No problem Trala.
Honestly I have no idea what the breeders mean by flowering time, and if someone could explain it Im listening.
And being really specific about this heres what confuses me. Im old school, when they were ready, they were ready (at least as far as Hps goes). No microscopes and trichomes, number of flowering days, dark periods etc. When the pistils went brown you knew you were close.
But Ive seen them throw out white pistils, not sync up, and stall on stacking. Growing is probably better now, but I still dont understand what 55-60 days means. From flip? From pistils? What we do is unnatural, and my guess is some genetics are more stable than others.
Genetics now are crosses of crosses of crosses. And because of that phenos have to be more prevalent. Meaning across a set of 100 seeds surely the window of flowering varies by more than 5 days. It has to, Sativas will run 77 sometimes and Indicas have always been shorter. With each cross and resultant pheno I would think youd get more variation, not less.
My guess is that the breeders put what is their best guess. So I can only respond using my best guess.