A. T. PUGSLEY
Department of Agriculture, Agricultural Research Institute Wagga Wagga, N. S. W.
During the past ten years the resistance of the amphiploid Iumillo x Aegilops squarrosa to Erysiphe graminis tritici has been transferred to the Australian bread wheat Javelin. Five backcrosses were carried forward and at the same time one resistant selection was made having red grain colour in contrast to the white grain of the recurrent parent Javelin.
In 1959 near-isogenic lines of white and red grain colour were compared in order to determine if seed dormancy was associated with grain colour differences. Seed harvested at the late dough stage was set out to germinate immediately and after holding in the laboratory for eight days. The following results clearly indicate that dormancy was associated with red grain colour:
