Effect of Water Absorbent Materials on some Agronomic Traits and Seed Protein of Wheat Under Water Deficit Stress

In order to evaluate the effect of water stress and water absorbent materials on some agronomic traits and seed protein of Alvand wheat, this study was carried out in the field of Islamic Azad University, Arak branch in 2010- 2011. A split-plot arrangement of treatment in a randomized complete block design with three replications was used. The experiment consisted of three irrigation treatments (100%, 85% and 70% of plant water requirement) that applied in the main plot and water absorbent materials on six levels (controls, 30 tons animal manure per hectare, 15 tons animal manure 4 tons zeolite per hectare, 15 tons animal manure per hectare 2 tons bentonite per hectare, 4 tons zeolite per hectare 2 tons bentonite per hectare and 15 tons animal manure per hectare 2 tons bentonite per hectare 4 tons zeolite per hectare that used in the sub plots. Results showed that the highest grain protein content obtained from 70% irrigation with average of 15.44 percent and lowest protein content was determined in normal irrigation treatment with average of 13.58 percent. The maximum and minimum grain yield with the average of 6590 and 3500 kg ha-1 were related to the combination of normal irrigation 15 tons animal manure 4 tons zeolite per hectare and 70% irrigation 15 tons animal manure per hectare, respectively.