Effect of Irrigation Intervals on Yield, Yield Components and Water Use Efficiency of Different Greenhouse Cultivars of Tomato in Jiroft Region

In order to investigate the effect of irrigation intervals on yield, water use efficiency and yield components of tomatoes, a field experiment was carried out during 2015 and 2016 growing seasons in experimental farm in Jiroft. The treatments were laid out as split plot based on Randomized Complete Block Design with three replications. The treatments were comprised of three cultivars of tomato (Norat Falkato and Titauo) in main plot and sub plot consisted of three irrigation levels (10±2, 15±2 and 20±2 mm evaporation for class A pan). The results showed that in comparison to 10 and 15 mm evaporation for class A pan, parsimony of water usage equal 970 m3.ha-1 achieved. Moreover yield, height of plants, number of fruits per plant, weight and diameter of fruit decreased 7.4, 8.6, 2.8, 7.2 and 9.5 percent, respectively, But water use efficiency increased 12.4 percent. On the other hand studied parameters of Falkato variety was better than the other cultivars. Also, planting Falkato variety and 15 mm evaporation for class A pan was in the best position in terms of water use efficiency. In order to increase water productivity and optimal use of water resources, it is suggested cultivation Falkato variety with 40 irrigation, at 4 days interval and 100 cubic meters of water in of greenhouse condition.
In order to investigate the effect of irrigation intervals on yield, water use efficiency and yield components of tomatoes, a field experiment was carried out during 2015 and 2016 growing seasons in experimental farm in Jiroft. The treatments were laid out as split plot based on Randomized Complete Block Design with three replications. The treatments were comprised of three cultivars of tomato (Norat Falkato and Titauo) in main plot and sub plot consisted of three irrigation levels (10±2, 15±2 and 20±2 mm evaporation for class A pan). The results showed that in comparison to 10 and 15 mm evaporation for class A pan, parsimony of water usage equal 970 m3.ha-1 achieved. Moreover yield, height of plants, number of fruits per plant, weight and diameter of fruit decreased 7.4, 8.6, 2.8, 7.2 and 9.5 percent, respectively, But water use efficiency increased 12.4 percent. On the other hand studied parameters of Falkato variety was better than the other cultivars. Also, planting Falkato variety and 15 mm evaporation for class A pan was in the best position in terms of water use efficiency. In order to increase water productivity and optimal use of water resources, it is suggested cultivation Falkato variety with 40 irrigation, at 4 days interval and 100 cubic meters of water in of greenhouse condition.