// Definition
The development of feminized cannabis seeds using chemical reversal techniques, primarily STS (silver thiosulfate), to produce all-female seed batches. First feminized seeds hit the market in the 1990s, revolutionizing commercial cannabis production by eliminating male plants.
// From the Episode
Sam explained the evolution from regular seeds to feminized production using STS. First feminized seeds on the market were not nearly as reliable as modern versions. Selfing (S1 generation) discussed as a severe inbreeding strategy that reveals recessive traits carried in heterozygous form. S1s of popular cultivars showed variable quality. F1 crosses described as sufficient for commercial purposes. Selfing F1 is better because it reveals hidden alleles. Dutch seed banks of the era were producing seeds without the sophisticated feminization techniques available later.
// Source
Ep. 190 HC 5.0 Ep 10 →