Re: Why the 567.5??

I've got a theory for you on this one!  Over the last little while a good deal
of talk has taken place about hybrid vigor among AG's.   Now I realize that
there are many different and equally valid opinions on this matter, but its my
theory that the M567 is a perfect example of what a true to type F1 hybrid
cross can do for the pumpkin world.   Although its not a perfect case, it does
afford and example of two very unrelated lines that were crossed and
consistently produced good genetic potential.   The Laemmle 609 is  a good
example of an inbred line that a plant breeder might maintain.   Helmut Laemmle
got some seed from an unknown source in the early 80's.  Each year he grew a
few plants and kept seeds from the best one, and so on untill 89'.

It just so happened that this cross was the lucky cross, and there was some
degree of hybrid vigor.   And yes there are people working on "recreating" this
cross and other super-productive crosses like it.

Despite the fact that there are as many different theories about pumpkin
genetics as there are growers in the world, the day will come when every grower
can plant a seed every year that is as good as or better than the M567!

Rick - Wisconsin






Vickie Brock wrote:

> Anyone speculate why the 567.5 mombert was soooo sucessful and others
> aren't.  I heard the "only good growers planted it theory " sure..... there
> must be more  hunches . .......was the seed background (which I know is a
> dead end) closer to purity than seeds are today.  Was it the pure lines of
> the Dill 493 and 355?  Was the Laemmle a selfed pumpkin.  Can someone
> recreate it.??
>
> Does anyone think that some seeds do better strictly in the female role and
> vice versa with the some doing better on the male
> side??......................MB
>
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