[nafex] Re: Tip Bearers

Doreen Howard doreenh at ticon.net
Mon May 7 12:22:14 EDT 2001

That's interesting about the columnar apple trees producing poplar type
growth of grafted varieties.  I, too, planted columnar apples, because there
was no space for even two dwarf apple trees.  We got two apples off the
trees before moving north.  And, I agree with Roger Miller that the flavor
was nothing great.  The apples were flat and mealy.  What varieties did he
graft on to the column trees?  If the flavor and quality holds true on the
grafted varieties, the poplar-like growth would be very useful for training
as an espalier, I'd think.  Hmmm.  Something to experiment with!
Doreen Howard

-----Original Message-----
From: jhecksel at voyager.net <jhecksel at voyager.net>
To: nafex at yahoogroups.com <nafex at yahoogroups.com>
Date: Monday, May 07, 2001 11:09 AM
Subject: Re: [nafex] Re: Tip Bearers

>Well, Chris, that is a mystery.
>At the risk of talking around your question and not answering it....
>One factor that is not discussed very often is rootstock and interstem
>influence on tree shape.
>I visited Roger Miller's place (in Eaton Rapids) on Saturday.  He
>showed me several trees where he grafted several apple cultivars on
>"column" type apples.  He had fruited out the column apples and was
>not impressed with the quality, so he top-worked several of them.
>The top-worked varieties grew like Lombardy poplar trees....much like
>the form of the column trees.
>My guess is that the column "interstem" produces auxins (growth
>regulators) that inhibit side shoot development and make narrow crotch
>angles.  The textbooks identify the growing point as the source of the
>growth regulators that inhibit the development of side buds.  Pinch
>out the growing tip and the tree will "feather".  Obviously, growth
>regulators of various sources are produced in all parts of the tree.
>Best regards, Joe
>> Yellow Newtown is listed as a Semi-Spur.
>> Hmmm,  is this different performance at a different climate?  Or
>> something else?
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