±0.02 µm to 16.05 ±0.02 µm. The longest chromosome was observed in chromosome number 1 from ecotype 3 which belongs to Muradiye and the shortest one was related to the chromosome number 21 from ecotype 4 from Patnos. © 2022 Association of Agricultural Technology in Southeast Asia. All rights reserved.
Place in Turkey and Region of Wheat Agriculture İn Van Province, Problems and Solutions
(Centenary University, 2019) Altuner, F.; Oral, E.; ülker, M.
In the province of Van, wheat cultivation has made in the 787 314 da area, and in return has produced 104 44 thousand tons of production and has obtained 132 6 kg/da yield. This corresponds to half of the yield in Turkey (280 kg/da). İf the yield in te province can be increased to average of Turkey,the same production would be possible to produce in half amount of area. The main reason for the decrease in productivity in province is the use of local varieties instead of high-efficiency and high quality registered varieties in wheat agriculture. Since the local varieties has not preferred in the flour industry, the sector supplies 80% of the raw material needed from outside the province. However, very fragmented and small-scale agricultural business structure, tractors and equipment is lower than Turkey’s average current, the plurality of fallow fields, such as technical information and material deficiency in production of some problems, is seen as the obstacles of wheat cultivation in the province. Some measures to be taken in order to eliminate these obstacles and increase the yield and quality will result that every relevant sector can be satisfied in wheat production. © 2019, Centenary University. All rights reserved.