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Post by mwamsley on Jun 20, 2013 7:21:40 GMT -8
Slightly off topic.... After searching, it appears that fasciation in oca is well known. Nevertheless, it's very interesting. The plant becomes extremely dwarfed. A big flat ribbon of stems slowly grows. It will be interesting to see the tubers.  |
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billw
Junior Member
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Post by billw on Jun 20, 2013 8:50:55 GMT -8
The tubers may actually look normal. Some (most, in my limited experience) will send up normal stems along side fasciated stems and there is no way to tell what the tubers look like until you dig them.
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billw
Junior Member
Posts: 76
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Post by billw on Jun 20, 2013 11:46:30 GMT -8
BTW, I suspect that oca fasciates very easily from damaged meristems, as I have seen a lot of tubers that produce sprouts that are normal at the base and then fan out like little hands. These then go on to produce fasciated stems, which may help to explain why you get a crop of normal tubers from a plant that has such a stem. If you want to see a tuber crop with the same traits, it might be possible to take a cutting above the point where the fasciation starts and root it.
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Post by Tom Wagner on Jun 20, 2013 13:39:24 GMT -8
I had either forgotten or never known that the "ribbon stem" as I called it in my youth was actually called fasciation. I use that term for tomato fruits. Sweet potatoes (Yams) have been known to do that for many years ago...never seen any tubers like the stem above it. Here is a Sweet potato vines  |
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Post by mwamsley on Jun 20, 2013 14:45:19 GMT -8
The oca tuber I planted was fasciated, and only this ribbon stem has appeared. The plant is only 4 inches tall, while my other "normal" oca plants are bushes. From what I have read, fasciation can result from disease. That would make sense with oca since they supposedly full of viruses.  |
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billw
Junior Member
Posts: 76
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Post by billw on Jun 21, 2013 20:25:48 GMT -8
I knew that I had a plant that illustrated what I was talking about, but it took forever to find it again:  It was hard to get a clear picture, but you can see that the right two stems are fasciated, while the rest are normal. |
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billw
Junior Member
Posts: 76
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Post by billw on Jun 21, 2013 20:32:40 GMT -8
And here is a pic that adds to your observation that fasciation stunts the plant:  The fasciated side is short with denser foliage and the normal side is the same height as the surrounding plants. |
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Post by becca63 on Jul 28, 2017 12:52:55 GMT -8
I had either forgotten or never known that the "ribbon stem" as I called it in my youth was actually called fasciation. I use that term for tomato fruits. Sweet potatoes (Yams) have been known to do that for many years ago...never seen any tubers like the stem above it. Here is a Sweet potato vines |
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