these are the new PIC:Can't see very well but if that is a preflower it appears female. I suspect that is just a new branch developing at the node though so can't say.
27 days old all of them but they got heat stress and almost was dead at 16 days old, and they started to recover just before 7 days.I still can't say for sure. Looks like they need to mature more. How old are they?