It is day 44 what yield can i expect

This question has a LOT of variables, from grow style, nutrients, lights, environment, genetics, ect. But to get in the ballpark guesstimate, you can expect 1 gram per watt of light if using HPS. You can expect 2 grams per watt if using LED. This is for total yield and assuming that the area under the light is completely filled in. Hope this helps. Another way is to see what the breeder of the seeds can tell you. Some breeders will give an estimate for what each plant can yield.