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    Fruit quality of seven nectarine cultivars produced in Turkey
    (Int Soc Horticultural Science, 2020) Harman, Y.; Akin, M. A.; Turk, B.; Engin, H.; Sen, F.
    Although nectarine is produced in many countries for quite a long time, it became widespread only lately in Turkey. Demand for nectarine fruits is gradually increasing in both domestic and foreign markets, therefore, new cultivars are found in the markets. The aim of this research is to determine the physical, chemical and biochemical characteristics of different nectarine cultivars such as 'Beauty', 'May', 'Fresh Queen', 'Red', 'Sunny', 'Shine' and 'Globe', that are commonly grown in the Aegean region. The average fruit weight, width and length of 'Globe' nectarine were the highest with 187.9 g, 70.1 mm and 67.5 mm, respectively; while the lowest values were found as 101.7 g, 55.6 mm and 58.5 mm, respectively in 'Piun'. Fruit skin colors showed significant differences, and the color values of C* and h degrees ranged between 24.18 and 47.77 and 24.47-33.67, respectively, according to the cultivars. In this research, ' Globe' had the highest fruit flesh firmness with 58.2 N, followed by 'Sunny' (53.0 N) and 'Shine' (51.0 N), while the others varied between 40.0 and 45.0 N. Additionally, the soluble solids content was the highest in 'Shine' with 16.4% and the lowest in 'May' (10.7%). Significant differences were observed in total phenol content and antioxidant activity of analyzed nectarine cultivars. The results obtained from the study showed that the physicochemical properties of nectarine cultivars display significant differences.
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    Öğe
    Investigation of Physiological Disorders and Fruit Quality of Sweet Cherry
    (Int Soc Horticultural Science-Ishs, 2009) Engin, H.; Sen, F.; Pamuk, G.; Gokbayrak, Z.
    Physiological disorders (deep suture, fruit cracking, and double fruit), and fruit quality of Van' sweet cherry (Prunus avium L.) cultivar in relation with irrigation, gibberellic acid (GA(3)) and nitrogen (urea) were studied. Irrigation treatments were tested as 100% (full irrigation), 50% (moderate water stress) and 20% (severe water stress) replenishment of water depleted from the 100% replenishment treatment at 90 cm soil profile at ten day intervals. GA3 and nitrogen were applied to trees during flower bud differentiation period at the doses of 100 mg L-1 and 900 mg L-1, respectively. Lowest amount of double fruits were obtained from I-50+N+GA(3) application. Deep suture were most seen in the fruits exposed to moderate water stress plus nitrogen application. Fruit cracking was not affected statistically significant by any of the applications. All of the quality attributes of cherry fruits were statistically influenced by all the treatments and weather conditions.