Here’s a trivial one. Ok, so I’ve heard that its thought that IAA can be foudn in human urine. Being an auxin, a super plant growth regulator, i guess thats where the belief of peeing on plants to help them grow (especially lemon trees) stems from. i’m just wondering if anyone knows of solid evidence of this working?

And I know, I know, PGRs mainlly work together and it takes more than one pgr for a single effect, but if only all the known pgrs can be found in in urine, wouldn’t that be fun.