Growth after Transplanting and Seedling Quality of <italic>Veronica nakaiana</italic> and <italic>Veronica kiusiana</italic> var. <italic>glabrifolia</italic> as Infl

Background and objective: This study was conducted to investigate the growth after transplanting and seedling quality of <i>Veronica nakaiana</i> and <i>V. kiusiana</i> var. <i>glabrifolia</i> according to number of cells in plug tray, medium composition, and fertilization level in plug seedling production.Methods: The seeds of <i>V. nakaiana</i> and <i>V. kiusiana</i> var. <i>glabrifolia</i> were sown according to number of cells in plug tray (50, 105, 162, 200, and 288-cell) and medium composition (mixtures of peat moss and perlite at ratios of 100:0, 80:20, 60:40, 40:60, 20:80, and 0:100). And, after sowing the <i>V. kiusiana</i> var. <i>glabrifolia</i> seeds, they were treated with different fertilizer levels (Hyponex 0, 0.78, 1.56, 3.12, and 6.24 g/tray) during the seedling period.Results: The seedling growth of <i>V. nakaiana</i> was more effective in plug tray of 50-cell than in the other plug trays, and there was no difference in growth after transplanting between 50 and 105-cell treatments. And, the growth of the seedlings was best in media mixed with peat moss and perlite at ratio of 100:0 and 80:20. In <i>V. kiusiana</i> var. <i>glabrifolia</i>, plug tray of 105-cell was best for seedling growth and plant growth after transplanting in pots. And, the seedling growth was the best in media mixed with peat moss and perlite at ratios of 80:20 and 60:40 compared to other media. The seedling growth was better in Hyponex treatments of 3.12 g/tray than in control and 6.24 g/tray treatments.Conclusion: The sowing in plug trays of 105-cell filled with a medium mixed with peat moss and perlite at a ratio of 80:20 was most suitable for the seedling growth of <i>V. nakaiana</i> and <i>V. kiusiana</i> var. <i>glabrifolia</i>. In <i>V. kiusiana</i> var. <i>glabrifolia</i>, the treatment of Hyponex at a total of 3.12 g/tray during the seedling period after sowing was most effective for the growth of seedling.