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Old 27-05-2016, 01:32 PM posted to uk.rec.gardening
David[_21_] David[_21_] is offline
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Default Unusual cotyledon behaviour

On Fri, 27 May 2016 08:55:02 +0100, Jeff Layman wrote:

Maybe a little OT, but has anyone seen seedling behaviour like this:
http://tinypic.com/r/wt8w7a/9

These are seedlings of Plum Mango (Bouea macrophylla), grown from seeds
obtained from fruit bought at that well-known purveyor of exotic seeds,
Marks & Spencer. What is strange to me is that the leaves hang down
vertically. I have never seen this before with any seedling.

The youngest one, extreme right, germinated a week ago, and when it
first appeared I am pretty sure the leaves were almost horizontal, but
within a few hours had dropped to the position shown. The oldest
seedling (about a month old) now has green, rather than brownish leaves,
but these still show no sign of moving to a horizontal position. I would
have though that a horizontal leaf position would be sought by all
seedlings as that is the most efficient fr photosynthesis.


If you are in an open area you can stretch your arms out.

If you are on the tube in rush hour then you hunch everything in.

Looks like a way to get the maximum leaf area in the minimum space - grow
up tall and thin with nothing sticking out too far to catch on other
plants/trees.

Cheers


Dave R


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