North American Fruit Explorers mailing list at ibiblio

[Ed Fackler <ed.fackler@gmail.com>]

Betsy and others:

     Many apples will produce flowers on one year wood.  For that matter this (perhaps more than anything except hail damage) is the primary cause of fireblight.  Or these secondary blooms occur much later than primaries (on spurs mostly) and temperatures are generally much warmer when secondaries bloom, hence the transmission of fireblight occurs more readily (due to higher temps and more rapid growth).  

Ed.....great year so far here....S. Ind.   lots of apricots on Sugar Pearls, plums on Fr. Petite, AuRubrum and Toka, flat peaches and blueberries.  Initial thinning has been done, but I'm sure I'll have to do it again.

On Wed, Apr 28, 2010 at 1:42 PM, <Hilborn.E@epamail.epa.gov> wrote:

 "The late Professor Elwyn Meader once sent me a red flesh apple from
Nels Hansen which is probably a selection of Malus  Niedzwetzkyana.
One striking feature is it's ability to bear on one year wood.  Not
just a flower or a fruit  here and there, but clusters at every bud.
Since it's from Siberia, I assume that  ability is a reproductive
strategy to allow it to bear quickly if a cold winter kills back limbs.
                Has anyone noted this trait in other apple varieties or
species?"

Lon,
I believe my Liberty apple is flowering on new wood.  It has only been
in the ground 1 year, and all of the new growth tips are flowering.
Whether it will actually bear this year is another story....

Betsy Hilborn
7a NC

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