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Öğe Changes in Quality Parameters during Fruit Development and Their Relationship with Optimum Harvest Maturity for 'Big Top' and 'Perfect Delight' Nectarine Cultivars(Int Soc Horticultural Science, 2010) Celik, M.; Ozdemir, A. E.; Candir, E. E.; Dilbaz, R.The objective of this study was to determine the changes in the quality of the 'Big Top' and 'Perfect Delight' nectarine cultivars grown in Mersin (Yenice/Tarsus). Fruits were obtained from trees grafted on GF-677 rootstock and planted 3x5 m in an orchard of Uni Tarim. Fruit width, length and height, weight, weight/diameter, skin and flesh color, fruit flesh firmness, total soluble solid (TSS), titratable acidity (TA), juice pH and TSS/TA were measured on fruit samples collected from tagged trees from after thinning in the period of small fruit to ripening at a 7-15 days interval during fruit development. Data indicated that fruit flesh firmness, TSS, skin color especially a* value of CIE L*a*b* and weight/diameter were important criteria in determining optimum harvest maturity. Based on all the criteria, the second and the third weeks of June were the optimum harvest time for 'Big Top' and 'Perfect Delight' cultivars in order to deliver fruit at optimum commercial maturity and quality and to obtain adequate storage time.Öğe Changes in Quality Parameters of 'Satsuma' Mandarin during Fruit Development and Their Relationship with Optimum Harvest Maturity(Int Soc Horticultural Science, 2010) Ozdemir, A. E.; Candir, E. E.; Kaplankiran, M.The objective of this study was to determine quality changes of the 'Satsuma' mandarin cultivar growing in Dortyol and Samandag districts of Hatay province in Turkey. The research was carried out in 2003-2004. Fruits were obtained from trees which were grafted on Sour Orange rootstock. Fruit width, length and weight, skin color (L*, h degrees), fruit juice, total soluble solid (TSS), titratable acidity (TA), juice pH and TSS/TA were measured on fruit samples in similar size that were collected from trees from June to ripening. Samples were taken at 7 to 15 days interval during fruit development. Data indicated that skin color especially h degrees value of CIE L*a*b*, fruit juice, TSS and TSS/TA were important criteria in determining optimum harvest maturity. This period lays between mid-October (177-185 days after full bloom) for 'Satsuma' mandarins in Dortyol and Samandag.