[NAFEX] It doesn't take a genus to see that there must be some relationship...

John Smith friendly27sw at yahoo.com
Wed Feb 16 21:02:36 EST 2005


I was pondering Stephen Sadler's information and
looking some things up, when I discovered there is
apparently a +Crataegomespilus which is a hybrid
between hawthorn and a medlar that was created by
grafting, not hybrid created by a sexual cross.  I had
no idea a graft could take on characteristics of both
parents...  I always thought the scion would maintain
it's separate genetics, but I guess that's not always
the case.  I wonder how common this is?


--- Stephen Sadler <Docshiva at Docshiva.org> wrote:

> You're addressing a question I've long been curious
> about - what is the
> relationship between genera Aronia, Pyrus, Sorbus,
> and Crataegus (and select
> others)?  Aronia and Pyrus will graft; Pyrus and
> sorbus will cross; Aronia x
> Prunifolia is classified in genera Crataegus,
> Mespilus, Photinia, and Pyrus,
> depending on source; Crataegus, Sorbus, and Mespilus
> will cross...
> 
> I still await DNA testing for further definition. 
> As many of you know,
> botanical species are classified by characteristics
> of the flowers, which
> assumes a definitive correlation between genetics
> and floral
> characteristics.  That assumption does often work
> out, but is not by any
> means exact.  Fifteen years ago I was somewhat
> keeping track of efforts to
> use genetic testing to reclassify plants.  The
> zoologists are certainly
> making strides in genetic studies, but I haven't
> heard about botanical
> reclassification in some time.  
> 
> News and comments appreciated... 
> 
> Stephen Sadler, Ph.D.
> USDA 9, AHS heat zone 8, 
> Sacramento CA - Mediterranean climate
> 
> 
> -----Original Message-----
> From: nafex-bounces at lists.ibiblio.org
> [mailto:nafex-bounces at lists.ibiblio.org] On Behalf
> Of rob hamilton
> Sent: Wednesday, February 16, 2005 4:34 AM
> To: North American Fruit Explorers
> Subject: Re: [NAFEX] aronia rootstock
> 
> I has anyone else used Aronia as a rootstock for
> anything else? What is it comapatable with?
> 
> 
> 
> 
> --- Doreen Howard <gardendiva at charter.net> wrote:
> 
> > I talked with the people at One Green World today,
> > when they called to 
> > confirm the shipping date of the dwarf Shipova I
> > ordered.  I asked about the 
> > aronia rootstock and if it effected the precocity
> of
> > the tree.  They said 
> > their experience is that Shipova on aronia bears
> > fruit in 3-4 years.  The 
> > person I talked with said that has been the
> > experience with their grafts at 
> > the nursery.   Does this sound reasonable to you
> > experts, given that Shipova 
> > normally doesn't bear until the 7th year or later?
> > Doreen Howard 
> > 
> > 
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