Effects of artificial light sources on accumulation of phytochemical contents in hydroponic lettuce

ABSTRACT

Lettuce is grown in different parts of the world and it is beneficial for health. Light condition is one of the most important environmental factor in regulating growth, development, and phytochemical accumulation in lettuce, particularly when lettuce is produced in a hydroponic system. Due to advances in technologies, artificial light sources have become increasingly capable of providing appropriate quality, intensity, and photoperiod of light in hydroponic lettuce production. This review highlights the progress of current research on the effects of artificial light regulation on growth and phytochemical accumulation in lettuce produced in hydroponic systems.

KEYWORDS:

• Anthocyanins
• flavonoids
• nitrate reduction
• phenolic compounds
• vitamin C

Acknowledgments

The authors would like to thank the Research and Development Office (RDO), Prince of Songkla University, Assoc. Prof. Dr. Seppo Karrila and Dr. Nang Myint Phyu Sin Htwe for providing general help in manuscript preparation.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

This work was supported by Faculty of Science and Technology, Prince of Songkla University, Pattani Campus under grant number SAT-RF/RG6003.