Is STS in a 12/12 from seed possible?

Hello everybody

Please is it possible to reverse a plant in a 12/12 from seed ?

If yes, I start STS day 1 ?

Thank you very much

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It will be possible as photoperiod seeds usually don’t flower until their 3rd-5th week after germination. I would start spraying the ones you want to reverse as soon as you see preflowers. You may have to run the pollinated plants a few weeks longer than usual to get the seeds fully ripened. I usually stagger the start of flowering by 2 weeks so that the plants getting reversed start the make pollen around day 10-20 of flower for the non reversed plants.

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I run 12/12 from seedling, not exactly from pop. Usually 10-14 day veg(works a lot better than straight from seed). And the plants usually rock out a good few weeks before sexing. I get plants all the time that are a good 2 feet before presex. But youll probably want to stagger a couple weeks apart to make sure the donor male is kicking plenty of pollen. Heres a 12/12 from seedling plant in a 4 in pot right at showing presex for reference.

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Thank you very much for the help @ABushOfKush @BackyardBoogie420

All the best and big thank you

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