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:embryo rescue

I suspect that RHYTHM and or LITTLE FREAK may be diploid.  Does anyone know for sure?
  I was digging around in the archives trying to find any mention of sucessful tetraploid X diploid crosses and stumbled upon mention of something called "embryo rescue". 
  It seems that the endosperm of a seed is created through a genetic process which is seperate from the process that creates the embryo itself.  This means that a genetically viable embryo may be sabotaged in its quest for germination by a genetically inviable endosperm.  These seeds are characteristically the ones that collapse, which is what all of my seeds from LF or R have done.  (ever so much more frustrating since they both set a pod if you look at them crosseyed.)
  Anyway, there is an embryo rescue technique which might be manageable in a home environment... I think.  Basically, you harvest really early, cut the pod into little discs and lay the discs in a petrie dish with 'nutrient agar'.  From there I'm a bit cloudy.  It seems like you would still have to proceed with your cold stratification.  In my refrigerator healthy seeds get all moldy- and nutrient agar is intended to grow molds for kids science projects- so how, I wonder, would I keep from just growing molds?  There must be something I missed.  All the websites I looked at were either someone's doctoral thesis, or for the fourth grade science fair.
  i think I may put in a call to the county extension office....
 Get on board. You're invited to try the new Yahoo! Mail Beta.

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