hort.net Seasonal photo, (c) 2006 Christopher P. Lindsey, All Rights Reserved: do not copy
articles | gallery of plants | blog | tech blog | plant profiles | patents | mailing lists | top stories | links | shorturl service | tom clothier's archive0
Gallery of Plants
Tech Blog
Plant Profiles
Mailing Lists
    Search ALL lists
    Search help
    Subscription info
Top Stories
sHORTurl service
Tom Clothier's Archive
 Top Stories
New Trillium species discovered

Disease could hit Britain's trees hard

Ten of the best snowdrop cultivars

Plant protein database helps identify plant gene functions

Dendroclimatologists record history through trees

Potato beetle could be thwarted through gene manipulation

Hawaii expands coffee farm quarantine

Study explains flower petal loss

RSS story archive

Re: Re: HYB: Daylight independent

A really nice white rebloomer that should work better than Immortality is 
another of Lloyd's called CHASTE WHITE. Winterberry's sent it to me as an 
extra in 2003 and recommended it for hybridizing. I don't have it in a very 
good place and don't know much more than that about it since it only bloomed 
once. Does anyone else have this who could tell us more about its worth as a 
parent? Linda, you had this in 2005.

-- Barb, who is having trouble getting her posts through!
Near Springfield, SW Missouri, USA

----- Original Message ----- 
From: <irischapman@aim.com>
To: <iris@hort.net>
Sent: Monday, February 18, 2008 2:21 PM
Subject: [iris] Re: HYB: Daylight independent

|I too had hopes of combining the Forever Blue and Immortality  traits
| together. Thus the cross. Alas it just didn't work.  Immortality is a
| notoriously poor parent and it's weakness, lack of substance just
| doesn't combine well with FB's narrow petals. The seedlings did gett he
| worst of each, once locked into this, future generations of this line
| would be more of the same. Wet tissue paper on a stick that blooms
| forever just does not have a future, even for those that like form
| variations. Of couse  I tried anyway, but these IBs are very poor at
| setting seed.
| My rebloom work is for good rebloom in cold climate, so how well it
| does somewere else has no interest for me. Ruby Eruption is an
| exception to this, as it has such excellent form. The fact that it is a
| rebloomer in warmer climates increases it's potental as a parent, which
| was high to start with.
| FB just does not rebloom in crowded clumps. I would suggest that you
| must have very rich soil to get the crowded clumps to keep blooming. My
| crowded clumps of Immortality just does not do that.  I would kindly
| suggest that what you have is  bunch of older rhizomes that are not yet
| up to bloom size  but have been triggered by spring sunlight and bloom
| when the size trigger has been reached. Already firing pin cocked by
| the lenght of day and triggered pulled when rhizome size reaches
| appropriate size.  If you had young  small rhizomes that did that
| (without having had winter estivation), it would be more convincing.
| I have grown Immortality here for many many years. Many old crowded
| clumps and lots of freshly planted ones. All the same, bloom end of
| May, rebloom Mid August. No signs that  would convince me that it is
| daylight independent.
| Chuck Chapman
| Date: Mon, 18 Feb 2008 07:38:34 -0500
| From: Linda Mann <lmann@lock-net.com>
| Subject: [iris] Re: HYB: Daylight independent
| Chuck, it took a lot of attempts before I was able to get IMMORTALITY
| to
| survive here.  The attempt that was finally successful consisted of
| planting about half dozen rhizomes in several different locations
| (varying soil and microclimate).
| As a result, there are 6 thriving, fairly large colonies of IMM here,
| each of which usually sends up more than one bloomstalk.  I do not dig
| and reset any of my plants (except to rescue/line out seedlings), just
| thin them out to take donations to club rhizome sales.
| As a result, these clumps consist of rhizomes of all sizes and ages.
| They send up stalks at various times until temperatures get too hot
| (not
| sure how hot).  Earliest stalks are usually badly damaged by late
| freezes, sometimes frozen out completely, but they are still there.
| Bloom stalks therefore are coming up from about the time the SDBs are
| blooming until the very latest of all the oncers.  These clumps also
| send up stalks any time summer temperatures are cool enough to trigger
| them.
| I'm not suggesting that the <genetics> of rebloom in FOREVER BLUE and
| IMMORTALITY are the same - your data seem to prove that isn't the case.
|   But my experience with IMM is that bloom is daylight independent as
| long as temperatures are cool enough.
| Do you know what the stalk to fan ratio for FOREVER BLUE and
| is in your growing conditions?  The stalk to fan ratio for IMM is
| really
| low here - I'd guess 1 stalk for 10 fans. Or worse.
| Point I'm trying to make with all this rambling is that maybe your IMM
| X
| FOREVER BLUE seedlings would have proved to be daylight independent if
| you'd grown them to enormous clumps.
| Not exactly a desirable trait!  IMM can certainly produce a lot of
| babies with weedy foliar growth and few bloom stalks.
| And I'm not sure what the physiology might be.. implies slow/impaired?
| maturation of rhizomes to blooming size.
| ?
| - --
| Linda Mann east Tennessee USA zone 7/8
| East Tennessee Iris Society <http://www.DiscoverET.org/etis>
| Region 7, Kentucky-Tennessee <http://www.aisregion7.org>
| American Iris Society web site <http://www.irises.org>
| talk archives: <http://www.hort.net/lists/iris-talk/>
| photos archives: <http://www.hort.net/lists/iris-photos/>
| online R&I <http://www.irisregister.com>
| ------------------------------
| Date: Mon, 18 Feb 2008 10:01:04 -0500
| From: autmirislvr@aol.com
| Subject: Re: [iris] Re: HYB: Daylight independent
| <<Point I'm trying to make with all this rambling is that maybe your
| IMM X FOREVER BLUE seedlings would have proved to be daylight
| independent if you'd grown them to enormous clumps.>>
| ?
| Linda has a valid point here.? Rebloom traits do not always show up in
| that first dozen or so fans that form in the hybridizer's garden.?
| So far Summer Radiance has never fall bloomed for me; however, it has
| done so for both Robin Shadlow(NE) & Mike Lockatell (VA).? It likes
| both their gardens better than mine!? It bloomed in late June or early
| July in the display garden in Bowling Green but, to my knowledge, it
| never fall bloomed.? I introduced it in 1996 and?didn't heard of this
| trait until a couple of years ago.? It was always just a REPEAT
| bloomer.? However, the repeat is usually about 50-60 days from the
| beginning of it's spring bloom.?
| It's quite possible that the FOREVER BLUE X IMMORTALITY seedlings might
| summer bloom in zones 6 or 7.? My typical TB bloom season, in my
| garden, is the third week of April through the third week of May.? Give
| or take.? Starts with rebloom seedlings and plicatas and works through
| the late ones like Breaking News, Nehalem Bay (both reported CA
| rebloomers) and Candy Clouds (carrier with Holday Lover in linage)
| finishing up the late season.?
| I've had TB stalks in?April, May, June, July, August, September,
| October, November and December.? Not all at the same time, or even in
| the same year.? Just in the same garden.? (2004, 2005 & 2006)? ?
| Is the difference in the genes or the modifiers??
| Part of the mystique of rebloom is that all gardens are not created
| equal!?
| Betty Wilkerson/south central KY/Zone 6?
| "Only those who dare to dream, can make a dream come true"??
| ________________________________________________________________________
| More new features than ever.  Check out the new AIM(R) Mail ! -
| http://webmail.aim.com
| ---------------------------------------------------------------------
| To sign-off this list, send email to majordomo@hort.net with the
| message text UNSUBSCRIBE IRIS

To sign-off this list, send email to majordomo@hort.net with the

Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index

 © 1995-2017 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement