Bract primordium differentiation starts (differentiation of the panicle begin
Primary rachis-branch primordium differentiation starts
Secondary rachis-branch primordium differentiation starts
Glumous flower primordium differentiation starts
Stamen and pistil primordium differentiation starts
Pollen mother cell differentia- tion occurs
Meiosis stages in anthers Pollen contents enrichment stage
8-nucleus stage of the embryo sac
Flower organs completed developed morphologically
Anthesis (pollen shedding)