North American Fruit Explorers mailing list at ibiblio

["MARIE ASHTON" <bwoodtx@verizon.net>]

You know that Luther Burbank (the father of fruit genetics) believed that 
the way to get apricots that would produce fruit in late frost areas was to 
try to use more cold hardy bloom and fruiting plants such as Loquats and 
cross them back until you got the cold hardiness of bloom into the apricot 
genes. He never was able to do that but he did produce the plumcot in the 
process of trying to get more cold hardy apricot blooms/fruit. Just an 
interesting story.

There are definitely more cold hardy bloom/fruit apricot varieties.The 27 
degree figure I gave is just a general rule for most varieties.  Jerseycot 
being one of the more cold hardy bloom varieties because of one of its 
central Asian parents. In general central Asian apricots have more cold 
hardy blooms/fruit than most American varieties.

Regards,
Richard Ashton
Oak Creek Orchard
www.oakcreekorchard.com
bwoodtx@verizon.net

----- Original Message ----- 
From: "Mark & Helen Angermayer" <hangermayer@isp.com>
To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
Sent: Tuesday, March 27, 2007 11:43 PM
Subject: Re: [NAFEX] Delayed blooming - NOT


> Richard,
> You know more about cots than I do, and I am just repeating what I've been
> told.  Bob Purvis indicated he had a Jerseycot in his yard that bore 52 
> ripe
> cots after a 23F frost May 3, 2005.  He is very high on the cultivar.  For
> the last 20 years Jerseycot has fruited 90% of the time in New Jersery.
> He's also very optimistic on the new Sugar Pearl (another New Jersey
> release).  He said it handled fluctuating winter temps far better than
> Harglow in 2004-2005.
>
> Bill, don't give up on apricots.  If Bob Purvis can grow them north of
> you (Minnesota) and they can be grown south of you in Kansas (Goldcot 
> fruits
> about every three years in Kansas), they might be worth a go.  Just be
> careful in cultivar selection, and as Richard says, pick the late blooming
> ones.
>
> God bless,
> Mark
> Kansas
>
> ----- Original Message ----- 
> From: "MARIE ASHTON" <bwoodtx@verizon.net>
> To: "North American Fruit Explorers" <nafex@lists.ibiblio.org>
> Sent: Tuesday, March 27, 2007 9:06 AM
> Subject: Re: [NAFEX] Delayed blooming - NOT
>
>
> > As an average it takes about 27 degrees F or less to kill the blooms/
> fruit
> > in Apricots. The exact temperature depends on what stage the blooms/fruit
> > are in. The lenght of time at the 27 degrees can be as little as an hour.
> > The longer the time the more that will be killed. Sometimes even if it
> gets
> > to 27 there may be a few buds that have not opened or some protected 
> > fruit
> > that come through. At 25 degrees F you can forget the crop.
> >
> > Maybe the weather will cooperate this year.
> >
> > Regards,
> > Richard Ashton
> > Oak Creek Orchard
> > www.oakcreekorchard.com
> > bwoodtx@verizon.net
> >
> > ----- Original Message ----- 
> > From: "William C. Garthright" <billg@inebraska.com>
> > To: "NAFEX List" <nafex@lists.ibiblio.org>
> > Sent: Tuesday, March 27, 2007 6:58 AM
> > Subject: [NAFEX] Delayed blooming - NOT
> >
> >
> > >I was asking about ways to delay blooming earlier, and one reason was
> > > the dwarf Goldcot apricot I planted last spring. To my surprise, it's
> > > been blooming like crazy the last couple of days. Really beautiful! I'd
> > > never even SEEN an apricot tree before planting this. There were bees
> > > working the flowers yesterday, too, though almost nothing else is
> > > blooming around here (some forsythia, is all).
> > >
> > > However, it's only March! I knew they bloomed early, but... this early?
> > > It's been warmer than normal for almost three weeks. The last four 
> > > days,
> > > the high has been 80 degrees, with lows in the low 50's. Our average
> > > high for this time of year is 55; the average low is 31. And the 
> > > average
> > > frost-free date is a month and a half away.
> > >
> > > Well, the tree has done really well, but I never expected to get
> > > apricots this year, so I didn't even try to delay blooming. And I don't
> > > expect to get apricots every year - most years? - anyway, in this
> > > climate. But can anyone tell me how cold it would have to get to kill
> > > the flowers or developing fruit? Just curious. It's supposed to cool 
> > > off
> > > a bit, but still stay above average. They're not forecasting a freeze 
> > > in
> > > the next week, anyway.
> > >
> > > Thanks,
> > >
> > > Bill
> > > Lincoln, NE (Zone 5a)
> > >
> > > -- 
> > > Politicians should read science fiction, not westerns and detective
> > > stories. - Arthur C. Clarke
> > >
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