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Updated: Jul 10, 2026
11:37
RGB and Spectral Root Imaging for Plant Phenotyping and Physiological Research: Experimental Setup and Imaging Protocols
Published on: August 8, 2017
Photoregulation and substrate synergy mediated biofortification of radish (Raphanus sativus L.) microgreens: A dual
Priyanka Rana1, Priyanka Thakur2, Satish Kumar1
1Department of Food Science & Technology, Dr. Y. S. Parmar University of Horticulture and Forestry, Nauni, Solan, HP 173230, India.
Summary
Hydroponic radish microgreens grown under blue light show enhanced nutritional value and antioxidant activity. Blue light optimizes phytochemicals and minerals, establishing a sustainable method for nutrient-dense crop production.
Area of Science:
- Controlled Environment Agriculture (CEA)
- Plant Physiology
- Nutritional Biochemistry
Background:
- Sustainable agriculture practices are crucial for efficient food production.
- Hydroponics and specific light spectra offer potential for enhanced crop quality.
- Radish microgreens are a valuable source of bioactive compounds.
Purpose of the Study:
- To investigate the impact of hydroponics and monochromatic light on radish microgreens.
- To determine optimal light conditions for enhancing phytochemical and antioxidant properties.
- To establish harvest maturity for nutritionally enhanced microgreen production.
Main Methods:
- Cultivation of radish microgreens using hydroponics and soilless media.
- Exposure to different durations of monochromatic light (red, blue, green).
- Analysis of phytochemicals, biochemicals, antioxidant activity, and mineral content using GC-MS and PCA.
Main Results:
- Blue light significantly increased total phenolic content, flavonoids, anthocyanins, glucosinolates, ascorbic acid, and chlorophylls up to the 9th day.
- Hydroponic culture under blue light yielded the highest antioxidant activity and glucosinolate content at 9 days, defining harvest maturity.
- GC-MS revealed major bioactives like hexadecane and eicosane, with significant α-amylase inhibition, fiber, and protein content. Mineral profiling confirmed substantial macro and micro-nutrient levels.
Conclusions:
- Hydroponic cultivation combined with blue light spectrum is a highly efficient and sustainable approach for producing nutritionally enhanced radish microgreens.
- The 9th day represents optimal harvest maturity for radish microgreens under these conditions, maximizing functional properties.
- This CEA strategy offers a short growth cycle for superior, nutrient-dense microgreen production.
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