Effect of Light Intensity and Temperature on the Growth and Functional Compounds in the Baby Leaf Vegetable Plant Peucedanum japonicum Thunb.

• DOI: 10.7235/hort.20200074
• Publication Date: 2023-09-18T08:51:22Z
• Authors: Jae-Kyung Kim; Ho-Min Kang; Dong-Chul Jang; Jong-Kuk Na; Ki-Young Choi
• Keywords: Light intensity

This study was carried out to determine the optimal light intensity and temperature for cultivation of Peucedanum japonicum Thunb., a new baby leaf vegetable, improve functional compounds through short-term stress just before harvesting. Plants were cultivated in controlled environment at 25 ± 1°C relative humidity 60 5% 16 days. 3-5 cm high with 1st 2nd true leaves grown different intensities or temperatures. Treatments 50, 100, 250, 500 µmol·m-2·s-1 PPFD 18/14°C, 24/20°C 30/26°C day night temperature. At harvest time vegetables, growth, chlorophyll content, investigated. The optimum growth P. Thunb. 250 12 days, best 24/20°C. Total phenolic content higher under low treatment. When plants treated 3 days (18/14°C 25/20°C) (PPFD 200 500) harvesting, there no difference but total 18/14°C treatments. Free radical activity (DPPH) significant highest free Therefore, after temperature, low-temperature treatment three harvesting effective enhancing contents.