ASHS 2025 Conference

Hydroponics, the cultivation technique involving soilless media, offer a potential solution to alleviate food insecurity. For this study, six tabletop hydroponic systems were evaluated for their suitability for Romaine lettuce (Lactuca sativa) cultivation. The systems included Ahopegarden, IDOO, Fulsren, LetPot, MUFGA, and Rainpoint. The experiment was set up as a completely randomized design (CRD), with 6 treatments x 3 replicates. The lettuce seeds were sown in horticultural sponges and suspended in nutrient solutions. Following germination, plant growth parameters were recorded every other day during the experimental period. The electrical conductivity (EC), total dissolved solids (TDS), pH, and dissolved oxygen (DO) were monitored weekly for each nutrient solution. The quality and quantity of the lighting systems were measured as correlated color temperature (CCT), photosynthetic active radiation (PAR), and photosynthetic photon flux density (PPFD). The data collected was subjected to analysis of variance (ANOVA). The results showed that the EC, TDS, DO, and pH did not vary greatly among the systems, except for Letpot that showed significantly lower (p