Plants were either irrigated to 18% of volumetric soil water content (FI, full irrigation), or irrigated with 70% water of the fully-irrigated control, delivered to either the whole pot (DI, deficit irrigation) or alternately to only half of the pot (PRD, partial root-zone drying).
Three irrigation treatments were assayed: full irrigation (FI), RDI1, irrigated as FI except for the postharvest period where 50% of FI was applied; and severe RDI (RDI2), irrigated as RDI1, except for two periods in which irrigation was suppressed.
Partial rootzone irrigation (PRI) means that part of the root system is exposed to drying soil while the remaining part is irrigated as in full irrigation.
The control treatment was full irrigation throughout.
(5) Rice: rice with full irrigation (because of its high sensitivity to deficit irrigation).
(6) Tomato: tomato with full irrigation (because of its high sensitivity to deficit irrigation.
PRD partial root-zone drying, TDI traditional deficit irrigation, FI full irrigation.
The third factor was water management in three levels: full irrigation (FI), PRD and TDI.
Full irrigation had the maximum height of corn plants among irrigation treatments (Fig. 8).
DI significantly increased the fruit quality and IWUE compared to the full irrigation regime (W3).
Treatments consisted of three irrigation intervals (S7: 7 days, S14: 14 days, and S21: 21 days) and five irrigation levels (I100: 100% irrigation or full irrigation, I75: 75% of full irrigation, I50: 50% of full irrigation, I25: 25% of full irrigation, and I0: no irrigation).
