Browsing by Author "Erdinc, Ceknas"

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Analysis of Genetic Diverity Among Different Melon Accessions Using Peroxidase Gene Markers
(Parlar Scientific Publications (p S P), 2020) Kocak, Metin; Turan, Sibel; Erdinc, Ceknas; Yildiz, Mehtap
Plant peroxidases encoded by a broad multi gene family have important roles in many physiological events such as salt tolerance, auxin metabolism, seeding, protection against pathogens and oxidative stress. In this study the genetic diversity and population structure of 45 different melon (Cucumis melo L.) genotypes from a variety of regions in Turkey and different countries were investigated using peroxidase gene polymorphism markers. 12 polymorphic primers were used to obtain 97 scorable bands for the 45 melon genotypes. Of these bands, only 62.9% were determined to be polymorphic. The number of bands per primer ranged from 6 to 11 and the average number of bands was 8.08. The lowest and the highest polymorphism information contents (PIC) were 0.49 (Pox 12 FaRa) and 0.99 (Pox 13), respectively. The mean PIC value was 0.75. The lowest genetic similarity was found between CU-365 (conomon) and CU-247 (0.143), on the other hand, the highest genetic similarity was observed between CU-360 (cantalopensis) and CU-389 (cantalopensis) (0.875). Using the STRUCTURE computer program, all melon accessions were determined to separate into two subpopulations. These results support the usability of the PDX gene marker system in genetic diversity studies. Also, the data obtained are considered to be a guide for other studies to be performed on melons in the future.
Bioactive Components and Antioxidant Capacities of Different Miniature Tomato Cultivars Grown by Altered Fertilizer Applications
(Springer, 2018) Erdinc, Ceknas; Ekincialp, Aytekin; Gundogdu, Muttalip; Eser, Fuat; Sensoy, Suat
This study investigated the organic acid and phenolic compound levels, total phenolic (TP) and antioxidant capacity (TEAC) of three miniature tomato cultivars grown on a farmer's field with three different fertilizer applications. Analysis of phenolic compound (protocatechuic, vanillic, gallic, chlorogenic, caffeic, syringic, p-coumaric and ferulic acid, rutin, quercetin, catechin and phloridzine) organic acid (citric, tartaric, malic, succinic and fumaric acid), TP and TEAC levels in fruit samples showed statistically significant (p < 0.05) differences between tomato cultivars and fertilizer applications. Rutin and chlorogenic acid were the predominant phenolic compounds found in all three cultivars. The highest rutin value (50.48 mg kg(-1) FW) was found in the Black Zebra fertilized with DAP plus organic and biochemical fertilizers and the lowest (20.52 mg kg(-1) FW) in the Black Zebra fertilized with DAP only. The highest chlorogenic acid value (63.31 mg kg(-1) FW) was found in the sweet pea currant fertilized with DAP only and the lowest (21.06 mg kg(-1) FW) in the Black Zebra fertilized with DAP plus chemical fertilizer. Citric acid content was the dominant organic acid in all three cultivars, with the highest citric acid value (6439.50 mg kg(-1) FW) found in the Sweet Pea Currant cherry tomato fertilized with DAP plus organic and biochemical fertilizers and the lowest (2435.20 mg kg(-1) FW) in the Window Box Yellow fertilized with DAP plus chemical fertilizer. Total phenolic and antioxidant levels in the window box yellow were significantly lower as compared to the Black Zebra and sweet pea currant varieties for all three fertilizer applications.
Changes in Ion (K, Ca and Na) Regulation, Antioxidant Enzyme Activity and Photosynthetic Pigment Content in Melon Genotypes Subjected To Salt Stress - a Mixture Modeling Analysis
(Univ Life Sciences Lublin, 2018) Erdinc, Ceknas
The present study aimed to identify the response of melon accessions and cultivars to salt stress in terms of ion exchange, enzyme activity, lipid peroxidation and photosynthetic pigment contents by mixture modelling. In mixture modeling, it is expected that the data set demonstrates a heterogeneous structure. This heterogeneity is characterized as unobservable heterogeneity. The data set's heterogeneity produces severe deviations in the parameter assessments and the standard deviations. Heterogeneity is overcome when the data set separates itself into homogeneous sub-populations. Mixture modeling was performed using the Mclust mixture cluster program of the statistical software package R 5.2.3. Sub-populations were constructed by evaluating genotypes according to studied traits and correlation analysis was performed using the SPSS software package. The seedlings of 13 melon genotypes were harvested two weeks after salt application (0 mM or 50 mM NaCl) when symptoms of salt stress were observed. Nutrient contents and ratios (K, Ca, Na, K : Na and Ca : Na); superoxide dismutase (SOD), catalase (CAT) and ascorbate peroxidase (APX) activities malondialdehyde (MDA) chlorophyll a, chlorophyll b, total chlorophyll and carotenoid contents were measured. Mixture modeling and correlation analysis were used in evaluating the experimental data sets. Differences in responses to salt application were observed among genotypes. While all genotypes exhibited negative responses in terms of K : Na ratio, which is an important parameter of salt tolerance, the smallest decreases in K : Na ratios were observed in the YYU-11 (-57.09%) and YYU-4 (-58.78%) genotypes, indicating them to be the most tolerant to salt stress. In general, enzyme activity decreased in response to salt application, although the responses varied among genotypes, especially with regard to CAT and APX activity. The YYU-29 genotype was notable as the genotype with the highest K : Na ratio (1.79) as well as the smallest change in MDA content under salt stress.
A Comparative Analysis of Co-Inoculation of Microbial Biostimulants at Different Irrigation Levels Under Field Conditions on the Cucumber Growth
(Springer, 2023) Bicer, Seyhmus; Erdinc, Ceknas; Comlekcioglu, Nuray
Drought is one of the most important abiotic stress factors that limit plant growth and reduce yield and quality worldwide. Arbuscular mycorrhizal fungi (AMF) and plant growth-promoting rhizobacteria (PGPR), known as microbial biostimulant (MB) promote plant growth in a variety of adverse environmental conditions. The objective of this study was to determine the effects of PGPR and AMF inoculation on cucumber yield, water use efficiency, nutrient content and fruit quality in across two growing seasons and four different irrigation levels (I-1: 33%, I-2: 66%, I-3: 100% and I-4: 133%) under field conditions. While mycorrhizal colonization (MC) and relative mycorrhizal dependence (RMD) increased proportionally with water deficit, single AMF inoculation produced higher MC and RMD rates than co-inoculation. Our results revealed that AMF inoculation at I-4 produced the highest yield (991.46 g plant(-1)), the lowest yield was found in the control group with 294.41 g plant(-1) in I-2 irrigation. AMF and AMF+PGPR inoculation boosted I-1 crop yield more than uninoculated plants on average 66.52% and 33.93%, respectively. At the same time, it was determined that while uninoculated plants experienced more than 40% yield losses in I-1 compared to full irrigation (I-3), MB applications mitigated these losses. The AMF and AMF+PGPR inoculations were more effective in terms of water use efficiency (WUE), with I-1 showing the highest WUE values. Under water deficiency conditions, MB applications increased fruit length, fruit width and fruit firmness compared to uninoculated plants.
Comparison of Some Local Melon Genotypes Selected From Lake Van Basin With Some Commercial Melon Cultivars for Some Yield and Quality Related Traits Observed in Field and High Tunnel Conditions
(Academic Journals, 2008) Erdinc, Ceknas; Turkmen, Onder; Sensoy, Suat
This study aimed to compare some local melon (Cucumis melo L.) genotypes selected from the Lake Van Basin (65 ER 02, 65 ER 04, and 13 TAT 05) with some commercial melon cultivars (Ananas, Makdimon F(1), and Rambo F(1)) for some yield and quality related traits observed in field and high tunnel conditions for two years. At the end of the study, it was determined that Makdimon F(1) produced the highest early and total yields (14.76 and 30.51 t ha(-1), respectively). While the locally selected melon genotype 65 ER 04 followed Makdimon F(1) for the early yield (11.43 t ha(-1)), the locally selected genotype 65 ER 02 followed Makdimon F1 for the total yield (22.49 t ha(-1)). The cultivars Rambo F(1) and Makdimon F(1) had higher soluble solid contents than the others.
Effects of Arbuscular Mycorrhizal Fungi (Amf) and Biochar on the Growth of Pepper (Capsicum Annum L.) Under Salt Stress
(Springer, 2023) Gunes, Hasret; Demir, Semra; Erdinc, Ceknas; Furan, Mehmet Alp
Soil salinity is a significant abiotic factor that negatively affects the growth and yield of many plants. Separately, biochar and arbuscular mycorrhizal fungus contributed positively to salt-stressed plant growth. To alleviate salinity stress and promote pepper growth, biochar and mycorrhiza are rarely researched together. In this work, the effects of salt stress (AMF) and biochar (BC) applications on the pepper (Capsicum annum L.) plant's morphological and physiological growth characteristics and some soil properties were investigated. Biochar (2% and 4%) and AMF inoculum (Funneliformis mosseae (Fm) and ERS commercial AMF inoculum) were applied to a commercial pepper cultivar (Sera Demre 8) at varying salt concentrations (0 mM, 50 mM, 100 mM, and 150 mM) in order to determine the optimal treatments (AMF inoculum and biochar concentration). In general, when the salt concentration increased, the morphological growth values of the pepper plant and the AMF density decreased, but the EC value of the soil increased. In general, the plants were able to endure a salt concentration of 100 mM, but their sensitivity increased when exposed to 150 mM NaCl. Biochar and AMF independently increased plant growth parameters, leaf relative water content (LRWC), and phosphorus (P), while decreasing membrane injury index (MII) values. The interaction biochar and AMF positively improved microbial activity under conditions of salt stress, while mycorrhizal dependency did not arise in AMF treatments. Based on the results, it was found that the 2% biochar ratio and F. mosseae were beneficial to the morphological development and growth of AMF. Therefore, it was determined that the synergistic effect of AMF and biochar might be used as a viable and sustainable agricultural alternative to prevent salt stress damage in pepper growing.
Effects of Arbuscular Mycorrhizal Fungi (Amf) and Biochar on the Growth of Pepper (Capsicum Annuum L.) Under Salt Stress (Jun, 10.1007/S10343-023-00897-2, 2023)
(Springer, 2023) Gunes, Hasret; Demir, Semra; Erdinc, Ceknas; Furan, Mehmet Alp
The Effects of Arbuscular Mycorrhizal Fungi on the Seedling Growth of Four Hybrid Cucumber (Cucumis Sativus L.) Cultivars
(Tubitak Scientific & Technological Research Council Turkey, 2012) Tufenkci, Sefik; Demir, Semra; Sensoy, Suat; Unsal, Husameddin; Demirer, Emre; Erdinc, Ceknas; Ekincialp, Aytekin
The effectiveness of different arbuscular mycorrhizal fungi (AMF) on different hybrid cucumber cultivars has not been well documented, even under normal seedling conditions. The present study therefore aimed to evaluate colonization, nutrient uptake, dependency, and other seedling traits of 4 cucumber hybrids (Ceren F-1, Beta F-1, Silyon F-1, and Maraton F-1) inoculated by 3 different AMF [Glomus intraradices (Gi), Glomus etunicatum (Ge) and Gigaspora margarita (Gm)]. Traits were evaluated in a growth chamber experiment consisting of a 4 x 4 factorial design (4 cucumber hybrids, 3 AMF plus 1 control) with 3 random replications. AMF-inoculated cucumber seedlings had shorter hypocotyledons and wider and longer cotyledons than non-inoculated seedlings. Gm-inoculated seedlings had the narrowest stem diameter and lowest leaf number. AMF-inoculated seedlings had shorter shoots and longer roots than noninoculated ones. There was significant mycorrhizal effect on the iron (Fe) content of shoots and the mycorrhizal colonization rate in roots. Relative mycorrhizal dependency (RMD) varied widely among the hybrid cucumber cultivars tested. It is thought that the determination of high-RMD cultivars could lead to improvements in cucumber seedling production in the future.
Effects of Arbuscular Mycorrhizal Fungus, Humic Acid, and Whey on Wilt Disease Caused by Verticillium Dahliae Kleb. in Three Solanaceous Crops
(Tubitak Scientific & Technological Research Council Turkey, 2015) Demir, Semra; Sensoy, Suat; Ocak, Elvan; Tufenkci, Sefik; Durak, Emre Demirer; Erdinc, Ceknas; Unsal, Husamettin
This study examined the effects of arbuscular mycorrhizal fungi (AMF), humic acid (HA), and whey (W) application on wilt disease caused by Verticillium dahliae Kleb. in tomato, pepper, and eggplant. Single, dual, and triple applications of AMF (2.5 g inocula of either Glomus mosseae or G. intraradices), HA (500 ppm), and W (50 mL kg(-1)) were found to improve the morphological growth and nutritional status of all three host species. Moreover, dual and triple applications reduced the severity of wilt disease caused by V. dahliae by between 40% and 70.5%. Triple application of AMF, HA, and W decreased the number of V. dahliae microsclerotia by 50%. Furthermore, W and HA application promoted AMF growth, with HA application resulting in significantly higher levels of AMF colonization and spore density when compared to untreated controls.
Effects of Different Arbuscular Mycorrhizal Fungi (Amf) Species on Some Bean (Phaseolus Vulgaris L.) Cultivars Grown in Salty Conditions
(Academic Journals, 2010) Ciftci, Vahdettin; Turkmen, Onder; Erdinc, Ceknas; Sensoy, Suat
This study was carried out to determine the effects of three different Arbuscular Mycorrhizal Fungi (AMF) species (Glomus mosseae, Glomus intraradices and Glomus fasciculatum) on the growth and nutrient contents of four bean cultivars (Onceler, Seker, Terzibaba and Sehirali) grown under salt stress. The constant amount of NaCl (50 ppm) was added the autoclaved growth medium containing 1:1:1: ratios of soil, sand, and manure. The five gram (25 spores g(-1)) of inoculum was placed in the seedling growth medium before the seeds were sown. At the end of the study, some nutrients such as N, P, K, Ca, Mg, Fe, Cu, Mn, and Zn and plant growth parameters such as shoot height, stem diameter, root length, leaf number, leaf area, and dry and fresh weights of shoots and roots were investigated. Moreover, the plant colonization rates of AMF species were determined. The AMF species had positive effects on the plant growth and nutrient intake. Among the bean cultivars, Onceler and Terzibaba, and among the AMF species, G. mosseae had the best results for plant growth.
The First Report About Genetic Diversity Analysis Among Endemic Wild Rhubarb (Rheum Ribes L.) Populations Through Ipbs Markers
(Tubitak Scientific & Technological Research Council Turkey, 2021) Erdinc, Ceknas; Ekincialp, Aytekin; Turan, Sibel; Kocak, Metin; Baloc, Faheem Shahzad; Sensoy, Suat
Approximately 30% of plant species of Turkey, which is among the richest countries in terms of biodiversity, has been endemic. Wild rhubarb (Rheum ribes L.) is a wild vegetable grows especially in the eastern region of Turkey and is an endemic species. In this study, genetic relationships among 80 wild rhubarb genotypes collected from some regions of Lake Van Basin, which are in the distribution area, were tried to be determined by iPBS marker system. At the same time, a commercial variety of R. rhabarbarum, which is a cultivated species, was used as control. PCR studies were conducted with 23 iPBS primers to determine genetic relationships, and a total of 340 scorable bands were obtained. 100% polymorphism rate was obtained from all primers studied. While the average PIC value was found to be 0.90, the highest value was found to be 0.97 from the primer # 2220. It was determined that the genotypes were divided into 3 basic groups in the dendogram created with UPGMA based on Jaccard similarity coefficient.
Genetic Characterization of Rheum Ribes (Wild Rhubarb) Genotypes in Lake Van Basin of Turkey Through Issr and Ssr Markers
(Friends Science Publishers, 2019) Ekincialp, Aytekin; Erdinc, Ceknas; Turan, Sibel; Cakmakci, Ozlem; Nadeem, Muhammad Azhar; Baloch, Faheem Shehzad; Sensoy, Suat
Rheum ribes L. (wild rhubarb) is one of the less known plants to the world and the only species from the Rheum genus present in Turkey. In this study, one R. rhabarbarum (as check genotype) and 80 R. ribes genotypes were collected from different geographical locations of Turkey for the investigation of diversity and genetic structure using ISSR (Inter Simple Sequence Repeat) and SSR (Simple Sequence Repeats) markers. SSR markers reflected higher (100%) polymorphism as compared to the ISSR marker. However, ISSR markers produced higher average Polymorphism Information Content (PIC) value (0.805) than the SSR markers (0.724). A Similar range of (PIC) values with ISSR markers was found greater (0.935-0.395) as compared to the range of SSR makers (0.88-0.47). Using Jaccard similarity index, genetic distance was measured for both markers and average genetic distance was found to be higher with ISSR markers as compared to the SSR markers. Neighbor-joining analysis clustered genotypes into 3 groups for both marker systems. During this study some distinct genotypes like R. rhabarbarum, YYUERC19, YYUERCO9 and YYUNIER65 were investigated that can be used as candidate parents for the development of R. ribes L. varieties. Structure analysis grouped the genotypes according to altitude by clustering genotypes having at more than 2000 m in one group and genotypes less than 2000 m altitude in another group. Genetic variations observed in this study can be applied to investigate various traits of interest for the R. ribes L. breeding. (C) 2019 Friends Science Publishers
Genetic Diversity of Flax Genotypes (Linum Usitatissimum L.) by Using Agro-Morphological Properties and Molecular Markers
(Springer, 2023) Kocak, Mehmet Zeki; Kaysim, Mustafa Gueven; Aydin, Adnan; Erdinc, Ceknas; Kulak, Muhittin
Flax is one of the significant crops owing to oilseed and fibre attributes, exhibiting a wide distribution in many parts of the world. In this regard, we collected 29 genotypes of the flax from the different sources including agricultural institutes and research centers in Turkiye. We, for the first time, screened the genetic diversity and population structure of 29 flax genotypes using both 12 inter-primer binding sites (iPBS) and 33 inter simple sequence repeats (ISSR). In addition, some morphological traits of the genotypes were also determined. According to the unweighted pair group method with arithmetic mean (UPGMA)-based dendrogram, genotypes of the flax were classified into the two major groups (A and B). Group B was composed of two sub-groups (B1 and B2) according to the six phenotypic attributes considered for analysis. Concerning molecular relationships of the genotypes, individual and combined UPGMA-based dendograms were constructed with respect to the ISSR and iPBS markers. According to the Jaccard similarity coefficients for ISSR data, flax genotypes were divided into two main groups (A and B) and the "Van-1" genotype was in group A alone. Also, group B was divided into two separate subgroups. "Afyon-1" and "Izmir-Kemeralti" genotypes were located in group B1, while all the remaining genotypes were located in group B2. In addition, the average genetic similarity was 0.755 regarding the findings of iPBS-retrotsposon markers, flax genotypes were classified into two main groups (A and B), and these main groups formed two subgroups among themselves. While "Konya-1" is located alone in A1 subgroup, "Igdir", "Izmir-Kemeralti", "Mardin", "Bitlis" and "Afyon-1" genotypes were located in A2 subgroup. While "Van-1" genotype was located in the B2 subgroup alone, other genotypes were found in the B2 subgroup. The average genetic similarity was determined as 0.578 according to Jaccard binary similarity coefficient. According to the combined data of two markers, two separate groups (A and B) were revealed, similar to the dendrogram constructed with ISSR data. "Van-1" genotype was located in group A alone. Group B was divided into two subgroups (B1 and B2). The average genetic similarity was 0.722 according to the Jaccard similarity coefficient of matrix. Concerning the values of agro-morphological traits, the values of the parameters ranged as follows: technical stem length (19.32-45.39 cm), technical stem fresh weight (0.13-0.82 g), root length (4.07-7.84 cm), and root fresh weight (0.03-0.13 g). These variations were statistically significant between the genotypes. As being characterized with fibre use; specifically, the highest technical stem length was observed for "Ankara-cankaya", while the lowest height was recorded for "Royal". Overall, regarding discrimination of genotypes; agro-morphological attributes were consistent with the genetic diversity and population structure obtained with iPBS-ISSR markers. Furthermore, Mantel analysis revealed that the correlation coefficients between ISSR and iPBS were high and significant. However, the correlation between phenotypic characteristics and those two marker systems was low and this correlation was significant for ISSR marker.
How Do Amf and Biochar Affect Pepper Growth and Nutrient Content Under Biotic and Abiotic Stress
(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2025) Gunes, Hasret; Demir, Semra; Erdinc, Ceknas
Salt stress is a significant abiotic stress that adversely affects pepper plant growth which can accelerate the development of plant pathogens and increase plant susceptibility to diseases. Verticillium dahliae, which causes pepper wilt disease, is an important biotic stress factor. Funneliformismosseae and biochar organic wastes help to take nutrients from the soil by establishing symbiotic connections with plant roots and, are effective in treating plant diseases, plant growth, and stress tolerance. This study aims to determine the effects of F. mosseae (Fm) and 2% biochar (Bc) against V. dahliae (Vd) on some plant physiological properties, plant nutrient uptake, soil pH, and EC value in pepper plants grown under salt stress (50mM, 100mM, 150mM). As a result of the study, the use of F. mosseae alone or in interaction with 2% biochar significantly increased some physiological parameters and some minerals (P, K, Mg, and Mn) contents of the plant. Moreover, pepper plants showed remarkable resistance to salt and stress factors caused by V. dahliae. In addition, the interaction between F. mosseae and biochar significantly lowered the soil EC value under conditions of severe salt stress. On the other hand, biochar was more effective than F.mosseae in terms of soil pH and Ca/Na ratio. The results showed that biochar and F. mosseae were beneficial in reducing biotic ( V. dahliae) and abiotic stress (salt stress) damage while enhancing plant growth and nutrient absorption. Therefore, this study yields excellent and novel results, particularly in the field of employing beneficial microorganisms for sustainable agriculture.
The Impact of Low Temperatures on Plant Growth in Some Common Bean Genotypes
(Parlar Scientific Publications (p S P), 2018) Kabay, Turgay; Ekincialp, Aytekin; Erdinc, Ceknas; Sensoy, Suat
In plant production, when the plant is exposed to any biotic and abiotic stress during the process from planting to harvest, a deficiency is observed in plant growth. Especially in plants with high temperature requirements, low temperatures lead to damages in plant shoots and roots. Thus, the present study aimed to determine low temperature tolerant bean genotypes in order to provide convenience for the producers and researchers. Among 21 bean genotypes exposed to low temperature stress, plant fresh and dry weight, stem diameter, plant height, leaf number and area, leaf relative water content, membrane damage index and ion (K and Ca) content were determined. Bean seeds were sown in 2-liter pots containing 2: 1 peat + perlite mixture, and 2 plants per pot. The plants that were exposed to low temperature stress were sown in a high tunnel on March 15, when the external temperatures were low, and irrigated with water containing Hoagland nutrient solution. When the bean seedlings were 20 days old, the half of pots were removed from the high tunnel and exposed to low temperatures outside for 20 days. On the 40th day, the experiment was terminated, and it was determined that the genotypes C19, C18, and C30 beside cv. Yakutiye were resistant to low temperature stress, while the genotypes A90, A97, A67, and C13 beside cv. Zulbiye were susceptible to low temperature stress.
The Impact of Potassium Sulphate Application on Phaseolus Vulgaris Plants Grown Under Salt Stress
(Parlar Scientific Publications (p S P), 2018) Erdinc, Ceknas; Sonmez, Ferit; Ekincialp, Aytekin; Sensoy, Suat
The present study aimed to investigate the effects of potassium sulphate on certain bean genotypes after K2SO4 application based on the analysis of plant growth parameters and macro-micro nutrient element content. The study material included 1 bean genotype (Gevas) and 3 bean cultivars (Akman-98, Sugar and Onceler) obtained in Lake Van Basin of Turkey. The plants were grown under controlled conditions at 23 +/- 2 degrees C temperature and 8000 lux light intensity 12 hours light and 12 hours dark photoperiods, with 4 replicates and 8 plants per replicate and randomized lots design. The plants were grown under stress-free conditions until they reached the 3-leaf stage, after which they were exposed to a constant 20 mM salt stress. 500, 1000 and 2000 mg kg(-1) K2SO4 was mixed to the growth medium before seeding except the control plants. Study findings demonstrated the statistical significance of potassium sulphate application especially that of the 1000 mg kg(-1) and 2000 mg/kg-1 potassium sulphate doses, based on several parameters and its effects on the reduction of salt stress were observed. The variations between the genotypes were observed and it was determined that the genotype Gevas and cv. Onceler exhibited higher tolerance. Despite the other parameters, the nutrient element parameters such as K/Na and Ca/Na content and plant development parameters such as shoot dry matter and root dry matter content were effective in determination of the positive effects of potassium sulphate.
Mitigation Effects of Gamma Ir 1 Radiation (60co) and Trichoderma Species Against Fusarium- and Pythium-Induced Diseases in Cucumber
(Springer, 2025) Gunes, Hasret; Hatipoglu, Murside; Yildiz, Muhsin; Bitik, Selma Kipcak; Erdinc, Ceknas; Demir, Semra
Cucumber (Cucumis sativus L.) is a vegetable widely grown worldwide for its agricultural, economic and nutritional value. With the increase in cucumber cultivation areas in recent years, soil-borne plant disease such as Pythium spp. and Fusarium wilt (FW) have caused significant economic losses for producers. Filamentous Trichoderma fungi and gamma radiation are well known for their ability to stimulate many plant-pathogen fungal interactions, plant defense mechanisms against these fungi (antagonistic, competitive, etc.), and plant growth. This study aims to examine the effects of Trichoderma spp. (Trichoderma harzianum and Trichoderma virens), which are among the sustainable practices against F. oxysporum f. sp. cucumerinum and P. aphanidermatum pathogens, and the effects of gamma rays (0, 50, 100, 150, 200, and 250 Gy), which are used as a reliable method for changing physiological and biochemical processes in plants and investigating their interactions with pathogens. The results revealed that the interaction between gamma rays and Trichoderma species increased the fresh and dry weights and shoot and root length values of the cucumber plants and decreased the disease severity. When Trichoderma harzianum (%51-%78 impact) and Trichoderma virens (%40-%67 impact) were compared, their effects on plant growth and disease severity were determined to vary according to parameters and gamma doses. These results indicate that gamma mutations may improve the biocontrol properties of T. harzianum and T. virens. According to the results of this study, gamma rays can be used in sustainable agricultural practices together with Trichoderma spp. as a bioformulation against pathogens that cause wilt and root rot in cucumber [F. oxysporum f. sp. cucumerinum (72%) and P. aphanidermatum (66%)] against.
Mitigation Effects of Gamma Irradiation (60co) and Trichoderma Species Against Fusarium and Pythium Diseases in Cucumber (Vol 54, Pg 45, 2025)
(Springer, 2025) Gunes, Hasret; Hatipoglu, Murside; Yildiz, Muhsin; Bitik, Selma Kipcak; Erdinc, Ceknas; Demir, Semra
Responses of Some Different Pepper (Capsicum Annuum L.) Genotypes To Inoculation With Two Different Arbuscular Mycorrhizal Fungi
(Elsevier Science Bv, 2007) Sensoy, Suat; Demir, Semra; Turkmen, Onder; Erdinc, Ceknas; Savur, Orcun Burak
Eight different pepper genotypes inoculated by two different arbuscular mycorrhizal fungi (AMF) [Glomus intraradices (Gi) and Gigaspora margarita (Gm)] in a growth chamber experiment under normal seedling growing conditions were evaluated for seedling traits, colonization and relative mycorrhizal dependency (RMD). In general, inoculated plants had greater dry weights compared to non-inoculated plants. Five cultivars responded positively to inoculation with AM fungi and three responded negatively. A great variation in mycorrhizal colonization dependency was observed among the pepper genotypes, with the N52 genotype showing the highest RMD and the Karaisali genotype the lowest. RMD and dry weights of pepper genotypes were inversely correlated. (C) 2007 Elsevier B.V. All rights reserved.
The Role of Arbuscular Mycorrhizal Fungi (AMF) in the Control of Rhizoctonia Root Rot in Local Bean Genotypes of the Van Lake Basin
(Kahramanmaras Sutcu Imam Univ Rektorlugu, 2025) Demirer Durak, Emre; Ekincialp, Aytekin; Gunes, Hasret; Erdinc, Ceknas
Beans (Phaseolus vulgaris L.), one of the main vegetables common in the Van Lake Basin, are frequently grown in the region with local genotypes. Rhizoctonia solani root rot, an important soil-borne disease that negatively affects beans, especially in this region, causes economic losses in our country and worldwide. Therefore, a viable and eco-friendly alternative to chemical control in the treatment of such significant soil-borne plant diseases is the application of Arbuscular Mycorrhizal Fungi (AMF). This study aimed to investigate the effects of commercial AMF (ERS) and Funneliformis mosseae (Fm) against R.solani (Rs) root rot disease in V29 and TR 50763 (T71) bean genotypes obtained from Van-Geva & scedil;. For this purpose, some plant growth parameters, total phenol, total antioxidant capacity, root colonization, and disease severity parameters were investigated. Fm and ERS significantly increased plant morphological parameters and reduced disease severity in both bean