Skip to Content.
Sympa Menu

nafex - Re: [NAFEX] prunus genetics

Subject: North American Fruit Explorers mailing list at ibiblio

List archive

Chronological Thread  
  • From: "MARIE ASHTON" <>
  • To: "North American Fruit Explorers" <>
  • Subject: Re: [NAFEX] prunus genetics
  • Date: Sun, 30 Dec 2007 15:56:16 -0600

On the Pititsin series of plums as it says below they are closer to pure Salicina plums than most Salicina plums in North America.

PTITSIN SELECTIONS: Imported from L.V. Ptitsin, Harbin, Manchuria in 1939 by the Canada Department of Agriculture, Morden, Manitoba, Canada. In an effort to find very winter hardy plum varieties for Canada as well as finding hardy Prunus salicina these selections were imported from Manchuria. They are closer genetically to true Prunus salicina than most cultivars in North America.

As to the statement about pure Salicina plums, there can be no doubt that the Japanese hybridized the selections of plums they imported from China in their long past history. Since the plums that are the breeding foundation of our Japanese plum breeding programs are from Japan and not China then in my opinion they are not true to the wild Salicina plums of China. It seems that the Salicinas lost some of their cold hardiness when they went to Japan. There is no doubt that the Salicinas of Korea and Manchuria are "generally" more cold hardy than the Silicinas of Japan. It would be nice to have some DNA tests done, to determine genetic origin. At present I am not aware of any that have been done.


Richard Ashton

Oak Creek Orchard

----- Original Message ----- From: <>
To: "North American Fruit Explorers" <>
Sent: Sunday, December 30, 2007 3:00 PM
Subject: Re: [NAFEX] prunus genetics

Richard, can you provide more information on your statement that there are
no pure Prunus salicina plums?

There are some quite cold-hardy P. salicina plums in Canada which I
believe derive from seed obtained from Dr. Woykoff/Woykov or Woiekoff of
Manchuria in the 1930s, the "Ptitsin" series, Ivanovka and others. The
hardiest I've heard of is "Fofonoff", bred by the late Wasyl Fofonoff at
Buchanan, Saskatchewan in zone 1b.

Doug Woodard
St. Catharines, Ontario, Canada


Shiro is a cross of the varieties Robinson, Myrobalan and Wickson. Within
this cross are the plum species P. salicina, P. simonii, P. cerasifera and
P. munsoniana.

Methley is a cross of P. salicina and P. cerasifera.

As Diane quoted Santa Rosa contains the species P. salicina, P. simonii
and P. americana. It is not a "true" P. salicina plum as are Abundance,
Burbank and Satsuma.

I should add here, that there is no such thing as a truly pure Prunus
salicina plum as all are hybrids to some degree. The species actually came
from China and was imported into Japan.

Of all the "true" Japanese plum varieties, Burbank has done the best in
the East over the years and will usually set a heavy crop in the East and
needs thinning to obtain the best fruit size and quality. It has some
problems with fungal diseases in humid climates.

I believe that your are right about temperature being a factor in the
fruit set of some "Japanese" plums in the East but it may be winter bud
hardiness more than spring temperatures. Some of the "Japanese" plums are
known not to be very winter hardy. The P. salicina hybrids with native
American plum species seem to do better in the East and Southeast,

Richard Ashton
Oak Creek Orchard

nafex mailing list

Reproduction of list messages or archives is not allowed.
This includes distribution on other email lists or reproduction on web sites.
Permission to reproduce is NEVER granted, so don't claim you have permission!

Posts from email addresses that are not subscribed are discarded.
No exceptions.
To subscribe or unsubscribe, go to the bottom of this page (also can be used to change other email options):

File attachments are NOT stripped by this list.
Please do not send binary files.
Use plain text ONLY in emails!

NAFEX web site:

Archive powered by MHonArc 2.6.24.

Top of Page