Re: HYB: fall rebloom genetics
iris@hort.net
  • Subject: Re: HYB: fall rebloom genetics
  • From: B* W* <a*@aol.com>
  • Date: Sat, 30 Apr 2011 12:21:18 -0400 (EDT)
<<I can provide you with some formulas  that predict bloom based on warmth,
mount of daylength etc,  They are in the book "Manipulation of Flowering"
dited by Atherton.  But  basically I'm not sure they add much to a good
rediction.>>
>>Weather  webpages  such as weather underground, can give you daylength
nformation for various locals and dates.>>

Thanks Chuck,

I thought you might already have the information indexed.

I'll put this on my list for winter work.  For now, I already have more things
to do than I have time to do them.


Thanks for your input.

Betty W.



-----Original Message-----
From: Chuck Chapman <irischapman@aim.com>
To: iris <iris@hort.net>
Sent: Sat, Apr 30, 2011 11:11 am
Subject: Re: [iris] HYB: fall rebloom genetics


Somehow I doubt if day length make much difference in timing of spring bloom.
 suspect more temperature and time to grow a bloom stalk from trigger
emperature. And this will vary according to day temperatures.
A factor could very well be the carry over of  an immature  flower stalk from
all. One that started but  climate conditions  stopped growth, and flower
talk not  big enough to be bothered by lower temperatures.
When  you can get full bloom season in California in March, then  the day
ength that they get there  that triggers flower stalks will be the critical
aylength. The triggering will obviously be  a couple of weeks before a TB
ctually blooms.
Of course SDB will need less time to go from trigger to flowering.
So look at  daylenght in early March for California, and then check  when
your
aylength corresponds, and then check with your  bloom data.
I can provide you with some formulas  that predict bloom based on warmth,
mount of daylength etc,  They are in the book "Manipulation of Flowering"
dited by Atherton.  But  basically I'm not sure they add much to a good
rediction.
Weather  webpages  such as weather underground, can give you daylength
nformation for various locals and dates.
Chuck Chapman






--- Original Message ----
rom: Betty Wilkerson <autmirislvr@aol.com>
o: iris@hort.net
ent: Sat, Apr 30, 2011 10:27 am
ubject: Re: [iris] HYB: fall rebloom genetics

< Make note of these as they should be the ones
u use for "Summer rebloom"  Has to do with going directly from bud set to
owerstalk.>>
Chuck,
The "Summer Rebloomer" are ready to go as soon as the temperatures warm up.
he early blooms were on my 'All Revved Up' (it can bloom from frost to
rost)
nd 'Lunar Whitewash' followed by 'Matrix.'  Most seedlings showing hope for
ummer bloom were in this group also.
Fall cycle rebloomers depend on day length as a trigger.  The later ones
this
pring) are primarily fall rebloomers or so I thought--'Again & Again,'
Tara's Choice,' Theme Master,' 'Vanishing Act' etc..  In 2006 this group
loomed before anything else.  (typically do)
'Summer Radiance' has often been my first spring bloom, but this year it was
ay behind the earlier ones.  'Star Gate' gave an early stalk, some middle
talks, and there are two more that don't even show color yet.  SG is
ypically later than the rest with spring bloom.
'Over & Over' has been among my most dependable rebloomers, often blooming in
he summer.  It bloomed with the middle group.  Renown was between ARU group
nd the Tara's Choice group.  About normal for Renown.
Betty W.


----Original Message-----
rom: Chuck Chapman <irischapman@aim.com>
o: iris <iris@hort.net>
ent: Sat, Apr 30, 2011 8:20 am
ubject: Re: [iris] HYB: fall rebloom genetics

Linda has also noted this at times.  Most of these should be the summer
bloomers or as I call them the direct rebloomers.. they respond to a
mperature trigger. So most years are the first to bloom, but with differernt
ather  can sometimes be later. Make note of these as they should be the ones
u use for "Summer rebloom"  Has to do with going directly from bud set to
owerstalk.
huck Chapman


-- Original Message ----
om: Betty Wilkerson <autmirislvr@aol.com>
: iris@hort.net
nt: Sat, Apr 30, 2011 7:30 am
bject: [iris] HYB: fall rebloom genetics
he iris season has been weird here.
uring a typical spring season, most of the rebloomers begin in the first
ek
f iris season.)  This year, some of the "early birds" did not begin
ooming
til the second week and even later.
huck, is it possible that their bloom season is controlled by day length in
e spring as well as in the fall?  Thus they do not respond to an early
ason in the same way as the rest?
f not, is there another explanation?
etty W.
--------------------------------------------------------------------
 sign-off this list, send email to majordomo@hort.net with the
ssage text UNSUBSCRIBE IRIS
--------------------------------------------------------------------
 sign-off this list, send email to majordomo@hort.net with the
ssage text UNSUBSCRIBE IRIS
---------------------------------------------------------------------
o sign-off this list, send email to majordomo@hort.net with the
essage text UNSUBSCRIBE IRIS
---------------------------------------------------------------------
o sign-off this list, send email to majordomo@hort.net with the
essage text UNSUBSCRIBE IRIS

---------------------------------------------------------------------
To sign-off this list, send email to majordomo@hort.net with the
message text UNSUBSCRIBE IRIS
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index