Effect of irrigation and fertilisation on the biologically active components of tomato

Abstract A three-year (2016–2018) open field experiment was conducted to study the effect of irrigation, fertilisation, and seasonal variation on main bioactive components, such as carotenoids (lycopene β-carotene), total polyphenols, antioxidant capacity, tocopherols processed Uno Rosso F1 tomato. The statistical evaluation measurements proved that multi-year data set cannot be evaluated combined set; values obtained in different years must separately. impact irrigation content components varied from year year. correlation negative between α-tocopherol 2016 2018 ( r = –0.567 –0.605, respectively), polyphenol –0.668), γ-tocopherol 2017 –0.662), while positive observed concentration vitamin C 0.533) 2017, lycopene 0.473) intensity. weak K levels concentrations polyphenols 0.301 0.392, respectively).