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Öğe Aşılı üretilen crimson tide karpuz çeşidinin hasat olum zamanının saptanması(2014) Özdemir, Ahmet Erhan; Yetişir, Halit; Çandır, Elif; Aras, Veysel; Aslan, Ömer; Üstün, Durmuş; Ünlü, MustafaBu çalışmada; Ferro, RS841, Agentario ve Macis anaçları üzerinde aşılı yetiştirilen Crimson Tidekarpuz çeşidinin hasat olum zamanının belirlenmesi amaçlanmıştır. Aşılanmamış Crimson Tide çeşidimeyveleri kontrol olarak kullanılmıştır. Kulakçık ve sülüğü yeşil, kulakçık ve sülükten birisi kurumuşve kulakçık ve sülüğün her ikisi de kurumuş olmak üzere her anaç x kalem kombinasyonundankarpuzların hasadı yapılmıştır. Meyve ağırlığı, meyve çapı, kabuk kalınlığı, suda çözünebilir toplamkuru madde içeriği (SÇKM), titre edilebilir asitlik (TEA), pH, meyve eti sertliği (MES), meyve etrengi (L*, h°), meyve etinde kopma , meyve olgunluğu ve duyusal analizler gibifiziksel ve kimyasal analizler yapılmıştır. Elde edilen sonuçlara göre, kulakçık ve sülüğü kurukarpuzlarda meyve ağırlığı en fazla olurken, RS841 anacı üzerine aşılı Crimson Tide karpuz çeşidimeyvelerinin ağırlığı en fazla olmuştur. Kulakçık ve sülüğü yeşil olanlarda en az SÇKM ve kulakçıkve sülüğü kuru karpuzlarda duyusal kalite (tat) en yüksek olurken, kulakçık ve sülüğü yeşil olanlardaen düşük tat saptanmıştır. Kulakçık ve sülüğü kuru olanlarda en düşük MES olurken, Ferro ve RS841anaçları üzerine aşılı karpuzlarda MES en yüksek olmuşturÖğe Effects of Chilling Injury, Physical and Biochemical Changes on Grafted Watermelons Stored at Low Temperature(2021) Çandır, Elif; Özdemir, Ahmet Erhan; Yetişir, Halit; Aras, Veysel; Arslan, Ömer; Baltaer, Özay; Ünlü, MustafaWatermelon fruit from Crimson Tide (CT) and Crisby (CR) grafted onto Ferro,\rRS841, Argentario, and Macis rootstocks and ungrafted CT and CR were\rcompared for effects of low temperature storage on chilling injury, physical and\rbiochemical changes at 0°C and 85?90% relative humidity for 21 days. After\rstorage, fruit were hold to 21°C and 75?80% relative humidity for 7 days to\rdetermine shelf life. Quality analyses were determined during storage and\rshelf life at a weekly interval. The chilling injury areas covered <25% of rind\rsurface of fruit for both cultivars. Weight loss in grafted and control fruit were\rvery low (<1%) during storage for both cultivars. Fungal decay was not\robserved during storage for both cultivars, but it was seen during the shelf life\rfor both cultivars. Total soluble solid content remained above 10% in fruit of\rboth cultivars throughout storage period. Lycopene content significantly\rdecreased at the end of storage for both cultivars.Öğe Effects of rootstocks on storage and shelf life of grafted watermelons(Druckerei Liddy Halm, 2016) Ozdemir, Ahmet Erhan; Candir, Elif; Yetisir, Halit; Aras, Veysel; Arslan, Omer; Baltaer, Ozay; Ustun, DurmusWatermelon fruits from non-grafted or grafted 'Crimson Tide' (CT) and 'Crisby' (CR) onto Ferro, RS841, Argentario and Macis rootstocks were compared for their postharvest quality during storage at 7 degrees C for 21 days and additional 7 days at 21 degrees C. Non-grafted and grafted CT and CR fruits did not exhibit chilling injury (CI) symptoms, but the 1-2% of fungal decay occurred after shelf life period following storage. Watermelons grafted on Ferro and RS841 rootstocks had higher flesh firmness thicker rind, lower ripening rating, more intense (higher C*) brighter red (lower h degrees value) color and higher lycopene content after shelf life period following storage, compared to non-grafted fruits. All of the fruit tested by the panelists received high taste scores of >7.9 out of 8.5 at the beginning, but the scores decreased to >6.8 out of 7.7 at the end of shelf life period. Watermelons could successfully be kept for 21 days at 7 degrees C and additional 7 days at 21 degrees C. Watermelons grafted on Ferro and RS841 rootstocks had higher postharvest quality, compared to the non-grafted fruits for both cultivars.Öğe Rootstocks Affected Postharvest Performance of Grafted 'Crisby' and 'Crimson Tide' Watermelon Cultivars(Ankara Univ, Fac Agr, 2018) Ozdemir, Ahmet Erhan; Candir, Elif; Yetisir, Halit; Aras, Veysel; Arslan, Omer; Baltaer, Ozay; Ustun, DurmusWatermelon fruit from 'Crisby' (CR) and 'Crimson Tide' (CT) grafted onto Ferro, RS841. Argentario and Macis rootstocks and non-grafted CR and CT were compared for their postharvest quality at 7 degrees C for 21 days. Changes in rind thickness, weight loss, fruit flesh firmness, taste, total soluble solids, juice pH, titratable acidity, chilling injury and fungal decay, flesh color values. hallow heart, ripening, citric and malic acid, glucose, fructose, sucrose, total sugar, beta-carotene and lycopene were determined during storage at a weekly interval. Watermelon fruit cv. CT grafted on Ferro, RS841 and Argentario rootstocks had thicker rind, lower ripening score, higher flesh firmness and lycopene content, more intense red color during storage, compared to non-grafted fruit. In comparison to non-grafted fruit, CR fruit grafted on Ferro, RS841 and Argentario rootstocks had thicker rind and higher flesh firmness, but higher lycopene content and C* values with lower ripening scores were observed only in the fruit grafted on Ferro and RS841 rootstocks. Macis and Argentario may lead an over-ripening, softening and less intense flesh color with lower lycopene content for CR and/or CT fruit during storage. Watennelons could successfully be kept for 21 days at 7 degrees C. Watermelons grafted on Ferro and RS841 rootstocks retained better postharvest quality, compared to the non-grafted fruit for both cultivars.Öğe Rootstocks affected postharvest performance of grafted ‘Crisby’ an‘Crimson Tide’ Watermelon cultivars(Ankara University, 2018) Özdemir, Ahmet Erhan; Çandir, Elif; Yetişir, Halit; Aras, Veysel; Arslan, Ömer; Baltaer, Özay; Üstün, DurmusWatermelon fruit from ‘Crisby’ (CR) and ‘Crimson Tide’ (CT) grafted onto Ferro, RS841, Argentario and Macis rootstocks and non-grafted CR and CT were compared for their postharvest quality at 7 °C for 21 days. Changes in rind thickness, weight loss, fruit flesh firmness, taste, total soluble solids, juice pH, titratable acidity, chilling injury and fungal decay, flesh color values, hallow heart, ripening, citric and malic acid, glucose, fructose, sucrose, total sugar, ?-carotene and lycopene were determined during storage at a weekly interval. Watermelon fruit cv. CT grafted on Ferro, RS841 and Argentario rootstocks had thicker rind, lower ripening score, higher flesh firmness and lycopene content, more intense red color during storage, compared to non-grafted fruit. In comparison to non-grafted fruit, CR fruit grafted on Ferro, RS841 and Argentario rootstocks had thicker rind and higher flesh firmness, but higher lycopene content and C* values with lower ripening scores were observed only in the fruit grafted on Ferro and RS841 rootstocks. Macis and Argentario may lead an over-ripening, softening and less intense flesh color with lower lycopene content for CR and/or CT fruit during storage. Watermelons could successfully be kept for 21 days at 7 °C. Watermelons grafted on Ferro and RS841 rootstocks retained better postharvest quality, compared to the non-grafted fruit for both cultivars. © Ankara Üniversitesi Ziraat Fakültesi.Öğe Sergen koşullarda aşılı crimson tide çeşidi karpuzlarda kalite parametrelerindeki değişimler(2015) Aras, Veysel; Özdemir, Ahmet Erhan; Yetişir, Halit; Çandır, Elif; Güler, Zehra; Aslan, Ömer; Üstün, Durmuş; Baltaer, Özay; Ünlü, MustafaBu çalışmada; Ferro, RS841, Agentario ve Macis anaçları üzerinde aşılı yetiştirilen Crimson Tide karpuz çeşidinin sergen koşullarda 2009 -2010 yıllarında derim sonrası kalitesini belirlemek amaçlanmıştır. Aşılanmamış Crimson Tide çeşid i meyveleri kontrol olarak kullanılmıştır. Ülkemizde yaygın olarak kullanılan sergen koşullarında derimden sonra meyveler 27 ° C’de %50±5 oransal nem koşullarında 7 gün depolanmıştır. Meyve örneklerinde; meyve kabuk kalınlığı (mm), ağırlık kayıpları oranı (% ), suda çözünebilir toplam kuru madde içeriği ( SÇKM, %), meyve eti sertliği (MES, kg- k), titre edilebilir asitlik (TEA, %), meyve suyu pH’sı, meyve et rengi (L* a* b*) , mantarsal bozulmalar (%), fruktoz, g likoz, s akkaroz ve toplam şeker içerikleri (%) ile ? -karoten, toplam likopen ve toplam karotenoid içerikleri (µg/g ) ile meyvelerin tat durumunu belirlemek için duyusal analizler (1 -9) gibi fiziksel ve kimyasal parametrelerde meydana gelen değişimler incelenmiştir. Bulgularımıza göre, sergen koşullarda Crimson Tide karpuz çeşidinde mantarsal bozulma görülmemiştir. S ergen koşulunda aşılı ve aşısız Crimson Tide karpuz çeşidi meyvelerinde hakim şekerin sakkaroz (ortalama %3 .76 -5 .58) olduğu saptanmıştır. Ağırlık kayıpları, SÇKM, meyve et rengi a* ve b* değerleri ve sakkaroz içeriği artarken, meyve kabuk kalınlığı, MES, TEA, fruktoz, g likoz ve toplam şeker, toplam likopen ve toplam karotenoid içerikleri, meyve et rengi L* değeri ve duyusal tat azalmıştır.
