News

Storing leafy greens in the dark rapidly leads to pigment degradation and reduced antioxidant value. Researchers evaluated the impact of narrow-band green light on the biochemical composition of lettuce in cold storage at 5 °C. The experiment showed that low-intensity light peaking at 500 and 530 nm activates defense mechanisms, slows down chlorophyll a degradation, and stimulates flavonoid and anthocyanin accumulation. We examine lighting parameters, physiological crop responses, and operational constraints.

A study by the Perm Research Institute of Agriculture examined the effect of the red to far-red light ratio (R/FR) on in vitro meristem potato plants of cultivars Grand and Julia. Lowering R/FR to 0.5 using 730 nm LEDs increased leaf area by 54.9% in cv. Grand and 32% in cv. Julia over 28 days of cultivation. We analyze morphogenesis mechanisms, tissue dry matter reduction risks, and recommendations for chief agronomists on implementing controlled spectra in biotech labs.

Gavita International and HAS Green Academy have launched a study investigating the effects of LED light spectra on flower initiation and yield in everbearing strawberries. The first results are expected in early 2027. We analyze why continuous flower induction remains a complex challenge in berry greenhouses, how to approach LED fixture selection before final data is published, and which microclimate and lighting control parameters agronomists and greenhouse engineers should consider.

Switching to winter LED supplemental lighting in tomatoes causes persistent green blotches on fruit due to reduced transpiration and nutrient transport deficits. Research by HortiTech demonstrated that direct kilowatt-hour energy savings without adjusting greenhouse thermal balance cause hidden quality defects, especially in hybrids weighing around 150 grams. We analyze the physiological mechanism behind this disorder and trial results of active ventilation systems designed to restore plant evaporation.