Far-Red Light Effects on Lettuce Growth and Morphology in Indoor Production Are Cultivar Specific.

ABSTRACT: Understanding crop responses to the light spectrum is critical for optimal indoor production. Far-red light is of particular interest, because it can accelerate growth through both physiological and morphological mechanisms. However, the optimal amount of supplemental far-red light for indoor lettuce production is yet to be quantified. Lettuce 'Cherokee', 'Green SaladBowl', and 'Little Gem' were grown under 204 µmol·m^-2·s^-1 warm-white light-emitting diodes (LEDs) with supplemental far-red ranging from 5.3 to 75.9 µmol·m^-2·s^-1. Supplemental far-red light increased canopy light interception 5 days after the start of far-red light treatment (DAT) for 'Green SaladBowl' and 'Little Gem' and 7 DAT for 'Cherokee'. The increase in light interception was

SUBMITTER: Liu J 

PROVIDER: S-EPMC9611250 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature