yes. underwatering will also do it. the great thing about beans is the ease. you keep it simple and basic and will have great results. also, i have grown many plants from seed but never bought seeds. but then again the pot community is pretty big in my neck of the woods. so if i were to do it, and i am a cheap bastard so it would only be for a special strain like yumbolt, i would do the paper towel/bag method, put them in ocean forest, take clones when big, sex clones, pick females, save males for pollen, finish clones to determine different pheno (if not a stable strain) pick final mother(s), take uniform clones, root, flower, harvest, smoke! it seems like alot of work but you always no what to expect, not like growing from seed. taking clones, rooting and flowering a 8 week strain takes 10 weeks max. starting from seed takes alot longer. having a mother in constant veg will take all the guess work out of it. and if you dont care the pheno or if it is a stable strain, then that makes things even quicker and easier