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The study aimed to determine the most suitable light environment for cultivation of medicinal plants using plant bioelectric potential as an index. Perilla frutescens var. frutescens was selected as a medicinal plant, which is relatively easy to obtain, fast-growing, and easy to grow. In this study, three different light sources (A, B, and C) with varied light spectrum ratios, were used to cultivate P. frutescens var. frutescens. We compared the Von (difference between minimum and maximum bioelectric potential) among the light sources. P. frutescens var. frutescens was harvested 30 days after germination, and plant height, Base diameter, Number of leaves, fresh weight, and Raw weight of leaf were measured. Von for light source C was determined to be the largest. Plants cultivated under light source C demonstrated the maximum plant height and Raw weight of leaf. Light source C had a higher intensity at wavelengths of 450 nm compared with the other sources. However, wavelength region promoting growth of P. frutescens var. frutescens remains unidentified. |
