Chilling Resistance is not Transmitted Sexually in Plants Regenerated from Nicotiana sylvestris Cell Lines

Fertile plants were regenerated from three cell lines of Nicotiana sylues tris which had been selected for chilling resistan ce. All three lines belonged to a group exhibiting a low level of resistan ce. Tissue cultures initi ated from the sexual progeny of th ese plants, however, were shown to have no improved level of chilling resistance when compared to cultures derived from unselected control plants