The effect of fertilization on antioxidant activity and chemical composition of black currant (Ribes nigrum L.) cultivar 'Ben tron'

The difference between years was significant for all components measured over three years indicating that chemical composition is affected by climate. Soluble solids and colour of the juice were significantly affected by fertilization, but most components showed no effect. The concentration of L-ascorbic acid was at the same level as found earlier, but higher that in other cultivars. The amount of red colour and quality of colour confirmed the earlier studies. No significant interaction between years and fertilization was found for any of the components analysed.