Browsing by Author "Tuncturk, Murat"

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Analysis of Nuclear Dna Content and Karyotype of Phaseolus Vulgaris L
(Mdpi, 2023) Kulaz, Haluk; Najafi, Solmaz; Tuncturk, Ruveyde; Tuncturk, Murat; Albalawi, Marzough Aziz; Alalawy, Adel I.; Sayyed, R. Z.
The common bean (Phaseolus vulgaris L.), whose annual production is 26 million tons worldwide, is one of the main sources of protein and is known as one of the most important food sources. In this study, the karyotype variations and the genome size of four common bean genotypes in Turkey were investigated to determine whether the geographic variables in these regions affected the genome size and the karyotype parameters. In addition, it is known that as that the cytological and chromosomal parameters change under the influence of the climatic conditions of each region, appropriate and stable cytological methods for each plant facilitate and enable the determination of the chromosomal structure and the identification of specific chromosomes in the genotypes of the relevant region. Correct and valuable information such as this enables breeders and researchers to determine the correct shape and actual size of chromosomes. The genome size of the genotypes was measured with a flow cytometer, and chromosome analyses were performed with the squash method. For each genotype, the karyotype parameters, such as the number of somatic chromosomes, the Mean Total Chromosome Length (MTCL), the Mean Centromere Index (MCI), and the Mean Arm Ratio (MAR), were measured. The results showed that the highest and the lowest amounts of DNA per nucleus (3.28 pg and 1.49 pg) were observed in the Bitlis and Elazig genotypes. In addition, all genotype chromosome numbers were counted to be 2n = 2x = 22. The Mean Total Chromosome Length varied from 15.65 mu m in Elazig to 34.24 mu m in the Bitlis genotype. The Mean Chromosome Length ranged between 1.42 mu m and 3.11 mu m in the Elazig and Bitlis genotypes. The Hakkari and Van genotypes consist of eleven metacentric chromosomes, while the Bitlis and Elazig genotypes consist of ten metacentric chromosomes and one sub-metacentric chromosome. However, the Mean Centromere Index and Arm Ratio differed considerably among the genotypes. The highest (46.88) and the lowest (43.18) values of the Mean Centromere Index were observed in the Hakkari and Elazig genotypes, respectively. On the other hand, the lowest (1.15) and the highest (1.36) values of the Mean Arm Ratio were obtained in the Bitlis and Elazig genotypes, respectively. Eventually, intraspecies variations in genome size and chromosomal parameters were observed, and it was determined that the changes in nuclear DNA content and different chromosomal parameters among the four Phaseolus genotypes from four different regions of Turkey indicate the effect of climate change in the regions on these parameters. Such information in these areas can be used as useful information for the improvement of this plant and breeding programs.
Antioxidant Capacity and Bioactive Contents of Mulberry Species From Eastern Anatolia Region of Turkey
(Assoc Pharmaceutical Teachers india, 2018) Gundogdu, Muttalip; Tuncturk, Murat; Berk, Selma; Sekeroglu, Nazim; Gezici, Sevgi
In this study, we aimed to determine biochemical contents of white (Morus alba L.) and black (Morus nigra L.) mulberry genotypes grown in the Hakkari region. At the end of the study, organic acids, phenolic compounds, sugars, vitamin C and antioxidant capacities of mulberry species were determined. Black mulberry genotypes were found to contain higher antioxidant capacity than white mulberry genotypes. The highest antioxidant capacity was detected in the 30YK03 (25.55 mu moITE/g) black mulberry genotype. While phenolic compounds varied in mulberry species, especially gallic acid (57.78 mg/100g), chlorogenic acid (53.13 mg/100g), and rutin (37.77 mg/100g) had the highest values. Malic acid was found to be higher than other organic acids and was found to be 13.51 g/100g in the highest 30HK03 genotype. Although sugar contents varied in mulberry species, glucose was determined higher than fructose and sucrose in mulberries.
Assessment of Genetic Diversity Among 131 Safflower (Carthamus Tinctorius L.) Accessions Using Peroxidase Gene Polymorphism (Pogp) Markers
(Springer, 2022) Yildiz, Mehtap; Altaf, Muhammad Tanveer; Baloch, Faheem Shehzad; Kocak, Metin; Sadik, Gokhan; Kuzgun, Cansu; Tuncturk, Murat
Background Safflower (Carthamus tinctorius L.) is an old oilseed crop with a 1.4 GB genome size and its flowers are used for food coloring, dyes and pharmaceutical industries. It was domesticated from its putative wild ancestor Carthamus palestinus about forty-five hundred years ago in the fertile crescent region.The current study was aimed to determine the genetic diversity, population structure and to check the applicability of iPBS-retrotransposons markers. Methods and results Eleven POGP primers yielded 70 bands of which 61 were highly polymorphic with 87.14% polymorphism. A great level of genetic variation was examined with higher values of overall gene diversity (0.27), genetic distance (0.53), number of effective alleles (1.46), Shannon's information index (0.41) and polymorphism information contents (0.71). Analysis of molecular variance revealed high genetic variation with 79% within the population. The STRUCTURE, PCoA and Neighbor-joining analysis separated the safflower germplasm into 2 major populations and 1 un-classified population. The accessions which were from Asian countries i.e., China, Afghanistan, Turkey, Iran and Pakistan were genetically similar and clustered together in both populations A and B. The maximum genetic distance was measured 0.88 between Pakistan 26 x Pakistan 24. Conclusion Findings of this research such as maximum diversity indices, higher PIC values showed the effectiveness and utility of POGP markers for the evaluation of genetic relationships among safflower accessions. The results of this study also showed that POGP markers are less effective compared to ISSRs, iPBS-retrotransposons and DArTSeq markers. AMOVA showed high genetic variation (79%) within a population and maximum genetic distance was found between the accessions Pakistan 26- Pakistan 24 and may be suggested as candidate parents for future breeding activities of safflower. The accessions from the fertile crescent region were clustered together and proved the origin of safflower domestication. This study highlights genetic variation among safflower germplasm and could be helpfull for parental selection and planning for future breeding programs.
Biofertilizer Application Enhances Drought Stress Tolerance and Alters the Antioxidant Enzymes in Medicinal Pumpkin (Cucurbita Pepo Convar. Pepo Var. Styriaca)
(Mdpi, 2021) Najafi, Solmaz; Nazari Nasi, Hossein; Tuncturk, Ruveyde; Tuncturk, Murat; Sayyed, Riyaz Z.; Amirnia, Reza
The effects of mycorrhiza, Thiobacillus and Nitroxin (Azotobacter and Azospirillum sp.) biofertilizers under drought stress conditions with four levels of field capacity (FC) (control(100%), 85%, 70%, and 50%) on the antioxidant enzyme activities of medicinal pumpkin (Cucurbita pepo convar. pepo var. Styriaca) were evaluated during the years 2018-2019. Irrigation levels exhibited significant effects on all studied variables, except for the catalase (CAT) enzyme. A significant correlation was observed between the effects of irrigation levels and biofertilizers on antioxidant enzymes, soluble protein content, and grain yield. The highest activity of catalase and ascorbate peroxidase (APX) enzymes was achieved using mycorrhiza in 50% FC. Increasing drought intensity and mycorrhiza stimulated glutathione reductase (GR) and guaiacol peroxidase (GPX) activities by 32% and 66%, while Nitroxin increased them by 16% and 43%, respectively. Under severe drought stress conditions, only mycorrhiza exhibited a positive effect on GR and GPX enzymes. Under moderate and severe drought stress conditions, Nitroxin increased grain yield by 13% and 12.6%, respectively. The irrigation regimes and bio-fertilizers had a significant effect on beta-sitosterol percentage. The highest amount was observed at the highest level of drought stress. Among the various bio-fertilizers treatments, the application of Thiobacillus yielded the highest percentage of beta-sitosterol. The results of the present study demonstrate that the application of biofertilizers is beneficial in coping with drought stress.
Boron Toxicity and Pgpr Phytoremediation Effects on Physiological and Biochemical Parameters of Medical Sage (Salvia Officinalis L.)
(Polish Society Magnesium Research, 2022) Yolci, Muhammed Said; Tuncturk, Ruveyde; Eryigit, Tamer; Tuncturk, Murat
In this study, the effects of boron doses (0=control, 5, 10, 20 mM) and some beneficial rhizobacteria (Azospirillum lipoferum, Bacillus megaterium, Frateuria aurentia) on the physiological and biochemical parameters of medicinal sage (Salvia officinalis L.) were investigated. The study was carried out in factorial order in a completely randomized experimental design with four replications in a controlled climate chamber. In the study, chlorophyll a, chlorophyll b, total chlorophyll, total carotenoid, total anthocyanin, nitrogen balance index, MDA, relative water in leaf tissues, ion leakage, membrane durability, total phenolic substance, total flavonoid substance, and total antioxidant activity parameters were investigated. Depending on the applied boron doses, increases were observed in total phenolic, total flavonoid, total carotenoid, ion leakage, and MDA values. In contrast, decreases in the nitrogen balance index and membrane durability were observed. It has been determined that PGPR applications effectively reduce the damage of boron by increasing the total anthocyanin, total flavonoid, chlorophyll b, total chlorophyll amounts, and
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 Some Apiaceae Plants Commonly Used in Herby Cheese in Eastern Anatolia
(Tubitak Scientific & Technological Research Council Turkey, 2015) Tuncturk, Murat; Ozgokce, Fevzi
Traditional uses of wild edible plants in daily diets are common in Eastern Anatolia. It is well known that more than 40 different plant species have been used as fresh vegetable, dried herbs, and pickled plants in some sole or mixed milk and meat products. The major use of wild edible plants is Van herby cheese in this region. To date, the mineral compositions of wild edible plants used in Van herby cheese production have been studied individually. In the present study, the plants were grouped by their plant families and their mineral compositions were determined. Therefore, variations and relations of minerals among the plants belonging to the same family were evaluated. The most used and well-known Apiaceae members such as Anethum graveolens L., Anthriscus sp., Chaerophyllum macropodum, F. haussknechtii H. Wolff ex Rech. f., Ferula rigidula DC., Heracleum persicum, Hippomarathrum microcarpum, Pimpinella aurea DC, and Prangos ferulacea L. were analyzed for their macro-and microelement concentrations (Ca, Co, Cu, Cr, Fe, K, Mn, Mg, N, Na, P, S, and Zn). Additionally, some food quality aspects (e.g., dry matter, total ash contents, crude protein contents, pH, and crude fiber contents) were also evaluated in the plant samples. In conclusion, plant samples analyzed had impressive diversity for mineral compositions and other properties. It can be concluded that these plentiful variations among plants belonging to the same family could have resulted from individual genetic structure, different growing conditions, and plants parts.
Chemical Contents of Some Species of Teucrium Genus Distributed in Van Flora
(Kahramanmaras Sutcu Imam Univ, 2019) Tuncturk, Ruveyde; Tuncturk, Murat; Eryigit, Tamer
Lamiaceae family, including the Teucrium genus, is Turkey's third richest family. Albeit Teucrium's gene center is the Mediterranean Territory, they grow in almost every habitat and altitude of the world. In this study, objective of this study was to determine the nutrient and mineral contents of two species (Teucrium polium L. and Teucrium chamaedrys L. subsp. chamaedrys) belonging to Teucrium genus distributed naturally in Van province in Eastern Anatolia Region. In the plant samples, total ash, crude protein, pH, crude fiber and some mineral including N, Na, Mg, K, Ca, P, S, Fe, Zn, Mn, Cu, Cr, Cd, Co, Pb contents were observed. When the data obtained were examined, it was determined that the chemical composition differs based on species. Teucrium polium and T. chamaedrys species sustained a content ratio of 1.76-0.77%, 11.0-4.81%, 6.33-5.03%, 6.07-6.07%, and 36.83-37.15% for total nitrogen, protein, pH, total ash, and fiber, respectively. In addition, it was determined that Teucrium species sustained different potassium (7.51-4.34 g kg(-1)), phosphorus (4.41-1.37 g kg(-1)), magnesium (3.57-1.81 g kg(-1)), sulfur (2.22-1.27 g kg(-1)), manganese (34.71-50.78 mg kg(-1)), zinc (28.41-26.22 mg kg(-1)) and iron (255.35-221.22 mg kg(-1)) ratios, respectively. In terms of heavy metal content, the highest values were obtained from T. chamaedrys subsp. chamaedrys.
Chromosome Analysis of Some Phaseolus Vulgaris L. Genotypes in Turkey
(Bangladesh Botanical Soc, 2022) Kulaz, Haluk; Najafi, Solmaz; Tuncturk, Murat; Tuncturk, Ruveyde; Yilmaz, Hilal
Karyotypes parameters in four selected Turkish bean genotypes (BT, HK, VN, and EL) were studied. Genotypes (4 levels) and chromosomes (11 levels) were compared in factorial experiment based on completely randomized design with five replications. Genotypes showed significant differences in long arm, short arm and total chromosome length and divided into three separate groups. Genotypes BL and HK were placed together in a separate group, probably showing the weaker kinship with the other genotypes. Also, the significant differences in all recorded parameters were observed among chromosomes of each genotype. All genotypes were diploid 2n = 22 with no satellite and differed significantly in karyotypic parameters. The most and the least chromatin length (34.24 mu m and 15.65 mu m) were observed in BT and EL genotypes, respectively. Also, all genotypes showed high chromosomal symmetry and categorized in Stebbins's Class 1A. The karyotype of genotype BT was found to be more symmetrical than others.
Determination of Morphological and Quality Characteristics of Naturally Growing Thymus Kotschyanus Boiss. & Hohen. Var. Kotschyanus Populations Around of Van/Türkiye
(Mdpi, 2025) Nohutcu, Lutfi; Tuncturk, Murat; Tuncturk, Rueveyde; Selem, Ezelhan; Eroglu, Huseyin
In this study, morphological and quality characteristics (nutritional value, EO ratio and content, TPC, TFC, and TAA) of 12 different naturally growing populations (T1 to T12) of Thymus kotschyanus var. kotschyanus were investigated. In the case of macro and micro nutrients, all the populations have a rich ingredient, and for heavy metal content, all population results are within limits. The percentage of essential oils in the population varied between 0.43% to 4.66% (v/w). Thymol was the most abundant compound in the whole population and the percentage of thymol ranged from 4.07% to 81.15%. In the study, eight populations had more than 50% thymol content and the maximum percentage was recorded from the T1 population (81.15%). The total phenolic compound ranged from 152.81 to 195.23 mg GAE/g of dry extract and total flavonoid content ranged from 145.24 to 382.74 mg QE/100 g. Total antioxidant activity varies between 78.43 and 228.55 mu mol TE/g and the highest value was obtained from population T7. PCA analysis was carried out to determine the morphological and quality parameters of the populations. Four populations were superior to others for morphological analysis and two populations were superior to others for quality analysis. According to the result of the study, the T10 population has higher yield and quality compared to other populations.
Determination of Some Growth Parameters and Chemical Contents of Glycine Max L. Under Lead Stress Condition
(Hard, 2022) Eryigit, Tamer; Kulaz, Haluk; Tuncturk, Ruveyde; Tuncturk, Murat
The aim of the study was to determine the effects of lead on some growth parameters and chemical contents of soybean (Glycine max L.) seedlings. The study was conducted according to the factorial trial in a completely randomized experimental design with six replications. To investigate lead effects on nutrient uptake and metabolism, two soybean varieties were grown under aeroponic conditions and stressed with lead sulphate (PbSO4) at five concentrations in a fully controlled aeroponic climatic cabin. According to the results, Fe, Cu, and Pb contents of the roots and leaves were increased in direct proportions with increasing lead concentrations, and the highest increase was seen in the groups exposed to the highest level of lead. By contrast, total amounts and concentrations of Na in the root, and accumulation of P, Ca, Na, Cd, and Ni in the leaves were reduced. Lead, which was accumulated in a dose-dependent manner in both soybean varieties, reduce the growth of the plant and cause lower uptake of some mineral by plant organs.
Determination of the Content of Antioxidants and the Biochemical Composition of Legume Microgreens
(Polish Society Magnesium Research, 2022) Altuner, Fevzi; Tuncturk, Ruveyde; Oral, Erol; Tuncturk, Murat
This research was conducted in 2021, in a controlled climate room of the Van Yuzuncu Yil University, Faculty of Agriculture, Department of Field Crops. It was set up according to the Completely Randomized Experimental Design. Total antioxidant activity (TAA), total phenolic (TPC), total flavonoid (TFC), total ascorbic acid (TAC), total chlorophyll (TCHL), chlorophyll a (CHLa), chlorophyll b (CHLb) and total carotenoid (CAR) concentrations and their correlations in sainfoin (Lutfibey), alfalfa (Bilensoy), red clover (Dadas) chickpea (Arda), lentils (Sazak), cowpea (Amazon), black chickpea (local), mung bean (local) and maize (Arifiye) were determined. The highest amounts of TAA (4789.373 mg TE g(-1) DM) and TPC (791.770 mg GAE 100 g(-1) DM) were determined in red clover, and the amount of TFC (672.177 mg QE 100 g(-1) DM) was the highest in maize. The TAA content of the other plants was 6- to 8-fold lower than in red clover and maize. The TAC content of the plants, except alfalfa, red clover and maize, was similar. Cowpea had the lowest values in terms of TAA, TPC and TPC. The highest TCHL (36.632 mu g g(-1) TA FW), CHLa (25.247 mu g g(-1) TA FW), CHLb (11.385 mu g g(-1) TA FW) and CAR (7.015 mu g g(-1) TA FW) were found in lentils. Pigment values of lentils are 75-79% higher than those in the closest plant. All pigment values of the mung bean were at the lowest level and 50% lower than in the closest plant. A negative and insignificant correlation was found among TAA, TPC and TFC with TAC, a positive and significant correlation was determined among TFC with TAA and TPC, and a positive and very important correlation was detected between TPC and TAA. A positive and very significant correlation was found between CAR with all pigment properties, between CHLb with TCHL and CHLa, and between CHLa and TCHL.
Determination of the Nutritional and Chemical Composition of Some Edible Wild Plants Used in Herby Cheese
(Polish Society Magnesium Research, 2020) Eryigit, Tamer; Tuncturk, Murat; Tuncturk, Ruveyde
Same as in many parts of the world, many edible weeds belonging to different families that have not been cultured in Turkey are traditionally used in the making of many foods. In this study, minerals and nutrients of six edible wild plant species belonging to the Liliaceae family, which are currently used in the production of herby cheese in the Eastern Anatolia region of Turkey, were determined. The determination of these macro-and micro-minerals was performed on ICP-AES and UV-Visible spectrophotometers. As a result of the study, major differences were discovered between these plant species in terms of the mineral content (Na, Mg, K, s, Ca, P, Fr, Mn, Cu, Zn, Cr, and Co) and nutrient properties (total ash, crude fibre, pH, N, and crude protein). Except for the Allium schoenoprasum species, all plant samples were found to be rich in many important minerals, such as Fe, Cu, Ca, K, Mn, and Zn, which are known to be vital for human health. The concentrations of these minerals and a few heavy metals in plant samples were found in the following ranges: 17.25 -25.47 mg kg(-1) for copper, 18.45 -34.14 mg kg(-1) for zinc, 33.42 -98.42 mg kg-1 for manganese, 0.12 -0.54 mg kg(-1) for chromium, 0.31 -1.61 mg kg(-1) cobalt. Many significant correlations were found among the parameters analysed. The study presents essential results on the availability of some vital minerals that could be useful or harmful to consumers, in order to provide dietary information for designing value-added foods.
Effect of Different Boron Concentrations and Rhizobacteria Applications on Physiological and Biochemical Properties of Purple Basil (Ocimumbasilicum) Plant
(Polish Society Magnesium Research, 2022) Yolci, Muhammed Said; Tuncturk, Ruveyde; Tuncturk, Murat; Eryigit, Tamer
It is known that applications of boron, which is known to play an essential role in nutrient transport by plant membranes, can affect the accumulation and use of other plant nutrients as a regulator or an inhibitor. Thus, in this study, the effects of boron doses (0-control, 5, 10, 20 mM) and some beneficial rhizobacteria (Azospirillum lipoferum, Bacillus megaterium, and Frateuria aurentia) on seedling growth, physiological, and biochemical parameters of purple basil (Ocimum basilicum) were investigated. The study was carried out in as a factorial experi-ment in a completely randomized design with four replications in a controlled climate chamber. In the study, plant root, seedling length, root and seedling fresh-dry weight, total chlorophyll, carotenoid, anthocyanin, flavonol, nitrogen balance index, MDA, relative water in leaf tissues, ion leakage, and membrane stability parameters were investigated. It was observed that all growth parameters were negatively affected by increasing boron doses. In contrast, while ion leakage, total flavonol, carotenoid, anthocyanin, and MDA contents increased, membrane stabil- ity, total chlorophyll content, and nitrogen balance index contents decreased. Rhizobacteria applications were found to be effective in reducing toxic boron damage in root length and seed-ling fresh weight, increasing total chlorophyll, and anthocyanin contents, and decreasing boron toxicity by reducing lipid peroxidation compared to control.
The Effect of Different Sulphur Doses on The Yield and Quality of Rapeseed (Brassica Napus L.)
(Parlar Scientific Publications (p S P), 2017) Tuncturk, Ruveyde; Tuncturk, Murat
This study was carried out to investigate the effects of different sulphur doses (0, 25 and 50 kg ha 1) on the yield and agronomic characteristics of three spring rapeseed cultivars (Gladiator, Licosmos and Jura) in eastern Anatolia, during 2010 and 2011. Field trials were designed according to randomized complete block design (RCBD) with three replications at the experimental fields of Faculty of Agriculture, Van Yuzuncu Yil University, Van, Turkey. In the study, plant height (cm), number of branches (branch plant(-1)), number of pod (pod plant-1), number of seed in the pod (seed pod(-1)), thousand-seed weight (g), seed yield (kg ha(-1)), oil content (%), oil yield (kg ha(-1)) and protein content (%) were determined. The effect of sulphur doses on the studied characters was statistically significant. However, statistically significant differences were not observed among different cultivars except plant height, number of branches, number of seed in the pod, seed yield, oil yield and protein content. The highest seed yield (1418.0 kg ha(-1)) and oil content (41.1 %) were obtained using 25 kg ha(-1) sulphur application for cv. Gladiator in second year field experiment.
Effect of Drought Stress and Seaweed Applications on Some Physiological Parameters in Echinacea (Echinacea Purpurea L.)
(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2020) Bat, Mizgin; Tuncturk, Ruveyde; Tuncturk, Murat
This study was carried out to determine the effects of seaweed (Ascophyllum nodosum) extract applications (control, 2, 4 and 6 cc/l) and drought stress at the different osmotic pressure (control,-0.5 MPa, -1.0 MPa and -1.5 MPa) generated by PEG 6000 on some physiological parameters in Echinacea. The leaf area, leaf chlorophyll content, ion leakage in leaf tissues, malondialdehit level (MDA), relative water content, and membrane endurance index in leaf tissues of echinacea plants were investigated.As a result of the research; leaf area, membrane endurance index and relative water content in leaf tissues decreased under drought stress. It was determined that there was increase in the level of MDA and ion leakage in leaf tissues by the applications. Drought stress did not have any significant effect on the leaf chlorophyll content. It has been determined that seaweed applications had the negative effects on the plant of drought stress. There were positive and increasing effects on the examined parameters such as leaf chlorophyll content and membrane endurance index except for MDA level and ion leakage in leaf tissues of seaweed applications. Seaweed applications did not affect investigated parameters includfing relative water content of leaf tissues and leaf area.
Effect of Essential Oils and Hydrosols From Some Selected Lamiaceae Species on Redroot Pigweed (Amaranthus Retrollexus L.)
(Ars Docendi, 2021) Ozkan, Reyyan Yergin; Tuncturk, Murat
Allelopathy refers to chemical effect of a plant direct or indirect on germination, growth or development of neighboring plants. Allelopathy can be considered as a component of biological control that reduces the development of other plants. This study was carried out to determine the effect of Greek sage (Salvia fruticosa Miller), basil (Ocimum basilicum L.), Dragonhead (Dracocephalum moldavica L.), spearmint (Menta spicata L.), sage (Salvia officinalis L.), lemon balm (Melissa officinalis L.), oregano (Origanum onites L.) and thyme (Thymus kotschyanus Boiss.) on the germination of redroot pigweed (Amaranthus retroflexus L.) which causes significant yield loss in agricultural production. Essential oil (9, 18, 36 mu L/petri) and hydrosols (50, 75, 100%) of aromatic plants were applied to determine their inhibition effects on seed germination of A. retroflexus. The experimental design for in vitro was a randomized design with five replications. It has been shown that germination rate was decreasing by the increased concentration of essential oil and hydrosols of the tested plant species. Also, total germination inhibition of A. retroflexus depended on the essential oil doses; the rate ranged from-2.9 to 85%. Amongst the essential oils, the highest effect was observed in spearmint with 7% germination rate. It could be considered as an important solution, which would contribute in Integrated Weed Management of A. retroflexus by using different concentrations of essential oil and hydrosols from aromatic 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 Salinity Stress on Plant Green Weight and Nutrient Value of Soybean (Glycine Max (L.) Merrill) Cultivars
(Asian Journal of Chemistry, 2009) Tuncturk, Murat; Yasar, Fikret; Tuncturk, Rueveyde
Soil salinity is a major limitation to crop production in many areas of the world. A pot experiment was carried out with soybean cultivars to investigate the effects of salinity stress on plants growth and nutrient composition at 150 mM NaCl concentration under greenhouse conditions. Twelve soybean cultivars were exposed to salinity treatments (0 and 150 mM NaCl and control). All cultivars were harvested 45 d after plantation. Green parts of 45-day old plant weights were recorded. Soybean cultivar plants were divided into root, shoot and leaf parts for nutrient (K+, Na+, Ca2+ and Cl-) content measurements. Salinity stress negatively affected soybean cultivars and the effects varied according to the salt tolerance of the cultivars. Generally, salinity reduced the green weight. Salt stress decreased K+, Ca2+, contents and K+/Na+ rations in plants, but significantly increased Na+ and Cl- content in the roots. shoots and leaves of all cultivars. In the salt treatment, K+, Ca2+, concentration and K+/Na+ rations were high in leaf compared with those in roots and shoots. Howover, the highest increase in Na+ and Cl- contents were observed in the roots and shoot of plants. Under salinity, Mancon, Stresland and. Althow varieties retained the highest K+ and Ca2+ content in leaves, related to K+ the varieties were not effected under 150 Mm NaCl treatment.
Effect of Seed Rates on Yield and Yield Components of Anise (Pimpinella Anisum)
(indian Counc Agricultural Res, 2006) Tuncturk, Murat; Yildirim, Bunyamin