In order to evaluate the impact of cattle manure and mycorrhiza fungi on pumpkin plants (cucurbita pepo con Var.styriaca) under water deficit stress conditions, a split-factorial design was conducted as base of randomized complete block design with four replications. Irrigation interval (at three levels: 60, 120 and 180 mm based on cumulative evaporation from class A pan) as main plots that exerted on pre-flowering, cattle manure (at three levels: 0, 15 and 30 t/ha) and mycorrhiza fungi (at two levels: with and without application) as sub plots were considered. The results showed that...