Ca++
Well-known member
You may get to the same total water usage, but it's stratospheric gradient won't be the same. Importantly, if the tops are not having to sweat to keep cool, then they are not seeing as much calcium delivered to them. As calcium is just kinda washed along.
For the middle of the plant, warming the room, may mean it see's more calcium delivered.
A lot depends on where you start from to begin with. Some of us have 28c just coming in the door, so have never suffered from cold issues.
There is a case for cool temps slowing transpiration, in a manner more Ca actually makes worse. It's like thickening the blood. I don't think it's seen in cannabis, but then I don't have a lot of shit grow experience (shh, I don't want to hear it) lol
