Hard purple stems, poor growth, droopy leaves

ketamine_disposal_unit

Well-Known Member
I've attached two pics of 2 clones from same mother. Fed the same etc. They seem quite slow to recover from the transplant about a week ago. One is worse than the other 2. Stems are hard and purple and growth is slow. Droopy leaves.

Plants were given azadarachtin root drench before transplant and were well flushed. In coco fed H&G at EC 2.0 pH 5.8-6.0

Tent is rather hot sitting abt 30⁰c and humidity is low because I have trouble keeping humidity up during early veg as the plants aren't transpiring much. If I cut down airflow the tent gets way too hot.

Again, I have flushed extensively and all plants are showing this stress to some extent but this one is particularly bad. It's only been about a week since transplant. But would like to identify this issue to avoid in future

I have seen this before and assumed it came from the azadarachtin but the plants recovered overnight from flushing which these havent.20220806_181112.jpg20220806_181109.jpg
 

MAK1

Member
Heat stress can cause this. Improper watering might cause this. You said, "I have flushed extensively." Flushing is stressful on plants, why did you flush in the first place? What was the issue that got you to flush? Did you feed them after flushing? Are you feeding them enough over all? They don't look over fertilized, give them some. Magnesium deficiency or maybe phosphorous?
 
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farmerfischer

Well-Known Member
It looks hungry.. yellowing leaves with red veins can happen with low nutrients ..you say you feed at 2.0 ec but have been flushing frequently??.. it might be possible you're pushing the food right out of the medium..
 
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vertnugs

Well-Known Member
How did your roots look at transplant?

I'm gonna assume they looked "somewhat" like they do now before they were transplanted?

Was your root drench just regular IPM or are you fighting pests?
 

twentyeight.threefive

Well-Known Member
Thanks all
Must be being overwatered will pull the feed for a few days.
Plants that large in coco can't be overwatered. Stopping daily feeds will only make things worse.

I'd reduce the feed EC. How close are the lights?

At those high temps and low humidity, transpiration will be extremely high, the plants are using more water than nutrients.
 

ketamine_disposal_unit

Well-Known Member
Plants that large in coco can't be overwatered. Stopping daily feeds will only make things worse.

I'd reduce the feed EC. How close are the lights?
The lights are all the way at top of tent, measured at about 700umols. Never have problems with this system. I know its seen as impossible to overwater in coco but I'm beginning to think it's a possibility they're getting waterlogged. Have run these strains before at same EC, they came out of the veg tent at same EC in a flood n drain table in smaller pots. They get fed 2x a day at 1 minutes watering per feed from drippers
 

twentyeight.threefive

Well-Known Member
The lights are all the way at top of tent, measured at about 700umols. Never have problems with this system. I know its seen as impossible to overwater in coco but I'm beginning to think it's a possibility they're getting waterlogged. Have run these strains before at same EC, they came out of the veg tent at same EC in a flood n drain table in smaller pots. They get fed 2x a day at 1 minutes watering per feed from drippers
I'd hand water flush them with a low EC feed. And continue normal feeding with a lower EC feed.
 

twentyeight.threefive

Well-Known Member
The lights are all the way at top of tent, measured at about 700umols. Never have problems with this system. I know its seen as impossible to overwater in coco but I'm beginning to think it's a possibility they're getting waterlogged. Have run these strains before at same EC, they came out of the veg tent at same EC in a flood n drain table in smaller pots. They get fed 2x a day at 1 minutes watering per feed from drippers
I guessed at your low humidity number but as you can see from the high temperature and low humidity you are way into the danger zone for over transpiration. You should drastically lower your EC or get your temperature and humidity in check.

overtrans.jpg
 
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