Researchers tested different LED light colors and intensities to grow potatoes indoors and found one combination matched field-level potato yields while also boosting the production of seed potatoes (minitubers) profitably. They also identified the genes responsible for producing a natural toxin in potato leaves under bright light.
1
The LA-H LED treatment (high-intensity, specific red-blue spectrum) produced potato yields indoors comparable to field-grown potatoes across yield, biomass, and leaf photosynthesis measures.
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The ratio of red to blue light was the single most important factor shaping plant shape and physiology across all light treatments tested.
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High light intensity triggered elevated α-solanine (a natural potato toxin) in leaves, with two specific genes — GAME4 and GAME12 — identified as the main drivers of its production.
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