Re: Vines and the Coriolis Effect


IF this is a real effect, could it be the growing tip is following the sun
around ?

----------
> From: Rand Nicholson <writserv@nbnet.nb.ca>
> To: remmulp@servtech.com
> Subject: Re: Vines and the Coriolis Effect
> Date: Saturday, December 28, 1996 5:40 PM
> 
> >It's my understanding that most species have a characteristic
> >phyllotaxy.  Would we expect then that a given species planted
> >"north" and "south" would exhibit this in equal magnitude but
> >opposite direction?  It would surprise me, but then I've been
> >surprised more than once in my life and the natural world IS the
> >place to find surprises :)
> >
> >[phyllotaxy refers to the natural "spiral" or "twist" in a plant.
> >Start at a leaf and count the number of spirals made until a leaf is
> >found directly above and in line with the first and then divide by
> >the total number of leaves passed.]
> >
> >|================================================================|
> >|  David G. Bauman                     Dawn G. Bauman            |
> >|  Collections Botanist                Greenhouse Manager        |
> >|  Indianapolis Zoo                    IUPUI, Biology Dept.      |
> >|  (317) 630-2060  voice               (317) 274-0584  voice     |
> >|  (317) 630-5153  fax                 (317) 274-2846  fax       |
> >|  dbauman@mail.indyzoo.com            dbauman@indyvax.iupui.edu |
> >|================================================================|
> 
> Be that as it may, David, the Scarlet Runner bean vines in this part of
the
> continent of North America (Maritime Canada) and, as far North as {The
> beginnings of the "True North" :)  } Yellowknife, Sweet Peas, are not
> _right_ or _left_ "handed". They _will_ try to continue a twist, once
they
> have something to grasp onto, but they have a haphazard inclination to
> spiral in one direction from what I have seen. Indeed, it seems to be in
a
> vine's nature just take advantage of what support is offered within its
> biosystem.
> 
> I have left the old Scarlet Runner (and others; Morning Glories, etc.)
> vines (don't ask) where they were when our Canadian winter set in. They
are
> perfectly preserved by the nasty cold winds and frosts, albiet leafless.
> 
> (sigh) More clean-up for me to do next spring!
> 
> 
> 
> 


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