horse,
ive had a few, have one now, will take a pic for you....that have done that, didnt seem to hurt the yield....just ugly....didnt affect the buds....they were fine....it seems to happen for me on the mostly sativa and starts when they are younger, but really shows up when in bud....like i said dont know what causes it, have cked all the usual suspects, usually i cut the ferts down to a bare minimum and it seems to help, so i think it is fert related....but i dont know....usually fert, every other day, but on those i wait sometimes...every two days with much milder dose....they finish, no potency loss or wt. loss, just some real ugly crap....wonder if its a genetic trait? L
I think its the ferts affecting the sativa in the plant.....just my theory....L