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Thread: Germination for aeroponics

  1. #1

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    Default Germination for aeroponics

    I'm testing germination methods for aeroponics and couldn't find much info out there on the web, a lot of the info points towards propogating cuttings.

    From seed here's what I am trying at the moment. I wondering if someone can either categorically tell me it won't work, if there's a better method, or if there's a way I could tweak this method?

    I don't mind the cold hard truth if it's all wrong please just tell me.

    The plan is:

    - Seeds germinated, 1-2cm strong root showing
    - Popcorn cleaned multiple times and soaked for a couple of hours
    - Create a res of water slightly under the height of the seed in popcorn
    - Use a bottle with 2 holes in to keep res at correct water line
    - Heat mat underneath and in tent to create humidity
    - 2-3 days later when growth is 1-2 inches, remove from prop and move to larger prop withneoprene collar and net pot ready for very light nutes (Forumlex) aero style 15 mins per day for the first week until roots grow and strengthen

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    Thanks

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    Also, they're in darkness until the 1 to 2 inch growth, then when moved to main prop a 2x 12w LED lights giving off around 150-200 umols each introduced.

    Wish I could edit older posts.

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    Maybe I should have posted in the main forum this sub forum doesn't appear to get as many views or replies?

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    Hopefully this testing will help someone like me searching in future...

    24 hours later and 2x have sprouted, shooting up in fact, 1x is about to sprout and 1x is a bit slow.

    The humidity inside the smaller prop dome was very high, no venting, which is why I think they look a bit thin and wet. So I have now switched to a bigger dome, vent open, still on the heat mat to keep the water temp nice, and have introduced lights.

    I'm interested to see if the light will accelerate the growth of the 2x unsprouted and/or slow or speed up the grow / strength of the 2x that have sprouted already. Whatever happens it's all valuable info. I think the water level might be too high so the roots aren't having to dig around to find water... not sure yet. I need them to be stronger before touching them.

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    Interesting project.IMO, they look a little leggy.

    Maybe use a plastic straw to give them support?
    Current Grow (3L coco autos) : Jumper's 2020 shenanigans

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    Quote Originally Posted by Jumper114 View Post
    Interesting project.IMO, they look a little leggy.

    Maybe use a plastic straw to give them support?
    Thanks mate. Any ideas why they would go so leggy after just 24h?

    I think I made a mistake letting them germ for another 12 hours after one sprouted with a half 1/2 cm root, when I planted the root was 1-2cm. My thought was a stronger root = stronger start to the plant.

    Maybe it was the humidity, or the lack of light so they grew super quick searching for light. Hmm.

    I like the idea of giving them support but they looked so delicate I daren't touch them tbh. Maybe I'll have to. Gonna give it a few more hours then have a peak see if I can notice the way they're heading after 12 hours of light and a bit of ventillation. Maybe I can predict their next move but whatever happens it's all being logged.

    I appreciate you chipping in with advice and help by the way, thanks. It's for a good cause and hopefully isn't energy wasted.

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    Last edited by existence; 17-02-20 at 06:43 PM.

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    Basically, the second they are above surface, the cotyledons open and they search for light. They will do anything for light, using up the energy stored in themselves. All they know is to go up... hence the legginess.

    Your issue as such, is the darkness

    Once they are above surface I get them under light. Some do low lights etc, me, the opposite. I prefer short squat girls, so they go into the tent with all lights full tilt. I would not advise this till you know your setup.

    I am afraid you will need to do something and get them supported. You want them vertical.

    Also give them lots of light from a high distance so they can go green and stop them searching upwards.

    You want a high humidity if possible 60-80%. Warm temps ~ 26C

    HTH

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  17. #9

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    Quote Originally Posted by Jumper114 View Post
    Basically, the second they are above surface, the cotyledons open and they search for light. They will do anything for light, using up the energy stored in themselves. All they know is to go up... hence the legginess.

    Your issue as such, is the darkness

    Once they are above surface I get them under light. Some do low lights etc, me, the opposite. I prefer short squat girls, so they go into the tent with all lights full tilt. I would not advise this till you know your setup.

    I am afraid you will need to do something and get them supported. You want them vertical.

    Also give them lots of light from a high distance so they can go green and stop them searching upwards.

    You want a high humidity if possible 60-80%. Warm temps ~ 26C

    HTH
    Thank you for the valuable info. It took just 24h for them to shoot up to be that big... i'll be sure to drop the dark time monitoring more frequently in future.

    Just so I can be ready in advance when would you typically introduce nutrients (Formulex) for the initial early feed?

    RO unit arrived today... went to fit it and some dodgy pipework prior to me resulted in a partly compressed joint pissing water everywhere. Fun.

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    Propped them up a bit.. after just 7 hours under the light they're looking better already. The back left has it's leaves opened further whereas yesterday they were pointing upwards.

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