Response of Wheat Physiological and Agronomic Traits to Water Stress and Zeolite Application

With increasing water deficit in agricultural production, quantity and quality of these products will be affected. In order to evaluate the response of wheat physiological and agronomic characteristics to water stress and zeolite application, this study was carried out in field of Arak Payam Noor University in 2009. A split-plot arrangement of treatments in a randomized complete block design with three replications was used. Water stress (I0= Control irrigation, I1= Irrigation about 85% plant requirement water, I2= Irrigation about 70% of plant requirement water, I3= Irrigation about 55% of plant requirement water, were assigned in the main plots and different levels of zeolite application (Z0= without zeolite application, Z1= 3 ton ha-1, Z = 6 ton ha-1, Z3= 9 ton ha-1) in sub plots. Each sub plot consisted of 4 rows, 5 m long with 50 cm between rows space and 5 cm between plants on the rows. Results indicated that un-stress irrigation (control irrigation) with average spike biological yield (36.51 g per 10 plant) and zeolite application (9 ton ha-1) with average (34.02 g per 10 plant) were significantly superior to the other treatments. The maximum and minimum of grain yield obtained of treatments (control irrigation + 9 ton ha-1 of zeolite) and (irrigation about 55% of plant requirement water + 3 ton ha-1 of zeolite), respectively. Zeolite application was positive affected on almost of agronomic and physiologic traits in wheat.