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Jun 4, 2020 12:10 PM CST
Sweden
Hi,

I am quite new here. Been reading a lot of threads but never posted anything.
Here is my first contribution with a question.

I wanted to see what would happen if I put a tomatoe plant inside a sealed jar and just left if there.
Now it has started to grow roots directly out of the stem.

What is the reason/how can it happen?

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Hope you are having a good day


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Last edited by LetsGetPhil Jun 4, 2020 12:12 PM Icon for preview
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Jun 4, 2020 1:54 PM CST
Name: sumire
Reno, Nevada (Zone 6a)
Welcome!
Tomatoes can root along their stems at nodes, or joints in the branches. You have managed to get the humidity and temperature correct to convince the tomato that it should form roots up there in the air.

Many gardeners take advantage of this habit by planting their tomato seedlings halfway into the ground so that significant stem is buried too. This would kill many plants, but it helps the tomato form a good rooting system.
www.sumiredesigns.com
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Jun 4, 2020 1:56 PM CST
Name: Lee-Roy
Bilzen, Belgium (Zone 8a)
Region: Belgium Composter Region: Europe Ferns Hostas Irises
Lilies Lover of wildlife (Black bear badge)
Tomatoes are known to produce roots from the stem, that's why people plant them deeper once they're mature enough to be in their final location. More roots means a greater ability to take up water and nutrients.

Because the relative humidity in that jar is at a constant 100% it induces root growth.
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Jun 5, 2020 9:55 AM CST
Sweden
sumire said: Welcome!
Tomatoes can root along their stems at nodes, or joints in the branches. You have managed to get the humidity and temperature correct to convince the tomato that it should form roots up there in the air.

Many gardeners take advantage of this habit by planting their tomato seedlings halfway into the ground so that significant stem is buried too. This would kill many plants, but it helps the tomato form a good rooting system.


Wow, I did not know this. Maybe I should start planting my tomato seedlings a bit further down in to the dirt. Thanks for the detailed answers! Smiling
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