## 3 Results and Discussion  
The results obtained in this study (Table 2) clearly indicate that the content of bioactive compounds and antioxidant activity was significantly different in the studied group of genotypes. Among the analyzed properties, the highest value of the coefficient of variation (CV, 32.8%) was observed for vitamin C, while flavonoid and phenolic compound values were much lower and very similar (19.2 and 19.8, respectively). Antioxidant activity determined by the ABTS method was characterized by greater variability when compared to the DPPH method. Vitamin C content ranged from 8.5 to 29.7 mg L\(\cdot\)100 g\({}^{-1}\) few which meant over a three times higher content of this compound in cultivars such as Zielona, Karina or clone T5 compared to the cultivar Brazowa. In the study of [PERSON] et al. [30], the average ascorbic acid level was 24.8 mg\(\cdot\)100 g\({}^{-1}\) fw; [PERSON] et al. [31] recorded an average level of ascorbic acid of 22.5 mg\(\cdot\)100 g\({}^{-1}\), while [PERSON] et al. [10] obtained 17 mg\(\cdot\)100 g\({}^{-1}\) fw. Thus, these values differed only slightly from the mean for all genotypes tested in this experiment. Apart from cultivar, works of other authors indicated a possible significant impact on the level of this property of factors such as locality and years of research, resulting in different content of this compound in the range: 17-25 mg\(\cdot\)100 g\({}^{-1}\)[32]; 31.9-44.5 mg\(\cdot\)100 g\({}^{-1}\)[33]; 3.19-32.12 mg\(\cdot\)100 g\({}^{-1}\)[10]. However, the cited values are significantly lower compared to the previously recorded high content in the range from 28.56 to 86.9 mg\(\cdot\)100 g\({}^{-1}\) by [PERSON] and [PERSON] [34] for _Lonicera kamtschatica_, cultivar Gerda 25 and exceptionally high content in the range of 67.66-186.61 mg\(\cdot\)100 g\({}^{-1}\) fw obtained in the study on cultivars and clones by [PERSON] et al. [35]. Nevertheless, it can be indicated (in principle) that this genetic background in most cultivars has a decisive influence on the level of synthesis of this compound, while other genotypes are more variable in this respect. For example, vitamin C content tested in Switzerland was the highest in the cultivar Indigo Gem, lower in IndigoTreat and the lowest in Berry Blue [7] and the same order of cultivars in terms of this compound content was observed in our research. This confirmed the essential role of the genotype of the cultivar in shaping this property, as pointed out by [PERSON] et al. [36]. Increasing the level of vitamin C in fruits seems to be the desired direction of changes in new cultivars, and this is related to reports that the consumption of high vitamin C doses results in enhanced antisensecence and anti-atherosclerotic effects [37]. The largest and most diverse group of polyphenols are flavonoids, which occur in the form of free molecules or bound to sugars. Flavonoids are characterized by a wide spectrum of health-promoting activities and are used in the pharmaceutical, medical and cosmetic industries. This is due to their antioxidant, anti-inflammatory, antimutagenic and anticarcinogenic properties combined with their ability to modulate key functions of cellular enzymes. They are used to combat diseases such as cancer, Alzheimer's disease and atherosclerosis [38]. The following genotypes were characterized by a high