New grower problems! Please help!!!!

[mojo68]

I am growing a Jack Herer auto and so far I had no major problems! (I spent many hours reading the forums guys and thank all for your useful inputs!)
I have a 400 watts HPS and I am using soil. The lady is now in day 54 and she is 75cm tall. She is in Advanced Nutrients (micro and bloom now for a week).
The last 3-4 days I noticed a couple of the big (fan?) leaves to start becoming yellow although the vanes are still green. (please see the pics)
Do you have any ideas on what the problem might be?
I also noticed that in the last week my PH is above 7. Is this the reason?

Thank you in advance for your support!

 

[vapeo]

I have this legendary strain queued up for my next grow. Who is the breeder of yours?

Your lady looks fine to me, but I'm no expert at diagnosing plants. At day 54, its possible that end of life yellowing is starting to occur which is completely normal. Typically around 3 weeks left to harvest once it starts.

:stylez rasta smoke:

 

[CGR]

Welcome to AFN Mojo68 :smokebuds:are those the best pic you have?

 

[mojo68]

Royal Queen Seeds!

Tomorrow I will try to take some better pictures as now it is dark here. But you know how it is with he girls! When you see something you do not like you panic!


I hope that they will survive for one more night!

 

[vapeo]

I don't want to scare or discourage you but you might check out this thread and possibly join the discussion and share your experience with it.

https://www.autoflower.org/f2/avoid-royal-queen-auto-jack-herer-26702.html

Fairly certain the guy was pleased with the effects of the final product though. This thread might also give you some insight on what to expect for the remainder of your grow.

 

[mojo68]

Well, here I am again with some new (and hopefully better) pictures.

Vapeo thanks for your input but looking at the pictures I do not think that I have a similar problem with the thread you linked me.
I saw somewhere similar pictures of a plant with molybdenum deficiency but it says that this happens because of low PH (below 5.5), and I never had such a low PH

I think that the more characteristic pictures are 2, 4 and 5 as the others are too yellow from the MH bulb.
.

 

[mojo68]

Welcome to AFN Mojo68 :smokebuds:are those the best pic you have?

here are some more pics! Thanks again for your help!