[nafex] Apple breeding
dwoodard at becon.org
dwoodard at becon.org
Tue Jan 16 03:00:46 EST 2001
>From my reading, apple breeders have found that using some cultivars
as parents gives much better results than using others. I'm sorry
that I can't quote references.
If you want a character in the progeny, you choose parents which show
that character, or parents whose own parents showed it (especially if
you are crossing the F2's to get lots of variation).
If I were breeding for cold hardiness in the F1s, I would far rather
cross say September Ruby x Goodland than Cox Orange x Golden
If I were after eating quality in F1s I would choose
Cox Orange x Golden Delicious over Haas x Bancroft.
I would guess, for example, that the Minnesota station used Malinda a
lot as a parent because it got results for their requirements.
--- In nafex at egroups.com, Fluffy Bunny <the.fluffy.bunny at j...> wrote:
> Ed wrote:
> Yes, there have been several studies which imply validity of the
> Unfortunately, until very recently, many seedlings which germinated
> discarded as being weak growers, non vigorous, etc.
> If folks down south wanted low-chill and high quality, you
> about crossing Sundowner x GoldRush.
> Just a thought.
> My reply:
> Okay so here is the thought.
> In previous posts you have stated with a certain level of
> that apples are very "inbred", so inbred that in general, all the
> germ plasm preservation is relatively futile in regard to
> After conducting a minor analysis I would agree with your
> That being said I am now trying to imagine the reason you would
> choosing superior parents in the first place. Based on the genetic
> combination possible for the apple(I can't remember the number of
> combinations but it was significantly greater than that of a pear)I
> having a hard time imagining that the odds come out better than
> chance of the combinations in the first place.
> Another way to say this is outside of the "crab" disease resistance
> characteristics that all the modern disease resistant varieties
> have in their lineage, I am having difficulty imagining that
> the parents would produce an outcome greater than just allowing
> and latent genetic patterns come forth naturally. In other words
> seems that the chances of a success are something in the magnitude
> in 7500 or so(my computer was wiped out over the weekend so I lost
> actual data), which approximates that of chance.
> So, I have to ask Ed(or anyone else), do you actually think their
> merit in actually selecting the parents for apples in breeding
> or is it another case of giving the participants the "warm and
> As always wishing you all the best,
> the ever curious fluffy bunny
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