Effect of deficit irrigation on eggplant yield under greenhouse conditions
Population increase and urbanization put pressure on reducing the amount of water used in agriculture. For this reason, it is very important to apply and develop techniques that save irrigation water with a minimum reduction in crop productivity. In this study, some parameters were measured and handled during the growing season when the need for water was fully met and when deficit water irrigation was applied. The research was carried out in a greenhouse in Antalya, a province of Turkey, where Mediterranean climate conditions are dominant. A drip irrigation method with three different water levels, 100, 75 and 50%, was applied. The traditional deficit (DI75 and DI50) and partial root drying (APRD75, APRD50, FPRD75 and FPRD50) applications were compared with the control treatment (FULL, 100%). Results indicate that water reduction rates and irrigation application techniques were effective in terms of water-yield relations on eggplant production. The regression coefficient for the amount of irrigation water used and the average fruit weight varied between 0.94 and 0.03 for the treatments, for the number of fruits harvested between 0.94 and 0.42. Furthermore, the number of leaves for irrigation treatments varied between 39 and 79 when the plant showed maximum development. DI75 and APRD75 treatments may be applied under water scarcity conditions.
Özbek, Ö. and Kaman, H. (2021). Effect of deficit irrigation on eggplant yield under greenhouse conditions. Acta Hortic. 1326, 167-172
drip irrigation, eggplant, number of leaves