"Again the reason for this is the inhibitory roles of other wavelengths of light"

but is any light inhibitory? Whilst the root development may be better, are we not lacking something we dont know about? I know this appear all theory but i am trying to hammer out the holes in my head so in five/six weeks when i build my next room it is as good a I can do.

If there was all the light spectrum and extra blue, surely the plant would harness all the blue it needs as well as the other light it needs for cell development, taste development and mapping out the plants life cycle. I think the complete spectrum would add more building blocks to what is a new life?

If plants just lived under blue and red light they would look black to us because obviously they are not reflecting the green light, but that green light although very little is used, is used and that is through evolution. Plants used to be purple/red/orange thousands of years back because they did not use choropyl to photosynthesise. I think it was retinol although I may be mistaken.

What we are growing with LED is an articifial plant, even more artificial than traditional lighting methods and that can only be a bad thing. We are changing the plants genetic makeup and perhaps changing things for the worse. By altering plant cells and changing the way they use light we perhaps embrace new diseases, carceogenic properties and other underlying problems. In my eyes the same can be said for Hydroponics. Its an artifial way of harnessing life and evidence in other fields like mono cultures in crops shows this is a very bad thing.

If you look at Mr Nices grow rooms, a lot of them have open roofs and brick walls.