Determination of antioxidative and enzymatic activity in green and red lettuce cultivars affected by microbiological fertilisers and seasons

Lettuce is a worldwide grown leafy vegetable rich in phytochemicals which are essential human diet. The aim of this study was to examine the effect genotype, microbiological fertilisers and season on rosette fresh weight components antioxidant activity. Six cultivars (green ‘Kiribati’, ‘Aleppo’, ‘Aquino’ red ‘Murai’, ‘Carmesi’, ‘Gaugin’) were greenhouse experiment during three consecutive seasons (autumn, winter spring) with application (EM Aktiv, Vital Tricho their combination). Green showed higher than spring winter. cultivar ‘Aleppo’ highest control spring. Microbiological led increased autumn. Mainly, quality parameters compared green (total capacity, total phenolic content, carotenoids POD activity). Red ‘Carmesi’ carotenoids, content combination fertilisers, Tricho, control. In spring, ‘Gaugin’ activity fertilisers. present suggested that jointly influenced quantity emphasis and/or