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hardy  Aroids)" <ARISAEMA-L at NIC.SURFNET.NL> Aroids)" <ARISAEMA-L at NIC.SURFNET.NL>
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From: Goete Svanholm <gote at SVANHOLM.SE>
Subject: Re: Breeding
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I agree Brian,
There are examples of odd crosses which normally never would give viable
seed. But after hundreds of attempts they finally gave the odd plant whic=h
when back-crossed gave a great sucess. The whole Aurelianense group of
trumpet lilies (Golden Splendour and allies) go back to a single such
unlikely cross by M. Debras in Orleans some 70-80 years ago.
Tetraploids usually give viable seed. It is the triploids that do not.
Sometimes the odd triploid by doubling will give rise to a hexaploid that
again is fertile. Meconopsis grandis and betonicifloia may give viable se=ed
when crossed but the result is a triploid sterile plant. However, the
magnificent fertile blue poppies that are now called M. 'Lingholm' are th=e
result of a chromosome doubling of such a sterile hybrid. Primula kewensi=s
is another such example.
G=F6te

----- Original Message -----
From: "Brian Williams" <pugturd at ALLTEL.NET>
To: <ARISAEMA-L at NIC.SURFNET.NL>
Sent: Thursday, December 04, 2008 11:13 PM
Subject: Re: Breeding


> Erick I would not consider any of it wasted effort. I have been breedin=g
> aroids for years and it seems no one is positive on what can and cannot
> breed. Some of it maybe unlikely and not yet possible, they may say the
> genes will not match or that it should not work but the fact is most if
> not all have never really tried. One think I have found is that some
> plants are very hard to cross and that it can take many times to get a
> successful cross. As one breeder told me he tried over 100 times to get
> two plants to cross. He finally got it to take after all the attempts.
> I have also had a lot of people tell me that tetraploids and other plan=ts
> considered sterile will not produce seeds. It is unlikely but I have ha=d
> many good results of viable seed from plants considered completely ster=ile
> by everyone else. The fact is I don't particularly like the work
> impossible and in plant breeding I think it should never really be used.
> Sure something's are unlikely or many not be possible at the moment.
> For some of your far fetched crosses you may want to look more into
> cryptic pollenation. Killing the pollen of the mother plant mixing it w=ith
> your viable pollen and applying the mix back to your mother plant.
>
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