White LED Lighting Increases the Root Productivity of Panax ginseng C. A. Meyer in a Hydroponic Cultivation System of a Plant Factory

To identify effective light spectra for increasing the productivity of Panax ginseng, we conducted experiments in a controlled environment using hydroponic cultivation system plant factory. We investigated effect single LEDs (red, blue, and yellow) mixed (red + blue red white). The relationships between four yellow, white) physiological responses (net photosynthetic rate, stomata conductance, transpiration intercellular CO2 partial pressure), as well growth (shoot root biomass), were analyzed multivariate statistical analysis. Among response variables, shoot biomass was not increased by any pathway, only pressure. Red yellow biomass, whereas white promoted an increase net rate enhanced biomass. In contrast, less than other both Therefore, are most is factory that uses artificial LED lighting. Furthermore, pressure important variable P. ginseng.