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Why are the stems of my plants flat and fibrous like ribbon?

Posted by dmatx none (My Page) on
Thu, May 1, 14 at 1:29

I am a really new gardener. I have lots of trees so that is a challenge. I do, however, have a real solid base of making compost and have been doing it for years just out of environmental awareness.

My problem is that many of the plants I started as seeds have abnormal stems. Instead of being round they are flat, fibrous and kind of twisted like ribbon. The plants are alive but not growing well and the color is off. You can see in this example near the tops. I will try and figure out if I can post additional pictures.

I am not sure if I should just rip the ones affected out and replace or if this is survivable. I am 90% sure this is not an insect and I don't see any kind of growth/fungus/mold on them.


Follow-Up Postings:

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RE: Why are the stems of my plants flat and fibrous like ribbon?

Pic2


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RE: Why are the stems of my plants flat and fibrous like ribbon?

hopefully you can see in this example. Some of them I swear are flat like shoelaces.


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RE: Why are the stems of my plants flat and fibrous like ribbon?

They look like squash/zuke seedlings that are very elongated getting uneven watering and not enough direct sun causing them to split.


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RE: Why are the stems of my plants flat and fibrous like ribbon?

The change in the leaf stems give them a higher surface area to volume ratio, which would make them more efficient at expelling and evaporating water. It would do this either to rid itelf of harmful ammounts of water, or to cool the plant, or a combination of both.

However, leaves (foiliage) woud be naturally more efficient at these tasks than stems. So maybe something on the leaves like naturally occurring wax, or a build-up of sprays and dust, could be blocking the leaves from efficiently evaporating. Maybe hosing them down good with a light soap (quickly-you don't want to soak them if they are alteady too wet.) Good luck, and remember that new squash plants grow very quickly (from seed) and may be your easiest way out of this problem.
-Terry

This post was edited by terry_neoh on Thu, May 1, 14 at 6:12


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RE: Why are the stems of my plants flat and fibrous like ribbon?

Flat, markedly elongated, and split stems are caused by a severe insufficiency of the needed light if grown indoors or sun if grown outdoors. You don't indicate where growing - in or out. Their color is also an indication of very poor light/sun exposure.

Ambient air temps can contribute to the problem but since you give no indication of your location or zone I can't comment on how that could have contributed in this case.

These seedlings are not salvageable.

Dave


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