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

HYB:Comparison of Time Zone and Clarence

  • Subject: [iris-photos] HYB:Comparison of Time Zone and Clarence
  • From: "Neil A Mogensen" <neilm@charter.net>
  • Date: Wed, 1 Dec 2004 11:18:42 -0500

There are five good photos of CLARENCE that are brought up by a search of Iris-photos for "Clarence" --but none if the search order is "photo 'Clarence'"---
In any event, the photos examined include those posted by Sandra Barss, Gina Sideris, LaurieF, T. Greaves and Lloyd Zurbrigg himself--a clump view.
The one with the strongest color contrast is that from farthest north--Barss' photo.  That may be consistent with some research on possible anthocyanin pigment development in relation to temperature, but has no bearing on the question of zonal vs. luminata.
In each of the photos there is a fairly wide zone of feathering between the white and the anthocyanin, but in only one is there the slightest suggestion of pattern.  On one photo only is there a scattering of white dots in the solid area with no apparent arrangement--possibly an artifact of the reproduction process.
In the standards, however, the presence of anthocyanins, although faint, do show an effect suggestive of luminata.  The penetration of anthocyanin synthesis through the I(s) dominant amoena factor is quite normal at lower dosage levels.  In some amoena-plicatas the plicata pattern is richly expressed in the fall,  and weakly, but definitely, in the standards.  MONOLOGUE is an example of this. 
I say "suggestive" above since the anthocyanins in the standards are very weakly expressed and only show in some of the photos, probably of the most freshly opened blooms.  In others the standards appear completely white.
The zone of transition is like that of TIME ZONE, but broader.  I would have to come down on the side of amoena-zonal based on this, as there is not the slightest suggestion of luminata light vein, darker inter-vein patterning in the solid area.
Neil Mogensen  z 7 western NC mountains

Yahoo! Groups Sponsor
click here
Web Bug from http://us.adserver.yahoo.com/l?M=298184.5639630.6699735.3001176/D=groups/S=:HM/A=2434971/rand=192834603

Yahoo! Groups Links

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

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