Journal
NOTULAE BOTANICAE HORTI AGROBOTANICI CLUJ-NAPOCA
Volume 49, Issue 2, Pages -Publisher
UNIV AGR SCI & VETERINARY MED CLUJ-NAPOCA
DOI: 10.15835/nbha49212314
Keywords
chlorophyll; flavonoid; light-emitting diode; medicinal plants; saponin; non-structural carbohydrate
Categories
Funding
- Science and Technology Projects of Guizhou Province [[2018] 1045, [2017] 5788, [2018] 5781]
- National Natural Science Foundation of China [41861017, 31771695]
- Construction Program of Biology First-class Discipline in Guizhou [GNYL [2017] 009]
- Fundamental Research Funds for the Central Universities (Program for ecology research group) [0901-110109]
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The study found that Ficus hirta and Alpinia oxyphylla seedlings responded differently to different lighting spectra. F. hirta was negatively impacted by blue light, while A. oxyphylla thrived under red light conditions for the production of flavonoids and saponins.
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.
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