COCO COIR Frankie Goes To Hollywood

[Bluey]

I appear to have an auto topped mutant

No new apial growth on left. It stopped. It also only has 2 leaves on the last node at last growth instead of 3 like the rest.One on right normal and same as other autos. EC now 0.8 with light around 350 PPFD Temp 25⁰C 70%RH

 

[Bluey]

Below the 4 autos with one mutated. Likely stress. The other 3 had identical conditions and are doing well.

Photo OZ below. Doing fine.

Leaf color looks much lighter green in the photos than what they are. I think it's the grow light spectrum making them look lighter in color in the pics than what they are.. they are healthy and doing well.

The two photo WW x seedlings are not doing well. One is losing pigment on the edges of first leaf and stopped growing the other looks fine but is slow, 2nd leaf very slowly appearing. The only thing this could be is either a problem with the way I did the H²O² germination, very unlikely, or a bit much light in the first few days very likely. I'm going to give them there 1st nute mix shortly of around 0 2 pH 5.9. They are still under ventilated domes.



I planted another OZ x photo this morning to replace the one that stopped growing a week ago.

Lessons for me below.

I have made a few changes since my last grow which hasn't worked great for me.

H²O² germination. This seemed to go really well.

More light during sprout. Last grow I was in the 150-200 PPFD range and no issue. This grow 250-300 PPFD. Mistake number 1. It not only stressed them but I think it killed one.

​​​​​​I maintained temps at 24/25⁰C whilst sprouting as I was still germinating. This did not work well for the sprouting plants but it worked great for germinating. Last grow 21⁰C to sprout and slowly raised over first couple of weeks. That worked well.

Nutes I maintained the same time schedule and marginally stronger. Big mistake. All I can say is the other changes slowed root development so I should have pushed out the nute schedule and maybe reduced the nute strength. By the time I realised this it was too late...that's the problem with sprouting seedlings....when you see a problem it's likely too late. This is the stage I mentally struggle with most and I made it worse by making changes in the hope I could get a great start from the autos I have never grown before.

I also didn't plant the popped seeds as deep. Another mistake that again slowed root development and then adding nutes as normal was too early relative to root growth.

I was stoned more often the start of this grow than I was the previous grow. I forget how this effected things.


.EDIT: I also added perlite to the coco. Coco/perlite 50/50 in the smaller auto grow pots and a bout 70/30 in the larger photo grow pots.

Oh. I forgot to mention. The last two grows I started under a few hi-bay and flood lights with about 150w of violet light, not these grow lights.

 

[Bluey]

I've really had trouble with this grow losing seedlings. That's a first for me.

It may be related to the H²0² germination. I dont know. At a loss. I'm doing all as I've done 2 previous grows and still looks like I'm going to lose another 3. Frustrating!

 

[Franklin]

I had the same problem with my current grow, but I don't think it was due to my seeds because it happened to seeds other people gave me too (even more). My issue was too high of humidity and warmth in living soil led to damping off. Basically all the good fungi and bacteria in the soil would attack my seeds when they were young. In retrospect I should have used a bit of h2o2 in the soil. Describe how yours are dying. Is it damping off?

 

[Bluey]

OZ x photoperiod above. 12 hrs H²O² then paper towel for 2 days. Popped nicely and 1" long reticle then transferred to coco and buried so seed head ½ an inch below top of coco with dome over, 100% RH. Watered in with a bit of rain water and broke through 2 days later under dome. 160 PPFD and a bit more rain water.
This hasn't moved in 3 days now. Giving 0.2 EC via syringe last watering, maybe 20ml. Coco damp from earlier wash. Dome atill on. 100% RH. Just stopped. 22⁰C day 19⁰C night 18/6 lights.

2 in coco. Top dead. Bottom Red CBD x auto. Very slow to pop then slow to break through. No movement now 4 days.

WW x photo 2 weeks old. As good as dead

 

[Bluey]

And then these doing great

 

[Bluey]

And these doing shit. Note. There's a fan in the room and all seedlings under domes and lids removed from domes once rooted but I really don't think they are rooting much at all.
.

And mutant auto below

 

[Franklin]

I might guess the humidity is too high without airflow under those domes and you're attracting mold. You said the last grow has lots of bud rot? Probably tons of spores in your tent? Maybe try taking the domes off, spraying with a solution of 3% h2o2 and water (6 to 1), good airflow, and leave it be. Water half ass much as you were. Maybe.

 

[Bluey]

It may be the coco. It may need sterilising although I haven't heard of that before

 

[Bluey]

No mold last grow. Mold the grow before. I doubt there is more spores than normal in the room, but, it could be in the coco. From my poor memory coco is inoculated with a fungal spore...and I can't remember why.

If I can't save these I'm going to toss the coco and start with new.

My coco is recycled by me and maybe I haven't done it well enough.

 

[Bluey]

I'm not over watering.

I suspect the coco in the top of these large 50ltr pots is now on its 3rd grow. There are some still small root filaments in there. I suspect something is wrong with it.

I did pour some H²O² in one of them at the 200 to 1 ratio prior to dropping in the sprout. A small amount, maybe 50ml. That one has progressed the furthest then died.

Environment is good. Light is good. Nutes are good. Must be the medium

 

[Bluey]

Removed the domes from the small seedlings that had stalled on all 50ltr pots. They shrivelled up in 4 to 6 hours. Pulled one out. No roots. I blame the used coco...something in it not conducive to root growth. Likely mold or fungus or something like that as you indicated Franklin

So I will start a run of 3 new WW x SD photos today and plant sprouts in new coco.

I am confident this will solve the horrid run of seedlings stalling in these three pots.

Seeds going into 200 to 1 H²O² solution now.

 

[No3odiesShad0w]

Have you ever tried yucca? Adding it to water or foliar? It's a mild fungicide and surfactant. Maybe it can help with fungus spores and the way the water acts. I know Coco is already great when it comes to getting oxygen to your roots but that can also aid fungal growth. By giving them fungicidal water, maybe the roots would have a better chance at cementing themselves?

 

[Bluey]

I haven't tried that but read about it a whole ago. Cheers.

I've tossed all the coco from the 50ltr pots and started with new today. I have 3 WW x SD on papertowel atm with a bit of H²O² at 200:1 and am keeping it moist with plain water.

I've given the new coco in the 3 pots a pour through of nutes at 0.2EC pH 5.8.

The seeds have popped and I'll be putting them into the coco in about 48hrs

 

[Bluey]

So almost a month in since germination and here we have 3 autos and a OZ x photo coming along nicely.
1.4 EC pH 5.9 25⁰C day 18/6 DLI 22 to 24 and ramping up the lighting pretty quickly now.
No run off yet but medium is not allowed to dry off.



Above we see mutant auto far left, bottom right is the OZ x photoperiod and the other 3 autos and below a close up of the OZ x photo



I plan on cloning this OZ x as it is the only one that rooted as a seedling. Only having the one grow space I have not been able to stretch it out for an ideal clone as it is sitting beside the autos and I dont want to compromise them too much. 7.5 gal pots for size reference

 

[No3odiesShad0w]

I'm glad my leaves are starting to look nice and green. No red stems above the stress line from the transplant. Especially the pineapple Express..... She def on the express train. I'll say it again she's going to be a beast! I'm hoping the Tangie will catch up since she's in the Coco mix.
You're right about that auto. It's looking funky but not unhealthy. You plan on following through with it or just watching her for now?

 

[Bluey]

Glad to hear yours are steaming along @No3odiesShad0w

I'll keep the mutant going as long as I have room. I should be giving it less EC and less light as it is clearly not as far developed but I'm not.

Let's see what happens

 

[No3odiesShad0w]

Just because it looks less developed, don't be fooled it's an auto. It goes by age. Sure you don't want to stunt it but if it's not showing any nutrient stress then you're fine. Just an eccentric plant lol

 

[Bluey]

The 3 autos and the photo are racing along. The photo which is an OZ x is just winning. The fingers are the fattest I've grown....which isn't hard given I've only ever grown sativa dominants. EC now at 1.6 and I'm seeing that is probably about its max atm and DLI high 20's, about their current limit.

I put the 3 sprouts into the coco with a bit of rainwater sprayed over them and domed them. Light is at 150/170 PPFD. Temps are a bit higher than ideal for seedlings at 24/25⁰C day and 21⁰C night but fingers crossed. They should break through in 2 to 3 days. Hopefully they root. I moved the humidifier right away from them.

 

[Bluey]

Interesting colour on the Red CBD x AK47 autos new growth.

Is this what you see Franklin or am I perhaps pushing them just a tad too much?

They are growing fast now...very fast