COMPOSITIONAL CHANGES OF VINE-RIPE GREENHOUSE TOMATO (SOLANUM LYCOPERSICUM L.) CULTIVARS FROM TWO TYPES OF SOILLESS GROWTH MEDIA
Studies were conducted to investigate quality attributes of four tomato cultivars (Caraibe, Summerstar, Striker and Hybrid 61) grown in a Gable roof greenhouse in two types of soilless growth media (spent mushroom substrate (SMS) and coconut coir (CC) and stored at 20°C for 10 days. The cultivars were analyzed for marketable yield, colour, puffiness, number of locules, mesocarp thickness, pH, total soluble solids (TSS), total titratable acid (TTA), TSS:TTA and percentage decay-free fruits. The tomato cultivar Hybrid 61 grown in CC had the highest marketable yield with no decay fruits after 10 days at 20°C, but tomato cultivar Summerstar grown in both media had the highest incidence of fruit decay. Caraibe and Striker cultivars grown in SMS had a TSS value of 7.97 and 8.43 respectively and TTA of 103.68 and 112.90 mg/100 g respectively after 10 days at 20°C. Striker grown in CC had the highest mesocarp thickness (7.82 mm) while Hybrid 61 grown in SMS which had the lowest mesocarp thickness (1.73 mm). The study indicates that the physiochemical attributes of vine-ripe tomato cultivars can be affected by the type of soilless growth media.
Mark, N., Mohammed, M., Isaac , W.A. and Solomon, L. (2014). COMPOSITIONAL CHANGES OF VINE-RIPE GREENHOUSE TOMATO (SOLANUM LYCOPERSICUM L.) CULTIVARS FROM TWO TYPES OF SOILLESS GROWTH MEDIA. Acta Hortic. 1047, 165-170
greenhouse, physiochemical attributes, storage, spent mushroom substrate, coconut coir