When closely examining each seed before planting, you may select for sex by looking at the stem end. If there is a deep pit or dimple, then it is likely female. If there is a flat area, no dimple, or tiny pit, then probably male.
6/30 I planted my afghani strain which is usually 50/50 male/female, and selecting for deep dimples – Yep – got ALL LADIES!!!
I recently applied the same strategy to my Jesus OG seeds, and am waiting on results now. They are coming into their 2nd week of flower, and I should know soon. I’ll post a comment when I find out concretely.
If I get a strong looking male, I intend to cross it with one of the feminized Jorge’s Diamonds = a New J2 strain. 😀