hard to say, but my first thought after reading this was that you maybe did not harden your clone before putting it under a bigger, hotter, light.
Hello RIU, this is my first post as I'm more a lurker and try to rsolve any issues I have myself with research and similar threads but I'm drawing a bit of a blank with my current issue. I have just harvested my first grow in 5 years (only my 3rd ever grow) where I have managed to get 2oz from a Pure Kush plant I had donated to me and I took some cuttings from the flowering plant when it was about 3 weeks in flower. The mother had issues of her own but thats a different story and all was well when the cutting were taken. The cutting was left in a glass of water in the bathroom and 2 1/2 weeks later, there were roots.
This clone was then transplanted into a small container with the same cheap grow bag compost the mother had previously been potted up into. The clone was placed under 24/0 with a flouro tube (18w cool white) and it blossomed. After 3 weeks under the Flouro, it had enough shoots and was starting to grow normal leaves again after going through the deformaty stage, so I figured it was ready to put into flower (9" tall).
This week I repotted up into 3gl buckets, originally with a John Innes no 2 compost with 30% perlite which, after doing quite a bit of research, seems to work for a lot of people. I had concerns about the drainage of this stuff as it compacts but thought the perlite would help with this. It was then placed under my 250w hps about 12-15" away and it got its very first dark period as it was put straight into 12/12 from 24/0 which I've read is fine. My grow room is a closet, 2x2x7' with intake and outflow going into my loft.
The following day, I noticed some of the newer formed leaves on the top starting to get brown tinges to parts of the leaves, I thought it could have either been the roots being compacted or the John Innes was a little too rich for the clone. I also wanted to rule out heat stress so I moved the clone a little further away and monitored the heat a little closer (it did hit 90 on day 1), day 2 was 75-80. Day 3 of flower and the leaf crisping seemed to be spreading up the plant to newer leaves and also to the shoots so I've repotted again, got rid of most of the John Innes and instead have used a mix of 33% cheap grow bag it was originally potted in, 33% perlite, 33% John Innes. I am now on day 3 and am still concerned whether this is a nute burn, deficiancy, heat, stress or other issue so I can rectify it as quickly as I can and the newer leaves are now crisping and dying off from the looks of it.
Coule someone please offer some help and advice on this issue as I've always grown from seed and don't know if this issue is due to the fact its a clone, or something totally different. I have a few pics posted and have more available if required.
Pre Flowering period
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Day 1
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Day 2
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Day 3 (today)
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hard to say, but my first thought after reading this was that you maybe did not harden your clone before putting it under a bigger, hotter, light.
no nonsense makes no sense at all...
I dont really have a light that would fill such a wide gap from going flouro to hps, do you think switching to the new light intensity and heat could have been the issue? If you need more pics, they can be supplied as I really want to resolve this ASAP if possible.
Thanks for the reply as well![]()
That's acute heat stress on top of nute burn.... flush the soil and raise your lights.... i would rather deal with stretch than her dying mate
Jack Herer Grow Journal - http://www.rollitup.org/grow-journal...ml#post7669900
When I first thought it was nute burn after the first transplant in the mainly John innes stuff, I tried to flush and with just 1/2gl, it took over 1/2 hour to drain, which is why I repotted again with the grow bag mix, it now drains a bit faster but along with the soak it got during the original transplant, if I flush again this would be 3 heavy drentchings in 4 days and I fear then over watering it?
mmm good point.... how dry is the soil now?
Jack Herer Grow Journal - http://www.rollitup.org/grow-journal...ml#post7669900
Still very wet, that John innes retains it a little too well, almost sets like sand which is why I removed so much of it and don't think I'll use it on my other up coming clones. I have one I those probe ph/moisture sticks, I know they aren't great and do have a proper digi ph pen as well, but the probe goes off the moisture scale and the ph fluctuates wildly at times, when i did manage to get some run off from the mini flush that failed, it read 6.8 but I had ph'd the water to 6.7 anyway
that holding onto the water is what might be causing your nute burn..... if it's not flushing properly, u may have a build up of salts in parts of your soil.
i would get them out ASAP and into a better substrate
Jack Herer Grow Journal - http://www.rollitup.org/grow-journal...ml#post7669900
No other soil available at the moment, just more innes and that's a no-no for me now, it would also make it 3 transplants in 4 days, talk about stressful, do you think it might just be heat stress as this innes is a proper potting on soil, or maybe even a lack of certain vegging nutes as it was taken from a flowering mother and received nothing in its 3 weeks of post-rooting veg apart from whatever is in the grow bag mix up?
yeah but what's in the mix could be far too harsh for the young plant.
the minimum i would do is get some perlite or something similar in there to increase drainage.
revegging, switch of lights and re-potting all adds to the stress factor like you say, but heavy nuted soil is only going to add to this.
Jack Herer Grow Journal - http://www.rollitup.org/grow-journal...ml#post7669900
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