Everyone in the LED space says the key difference between LED lighting and HPS is that
the light heat is so much less... you can't have the proper photosynthesis without the proper
water evaporation... and that's why they rec'd 80-85 for the lights.
Wow,,,,,,ok, sure,,,whatever........Ah, how about the fact that at temps over 80F the plant
begins to turn it's "energy" use to protecting it's self from the heat? It does this by decreasing it's actual growth rate (not to mention changes to the plant at the cellular level that are actually
using this energy).
At 85F the plant starts a steep bell curve in that direction so then at 90F the plant is just about completely at a "stand still" in actual growth as it is now using
very close to 100% of it's "energy" to keep it cool....
You want to increase evaporation to have "proper" photosynthesis ???
How about you decrease your RH and keep the plant in the happy temp zone??
You'll get the desired effect without decreasing the plant's effective growth rate...
In all actuality.....If you keep your temps at or around 70F and your RH at 50 or below a bit......I don't care what lighting you use.
You do not need to up the heat to make the light work better!!!!!
That is simply due to how plants
work !
If you actually increase the temps for more photosynthesis. You need more Co2 available
AND increase the lighting for any temp increase to
be effective...!!!!
That's plant science!
Doc
*EDIT* In Fact,,,read the link I provided below to the O.P.
