Here is an interesting article that may be of some aid in TC and in normal grow set-ups. Alternatively can be used as a treatment for fungal outbreaks. Plants should have higher tolerance for near-infrared than the mammalian cells used in the study.
http://www.ncbi.nlm.nih.gov/pubmed/...+al.+Photochem+Photobiol.+2009;85(6):1364-137
http://www.ncbi.nlm.nih.gov/pubmed/...+al.+Photochem+Photobiol.+2009;85(6):1364-137