More then that is possible, I know a guy who gets 3.5 consistently under double Ender's and he grows nothing but OG strains .3+ per is most certainly possible, even under 8 ft ceilings. with de, at least
I seen a guy get 4 lbs off one plant in a 100 gallon drain to waste 1 1000 watt HPS(toasty) I can do over 4 lbs on a lamp , so could the guy who got the 4 lbs from one plant ,
I thought he was crazy to fuck with the one plant training it for so long , he didnt have a plant count limit so he was justt doing it to prove a point , not because he had to. He could have thrown a dozen plants under the same light with no veg and get the same or better results. To get to the numbers he is trying four he has 60 gallons of growing media , a general rule of thumb , outdoors is 100 gallons of dirt will produce around 4 lbs of product ,3 months or so of veg, some plants can do more, some less , usually in hydro you can produce about the same weight in dirt with half the growing material, in my opinion , and i am not saying it cant be done , he has more then enough light to produce his desired outcome , what he lacks is root mass and and the plants are to thick to alow deeper penetration into the plants for the bud to develop deep enough into the plant to develop the weight he is looking to get. Each ten gallon container he has has to produce over 3.5 lbs per plant in ten gallons of material , can it be done ? Sure , but it takes a lot more than ten gallons of root space, in actuallity with the lights he has on these plants with enough root space he could be getting over double his production , just not in that amount of root area. Just my opinion. This is not knocking anything being done evertthing this man is doing takes a pile of hard work , investment to accomplish , he is obviously a very good grower that works hard at it.