As shown in Fig. 1, each seed was placed within a single cell
(1 cm ) 1cm) 20 cm) of a multi-cell polycarbonate panel (1 cm ) 25 cm ) 20 cm), closed on the bottom with filter paper, and dipped into distilled water. In this way the seed was forced to grow in the vertical direction along the cell’s axis. Each polycarbonate panel contained 23 seeds.