of course your plants will produce if they have the room the light and the right temps!! If i had your setup i would deffo get over a couple of oz per plant if i was running only one in there and the seed is from good stock . I get 1 1/2 with two 85 watt cfl's !! I have been growing for years and one thing i have learnt is less is always more with low wattage lights the more plants you put in the less you will get a good LST single or two plants from a good supplier will pretty much supply ya with an oz per plant 28g dry a 100 watt hps will !! It all comes down to the stock high yield indica plants will deffo give ya more I always get over 20g with my puny cfl setup!!