I have no science or validation to back this up but I’m convinced that too much LED light in early veg brings out more males. I even went 0/11 once and a couple of heavy male runs before I put the right light in the space (basically the difference between 100 watts per 4 square feet vs 65, 4k spectrum from HLG for both) Once I put the new light in my ratios went back to normal and nothing else was different. Just my $.02 but thought I’d share as it was super frustrating.
I will be mindful of that when I start flowering the next batch of Sativa regs. Thanks.
That may be a while, I think this one has 8 weeks in, 7 to go.