Yazarlar

  • MakaleYalnız künye2021
    EFFECTS OF VERMICOMPOST FERTILIZER ON THE YIELD AND OIL QUALITY IN SUNFLOWER (Helianthus annuus L.) VARIETIES

    Gul, Volkan; Gidik, Betul; Girgel, Umit

    This study was carried out in 2018 on an experimental field of Bayburt University in order to demonstrate the effect of different doses of vermicompost on the yield and oil quality in oilseed sunflower varieties. The experiments were carried out in randomized full-block design with three replicates. In the experiments, it was found that administering 100 kg da(-1) of vermicompost to the sunflowers yielded the best results in terms of grain yield (130.81 kg da(-1)), fat ratio (48.21%). and fatty acids parameters (saturated fatty acid ratio 15.30%. unsaturated fatty acid ratio 84.71%). In conclusion, we are of the opinion that, although there is an insufficient number of studies on oil crops. with the help of similar future studies in which vermicompost and other organic fertilizers are compounded, a humanand environment-friendly organic production can be realized by increasing the yield as well as the quality.

    AtıfWoS1
    Web of Scienceİncele
  • DüzeltmeYalnız künye2021
    INNOVATIVE FLOW RISK ASSESSMENT WITH CLIMATE CHANGE PERSPECTIVE IN YESILIRMAK BASIN (vol 29, pg 514, 2020)

    Serencami, Ugur; Dabanli, Ismail

  • MakaleYalnız künye2021
    MORPHOMETRIC ANALYSIS TO INFER HYDROLOGICAL BEHAVIOUR OF CORUH RIVER BASIN (NORTHERN TURKEY) USING GIS TECHNIQUE

    Yildirim, Umit

    Morphometric analysis is a very practical approach for evaluating hydrological processes for watersheds. The combination of morphometric, geological, and geomorphological characteristics of the river basin helps to gain further insights in forecasting hydrological phenomena (such as flooding, soil erosion, and groundwater potential). In this study, the morphometric analysis of the Coruh River Basin was conducted using GIS to establish effective water management. Firstly, the basic morphometric parameters (basin area, basin length, basin perimeter, stream order, stream number, and total stream length) were calculated for both CRB and its subbasins. Then, characteristic morphometric parameters (drainage density, drainage texture, form factor, length of the overland flow, topographic wetness index, and stream power index) were determined. Results showed that the infiltration capacity of the subsurface material was low, and the surface runoff was slow in the subbasins located close to the CRB's outlet. Therefore, these subbasins are more sensitive to flooding, erosion, and landslides compared to others. Soil erosion and thus sediment loss is higher in 1st, 2nd, 3rd, and 5th subbasins, and the groundwater potential is higher in headwater areas of the basin. This study revealed that the GIS-based morphometric analysis is beneficial to implement water management tool at the watershed scale.

    AtıfWoS1
    Web of Scienceİncele
  • MakaleYalnız künye2021
    BIOCHEMICAL AND BIOACTIVE CONTENT IN FRUITS OF WALNUT (JUGLANS REGIA L.) GENOTYPES FROM TURKEY

    Erdogan, Ummugulsum; Argin, Sanem; Turan, Metin; Cakmakci, Ramazan; Olgun, Murat

    Walnuts (Juglans regia L.) are a good source of dietary minerals and contain significant amounts of potassium, phosphorus, magnesium and iron. In Turkey, walnut orchards are found in the coruh Valley and are generally composed of local varieties. Since chemical and physical properties of walnuts are very important in determining their quality, in this study, nut and kernel characteristics, fatty acid composition and phenolic composition were determined for 26 walnut genotypes collected from the valley. Total fat content was found to be between 53.75% and 71.43%, while the crude protein amount ranged from 10.21% to 20.71%. Total carbohydrates were calculated between 14.31-27.52% and ash content was found to be between 1.64% and 3.32%. The oleic acid content and linoleic acid content ranged from 18.34 to 25.58% and 37.09% to 87.51%, respectively. The linolenic acid content was determined between 5.52% and 11.03%. Our study showed that, differences in phenolic component, crude protein and fatty acid content of walnuts were caused by different growing conditions. Genotypes have a rich and stable structure in terms of fruit quality parameters, minerals, organic acids, phenolic composition, antioxidant and fatty acids amounts and amino acids. In other words, these characteristics did not show much variation in genotypes grown in the Valley. However, there was a great variation in hormone levels among genotypes. In terms of the parameters examined, GN2, GNI, ((NIS, GN24, GN25 and GN26 genotypes were determined as rich and stable genotypes.

    AtıfWoS8
    Web of Scienceİncele
  • MakaleYalnız künye2019Scopus SJRQ4
    DETERMINATION OF ANTIOXIDANT, ANTIMICROBIAL ACTIVITIES, PHENOLIC COMPOUNDS OF WILD ROSA L. SPECIES BAYBURT, TURKEY

    Gidik, Betul; Akar, Zeynep; Can, Zehra; Sefali, Abdurrahman; Erturk, Omer

    Five different rosehip (Rosa L.) species including, Rosa canina, Rosa iberica Stev, Rosa villosa, Rosa beggeriana Schrenk and same kind of but different location Rosa spinosissima grown in Bayburt from Turkey are studied. The wild species of Rosa L. were collected from Rocks and Steps, Field and garden borders. Morphological parameters were measured as fruit and seed weights and fruit and seed size. Ten fruits were chosen randomly for the measurement and take the average of them to determine the weights and size. In our study was determined antioxidant activity, antimicrobial activity and phenolic compounds. As antioxidant activity; total phenolic total flavonoid, condense tannin contents, CUPRAC, FRAP, ABTS. Nineteen standard of phenolic compositions of fruits and seeds were determined. Antioxidant, antimicrobial activities of the extracts were found high levels in rose hip species fruit than seed. Catechin, rutin protocatequic acid and CAPE were principal for all rose hip species fruit but, was not deteceted CAPE Kop Mountain, Yukari Kop Village Rosa spinosissima species. This suggests that the difference in location affects the phenolic content. Pearson Correlation analyze has done with the morphological parameters, GPS data, antioxidant activity and phenolic compounds by using the SPSS software programme version 25.0.

    AtıfWoS3
    Web of Scienceİncele
  • MakaleYalnız künye2018Scopus SJRQ3
    THE COOPERATION BETWEEN METHYL JASMONATE AND SALICYLIC ACID TO PROTECT SOYBEAN (GLYCINE MAX L.) FROM SALINITY

    Seckin-Dinler, Burcu; Tasci, Eda; Sarisoy, Ufkun; Gul, Volkan

    Methyl jasmonate (MeJA), a methyl ester of jasmonic acid, is a naturally produced phytohormone that regulates plant growth and development by maintaining the morphologic, physiological, and biochemical development of plants. The purpose of this study was to determine the effect of methyl jasmonate and endogenous salicylic acid on the stimulation and scavenging of reactive oxygen species (ROS) under salt stress in soybean roots and leaves. Soybean leaves were sprayed with 0.5 mu M methyl jasmonate for 4 days, followed by exposure to 200 mM NaCl. Foliar application of MeJA did not change the leaf area; however, it increased the relative water content (RWC), chlorophyll content, relative electrolyte leakage (REL), and root and shoot fresh weight, and it lessened the stress-induced oxidative damage by decreasing the levels of hydrogen peroxide (H2O2), malondialdehyde (MDA). Curiously, catalase (CAT) enzyme and isoenzyme activity, and also endogenous salicylic acid (SA) were decreased by MeJA treatment. As a result, this study firstly determined that MeJA treatment improved the soybean performance under salinity by acting role as an antioxidant and cooperating with SA.

    AtıfWoS4
    Web of Scienceİncele
  • MakaleYalnız künye2018Scopus SJRQ3
    THE EFFECT OF PROGRESIVE RELAXATION TRAINING ON FREE RADICALS, ANTIOXIDANT SYSTEM AND OXYDATIVE DNA DAMAGE

    Aggon, Eser; Ozturk, Nurinnisa; Alp, Hamit Hakan; Siktar, Elif; Agirbas, Ozturk; Bakan, Ebubekir

    This study aimed in sedentary subjected to progressive relaxation training (PRT) for determination of the effect of this exercise on MDA, OHdG, and NO levels and SOD and GPx activities. Experimental design was used in this research. Seven healthy, sedentary volunteers were included in the study. All subjects were male and within 15 to 18 years of age. Jacabson's Progressive Muscle Relaxation Training was applied to the volunteers for 6 six weeks. Before and after the chronic and acute exercise, blood samples were taken from the subjects, and K-Related Samples Friedman test was used for the analysis of repeated measurements and for the comparison of pre- and post-exercise data and chronic and acute mode data. In addition, 2-Related Samples Wilcoxon test was used in the evaluation of the groups as pairs. Our findings showed increases in MDA PRT, and no statistically significant increase in NO levels after PRT in sedentary volunteers. When the effect of relaxation exercise on the antioxidant system is considered, both SOD and GPx activities increased. The effect of PRT on 8-OHdG has been found to exhibit significant increase after PRT. It can easily be said that PRT may be helpful in patients with chronic disease, especially for obtaining a healing and a high quality sleep. In addition, in order for the athletes to feel well and to use their muscles actively, PRT may be helpful. We can conclude that, with respect to human health and physiology, no controversy may be seen in progressive muscle relaxation training.

  • MakaleYalnız künye2018Scopus SJRQ3
    CHEMICAL CHARACTERIZATION OF KARS HONEY

    Ozenirler, Cigdem; Ecem-Bayram, Nesrin; Gencay-Celemli, Omur; Celikbicak, Omur; Sorkun, Kadriye

    This study was undertaken to determine some chemical parameters (moisture, fructose/glucose ratio, hydroxymethylfurfural value, volatile compounds) of honey samples obtained from Kars. 100 honey samples from eight districts of Kars were evaluated. The chemical characterizations were as follows: average moisture (15,5 +/- 1,11%), HMF (0,77 ppm 0.9 ppm), F/G ratio (1,02 +/- 0,16). As a result of the gas chromatography mass spectrometry (GC MS) analyses, some volatile compounds in honey samples such as alcohols (1,15 +/- 1,84%), aldehydes (4,66 +/- 6,33%), aliphatic acids and their esters (1,86 +/- 4,5%), hydrocarbons (2,32 +/- 3,1%), flavonoids (4,34 +/- 1,63%), carboxylic acids and their esters (0,24 +/- 0,96%), ketones (6,05 +/- 6,35%), sugars (15,79 +/- 10,74%),vitamins (0,59 +/- 2,66%) were determined and quantitative variations of chemical components in different samples were reported.

    AtıfWoS3
    Web of Scienceİncele
  • MakaleYalnız künye2018Scopus SJRQ3
    EFFECTS OF MENTHA PULEGIUM EXTRACT AND VITAMIN E SUPPLEMENTATION ON LAYING HENS PERFORMANCE, EGG QUALITY, ANTIOXIDANT ENZYME ACTIVITY IN SERUM

    Bolukbasi, Saziye Canan; Urusan, Hilal; Erhan, Muhammet Kuddusi

    The aim of this study was to investigate the effects of the supplementation of Mentha pulegium extract (MPE) and vitamin E on performance, egg quality and antioxidant enzyme activities of laying hens. The experiment study was conducted with 120 40 weeks old laying hens (Lohman LSL). Hens were given five dietary treatments of which each was repeated six times on 4 birds. Hens in the experiment groups were given 50 mg / kg MPE, 100 mg / kg MPE, 50 mg / kg vitamin E, 100 mg/kg vitamin E and the hens in control group were fed on basal diet. MPE and vitamin E supplementation did not make any change on feed consumption and egg weight but improved feed conversion ratio. Addition of 100 mg / kg MPE and vitamin E significantly increased the egg production. No significant difference were found between control and experimental groups in terms of shell thickness, yellowness, shape index and ratio of albumen, yolk and egg shell. However, MPE and vitamin E supplementation improved the shell breaking strength and Hough Unit. Dietary supplementation of MPE and vitamin E did not change AST, ALT, TG, cholesterol, HDL, LDL and glucose level in serum. Serum MDA value was decreased by MPE and vitamin E addition. Serum MDA levels were reduced by addition of MPE and vitamin E, but there was no difference in SOD activity among the groups. The addition of 50 and 100 mg / kg vitamin E significantly reduced the GSH-Px activity. As a result, 100 mg / kg MPE supplementation can be recommended as an alternative to antibiotic feed additives.

    AtıfWoS4
    Web of Scienceİncele
  • MakaleYalnız künye2018Scopus SJRQ3
    DIFFERENT LAND USE INFLUENCES ON AMINO ACID, ORGANIC ACID, HORMONE AND MINERAL NUTRIENT CONTENTS OF DRY BEANS

    Erdogan, Ummugulsum; Kitir, Nurgul; Günes, Adem; Tuan, Metin; Tasci, Sinem; Yildirim, Ertan; Karaman, Mehmet Rustu; Mokhtari, Negar Ebrahim Pour; Ozlu, Ekrem; Firildak, Gulay

    Dry bean (Phaseolus vulgaris L.) is a widely grown and important food legume which is a major source of mineral nutrition. The present study digs in determining differences in nutrients, organic-amino acid and hormone concentrations of Ispir bean genotypes under different land use conditions. The study sites (32 locations) were identified according to the stratified sampling method in the Ispir district, Erzurum, Turkey, under consideration of bean-cultivated lands and the number of villages. The seed weights were higher for genotype no. 4 (137.5 g) than for genotype no. 14 (131.5 g) and following by all other genotypes. Moreover, values for crude protein content were significantly higher for genotype no. 14 (263.1 g/kg) in comparison to genotype no. 4 (256.9 g/kg) and other genotypes. Therefore, it is concluded that land use impacts seed weight, nutrient, crude protein, amino acid, organic acid and hormone contents of Ispir dry bean. Land use can result economic improvements in crop yields and yield components. Dry bean seed weights were impacted by other crop yield components such as amino acid, organic acid and hormone contents of dry bean.

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    FRESENIUS ENVIRONMENTAL BULLETIN