Hmm, I imagine that math has its place in estimating male to female results, but the environmental factors which are able to be reasonably controled especially in the winter months are a better determiner on sex results IMO. The RNA which is a plant DNA determines the sex in the plant, this takes place in the first 10 to 21 days, meaning, the sex is determined already durring that period. One simple way to promote more female plants is to keep the temps in the low to mid 60's. Higher temps will produce more males. Don't get freaky with nutes, or tweek out the seedling with a bunch of ruff handling and have nice gentle air exchange and you can increase your chances.
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BlueBear Reviewed by BlueBear on . decrease the chance of having all males using math Let's say you've got a small grow space and can only flower two plants. So you plant 3 seedlings instead of 2 hoping to increase your chances of having 2 females. Common sense, right? But by how much exactly did you increase your chances? If you only have 2 seedlings, assuming you don't have feminized seeds and ignoring environmental factors which might affect sex, you've only got a 1-in-4 chance (25%) that both are female. But there's also a 1-in-4 chance that both are males. There's a Rating: 5