Can Light Therapy Products Help Restore Plant Health?

Question

Have light therapy (also referred to as “photobiomodulation”) products ever been tested to see if they can restore damaged or overly sun-exposed plants to healthy growth? I am specifically interested in saving a young potted cactus plant that was left out too long in 100+ degree sun and suffered damage. I know these light products help people and animals in various applications, and wondered if they could also help reset a plant’s wellbeing. Is there any research that suggests it can?

Answer 1

I am not finding any research that shows light therapy is beneficial to plants. The article below says its use has not been studied much in plants.

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6286699/

These articles may help:

https://plantdiseasehandbook.tamu.edu/landscaping/flowers/cacti-and-succulents/

https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az1399.pdf