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
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

Unauthorized use of a plant doesn't invalidate it's patent

RSS story archive

Re: TC and OS

Jim Hawes wrote:
> >
> > Hosta Friends and Ran,
> >
> > Ran, you reacted to my post as though what I was saying was a
> > philosophical argument rather than scientific statements of fact. In
> > effect, you summarized my post approximately as follows:
> >
> >    Say what you will, two problems still remain...
> >
> >      1.The Perennial Growers Association doesn't agree with
> > your               position on what tc really is and
> >
> >      2.Because of the carelessness in culling, one can be sure most
> > of        the time with OS. ( I have paraphrased for simplicity)
> >
> > Frankly, I do not follow the logic of your comments. I have been talking
> > specifically about technical aspects of TCing Hostas. I have seen no
> > rebuttal from anyone about the technical comments I have made. I am not
> > in an argument with the Perennial Growers Association. They don't even
> > know my thoughts on TCing Hostas, nor would they care about my position,
> > nor would I care about theirs. My post was an attempt to dispell some
> > mis-statements made about the demerits of TC Hosta  plants. If anyone
> > wishes to discuss what I have stated, I would be willing to go into the
> > discussion in further detail. So far, no one has done this. Instead my
> > comments have been dismissed out of hand by you because they do not
> > correspond with views of the Perennial Growers Association.
> >
> > I will make the case again, more clearly and with different wording.
> >
> > Because Hostas are unique in their ability to produce chimeras
> > (variegated sports)  spontaneously, both in the garden and in tissue
> > culture, an understanding of the reasons for the large numbers of
> > chimeras is necessary to prevent any possible excess. These chimeras
> > will occur because of the unique manner in which they readily arise from
> > meristems. This is beyond human control. I admitted in my posts that
> > there is a need to understand the principles involved in the origin of
> > bud sports. I also suspect that there are few TC lab operators who fully
> > understand the principles involved. I am not talking about green
> > perennials in general. I am talking specifically about TCing chimeral
> > Hostas. If variegated hostas in tissue culture develop sports, OF COURSE
> > they must be selected out if uniformity is desired.This was part of my
> > "position" as expressed in my previous posts. I don't think you read my
> > statements carefully.
> >
> > I have attempted to make the case that TC plants are identical to OS
> > plants genotypically and phenotypically IF NO SPORTS OCCUR! I have seen
> > no logical arguments or proof that my statements are incorrect. I
> > continue to say what I have said and I invite anyone to disprove what I
> > have said.
> >
> > Jim Hawes Oakland MD
> > hawesj@gcnet.net

To sign-off this list, send email to majordomo@mallorn.com with the

 © 1995-2015 Mallorn Computing, Inc.All Rights Reserved.
Our Privacy Statement
Other Mailing lists | Author Index | Date Index | Subject Index | Thread Index