Wheat sowing date and subsequently emergence date was delayed in Zone I, Zone II, Zone V, Zone VI and Zone VII, however advanced significantly in Zone III and Zone IV (Table 3). Anthesis date and maturity date advanced significantly in all the zones except Zone VI and Zone VII (Table 3). As a result, the length of each growth period before anthesis was generally shortened, however the length of RGP was prolonged in all the zones (Table 3). Finally the GPw was significantly shortened in Zone I, Zone II, Zone V and Zone VIII.