how much can I expect to yield from this plant?

Hey heres some pics of my plant it is 20" tall and has been flowering for 2 or 3 weeks still has like 6 weeks to go so what kind of yield can I expect it to give me?

there is alot of variable, what kinda lights? its looking good so far. Just don't harvest till its ready and you will be happy.

yield is way to variable to give a straight answer. Best way to tell is to is wait and see. but whatever, that plant is gonna give you about 1.1 oz.

it has a 1000w hps, I am using good amount of nutrients but it just showed first signs of fert burn so I am backing away for the next watering.