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Re: Re: HYB: fall cyclic from IMM (was 06-48ARE Debrenee X Immortality
  • Subject: Re: Re: HYB: fall cyclic from IMM (was 06-48ARE Debrenee X Immortality
  • From: irischapman@aim.com
  • Date: Sun, 20 Dec 2009 11:02:04 -0500


There isn't a list of cultivars.

Summer rebloomers, are recessive
Whenever Rebloomers are recessive
Fall Cyclic act as dominant
"FacilitativeVernalization" rebloomers  unknown

Summer rebloomers are those that rebloom directly after flower bud set. This occurs when a mature plant receives three days in a row with minimum temperatures betwen 16-21C.  (61-70F) Examples  Immortality., Queen Dorothy

Fall Cyclic are those that rebloom in fall on mature plants, when night times become long enough to trigger bloom. Examples, Victoria Falls, Autumn Bugler, Hot, Autumn Embers

Whenever Reblomers bloom whenevert plant reaches maturity. Examples are Forever Blue, Autumn Jester, Blueberry Tart, Wizzard of Hope

"Facilitative Vernalization" rebloomers are those that rebloom after an extended time at maturity in good growing weather. the ones that rebloom only in cool summer areas of Texas and California and nowher else, except in rare circumstances. Crystal Glitters is an example of this type.

Chuck Chapman

-----Original Message-----
From: J. Griffin Crump <jgcrump@cox.net>
To: iris-photos@yahoogroups.com
Sent: Sun, Dec 20, 2009 8:01 am
Subject: Re: [iris-photos] Re: HYB: fall cyclic from IMM (was 06-48ARE Debrenee X Immortality


Chuck  --  This is interesting.  Do any lists exist of known recessive and dominant rebloomers?  --  Griff
----- Original Message -----
Sent: Saturday, December 19, 2009 9:39 PM
Subject: Re: [iris-photos] Re: HYB: fall cyclic from IMM (was 06-48ARE Debrenee X Immortality

My point is that with Immortality X cyclic rebloomer, Immortality does not add any potential to rebloom that can't be gotten with any vigourous strong growing plant. Even oncers.  Plants with much better characteristics, giving a much higher proportion of quality seedlings.  And just as high a percentage of cyclic rebloomers. More product with less work.

This is because cyclic rebloom genes are dominant. The summer rebloom genes in Immortality are recessive, and will only produce a summer rebloomer if matched with other summer rebloomers. The rebloom factor in Immortality is irrelevant in a cross with a cyclic rebloomers

1)  Cyclic Rebloomers X vigorous plants = cyclic rebloomers
2) Summer rebloomers X vigorous plants =  all oncers (unless they are carriers of summer rebloom genes)
3) Cyclic rebloomers X Summer rebloomers =  cyclic rebloomes (same proportion as #1)
4) Immortality X Cyclic rebloomers = cyclic rebloomers (same as #1 & #3)  but with a small proportion of quality plants.

Chuck Chapman

-----Original Message-----

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