Gibberellic Acid Without Silver

[justicebzwiegandjlz832]

Gibberellic acid rarely comes up when people discuss how feminized seed is produced, yet it is used commercially next to the silver sprays. It is a natural plant hormone that holds back ethylene when applied to the tops for several days before the flip, and male flowers show up about two weeks later. A short write up at https://queenfeminizedseeds.com points out the main appeal, no silver residue to worry about. The downside is a slower onset, so I can see why breeders on a tight schedule stay with STS.