New Grower week 7 of northern lights auto growing in greenhouse and under lights

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3 plants that look to be in great shape, but I am asking if anyone can estimate yield per plant if plants are treated well with mostly natural light in greenhouse. I have attached some pics for anyone with advice or opininion...thanks
 

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Thanks for the reply! I am so new at this...i forgot to add that I have been giving them 3 hours of additional CFL that is about 7500 lumens when the sun goes down. I started them and have kept them on 12-13 hours light. I have about 5 weeks left. Should I go to 18/6 to increase my yield or will that disrupt the cycle too much and actually diminish my yield? Thanks a bunch for the help...i will pay it forward in the future
 
Hi
if its a Autoflower you need 18/6 all the way through if possible. any less and yield will be less. but if you can only give it 13/14 hrs of light then you'll have to settle for the yield loss.

normal photoperiod seed needs 12/12
:)
 
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