Segregation of Fall-flowering Progenies Derived from Interspecific Crosses between Rhododendron kiusianum Makino and Related Evergreen Azaleas

Abstract

Inheritance of fall-flowering character was investigated among progenies of interspecific crosses between evergreen azaleas. The frequency of fall-flowering seedlings was high in the crosses with Rhododendron kiusianum Makino, irrespective of cross direction. R. kiusianum is a valuable parent to give crossing opportunity twice a year.