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nafex - Re: [NAFEX] Ernest's Evans cherries

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  • From: Douglas Woodard <dwoodard@becon.org>
  • To: North American Fruit Explorers <nafex@lists.ibiblio.org>
  • Subject: Re: [NAFEX] Ernest's Evans cherries
  • Date: Mon, 21 Jun 2010 12:43:46 -0400

Dan, what you have heard does not agree with what I have heard from a very well-informed person, which is that Evans does not come true from seed and that Evans seedlings are not even cold-hardy at Edmonton. See

<http://www.ibiblio.org/ecolandtech/NAFEX/message-archives/old/msg03690.html>

What is the source of your information, and where are you?

Growing sour cherries on their own roots is apparently not that easy, and tissue culture is the favoured way. Evidently some nurseries prefer to graft, perhaps to have the whole process under their own control.

You may be interested in the articles linked at
http://en.wikipedia.org/wiki/Evans_Cherry

Doug Woodard
St. Catharines, Ontario, Canada


Dan Nave wrote:
Why would one bother to graft Evans since it it is hearty on it's own roots and supposedly grows true from seed?...

Dan



Douglas Woodard wrote:
Ernest, grafted trees from commercial sources would probably be grafted on Mazzard or Mahaleb. If I remember rightly you are in a particularly cold area of northern Minnesota. I would expect your temperatures to damage (in a warm winter unless with heavy snow cover) or kill either Mazzard or Mahaleb. Mahaleb is fussy about good drainage, likes a coarse subsoil. Any hardy rootstock readily available cheap to a comercial nursery is likely to suffer from compatibility problems. The only rootstock I can think of that *might* suit is Prunus X Dropmoreana, Frank Skinner's creation. Forty years ago East Malling did some work with it as a stock for sweet cherries, and from what I recall reading, some clones of it were compatible with sweets and some were not.

If your sources were what I would consider fully competent and honourable, they would have told you what rootstock they were using - unless maybe they were afraid their competition would find out about it.
This kind of competitive pressure is one of the curses of the nursry business. It's extremely hard to know if your supplier is understandably secretive, or crooked or irresponsible.

Doug Woodard
St. Catharines, Ontario, Canada


Ernest Plutko wrote:
"Before" means before I buried grafts. I was not doing a research
study. I was just trying to get trees to live through winters. I
bought trees from several sources. Local and mail-order. It is
possible burying graft is just protecting graft from winter cold. This fall I will probe around buried trunks to see if roots have
grown from Evans trunks. I'll look up Evans own-root sources and let
you know.

---- Original Message ----
From: murphman108@msn.com
To: nafex@lists.ibiblio.org
Subject: RE: [NAFEX] Ernest's Evans cherries
Date: Sat, 19 Jun 2010 03:14:46 +0000

Hello Ernest;



I am interested in your Evans story. The trees that you buried the
graft union were better 'than before'. What does 'than before' mean?
Did you plant some at the same time from the same batch without
burying the graft? Same plant source? This is a decent finding on
your part. Please elaborate. Also, who is the 'own root' Evans cherry
tree source?



Murph




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