| The growth and yield of green-leaf Romaine lettuce grown under a tropical greenhouse using the vertical aeroponic system with rootzone cooling were evaluated in this study. The experiment was set up using a Combined Analysis in Strip-Plot design in a 6m x 12m greenhouse wherein the two rootzone cooling methods, a ground heat exchanger (GHE) and improvised chiller, were the treatments while harvest periods of 20, 25, and 30 days after transplanting (DAT) were the horizontal factors, and the levels of the tower (top, middle and bottom) were the vertical factors. The IRRI-Statistical Tool for Agricultural Research (STAR) was used for data analysis. Results revealed that longer and broader leaves and higher yield were observed using the improvised... |
