Light-emitting diode spectra modify nutritional status, physiological response, and secondary metabolites in Ficus hirta and Alpinia oxyphylla

• Main Authors: Changwei ZHOU, Chongfei SHANG, Feiyu CHEN, Junzhou BAO, Lifei YU, Peng GUO
• Format: Article
• Language: English
• Published: AcademicPres 2021-06-01
• Series: Notulae Botanicae Horti Agrobotanici Cluj-Napoca
• Subjects: chlorophyll; flavonoid; light-emitting diode; medicinal plants; saponin; non-structural carbohydrate
• Online Access: https://www.notulaebotanicae.ro/index.php/nbha/article/view/12314

Lighting spectrum is one of the key factors that determine biomass production and secondary-metabolism accumulation in medicinal plants under artificial cultivation conditions. Ficus hirta and Alpinia oxyphylla seedlings were cultured with blue (10% red, 10% green, 70% blue), green (20% red, 10% green, 30% blue), and red-enriched (30% red, 10% green, 20% blue) lights in a wide bandwidth of 400-700 nm. F. hirta seedlings had lower diameter, fine root length, leaf area, biomass, shoot nutrient (N) and phosphorus concentrations in the blue-light spectrum compared to the red- and green-light spectra. In contrast, A. oxyphylla seedlings showed significantly higher concentrations of foliar flavonoids and saponins in red-light spectrum with rare responses in N, chlorophyll, soluble sugars, and starch concentrations. F. hirta is easily and negatively impacted by blue-light spectrum but A. oxyphylla is suitably used to produce flavonoid and saponins in red-light spectrum across a wide bandwidth.