Photosynthesis rates, growth and ginsenoside contents of 2-year-old grown at different light transmission rates in a greenhouse

Ginseng is a semi-shade perennial plant cultivated at sloping, sun-shading area in Korea. Recently, due to air-environmental stress and various fungal diseases, greenhouse cultivation has been suggested as an alternative. However, the optimal light transmission rate (LTR) in the greenhouse has not been established.