Re: not twins ?

Roger,
     where are you that it's so hot?  I'm in NY, and it can get pretty
hot during the summer months.  What if , instead of self pollination,
you just crossed the same plants over and over again.  for example, self
pollinate A, then take the seeds from A and cross them onto B (which
would be self pollinated), then take those seeds lets call them C, and
cross A onto them, then take those seeds, D, and cross A onto them
again.  and so on and so forth.  Then what happens?

scott




"res" <res@colfax.com> on 11/06/98 11:02:23 AM

Please respond to pumpkins@mallorn.com

To:   pumpkins@mallorn.com
cc:    (bcc: Scott Armstrong)
Subject:  not twins ?


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From: "res" <res@colfax.com>
To: pumpkins@mallorn.com
Subject: not twins ?
Date: Fri, 6 Nov 1998 08:02:23 -0800
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Scott, Sorry about the spelling.  Colchicine is from the fall crocus and
blocks cell wall formation during the process of division. This results
in
twice the number of chromosomes as normal.  Sometimes it also results in
fruit being twice as big.  You are right in your assumptions.  We are
lucky
we don't work with grasses.  Before DNA splicing the grain crop breeders
could only have a new strain every 20 yrs.  Better records of phenotypic
displays need to be kept.  Its not enough to have the name of the
parents.
If your more into the breeding, you could do things that would speed up
the
generational count.  Self-pollinate 1 pumpkin and cross-pollinate
1pumpkin
on the same plant, grow one indoors just for the genetics.  You need to
keep good records and be sure to keep track of which is which out in the
field.  I'm in my 5th generation of colchicine treatments on the seeds
I'm
working with, I call it the 275Swalley, Heaviest cert. wt. with my name.
I
started from an order of catalog seeds 15 yrs ago.   My climateis too
hot
but next year I might have a cure for that.  Have fun, Roger

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