Effect of Duration of LED Lighting on Growth, Photosynthesis and Respiration in Lettuce.

ABSTRACT: Parameters of illumination including the spectra, intensity, and photoperiod play an important role in the cultivation of plants under greenhouse conditions, especially for vegetables such as lettuce. We previously showed that illumination by a combination of red, blue, and white LEDs with a high red light intensity, was optimal for lettuce cultivation; however, the effect of the photoperiod on lettuce cultivation was not investigated. In the current work, we investigated the influence of photoperiod on production (total biomass and dry weight) and parameters of photosynthesis, respiration rate, and relative chlorophyll content in lettuce plants. A 16 h (light):8 h (dark) illumination regime was used as the control. In this work, we investigated the effect of photoperiod on total biomass a

SUBMITTER: Yudina L 

PROVIDER: S-EPMC9921278 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature