ArticleBMC plant biology2026
Enhancing physiological performance and quality traits of lettuce (Lactuca sativa L. cv. 'Batavia') through red-blue light ratio and γ-aminobutyric acid interplay.
Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Modern approaches and future prospects in lettuce breeding for controlled environment agriculture.Frontiers in plant science · 2026Review
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe integration of tailored light spectra and γ-aminobutyric acid (GABA) supplementation represents a promising strategy for improving crop yield in controlled environment agriculture (CEA). This study investigated the combined effects of Red (R):Blue (B) light ratios (RB: 90:10, 80:20, and 70:30) and 25 μmol L−1 GABA supplementation (G25) compared with the control (G0) on growth, chlorophyll fluorescence, and quality of Lactuca sativa L. cv. Batavia in a vertical farming system.
resultsPlant morphology was modulated by light spectrum and GABA. The RB:80:20 + G25 treatment significantly increased leaf anthocyanin content by 31.3%, leaf area by 15.4%, total fresh weight by 20%, and soluble carbohydrate content by 26.3% compared to the control plants. In contrast, the RB:70:30 treatment directed plant growth toward the roots. However, GABA application increased biomass reallocation toward the shoots by 60%. GABA application reduced the excess excitation energy (DI0/RC) by 11.76%, highlighting its role in improving light use efficiency. The highest Fj and F0 values were recorded in RB:90:10 + G25 and RB:80:20 + G25 treatments, respectively. This indicates the greater absorption range of R light by leaf chlorophylls, its impact on plant photosynthesis and the importance of GABA in modulating light transmission in the O-J phase. Sensory evaluation confirmed that RB:80:20 + G25 scored the highest for visual quality and taste.
conclusionsThese findings suggest that precise combinations of R:B light ratios and GABA supplementation can simultaneously enhance and optimize both physiological performance and consumer-oriented quality traits in lettuce. Future research should investigate the molecular mechanisms underlying these interactions and their potential application to other leafy crops in CEA systems.
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