New technique.To make a single cola plant;During 7 week of flowering cut center shaft cola,clone new cutting.your new plant grows single shaft colas.goodluck all Herbologist.
OK heres the deal on that ............been doin' it for years next bud cycle in your room flower one clone at 1" and one at 2" and one at 3" and so on until you figure out how tall yer lil' ladies have to be(when they go to 12/12) to finish at about 18"-20" as a single spike (some times a lil' branch or two at the bottom rarely longer than 4")much taller than that (I have gone to 41") and you will have to use a stake.......18"-20" is the best return on yer" dollar ......works with every kind ever exept (Mn. wild hemp) 18"-20" = 11-20 grams dried in the 80's we ran 9 rooms(9 different addys) 1720 Son agro watts per room 4 plants per sq./ft. harvested 1 Room each week..... it was a beatiful thing It the only comm. set-up I have ever seen where the bud out weighed the leaf 9 to 1