Tim, Dr. Keith Hammett in New Zealand has done some breeding with tree dahlias. If I remember right, D. tenuifolia is the only species of tree dahlia that has the right chromosome count to (without embryo rescue, anyway) cross with D. coccinea (and, I'm inferring, D. x hybrida/cultorum/variabilis). -joe On Mon, Oct 30, 2023, 1:15 PM Tim Eck via pbs < pbs@lists.pacificbulbsociety.net> wrote: > I have a friend who recalled my mention of the PBS tree dahlia discussion > and she asked if anyone would be able to donate some pollen for her dahlia > breeding. > She is trying to breed for the cut flower trade with long stems. > Admittedly, this might be overkill. > Thanks > Tim > _______________________________________________ > pbs mailing list > pbs@lists.pacificbulbsociety.net > https://lists.pacificbulbsociety.net/cgi-bin/… > Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> > PBS Forum latest: > https://pacificbulbsociety.org/pbsforum/index.php/… > _______________________________________________ pbs mailing list pbs@lists.pacificbulbsociety.net https://lists.pacificbulbsociety.net/cgi-bin/… Unsubscribe: <mailto:pbs-unsubscribe@lists.pacificbulbsociety.net> PBS Forum https://…