Influence of Irrigation with Wastewater of Leaven Factory on Grain and Ear characteristics of Corn

In recent years, water deficit and environmental hazards of wastewater have promoted the development of wastewater reuse in irrigation of agricultural lands in many arid and semi-arid regions. An experiment was conducted out at the experimental farm of a leaven factory, where the effect of treated wastewater on yield and yield components of corn (Zea mays) was studied during the growing season of 2012. Three, irrigation levels (I1: irrigation with wastewater once in whole experimental period, I2: irrigation with wastewater twice in whole experimental period and I3: irrigation with wastewater in whole experimental period) and six wastewater percentage levels (C1: 15% wastewater, C2: 30% wastewater, C3: 45% wastewater, C4: 60% wastewater, A: pure water and P: pure wastewater) were studied in a randomized complete block factorial design with three replications. Results illustrated that number of irrigation with wastewater did not have significant effect on grain characteristics, row per ear and ear length while it had significant effect on ear diameter, cob weight, total weight of grain and cob. Also results showed that wastewater percentage did not have significant effect on mentioned traits. The maximum increase of total weight of cob and grain was observed in irrigation with wastewater whole over growth season. Results also illustrated that irrigation with wastewater whole over the growth season had the most significant effect on ear diagonal and harvest index. * Corresponding Author: Ata Bahojb-Almasi  Ataalmasi@yahoo.com