Re: [RE: [SR - CA again]]
- To: s*@onelist.com
- Subject: Re: [RE: [[sibrob] SR - CA again]]
- From: R* H*
- Date: 5 Feb 00 19:02:10 PST
From: Robert Hollingworth <Cyberiris@netscape.net>
Bill and Christy -- I agree with you that microenvironment must explain the
differences in rebloom between two plants of the same cultivar showing
strongly different amounts of rebloom when growing near each other. In the
case of CA at least it isn't pod set, since, like most tets, it doesn't set
many, if any, bee pods. There are also a "macroenvironmental" factors working
in my experience since we get "good" and "bad" years for rebloom with rather
more of the latter. Once in a while some degree of rebloom occurs on maybe
50-60 irises out of the several thousand we have growing (this is i a good
year) and these are scattered across two gardens separated by six miles. In a
bad year less than 10 of these plants may show any rebloom. It's really crazy.
Last year one yellow amoena seedling had an explosion of rebloom -- looked
awesome. One of its sibs had a few and the other dozen or so sib seedlings in
the same row had none, even though they were equally husky. If this happened
every year (let's hope!) it would be a real find, but past experience
indicates the need for great wariness. Chances are it won't happen again on
this plant again this year. What's really needed is some good experimentation
in which a number of reputed reblooming irises are compared for several years
under growing conditions that are as similar as we can make them -- even using
some kind of statistical design to ensure randomness of distribution in
several blocks. Good weather and growth records should be kept as well as
first and rebloom counts. Sounds like quite a bit of work, but maybe that
would help provide some answers and clues about what governs rebloom. Even
better if it could be replicted in several parts of the country. Anyone want
to try? Nice sunny day and some thawing. Icicles four or five feet long
hanging from the roof overhang as the melt refreezes (we don't have gutters)
make it look like an ice palace with the sun sparkling on them. Winter isn't
all bad. Bob
"J.F. Hensler" <hensler@povn.com> wrote:
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Bill,
Have a hunch you might be onto something!
As far as two cvs of the same name growing beside each other, they will
*not* be identical. I tend to think along the lines of microclimate, so
even if they have the same number of fans and are of the same cv, small
differences in root systems, amount of daylight, and proximity to other
species can alter conditions enough to change growth patterns.
One more thing you might consider adding to the list is pod set. If pods
are set during the first bloom, does it noticeably alter rebloom? What
percentage of pod set might even be a factor...
Christy Hensler
Spring is here in spite of 5" of snow! First lamb 2 days ago and it looks
like more will be making an appearance this morning. :)
----------
From: William C. Dougherty
Sent: Tuesday, February 01, 2000 8:05 PM
To: INTERNET:sibrob@onelist.com
Subject: Re: [[sibrob] SR - CA again]
From: "William C. Dougherty" <103225.2126@compuserve.com>
Macroclimatically both plants experienced the same
conditions? Microclimatically did the plants experience the same
conditions? Did they both receive the same cultural requirements? Same age?
etc.<<
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