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• Spaninks et al. (2020) conducted a comparative analysis of how red and blue light regulate early plant development in Arabidopsis thaliana and Solanum lycopersicum.
• Red and blue light regulate plant growth and development by influencing root, stem, leaf, flower, and fruit growth, seed germination, water and mineral absorption, photosynthetic pigments, stomatal formation, and sugar metabolism, as reported by Park and Jeong (2023), Bueno and Vendrame (2024), Vatistas et al. (2024), and Wang et al. (2024b).
• Wu et al. (2024) studied the effect of red, blue, and amber light-emitting diodes (LEDs) on photosynthesis and plant growth parameters.
• Trivellini et al. (2023) examined the role of blue and red light in orchestrating secondary metabolite production, nutrient transport, and overall plant quality.
• Supplemental light, specifically blue, red, and blue/red light, mitigates the negative effects of salinity and alkalinity stress on plant photosynthetic efficiency and enhances plant resilience.
• Plants primarily absorb red and blue light to serve as the basic energy source for photosynthesis.
• In Mentha pulegium, red light increases internode length while decreasing leaf length, leaf area, and carotenoids; conversely, blue light increases leaf area and root length, according to Roosta et al. (2023).
• Amaranth plants grown under red or blue light show accumulation of sodium (Na) and potassium (K) minerals.
• Zhao et al. (2024b) investigated photomorphogenesis and photosynthetic trait changes in melon seedlings in response to red and blue light.
• Wang et al. (2024b) studied the effects of red and blue light on the growth, photosynthesis, and subsequent growth under fluctuating light conditions in cucumber seedlings.
• In grape skins, where fructose, glucose, and sucrose are the primary sugars, blue light treatment results in the highest total sugar content, followed by red light treatment, according to Kondo et al. (2014).
• Red light accelerates stem elongation, while blue light facilitates biomass accumulation as well as leaf and root growth; however, a combination of red and blue light increases plant height, stem thickness, total leaf area, stomatal aperture, crown width, and total root length, according to Si et al. (2024) and Zhao et al. (2024b).
• In saffron, blue light increases the production of high-quality daughter bulbs and alters biomass allocation, while high red light stimulates the production of lateral buds and induces vegetative leaf production; additionally, an increased blue/red light ratio induces the production of heavier flower bulbs, as found by Moradi et al. (2021).
• In current plant research, red and blue light are the most frequently utilized wavelength regions for studying the effects of light quality on plant growth.
• In tobacco plants, blue light increases total soluble sugar and reducing sugar content compared to white light, whereas red and green light decrease reducing sugar content, according to Yang et al. (2017).