RE: CalSibe fertile tetraploids
- To: Multiple recipients of list <i*@rt66.com>
- Subject: RE: CalSibe fertile tetraploids
- From: T* H* <T*@css.mot.com>
- Date: Thu, 19 Feb 1998 08:50:53 -0700 (MST)
Thank you for the citation. Do you know if Mr. Tamberg sell any of his
cultivars? or how he might be contacted?
Thanks Tim Hall
>-----Original Message-----
>From: Jeff and Carolyn Walters [SMTP:cwalters@digitalpla.net]
>Sent: Thursday, February 19, 1998 9:10 AM
>To: Multiple recipients of list
>Subject: Re: CalSibe fertile tetraploids
>
>Bill,
>
>Here is a direct quotation from Currier McEwen's "The Siberian Iris":
>
>"In 1976 Tomas Tamberg of Berlin, Germany treated sterile diploid seedlings
>from a cross of his 40 chromosome Siberian iris 'Berliner Riesen' by Iris
>fernaldi of the series Californicae with colchicine. Three seedlings were
>converted to the polyploid state and proved fertile when crossed with each
>other (Tamberg, 1990). . . Tamberg has continued this line of breeding with
>fertile Calsibe seedlings, and many beautiful flowers of this type have
>been achieved (Plate 35). The tetraploid Calsibes are fertile with each
>other, producing fetile tetraploid seedlings. They also backcross
>successfully with 40 chromosome Siberians and with tetraploid Californicae,
>but the resulting seedlings are sterile . . ."
>
>(The citiation in the text above is to Tamberg, T. 1990. Approaches to
>hybridizing. British Iris Society 1990 Yearbook: 77-82).
>
>Jeff Walters in northern Utah (USDA Zone 4, Sunset Zone 2)
>cwalters@digitalpla.net
>
>
>----------
>> From: Bill Shear <BILLS@hsc.edu>
>> To: Multiple recipients of list <iris-l@rt66.com>
>> Subject: Re: CalSibe sources
>> Date: Thursday, February 19, 1998 7:42 AM
>>
>> >"Tomas Tamberg is working with polyploid state and it has proved
>fertile.
>> > Calsibes are fertile/each other, producing fertile tetraploid
>seedlings. But
>> >Tamberg has very ratrely obtained a viable seed from such crosses but
>> >seedlings grow vigorously but sterile."
>>
>> Huh? Say again?
>>
>> Bill Shear
>> Department of Biology
>> Hampden-Sydney College
>> Hampden-Sydney VA 23943
>> (804)223-6172
>> FAX (804)223-6374
>> email<bills@hsc.edu>
