Sequential RGB light optimization across developmental stages enhances lettuce growth through carry-over effects.

ABSTRACT: Light is a critical factor regulating plant development and productivity under controlled environment conditions. However, the light conditions are often kept static throughout the cultivation period, potentially overlooking plants' dynamic responses to changing environmental stimuli over time. This study proposes a stage-specific optimization strategy to maximize lettuce growth, based primarily on shoot fresh weight by adjusting red:green:blue (R:G:B) light ratio at different growth stages. After transplanting 2-week-old seedlings, their growth period was divided into an early stage (ES, the first 2 weeks) and a late stage (LS, after 2 weeks). To account for potential carry-over effects, the ES optimization was designed to evaluate how early-stage light conditions influence final growth p

SUBMITTER: Lim E 

PROVIDER: S-EPMC12495648 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature