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The experiment was established at private apricot orchard near Cacak (Western Serbia) during 2010 and 2011. In the present study we wanted to determine the physicochemical attributes, phenolics content and antioxidant capacity of three new Serbian cultivars ('Aleksandar', 'Biljana', 'Vera') grafted on Myrobalan seedlings. Results indicated that physico-chemical attributes significantly varied among cultivars. Similarly, total phenolics and flavonoids content and antioxidant capacity significantly depend on the cultivars. Generally, new Serbian cultivars had better properties evaluated than control ('Hungarian Best'), except stone weight, fruit firmness, moisture and total phenolics content. The highest values of total phenolics and flavonoids content were found in 'Aleksandar', whereas the highest antioxidant capacity was recorded in 'Vera'. Finally, new Serbian cultivars could be recommended for planting in similar conditions and apricot growing programs.

A 3-year study was done to compare the blossoming and harvesting date, fruit physical and chemical composition of six nectarine cultivars grown with High Density Planting system under western Serbian conditions. A high variability among and within cultivars was found and significant differences were observed among them in all properties nalyzed. Year-by-year variations were observed for blossoming and harvesting date, ength of fruit growth, soluble solids content, fruit weight and fruit firmness. On the basis f evaluated data, the best fruit performance registered in 'Caldesi 2000' and 'Syrio' rown with HDP on heavy soil. Contrary, the poor fruit physico-chemical properties were bserved in 'Mayfire', especially in 'Nectared 4'. This evaluation may help to select a set of nectarine cultivars with better fruit quality attributes, which in our growing conditions might be indicated in 'Caldesi 2000', 'Syrio', somewhat 'Weinberger' and 'Fantasia'.

Milosevic T.,University of Kragujevac | Milosevic N.,Fruit Research Institute in Cacak | Glisic I.,University of Kragujevac | Nikolic R.,University of Kragujevac | Milivojevic J.,Center for Small Grains
Horticultural Science | Year: 2015

From 2008 to 2013 the phenology, early tree growth, precocity, yield, fruit quality attributes and leaf nutrient status of four sweet cherry cultivars (May Early, Germersdorfer, Sunburst and Celeste) were evaluated on Colt rootstock in the Cacak region (Serbia) with 1,250 trees/ha. The soil type was heavy and acidic. The results showed that cv. May Early blossomed and ripened earlier than the other cultivars, and had the highest tree vigour, better yield performance and the poorest fruit physico-chemical attributes. The best fruit quality was found in cv. Sunburst which is categorized as a low precocious cultivar with small yield capacity. Lower tree vigour, good productivity and fruit quality were shown by cv. Celeste. In general, leaf analysis indicated that all cultivars had excessive levels of N and Cu, and in some cases P, whereas K, Ca, Mg, Fe, Mn, Zn and B were deficient in all cultivars. The best balanced nutritional values (∑DOP) were observed in cv. Sunburst, whereas wider imbalance was observed in cv. Celeste for macronutrients. In contrast, the ∑DOP for micronutrients indicated that cv. Celeste had the best balanced nutritional values, whereas cv. Sunburst had the worst.

Milosevic N.,Fruit Research Institute in Cacak | Glisic I.S.,Fruit Research Institute in Cacak
Acta Scientiarum Polonorum, Hortorum Cultus | Year: 2014

Fruit apricot dimensions, weight, size and shape are the most commonly measured pomological properties. The size and shape features of 13 apricot (Prunus armeniaca L.) cultivars and promising Serbian selections grown in Western Serbia were investigated using a multivariate analysis. The apricots promoted fruits wider than long in shape, except ‘Harcot’, ‘T 7’, ‘Précoce de Tyrinthe’, ‘Roksana’ and ‘Vera’, whereas all cultivars and selections are wider than thick. Most of cultivars and/or selections tend to round shape. Mean values for fruit and stone weight, flesh rate, geometric mean diameter, kernel weight, sphericity, aspect ratio, surface area and volume ranged from 37.09 to 81.60 g, 2.71 to 4.18 g, 91.93 to 96.46%, 41.76 to 65.08 mm, 0.60 to 1.17 g, 0.94 to 1.03, 95.04 to 108.09%, 55.13 to 133.77 cm2 and 38.31 to 145.10 cm3, respectively. For the most of attributes evaluated, ‘Roksana’ had the highest values. A high correlation was found among some physical attributes. According to their 22 properties, the apricots grouped into five clusters. There was either relative independence or close correspondence among the evaluation indexes of apricot fruit quality. Principal components analysis showed that the first three principal components variance accumulation contribution rate amounted to 85.77%, which reflected most of the size and shape characteristics of apricots. © 2014, Wydawnictwo Akad Rolniczej W Lublinie. All rights reserved.

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