no expert, only done one grow myself, but could be a lots of things. it sort of normal for some leave to go yellow as budding progresses. you should give more detail. with large pictures of the leaves. are the plants showing any other problems. what are you feeding you plants and how often. are you over/under watering, whats you temps/airflow like. but looks pretty nice to me
I'm sorry I'm not able to help, too. But isn't your tent a little bit too small? And the light is much too close to the plant.
Just my opinion.
Day 28 can someone tell me wtf is wrong???Should the leaves be dying out like that the new growth is nice and green well alot better then it was I was trying to take it easy on the N cuz I burned then at 1st and it gave me leaf curl should I now up the n some more?still have another 5 6 weeks left....
alright....Ive had this same proplem before...
see the very base of the plant stem..if u see any faint white?
a type of fungus of downey mildew.
its systemic...and u cant stop it in flower..see it loves foiler feeding and develops from spores..its called..Pseudoperonospora cubensis the dead leaf's will decay...and the fugi develops into tiny yellow mushrooms.
I use daconi 4 weeks before flowering.
see this downey mildew loves sativa dom cannabis..it kills hemp as well..all the coops in socal seem to spread this fungi...but its also in the air.
close to the ocean..cloudy wet temps this downey thrives.