University of Tehran Press Iranian Journal of Soil and Water Research 2008-479X 50 8 2019 12 22 Effect of Irrigation Water Salinity on Yield and Agronomic Charactristics of Three Corn (Zea mays L.) Hybrids Using Drip-Tape Irrigation Effect of Irrigation Water Salinity on Yield and Agronomic Charactristics of Three Corn (Zea mays L.) Hybrids Using Drip-Tape Irrigation 2037 2049 70794 10.22059/ijswr.2019.271808.668073 FA Morteza Khoshsima MSc Student, Department of Irrigation and Reclamation Engineering, College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran Hamideh Noory Assistant professor, Department of Irrigation and Reclamation Eng., College of Agriculture and Natural Resources, University of Tehran, Karaj, Iran. Journal Article 2018 12 26 The application of marginal water, such as saline water for irrigation, is inevitable due to increasing demand for water in arid and semi-arid regions. In order to study the effect of salinity stress on growth and yield of three fodder maize hybrids using drip-tape irrigation, a factorial experiment in randomized complete block design was carried out in 2017. The treatments consisted of three maize hybrids (SC 704, SC 400 and SC 260) and three levels of water salinity (0.7, 3 and 5 dS/m). To ensure seed germination, all treatments were irrigated with fresh water from germination stage to 40 cm height of corn and then salinity stress was applied. The results of variance analysis and comparison of mean measured charactristics (fresh and dry weight of forage, grain yield, 1000-grain weight, leaf area index and plant height) showed that there were significant differences among charactristics under different levels of water salinity. The most and the least amount of each charactristic were observed in the control and maximum salinity stress treatments, respectively. The result of this study showed a significant effect of maize hybrid type on most of the measured charactristics, as the most amounts was found in SC 704. The application of marginal water, such as saline water for irrigation, is inevitable due to increasing demand for water in arid and semi-arid regions. In order to study the effect of salinity stress on growth and yield of three fodder maize hybrids using drip-tape irrigation, a factorial experiment in randomized complete block design was carried out in 2017. The treatments consisted of three maize hybrids (SC 704, SC 400 and SC 260) and three levels of water salinity (0.7, 3 and 5 dS/m). To ensure seed germination, all treatments were irrigated with fresh water from germination stage to 40 cm height of corn and then salinity stress was applied. The results of variance analysis and comparison of mean measured charactristics (fresh and dry weight of forage, grain yield, 1000-grain weight, leaf area index and plant height) showed that there were significant differences among charactristics under different levels of water salinity. The most and the least amount of each charactristic were observed in the control and maximum salinity stress treatments, respectively. The result of this study showed a significant effect of maize hybrid type on most of the measured charactristics, as the most amounts was found in SC 704. https://ijswr.ut.ac.ir/article_70794_76edfec7e578fa1350a79abea98c677a.pdf