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Öğe DETECTION OF ACTIVE SUBSTANCES IN CYNARA SYRIACA B. AND CYNARA SCOLYMUS L. TYPE ARTICHOKES GROWING NATURALLY IN SIIRT REGION(Parlar Scientific Publications (P S P), 2020) Aktar, Yunus; Karipcin, M. Zeki; Sensoy, SuatThis project was carried out to determine the active ingredient contents in artichoke plant, an ancient and interesting vegetable which gave its name to festivals. Artichoke; which is a vegetable that is very important for human beings in terms of health, has also taken place in mythology. The study was carried out in Siirt University, Faculty of Agriculture; Department of Horticulture. The experiment was conducted in Turkey; in the city of Siirt and the province of Kezer; one of the few places in which Cynara syriaca species grow. Different branching types (1 branch, 7 branch; 14 branch, 21 branch and 28 branch) of Cynara syriaca species in the region were used in the experiment. In addition, other varieties of Cynara scolynnts species (Saktz and Bayrampaa) which have been cultivated and taken into our food culture were also used. Cultivated species were grown in controlled environments and samples were obtained from these controlled areas, The wild type (Cynara syriaca) samples were obtained from different types of plants grown in the natural environment. Determination of active ingredient contents in leaf samples belonging to different artichoke varieties and types were performed. With the determination of active substance: active substance/branch number, active substance/head weight and active substance/head number measurements were also performed. Morphological properties of both species were also investigated. Due to the fact that wild artichokes are prickly and they grow in natural environment, it is expected that their active ingredient contents will be higher. However. at the end of the study, contrary to expectations, it was found that the cultivated artichoke varieties (Bayrampaa and Sakiz) had a richer content in terms of active substance than Cynara syriaca species with different branching characteristics. Cynara syriaca genotypes were found to have higher values in terms of active substance/branch number, active substance/head weight and active substance/head number. Whether or not a plant can he used as a drug is decided according to the active ingredient content of the same plant.Öğe Effect of Algae on Melon (Cucumis melo subsp. agrestis var. conomon) Growth and Development under Drought-Stress Conditions(Tech Science Press, 2023) Karipcin, M. Zeki; Inal, BehcetDue to climate change, it is necessary to develop plant varieties that are resilient to climate conditions and resis-tant to abiotic and biotic stresses. The use of microalgae, which are microorganisms that contain carbohydrates, proteins, lipids, and vitamins, against drought tolerance is a new approach. The aim of the current study was to determine the drought-related mechanisms in the conomon melon genotype and develop drought-tolerant melon cultivars. Morphological, physiological, pomological, and molecular analyses were carried out on the algae-treated genotypes. It has been determined that commercial algae application provides the best results in leaf temperature, leaf relative water contents (LRWC), plant height, fruit length, fruit diameter, and yield, while Cag Cag (a special river in the region) stream algae application gives better results in main stem diameter. It was determined that the number of nodes in the control (without algae) plots was higher than in the other two treatments. Yield and LRWC and plant height values of genotype 7 were the best values among other genotypes. The leaf temperature measurement was lower on genotype 9 than on the other genotypes. While the highest fruit length value was mea-sured in genotype 1, genotype 8 was superior in the main stem diameter, fruit diameter, and the number of nodes among the remaining plant materials. In terms of yield, it was determined that the interaction between genotype 2 and the commercial algae resulted in the best outcomes. In addition, the results of the genetic evaluation revealed that the materials used were not genetically distant from each other and more detailed genetic evalua-tions are needed. The molecular kinship analysis revealed that the genotypes used in the study were divided into three distinct groups, with individuals within each group exhibiting a high degree of relatedness to one another. As a result of the study, it was found that the application of microalgae had significant effects on improving the drought tolerance of Cucumis melo subsp. agrestis var. conomon genotypes.Öğe Ground Urfa isot peppers with high content of bioactive compounds and antioxidant activity(Agrimedia Gmbh, 2015) Kara, Meryem; Dinc, Saliha; Kahraman, Selma; Karipcin, M. Zeki; Alp, Irem; Cicekci, HacerUrfa isot pepper is one of the most important spices in the diet of Turkish people; particularly of those in the Sanliurfa region. This is the first study reporting the bioactive compounds (beta-carotene, lycopene, ascorbic acid, phenolic compounds, capsaicin) and antioxidant activity of ground Urfa isot peppers produced both at homestads and factories. Factory-made red-blackish isot pepper showed the highest DPPH radical-scavenging activity, followed by homemade red-blackish isot pepper and homemade red isot pepper. FRAP values of all Urfa isot peppers were statistically in the same group. Homemade red isot pepper had the highest total phenolic content, lycopene and beta-carotene. The capsaicin content of ground Urfa isot peppers varied from 0.15-1.2 mg/g of pepper. The homemade red-blackish ground pepper had the highest ascorbic acid level. Phenolics of peppers were remarkable and higher than those reported in the literature. With their high number of phenolic constituents, as well as other bioactive compounds, ground Urfa isot peppers can be considered an important nutritional and functional food resource.Öğe High temperature-tolerant tomato lines: bioactive compounds(Springer International Publishing Ag, 2016) Karipcin, M. Zeki; Dinc, Saliha; Kara, Meryem; Kahraman, Selma; Alp, Irem; Cicekci, HacerHigh global temperatures will be a great challenge for agricultural production in the near future. Therefore, adaptation of agricultural crops to the high temperatures or development of new heat-tolerant crops with known bioactive compounds is an important strategy for nutritional health and crop improvement programs. In this context, the bioactive compounds of newly developed high temperature-tolerant tomato lines were investigated in terms of lycopene, beta-carotene, ascorbic acid and phenolic compounds to assist breeders for the selection of high temperature tolerant tomato varieties with high nutritional quality. Nineteen tomato lines, including control varieties from the Turkey F1 Hybrid vegetable variety and quality line development project and the GAP Agricultural Research Institute, were selected for the investigation. Line 11 was superior in lycopene and beta-carotene content, while line 18 was superior in ascorbic acid content as compared to control varieties Cansun F1 and Alsancak RN F1. Urfa 2012 and line 28 were found to have the highest numbers of phenolic compounds. Chlorogenic acid, naringenin, trans-ferulic acid and rutin were key phenolic compounds detected in each of the tomato lines. These newly released tomato lines can be used as value-added germplasm or parent sources to develop new heat-tolerant cultivars in breeding programs or as commercial cultivars for their superior functional qualities.Öğe High temperature-tolerant tomato lines: bioactive compounds.(Journal für Verbraucherschutz und Lebensmittelsicherheit, 2016) Karipcin, M. Zeki; Dinç, Sabiha; Kara, Meryem; Kahraman, S.; Alp, I.; Çiçekçi, H.The functional quality of newly developed high temperature tolerant tomato lines was investigated in terms of lycopene, ß-carotene, ascorbic acid and phenolic compounds to assist breeders for the selection of high temperature tolerant tomato varieties with high nutritional quality. 19 tomato lines including control varieties from the “Turkey F1 Hybrid vegetable variety and quality line development” project were selected for investigation. Line 11 was superior in lycopene and ß-carotene content while line 18 in ascorbic acid as compared to control varieties Cansun F1 and Alsancak RN F1. Urfa 2012 and line 28 were found to have the highest numbers of phenolic compounds. Chlorogenic acid, rutin and trans-ferulic acid were the main phenolic compounds detected in all tomato lines at high concentrations. These newly released tomato lines can be used as value-added germplasm or parents to develop new heat tolerant cultivars in a breeding programmes or as a commercial cultivar for their superior functional qualities.Öğe Hydrogels improved parsley (Petroselinium crispum(Mill.) Nyman) growth and development under water deficit stress(Peerj Inc, 2023) Karipcin, M. ZekiWater scarcity is one of the most pressing problems facing countries in the semi-arid and arid regions of the world. Data predicts that by 2030, global water consumption will increase by 50%, leading to severe water shortages. Today, agricultural production consumes more than 70% of fresh water in many parts of the world, increasing the pressure on water scarcity. For these reasons, agricultural production models and approaches should be developed to reduce water consumption. One developed approach is the use of hydrogel to reduce water consumption and have a positive effect on plant growth. This study investigated the use of hydrogels as chemical components that can be used in water shortage conditions and against the expected water scarcity. Parsley was used as the model organism. The method used was as follows: two different water treatments (50% and 100%) and four different hydrogel concentrations (0%, 50%, 75%, and 100%) were applied, and root width and length, leaf width and length, main stem length, and the number of tillers were measured. According to the results, while no improvement was observed in the plants with 100% hydrogel concentration, the best results were obtained from 50% hydrogel application. The results obtained from 75% hydrogel application were found to be higher than those of 100% hydrogel but lower than 0% hydrogel application. With 50% hydrogel (water-restricted), all plant growth parameters were higher compared to the plants with 100% (full irrigation) water application. It was determined that the average value of the I1 (50%) irrigation was the highest (3.6), and the average value of the I2 (100%) irrigation (2.4) was the lowest. It was determined that the highest average value (6.2) in all measured traits was the average value of the H1 (50%) application, and the lowest average value (0.0) was in the H3 hydrogel applications (100%). In conclusion, this study suggested that hydrogel application is beneficial on a large scale, can optimize water resource management for higher yields in agriculture, and has a positive effect on agricultural yield under water deficit stress.Öğe Preliminary research on drought resistance of wild and domestic Turkish watermelon genotypes(Proceedings of the IXth EUCARPIA Meeting on Genetics and Breeding of Cucurbitaceae, 2008) Sarı, Nebahat; Kırnak, Halil; Karipcin, M. ZekiThis project was conducted at GAPEYAM, Sanlıurfa, Turkey, in a semi arid region of Turkey. The aim was to determine the effects of water stress on 85 watermelon accessions collected from different regions of Turkey. Two irrigation levels were imposed to determine potential drought resistance of accessions. All plots in the beginning were irrigated with enough irrigation water for healthy seed germination. The plants received enough irrigation until the period of true leaves. After the true leaves, irrigation treatments were initiated. While S1 treatment received full irrigation based on depleted soil moisture in the root zone, S2 treatment received 50 % of S1. A new formula was developed to evaluate the drought resistance. For each accession, the ratio between S1 and S2 treatments was calculated for each character: a ratio close to 1 indicated drought tolerance for this character. Both quality and physiologic/vegetative characteristics were measured such as leaf area, length of main stem, turgor pressure, last resistance test, diameter and weight of harvested fruits, total soluble solid contents, and number of seed and weight of seed. Drought tolerance of an accession was estimated by a linear combination of the ratio for these 9 traits. Accessions were classified as tolerant if they had a rating above 70 out of 100 and intolerant if the rating was below 59. The experimental results showed that thirtyfive accessions were evaluated as drought tolerant. The highest score obtained from the formulae was 99 with accession number 24. Other tolerant accessions like 218, 25, 27 and 197 were rated as 88, 86, 86 and 85 respectively. Twenty-seven accessions were classified as intolerant.Öğe Reaction of Some Melon (Cucumis melo) Genotypes to Drought Stress(Proceedings, XIth Eucarpia Meeting on Genetics and Breeding of Cucurbitaceae, 2016) Karipcin, M. Zeki; Sarı, N.; Solmaz, İ.…Öğe Responses of Furrow Irrigated Paprika Pepper Cultivars on Yield and Crop Water Stress Index (CWSI) Under Semi-Arid Climate Condition(Springer, 2023) Kirnak, Halil; Karipcin, M. ZekiThis study was conducted on research field of Rural Services Research Institute in Harran Plain in Turkey to determine response of paprika pepper (cvs., Ace, Queen and King) to furrow irrigation. The influence of furrow irrigation methods on yield, growth (i.e., leaf area index and plant height), physiology (i.e., total chlorophyll content), quality (i.e., fruit moisture, ASTA, capsaicin, vitamin C and beta carotene) and potential use of CWSI were investigated. Furrow irrigation treatments were conventional furrow irrigation (CFI), deficit furrow irrigation (DFI) and partial root drying (PRD-50 and PRD-25). 50% and 25% of water applied to CFI were given to PDR-50 and PRD-25, respectively. The DFI received 50% of the water given to CFI. Irrigation water supplied was between 238-952 mm whereas Evapotranspiration (ET) was between 438-1050 mm. The highest yield (2310 kgda(-1)) was obtained from CFI and the lowest yield (994 kgda(-1)) was obtained from PRD-25. Leaf area index (LAI) varied between 0.85-2.67, vitamin C between 950.50-2233.10 mgkg(-1) and total chlorophyll content between 475.11-685.15 mgkg(-1), water use efficiency (WUE) between 2.73 and 1.86 kgm(-3), CWSI between 0.17-0.89. Highly significant correlations between CWSI and paprika pepper parameters such as LAI, ET, Vitamin C and chlorophyll content were determined. Interactions between cultivars and furrow application methods were found significant (p < 0.01). Although CFI gave the best result in terms of yield, PRD-50 was recommended under water deficit conditions since both yield and quality parameters were better.Öğe THE ROOTSTOCK EFFECTS ON AGRONOMIC AND BIOCHEMICAL QUALITY PROPERTIES OF MELON UNDER WATER STRESS(Parlar Scientific Publications (P S P), 2018) Dinc, Saliha; Kara, Meryem; Karipcin, M. Zeki; Sari, Nebahat; Can, Zehra; Cicekci, Hacer; Akkus, MehmetIn this study Edali F1 and Balhan Fl melons (Cucumis melo L.) grafted onto different rootstocks (TZ 148 and Jumbo) under water stress conditions (W1-100%, W2-50%, W3-25%). FRAP (Ferric reducing antioxidant power) values increased with the use of TZ 148 and Jumbo rootstocks. At water stress, grafting generally increased ascorbic acid values. Maximum beta-carotene amount was stated for Balhan Fl with W3 level and the beta-carotene values of Balhan/TZ148 melons increased with water stress. p-hydroxybenzoic acid was the compound with the highest quantity among the tested phenolic compounds. Citric, maleic, fumaric and formic acid quantities increased with enhancement of water deficiency whereas tartaric, succinic and acetic acid decreased. Fructose and saccharose quantity decreased as the amount of water given to plant decreased but glucose level was not affected. Consequently, grafting of melons onto favorable rootstocks seems to enhance the amount of health related compounds under water stress conditions.
