Wheat sowing date and subsequently emergence date wasdelayed in Zone I, Zone II, Zone V, Zone VI and Zone VII, howeveradvanced significantly in Zone III and Zone IV (Table 3). Anthe-sis date and maturity date advanced significantly in all the zonesexcept Zone VI and Zone VII (Table 3). As a result, the length of eachgrowth period before anthesis was generally shortened, howeverthe length of RGP was prolonged in all the zones (Table 3). Finallythe GPw was significantly shortened in Zone I, Zone II, Zone V andZone VIII.