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    Clonal selection of 'Kutahya' sour cherry
    (International Society for Horticultural Science, 2005) Burak, M.; Erbil, Y.; Kaynas, K.
    As for many other temperate fruit species, Turkey is the center of origin for sour cherry. 'Kütahya' sour cherry is a well known local variety, with very high fruit quality and attractiveness. 'Kütahya' has been grown for centuries in nearly all parts of Turkey. In earlier studies, many clones of 'Kütahya' were evaluated, with 22 selected for the National Selection Program and adaptation trials. From 1992 to 1999, phonological and pomological characteristics of 'Kütahya' sour cherry clones were studied to identify the best from among the 22 candidates that were selected in the second step of the National Selection program. This study was established by planting 7 trees of each clone on P. avium for evaluation of 12 characteristics, and 8 parameters were taken into account as the selection criteria. These included yield, flesh/pit ratio, juice ratio, juice color, taste, soluble solids/acid ratio, fruit size and attractiveness. The top-ranked clones were selection numbers 1353, 1408 and 1350, which are suggested as promising types of 'Kütahya' sour cherry.
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    Combined effects of controlled atmosphere storage and 1-methylcyclopropene on stored fruit quality of 'Abbé Fétel' pear
    (International Society for Horticultural Science, 2010) Sakaldas, M.; Kaynas, K.; Yalav, F.; Yurt, U.
    In this research, the combined and separate effects of 1-Methylcyclopropene (1-MCP) and controlled atmosphere storage on some quality and biochemical properties of the 'Abbé Fétel' pear variety were investigated. Fruit harvested from Çanakkale- Kepez region (Turkey) were treated with 625 ppb of 1-MCP, controlled atmosphere storage at 4% O2 and 1% CO2 and a combination of these treatments. Treated fruits were stored at -1 to 0°C and 90-95% RH conditions for 2,5 or 5 months. In addition fruits were kept at 18-20°C conditions for 7 days after each storage period to measure shelf life. After harvest and each storage period with shelf life, some quality properties were measured. The quality measurements were skin color, fruit firmness, total soluble solids, titratable acidity, pH and decay incidence. In addition fruit taste was graded. According to the results a combination of controlled atmosphere and 1-MCP applications and only 1-MCP application were found more effective as keeping the quality during storage and shelf life.
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    Combined Effects of Controlled Atmosphere Storage and 1-Methylcyclopropene on Stored Fruit Quality of 'Abbe Fetel' Pear
    (Int Soc Horticultural Science, 2010) Sakaldas, M.; Kaynas, K.; Yalav, F.; Yurt, U.
    In this research, the combined and separate effects of 1-Methylcyclopropene (1-MCP) and controlled atmosphere storage on some quality and biochemical properties of the 'Abbe Fetel' pear variety were investigated. Fruit harvested from Canakkale-Kepez region (Turkey) were treated with 625 ppb of 1-MCP, controlled atmosphere storage at 4% O-2 and 1% CO2 and a combination of these treatments. Treated fruits were stored at -1 to 0 degrees C and 90-95% RH conditions for 2,5 or 5 months. In addition fruits were kept at 18-20 degrees C conditions for 7 days after each storage period to measure shelf life. After harvest and each storage period with shelf life, some quality properties were measured. The quality measurements were skin color, fruit firmness, total soluble solids, titratable acidity, pH and decay incidence. In addition fruit taste was graded. According to the results a combination of controlled atmosphere and 1-MCP applications and only 1-MCP application were found more effective as keeping the quality during storage and shelf life.
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    Determination of the effects of ecological differences on volatile compounds in 'Bayramic Beyazi' nectarine
    (Int Soc Horticultural Science, 2020) Gundogdu, M. A.; Sakaldas, M.; Kaynas, K.; Seker, M.
    White nectarine fruits, which are registered with the name of 'Bayramic Beyazi', are the novel stone fruit genotype grown in Canakkale. The fruits have a favorable and rich flavor for customer acceptance. White nectarines with high quality are the original material for improvement of new stone fruit varieties. The aim of present study was to determine the effect of ecological differences on volatile compounds in 'Bayramic Beyazi' white nectarine, which is widely grown in Canakkale Province in Turkey. Fruits of 'Bayramic Beyazi' white nectarine were harvested from 4 different commercial orchards in Canakkale and Balikesir provinces. These orchards cultivated in Bayramic and Pinarbasi counties in Canakkale province (2 plantations), Havran and Edremit counties in Balikesir province in 2017 season. Volatile component contents of ripe fruits of 'Bayramic Beyazi' were extracted by using diethyl ether solvent for liquid-liquid extractions. The amounts and identifications of the volatile compounds of extracted samples determined with a gas chromatography-mass spectrometer. According to the obtained results, a total of 30 volatile compounds were detected in total white nectarine fruits aroma profiles in different regions. Those were 10 esters, 6 C6 compounds, 5 terpenes, 5 aldehydes and 4 lactones. Hexanal, 2-hexanal, gamma-decalactone, Z-3-hexyl acetate and ethyl acetate were found as important major volatiles in all 'Bayramic Beyazi' fruits. Although C6 compounds and lactones were determined higher ratio in Bayramic location; fruits in Ezine location were found to have higher esters, aldehydes and terpenes.
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    Effects of 1-Methylcyclopropene on Fruit Quality and Biochemical Properties of 'Esme' Quince Cultivar during Long Term Storage
    (Int Soc Horticultural Science, 2010) Sakaldas, M.; Kaynas, K.; Dombaz, Y.
    In this research, the effects of postharvest 1-methylcyclopropene (1-MCP) treatments on fruit quality of 'Esme' quince cultivar during storage were evaluated. For this purpose, fruits harvested from Canakkale-Kepez province were treated with 1-MCP (Smartfresh (TM)) with 625 and 1250 ppb doses for 24 hours and were stored in plastic boxes at 0-1 degrees C temperature and 85-90% relative humidity for 2, 4 and 6 months respectively. After each storage period, fruits were kept at 18-22 degrees C for 7 days as shelf life. After harvest and each storage period with shelf life, some quality parameters as skin color, weight loss, fruit firmness and total soluble solids were measured. Also the rates of internal browning were calculated. Furthermore, some biochemical properties as titratable acidity were evaluated. Based on the results, most of the quality parameters and biochemical properties were affected positively by 1-MCP (Smartfresh (TM)) applications during the storage periods. Thus 1-methylcyclopropane applications were found effective at decreasing the rate of internal browning in quince fruits.
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    Investigation of biochemical and pomological characteristics of different olive cultivars during maturation in North Aegean region of Turkey
    (Int Soc Horticultural Science, 2016) Gundogdu, M. A.; Kaynas, K.
    Olive (Olea europaea L.) has great genetic variation in Turkey as important crop due to its economic value. There are many cultivars, types and landraces with various morphological characters in different ecological conditions of Turkey, having good potential for productivity, oil quality and table olive characters. The northwestern region of Turkey with cool subtropical climate has most suitable ecological conditions for highest quality olives and olive oils. This research was carried out to compare some biochemical and pomological characteristics of six local olive cultivars including 'Ayvalik', 'Domat','Gemlik', 'Memecik', 'Samanli' and 'Uslu', which are widely grown in Turkey. Cultivars were collected in intervals of about 10 days from September 15 to December 22 in 2014. In this research fruit width (mm), fruit length (mm), fruit weight (g of 100 fruits), moisture content (%), pulp ratio (%), maturity index (MI), total chlorophyll content (mu g mL(-1)) and total carotenoid content (mu g mL(-1)) were determined. As a result of study, concentrations of total chlorophyll decreased although concentration of carotenoids increased when skin color of fruit is turning red, purple or black on more than a half of the surface (Maturity Index>3 and MI=4). Also fruit size enlarged with the increase of maturity.
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    Investigation of fatty acid compositions and some pomological characteristics of different olive cultivars during maturation in cool subtropical condition of Turkey
    (Int Soc Horticultural Science, 2020) Gundogdu, M. A.; Kaynas, K.
    Olive (Olea europaea L.) has great genetic variation in Turkey as important crop due to its economic value. There are many cultivars, types and landraces with various morphological characters in different ecological conditions of Turkey, having good potential for productivity, oil quality and table olive characters. The northwestern region of Turkey with cool subtropical climate has most suitable ecological conditions for highest quality olives and olive oils. This research was carried out to pomological characteristics and fatty acid composition of eight local olive cultivars including 'Ayvalik', ' Domat', 'Edincik Su', 'Gemlik', 'Karamursel Su', 'Memecik', 'Samanli' and 'Uslu', which widely grown in Turkey. Cultivars were collected in intervals of about 10 days from September 15 to December 22 in 2014. In this research fruit weight (g of 100 fruits), pulp ratio (%), maturity index (MI) and fatty acid composition were determined. As a result of this study, 'Domat', 'Karamursel Su' and 'Memecik' had the heaviest fruits and 'Memecik' and 'Domat' cultivars had the highest pulp ratio (%). 'Karamursel Su', 'Gemlik' and 'Samanli' were found to the highest maturity index values at the end of harvesting time. 'Karamursel Su' 'Domat' and 'Edincik Su' had highest ratios of polyunsaturated fatty acids whereas 'Memecik' and 'Uslu' cultivars had the highest ratios of monounsaturated fatty acids.
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    The Combined Effects of 1-Methylcyclopropene and Modified Atmosphere Packaging on Fruit Quality of 'Fuyu' Persimmon Fruit During Storage
    (Int Soc Horticultural Science, 2010) Kaynas, K.; Sakaldas, M.; Kuzucu, F. C.; Bicen, E.
    In this research, the effects of modified atmosphere packaging (MAP), 1-methylcyclopropene (1-MCP) treatments and furthermore the combination of MAP and 1-MCP on quality of 'Fuyu' persimmon fruits during storage period were studied. Modified atmosphere packaging was based on low density polyethylene (LDPE); 1-MCP (Smartfresh (TM)) treatments were 625 and 1250 ppb for 24 hours at 18-20 degrees C. Treated and untreated control fruits were stored at 0-1 degrees C and 85-90% RH for 40, 80 and 120 days respectively. The quality parameters evaluated were; weight loss, fruit firmness, total soluble solids, titratable acidity, skin color and flesh color. Furthermore the decay incidence was determined visually. Postharvest 1-MCP (Smartfresh (TM)) treatments and modified atmosphere packaging affected some quality properties of 'Fuyu' persimmon fruits. Thus, the combination of the treatments was found the most effective as keeping the quality.
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    The Effects of Different Pollinizers on the Fruit Set and Pomological Characteristics of '0900 Ziraat' Sweet Cherry
    (Int Soc Horticultural Science, 2008) Kaynas, K.; Sekar, M.; Yucel, Z.; Alkan, T.
    10900 Ziraat' is the leading sweet cherry (Prunus avium L.) cultivar with high quality fruit characteristics in Turkey. Despite its importance, pollination problems remain, resulting in poor fruit set in different ecological conditions of the country. The current research was aimed at determining the effects of different pollinizers on '0900 Ziraat' fruit set and fruit quality parameters. For this purpose, 'Premier Giant', 'Van', 'Stark's Cold', 'Celeste', 'Sunburst', 'Merton Late', 'Bing', 'Lapins', 'Bigarreau Gaucher', 'Sweetheart', 'Canada Giant', 'North Wonder', 'Burlat' and 'Lambert' were chosen as pollen sources. During the research, prebloom and full bloom dates in the Canakkale ecological conditions were recorded for 2002 and 2003. After fruit set, monthly determinations of fruit set percentage and cross compatibility were made. After the fruit ripened, they were analyzed for pomological characteristics such as fruit and stone weight, fruit size, pH, internal and external fruit coloration, stem length, titrable acidity and total soluble solids.
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    The Effects of Different Postharvest Applications and Different Modified Atmosphere Packaging Types on Fruit Quality of 'Angeleno' Plums
    (Int Soc Horticultural Science, 2010) Kaynas, K.; Sakaldas, M.; Yurt, U.
    In this research, the effects of different postharvest applications as 1-methylcyclopropane (1-MCP), sucrose polyesters of fatty acids and different modified amosphere packaging types based low density polyethylene (LDPE), polyvinylchloride (PVC) on fruit quality of 'Angeleno' plums were evaluated. For this purpose, fruits harvested from Canakkale province were treated with 1-MCP (Smartfresh (TM)) and coating material including sucrose polyester (Semperfresh (TM)). In addition other groups of fruits were packaged with LDPE and PVC shrink film. These 4 group of fruits with control fruits that were untreated and unpackaged were stored at 0-1 degrees C and 85-90% RH for 30, 60, 90 and 120 days respectively. After each storage period fruits were kept at 18-22 degrees C for 3 days as shelf life. After harvest and each storage period, some quality parameters as weight loss, fruit firmness, soluble solids content, titratable acidity and fruit flesh color brightness were measured. Furthermore, the rate of internal breakdown was determined. According to the results, both of the applications had positive effects on the quality parameters after each storage period. Furthermore, modified atmosphere packaging based LDPE and sucrose polyester (Semperfresh (TM)) applications had clear effects.