Effects of Nutrient Solution Electrical Conductivity and pH on the Productivity of the Medicinal Plant Pinellia ternata Breit.

Abstract

The electrical conductivity (EC) and pH of nutrient solutions appear to affect the growth of some crops (e. g., Wu et al., 2004; Dewir et al., 2005; Samarakoon et al., 2006; Zhao et al., 2013; Singh et al., 2019). With regard to environmental effects, we already have shown that the medicinal plant Pinellia ternata Breit. is affected by the hydraulic conditions surrounding the corm (Eguchi et al., 2014), and the temperature surrounding the plant (Eguchi et al., 2016, 2019, 2020). In this study, we examined the effects of the nutrient conditions, EC, and pH on the yield and the quality of P. ternata.