Tetraploid Arils


Lowell writes:

>Are the tetraploid arils you are hybridizing with exclusively the naturally
occuring regelias or are you also using the colchicine (sp?) induced
oncocycli?

Most are  RCs & OGs.  They include both those obtained via what John Holden
dubbed the "Triploid Route" and those descended from colchicine-induced
tetraploids.  I don't use any of the colchine-induced clones themselves (I don't
think any of them were ever distributed because of their possible instability).
I do sometimes use the naturally-occuring regelias (primarily in my
crosses-for-information-not-introductions) and would use them more if my climate
were more suitable.

Sharon




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