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Re: HYB: Harvest of Memories genetics

  • Subject: Re: HYB: Harvest of Memories genetics
  • From: Bill Chaney <billchaney@ymail.com>
  • Date: Sat, 15 Aug 2009 19:53:12 -0700 (PDT)

Hi Chuck,

I am enjoying your posts and admire you for the work you are doing.
Are your articles on rebloom triggers on-line somewhere or in the archives so
that I can look them over?  That 05-B15-d seedling looks good.  I hope it
proves vigorous and fertile!


From: "irischapman@aim.com" <irischapman@aim.com>
To: iris@hort.net
Saturday, August 15, 2009 7:13:11 PM
Subject: [iris] HYB: Harvest of Memories

I wouldn't judge type of rebloom right now.

So far this year I have
had 4 SDB bolom, that have not seen a winter. They were grown under lights
during winter.

I'm thinking that there is a fourth type of rebloom. This is
Facilitative bloom. May not necesaarily be rebloom.

To back up a few steps,
there are two types of  bloom  triggered by vernalization. The one is called
"Obligate" vernalization. This type of plant must have vernalization in order
to bloom. Obligate = obligatory
The other type is called "Facilitative" This
is where vernalization facilitates bloom. So when plant has under gone
vernaliztion it blooms in spring. When it doesn't get vernaliation, it will
bloom later in growing season, usually after getting a period of warm weather
as a mature plant. Thus vernalization "facilitites" bloom.

Thus these plants
can bloom without having gone through vernaliztion. I suspect that some late
Season "rebloomers" in California may be of this type. As are these seedlings
that bloomed without having experienced a winter.

I don't know what genetics
of this is, but I'm marking all seedlings blooming this way so I can cross
them to evaluate genetic composition and interaction. I suspect that by the
time winter comes I will have marked a fair number of them. They are now
popping up every few days.

Some of my seedlings doing this have rebloom
genes, some don't. But since over half of this bunch of  seedlings have
rebloom genes, it may or not be relevant. I'm suspecting it may not be
relevant. I have gotten this from plants with no rebloom genes and have had it
reported to me  by other s from plants with no rebloom genetics.

PS I send
some plants to you in mail this am. Expect them early this week. Mon or Tues.
Let me know when they have arrived.

pps: A proffesor at a university has read
my articles on rebolom triggers and will be doing some controlled studies
based on them.

Chuck Chapman

Date: Sat, 15 Aug 2009 06:40:37 -0400
Linda Mann <lmann@lock-net.com>
Subject: [iris] HYB: Harvest of Memories

Anybody know if HARVEST OF MEMORIES has been reported to "summer"
anywhere?  It's 100% cycle rebloomer here.

So far, one of seven
seedlings from HoM X RENOWN has a "summer" stalk,
which is pretty close to 1
in 6 ratio.

If I understand and remember what you've been saying, Chuck, that
implies HoM is half "summer" rebloom.  RENOWN isn't a consistent
bloomer, but has summer bloomed at least once here.

Assuming this is really
summer bloom and not just a seedling showing off
for maiden bloom.

winter's batch of seedlings included a few crosses mostly just to
try to
learn/understand heredity/expression of summer rebloom under
conditions here in the vale.  So far, this is the only one to
send up a stalk.
IMM X MATRIX cross doesn't have much strength, so may
not learn much from that

Linda Mann
east TN

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