Re: HYB: question - heredity of rebloom?


Thanks Pierre.  Yes, I think I understand everything you wrote.

If C is correct, that also helps explain different rebloom behavior -
different climatic thresholds in different cultivars as well as
different rebloom behavior of the same cultivar in different climates.

I hear over and over that continuous bloomers will bloom once the
rhizome is mature enough, but do not see that happening here during our
tropical summers (humidity 100% at night and high all day, often raining
every day and temperatures above 70oF at night).  Once night time
temperatures cool a bit and humidity goes down <if> we also are getting
adequate rainfall, then stalks start forming.

My intuition is that it would be 'easier' to get everblooming seedlings
<if> the same everblooming cultivar is the grandparent on both sides.
Or at least grandparent cultivars from the same bloodlines (same source
of rebloom 'package' of genes, whether absence or presence of particular
genes).

But I have no experience to know if that is true.

--
Linda Mann east Tennessee USA zone 7/8
East Tennessee Iris Society <http://www.korrnet.org/etis>
American Iris Society web site <http://www.irises.org>
talk archives: <http://www.hort.net/lists/iris-talk/>
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online R&I <http://www.irisregister.com>

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