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Öğe Agromorphological changes of Turkish tomato genetic resources according to collection years and areas(International Society for Horticultural Science, 2020) Binbir S.; Duman I.This study aimed to assess the change of agromorphological characters of tomato in Turkey along years and with respect to the initial collection area. For that end, data recorded through the characterization of 170 tomato accessions initially collected from 60 different provinces of Turkey, between 1973 and 2011, and conserved in the Aegean Agricultural Research Institute National Gene Bank, using 30 agromorphologic traits, were investigated. Our findings indicate that the local tomato populations of Turkey have increased in fruit size and leaf density in the last 40 years. As the altitude increased, the number of populations with indeterminate type and small fruit sizes increased. As the latitude and longitude grades increased, populations with smaller fruit structure were encountered. The natural selection of producers, migrations, release of new tomato varieties, changes in the genetic structure of the populations and abandonment of these populations could be the cause of these changes. © 2020 International Society for Horticultural Science. All rights reserved.Öğe The determination of agronomical and technological properties of processing tomato varieties to be introduced to the production in Marmara Region (Turkey) and their reactions to infections by the agents of diseases(International Society for Horticultural Science, 2003) Duman I.; Gümüş M.; Erkan S.In the field trials performed in 2 locations (Biga and Mustafakemalpasa) having different ecological conditions, 14 processing tomato hybrid (F 1) varieties, which are new developed and introduced to our country, and Rio Grande as the reference were used and the features of the plant growth, yield values (yield per decar, yield for earliness and 28 % paste output yield), brix (%), pH, colour (a/b), lightness (L), fruit firmness (kg/cm2), average fruit weight (g), cracked fruits (%) and calyx presence (%) were determined. Moreover, the behaviours of the varieties for the causal agents of diseases seen in the experimental areas were studied. When the data from the all works was evaluated, Primo Pack, H 9775, NDM 0098 and NDM 0099 in Mustafakemalpasa and NDM 0098, NDM 0099, NDM 0097, UG 936 and H 9665 in Biga can be introduced to the raising programme and produced with less problem compared to other varieties.Öğe Development of an Integrated Optical Sensor for Determination of ?-Hydroxybutyrate Within the Microplatform(Springer, 2021) Devamoglu U.; Duman I.; Saygili E.; Yesil-Celiktas O.Ketone bodies (acetoacetate, beta-hydroxybutyrate (?HB), acetone) are generated as a result of fatty acid oxidation in the liver and exist at low concentrations in urine and blood. Elevated concentrations can indicate health problems such as diabetes, childhood hypoglycemia, alcohol, or salicylate poisoning. Development of portable and cost-effective bedside point-of-care (POC) tests to detect such compounds can help to reduce the risk of disease progression. In this study, ?HB was chosen as a model molecule for developing an optical sensor–integrated microplatform. Prior to sensor optimization, ?HB levels were measured at a concentration range of 0.02 and 0.1 mM spectrophotometrically, which is far below the reported elevated ranges of 1–2 mM and resulting absorbance changes were converted into an Arduino microcontroller code for the correlation. Measurements performed with the designed integrated microplatform were found significant. Integrated microplatform was verified with the benchtop spectrophotometer. Measurements between 0.02 and 0.1 mM substrate concentration were found highly sensitive with “y = 0.7347x + 0.00184” with R2 value of 0.9796, and the limit of detection was determined as 0.02 mM. Based on these results, the proposed system will allow on-site and early intervention. © 2021, The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.Öğe Effects of pre-sowing PEG and KH2 PO4 treatments on germination emergence and yield of carrot [Ekim öncesi PEG ve KH2PO4 uygulamalarinin havuç tohumlarinin çimlenme ve çikiş orani ile verim üzerine etkileri](TUBITAK, 1998) Duman I.; Eşiyok D.Studies were conducted at the fileds and laboratories of Ege University, Faculty of Agriculture, Department of Horticulture during 1994-1995 to improve germination and emergence in carrot (Daucus carota L. cv. Nantes) by priming, a presowing seed treatment. Seeds were treated with PEG-6000 (273 g/l) and KH2PO4 (70 g/l) at 15°C for 10 days. Seeds were dried and taken for germination tests at the laboratory and for emergence tests in the open field. Besides germination, seedling emergence and yield were also determined in open field. According to the results the percentage of germination increased to 81% by PEG and 79% by KH2 PO4 applications where as it remaned as 75% in control. Seedling emergence rate was 59% in both treaments at twently-fifth day after sowing while it was 50% in untreated seeds. This improved seedling emergence also enhanced overall yield per unit area (22-23 kg/6 m2 in both treaments, 18 kg/6 m2 in control) and provided homogenous seedling growth.Öğe Effects of seed priming with PEG or K3PO4 on germination and seedling growth in lettuce(2006) Duman I.This study was conducted to improve late and unsynchronized germination and emergence under stressful conditions such as thermo-dormancy in lettuce seeds. Thermo-dormancy becomes especially important when the production is based on direct seeding. Lettuce seeds were treated with PEG-6000 (-5.1 bar) or K 3PO4 (1%) both at 15°C either in an aerated bubble-column (BC) or in petri dishes. Standard germination and emergence tests (at 20°C), emergence under stressful conditions (at 15 and 35°C), emergence in the nurseries and in the direct seeded field have all been conducted with treated seeds in comparison with the non-treated control seeds. K3PO4 applied in BC was the most efficient method in improving germination and emergence in all tests. Emergence rate (E%) at 20°C was considerably improved (91%) and mean emergence time (E 50) reduced (2.74 days) by this treatment, which was 84.2% and 3.63 days in the control seeds, respectively. E% at 15°C reached 90%, while remaining 71% in the control. E50 was also improved by 1.93 days. The most notable results were obtained in E% at 35°C, which was 64.5% in the treated seeds, while being 1.25% in the control seeds. E % was not affected in the field trials by this treatment, while E50 reduced to 6.32 days, while remaining at 11.27 days in the control. Total yield was also increased from 17.50 kg/parcel to 19.29 kg/parcel. © 2006 Asian Network for Scientific Information.Öğe Some characteristics of processing tomato lines from organic breeding programme(International Society for Horticultural Science, 2016) Sonmez I.; Duman I.This study was carried out in Atatürk Central Horticultural Research Institute between 2009 and 2010 using the processing tomato line gene pool already available in the Institute gene pool. The yield characteristics of these tomato lines such as total yield (kg ha-1), marketable yield (kg ha-1), discard yield (kg ha-1), earliness yield (kg ha-1) and theoretical paste yield (kg ha-1) were determined in organic breeding programme during this study. The Jump statistical programme was used for the analysis of variance test of data. According to the statistical analyses, the best total yields were observed in line 18 (12674.7 kg ha-1), line 28 (11349.8 kg ha-1) and line 9 (10486.1 kg ha-1). Additionally, the best theoretical paste yield was obtained in line 18 (2001 kg ha-1), line 12 (1830 kg ha-1) and line 28 (1763 kg ha-1). Consequently, the best results in relation to examined parameters were observed in lines 9, 18 and 28, followed by line 10 and line 12. Lines 21, 25 and 29 resulted in the worst outcomes for the yield characteristics studied. © 2016 International Society for Horticultural Science. All Rights Reserved.
