Yielding and fruit quality of Lithuanian sweet cherry cultivars grown under the climatic and soil conditions of Warmia

Abstract

In 2006-2008, yielding was determined and biometric measurement as well as chemical analysis was carried out for five Lithuanian sweet cherry cultivars, 'Agila', 'Seda', 'Vasare', 'Ventenue', and 'Jurgita', and two cultivars commonly grown in Poland, 'Ulster' and 'Burlat'. Trees grafted on Mazzard seedlings were planted in 2002 in the orchard of the Pozorty Experimental and Production Institute in the village of Łęgajny near Olsztyn. The highest mean yield for the tested cultivars was obtained in 2008, while the lowest was in 2007, when the highest ground frosts were recorded during the cherry blossoming period. During the three years of research, the highest mean yield for the Lithuanian sweet cherry cultivars was established for the 'Vasare' cultivar, which together with the 'Burlat' cultivar made a homogenous group of the highest values. The mean fruit weight of the Lithuanian cultivars was lower than in the case of 'Burlat' and 'Ulster', while the largest fruit amongst the Lithuanian cultivars were recorded for 'Jurgita' and 'Agila'. The chemical composition analysis of fruit revealed significant differences both between the cultivars and the years of the research. The fruits of the studied cultivars accumulated the lowest amounts of total saccharides and vitamin C in the coolest year under analysis, 2007. The highest mean of total saccharide content was recorded for fruit of the 'Vasare' and 'Seda' cultivars. Fruit of the 'Agila' cultivar accumulated the highest amounts of organic acids and vitamin C.

THE EFFECTS OF InCa FERTILIZER USED IN FOLIAR NUTRITION ON YIELD QUANTITY AND QUALITY AND SELECTED PHYSIOLOGICAL PARAMETERS OF SWEET CHERRY CV. ‘BURLAT’

“…Similar conclusion was published by Chełpiński et al (2007) and Erogul (2014), who reported that calcium fertilization did not affect fruit weight. The fruit harvested in our experiment were characterized by slightly greater average weight, width and length than the fruit of the same cultivar studied by Kurlus (2004) and Bieniek et al (2011). Weight, width and length of our fruit were similar to the values reported by Stojanovic et al (2012), who found that average weight of 'Burlat' cv.…”

“…According to Sîrbu et al (2012) and Prvulović et al (2011) fruit antioxidant properties depend on many factors, including the species, cultivar, cultivation system, climatic conditions or agrotechnical procedures. L-ascorbic acid concentration in the study fruit seemed to be high, as according to Ferreti et al 2010, Bieniek et al (2011) and McCune et al (2011) its content in sweet cherry is about 7 mg • 100g -1 FW. However, Serrano et al (2005) pointed out that it depended on fruit ripeness, and in ripe fruit its concentration may be as high as 28 mg • 100g -1 FW (Table 2).…”

Assessment of Some Sweet Cherry Cultivars in Comparison with Their Genitors under the Conditions of the North-Eastern Area of Romania

“…Sen et al (2014) observed weight and fruit firmness loss values of three sweet cherry cultivars during the transport and marketing stages. Bieniek et al (2011) found 3.78 g to 6.45 g as mean of three years mean for the weight of sweet cherry fruits for cultivars grown under the climatic and soil conditions of Warmia, Lithuania, while Demirsoy and Demirsoy (2004) reported for local Turkish sweet cherry cultivars values of fruit weight ranging from 2.9 to 7.6 g.…”

THE EFFECTS OF FOLIAR NUTRITION WITH InCa FERTILIZER ON THE CHEMICAL COMPOSITION OF LEAVES AND FRUITS OF SWEET CHERRY

“…The trees were sprayed with InCa calcium fertilizer based on CaT technology (manufacturer: Plant Impact), containing 8.0% N, 13.0% CaO, and 1.0% Zn [Arysta LifeScience, 2013]. The fertilizer was applied three times, at a dose of 1.5 dm 3 •ha. The first foliar fertilization was performed at the beginning of the flowering period, and the next two took place at fourteen-day intervals.…”