High Green Light Substitution Reduces Tipburn Incidence in Romaine Lettuce Grown in a Plant Factory with Artificial Lighting.

ABSTRACT: Optimizing lighting in plant factory with artificial lighting (PFAL) is essential for balancing lettuce growth and quality. Rapid plant growth in PFAL often induces physiological disorders, especially tipburn, which is associated with calcium deficiency in newly emerging leaves. This study aimed to evaluate the effects of different proportions of green light substitutions on tipburn incidence and the growth of romaine lettuce cultivated in a PFAL. Plants were grown under different proportions of green light at a total light intensity of 200 µmol m^-2 s^-1, consisting of 40% (G40), 60% (G60), 80% (G80), and 100% (G100) green light. The results showed that increasing the proportion of green light significantly reduced tipburn incidence from 49% to 25%, while shoot fresh w

SUBMITTER: Ruangsangaram T 

PROVIDER: S-EPMC12845428 | biostudies-literature | 2026 Jan

REPOSITORIES: biostudies-literature