Re: HYB: Black Forest/aphylla


--- In iris-talk@y..., GardnrJan1@a... wrote:
"...there must be a few WITHOUT [Black Forest]...in their ancestry... 
what about EDENITE[?]"

The problems do not depend on not Black Forest ancestry alone.  The 
problems come from I. aphylla.  Black Forest has been pointed to 
because it typifies the kind of behavior--bloom out, temperature and 
drought responses, etc.--that resemble some if not most clones of 
species aphyllas.

Edenite still stems from aphylla.  Key breeders among Paul Cook's and 
Gordon Plough's blacks included Dark Boatman, Indiana Night and 
Sable, all including aphylla in their ancestry.  Dark Boatman is even 
from Black Forest crossed with a second generation seedling from 
crosses involving Modoc, Black Wings and Sable.  Edenite is from a 
Thompkins red crossed with Sable Night which includes both Indiana 
Night and Sable in its pedigree, along with other Cook crosses.

Plough's SWAHILI is from Edenite x Allegiance and does display the 
problem behavior in some areas.  I don't believe there is a dark out 
there that does not have aphylla in its ancestry.  That's apparently 
WHY they are dark.  It seems that is where the genetics for dark 
color comes from.

The solution would seem to be to keep breeding for darks and select 
those with the least problem where possible.  Eventually the linkage 
between problem behavior and dark color might separate.  We're 
already part way there.

Neil Mogensen   western NC  zone 7a


 

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