Re: HYB - TB: "Throwbacks" (Re: CULT/HYB: Harvest of Memories)


At 01:08 PM 1/1/98 -0700, Jeff wrote:

> However, I think that Linda as
>referring to something else, which is that when at least one of the parents
>in a cross is a Schreiner intro, all or nearly all of the seedlings tend to
>have flowers with a form that is reminiscent of an earlier stage of
>development of TB iris than that of the parents - hence the term
>"throwbacks". Her comment made me go back and review my own hybridizing
>records, and though I have not made a large number of crosses with
>Schreiner iris, from my experience it seems that Linda's statement is
>basically true, and that far from seeing an "advance" in form in the
>seedlings from such crosses, or even form that resembles that of the
>parents, almost without exception the form has been about twenty years
>*behind* that of the parents.
>
>If this observation can be confirmed by the experience of others, it could
>be quite useful not only to those who wish to achieve further "advances" in
>TB form, but also to those who may be interested in hybridizing iris with a
>"Retro" look.

How interesting!  Can anybody else address this comment?  Why would
Schreiners' things give a higher percentage of "throwbacks" than other
hybridizers' irises?  Very curious.  

Sharon? Rick? Walta? Gary? other hybridizers --what say you?

Dorothy 



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