HYB: genetics questions....
iris@hort.net
  • Subject: HYB: genetics questions....
  • From: m* s* <s*@yahoo.com>
  • Date: Fri, 4 Jun 2010 10:45:05 -0700 (PDT)
Hello all,
I have been dabbling for a few years now with iris hybridizing.
I am gathering a better understanding of some of the things that are happening
genetically.
My question is more for the more seasoned hybridizers who have done many
different crosses.
What I am wondering is, before making more crosses with potentially  'compost
flowers', how much of the grandparents genetic material will be passed to f2
if f1 is inferior to the parents. Will I just keep watering down the genetic
material?
example, I cross two large flowered TBs, ''a with b'' and end up with ''c'' a
smaller flowered and differently colored flower which is definitely not a show
stopper, is it potentially worth backcrossing or outcrossing ''f1 c'' to try
and grab any of the granparents genes in f2 seedlings? Or is it a compost
flower and just continue to work with different seedlings that show
improvements over the parents.
I am not certain if grandparents coloration would show up in f2 or if the
larger flower size of grandparents might show back up in next generation if I
use f1 in a cross, even though f1 is showing a smaller flower.
right now I am working on flower size in some of my seedlings, but need a bit
more insight.
thanks!
Steve M. zone 4b Northeastern MN
 
 

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