[NAFEX] Delaying blooming/breaking dormancy

Brungardt, Sam Sam.Brungardt at state.mn.us
Fri Mar 23 17:10:46 EDT 2007


Here are the chill hours for the AU plums:
700 hr.: AU-Roadside, AU-Rubrum, AU-Rosa, AU-Cherry
750 hr.: AU-Producer
700 to 800 hr.: Au-Amber
Couldn't find the chill hr. for AU-Homeside, but it's probably 700 to
800. -- Sam Brungardt, St. Paul, Minn.

-----Original Message-----
From: nafex-bounces at lists.ibiblio.org
[mailto:nafex-bounces at lists.ibiblio.org] On Behalf Of Donna &/or Kieran
Sent: Friday, March 23, 2007 8:49 AM
To: North American Fruit Explorers
Subject: Re: [NAFEX] Delaying blooming/breaking dormancy


I've read of putting gallon jugs of water in the freezer, then in warm 
weather putting them around the base of a tree, covering with sawdust to

keep them cool.  Haven't tried it, but it's supposed to work.  You could
try 
one tree and let us all know if it blooms later than another one like
it.  I 
just bought some 1,000 hour peaches, and looking at the seedling trees I

have blooming already, wondering how many chilling hours we've had.
Anyone 
know chilling hours on AU Amber and some of their others?  I just
planted AU 
Rubrum and Rosa down in a hole where the wind won't get them, in hopes
of of 
getting more blooms through the spring, in exchange of course for more
brown 
rot on the fruit.  (I'd like the luxury of having a crop to lose some
of)  I 
don't think Bill is going to find a slope to plant his trees on in
Nebraska 
though.....
    Oh, there was that POMONA article where someone on the prairie said
to 
let your peach trees go ahead and grow straight up like they want to.
He 
said a lot of his spring freezes were convection freezes, full moon
type, 
and that everything below the 8 ft mark froze.  That's EASY to try, just
put 
down your pruners.     Donna 

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