Tomato Growing Thread 2021

Hi,
My first harvest experimental tomatoes have developed edemas on the lower leaves.
I read from internet that this is usually imbalance in nutrients, too red lights or high humidity/low ventilation.

I have humidity controlled at 50%, so that's unlikely culprit.
Red leds there are 4/35, so unlikely thats causing it either.

I suspect nutrients..but what?
I'm using regular hydroponic solution, all parameters are within range.
Herbs, beans, cucumbers and peppers are not affected. So its likely something that makes tomato different from others.

Any thoughts?

 

Your guiding me here with your compost mixtures....
I have so far some from last year Gardeners Delight all failed with a virus so purchased cheapy plants in local supermarket and they were of not great though.
Just received from a secret destination.....Sakura
Cherry Baby F1
Cilliegia 'Cerise'
ended up somehow with 28 grams of Basil'Genovese' so will need to set up a basil business

 

I think I put it in Tomato seeds 2020. I not very savvy

 

Interesting, so its likely the lights, but not red as I don't really have red lights...

Any ideas why the lights may cause blistering?

As mine are hydroponic, I don't intend to take them outdoors. They are about to start flowering.

 

I've only experienced this problem (Edemas, AKA Oedemas) once, when in 2015 my Chillies in an indoor Growlightbox suffered from it, which I assumed was down to my Chillies sitting in water (they were at low end of plants sitting in a gravel tray right at the back in a far corner where my watering must have been a bit hit and miss).

Those Chillies were beside tomato plants that were not affected by the excess water (+ increased humidity?) and they were at the opposite end from my fan.

 

My seeds arrived today.
Garnet and Jaune Flamme also got sungold. I need to sit on my hands now and not sow too early. Going to sow at start of March I think.

Rusty