seed quality & height

whatup, i jus wanted a couple things clarified:

-Can u grow good bud from seeds from a shitty bag of weed? in other words, if the weed wasnt that good, can u grow the weed "better"?

-Is there a direct relationship btween plant height and yield size? in other words, is it the taller the plant the more bud, or are there other factors?

Yes, the weed may turn out much better if you grow from the seeds. That is depending on how badly the weed was grown in the first place.

And there are 2 different plant types. Sativa is a tall skinny plant and Indica is a shorter more bushy plant. From these 2 types are many strains and hybrids.

However, there is alot more to yield than just the plant and strain.