What could be happening to this plant? Could it be root rot or overwatering ? its in middle flower, with good ph and organic nutrients from top crop, 26°C and 200W led cob. This are the older leafs, but the rest of the plant seems fine. this week I increased the PK levels.
Looks like its just happening to the lower leaves. Which being on the better half of flowering is normal. Especially if you don't do any defoliation then the lower older leaves usually die off first. But I also noticed you have some tips that are burnt on upper leaves which is typically a sign of to much nutes. I would try cutting feeding back by half and see how she responds so you can pinpoint the issue.
Mistakes I could have made that showed early nutrient deficiencies: 1) Bad soil aireation, I used a bad and compact compost. 2) Overwatering due to the bad soil 3) Root Rot due to overwatering (will check after harvest) 4) The fist 5 weeks I watered the plant with ventilated tap water, but some chlorine may have collected in the pot.
@Troy_Farms thank you for your help! its weird that the tips had burned, I used the minimum dose of organic nutrients, but I will start lowerin them. I hope she gets well to the harvest day. :)
@The8thChevron Thanks for your help! It´s spreading in the older leaves, my consern is if the plant will get to the final of the flowering stage, or if she will start eating herself.
If it's just that one leaf, then ignore it. Sounds wrong, I know, but plants have issues the same way as people and no genes are perfect. If it starts to spread, look at pH and EC as potential causes for the problem.