*4.3. Parameters Used for Model Calibration*

In total, 26 input parameters were used for the model calibration (Table 4). Out of these, 14 parameters were considered as "conservative" because they do not change with salinity and are independent of limiting or non-limiting conditions. These parameters include normalized crop water productivity and crop transpiration coefficient. The remaining 12 are site-specific (climate, water, and soil salinity) and crop-specific (tolerant or sensitive). These input parameters were adjusted during the calibration process to obtain better adequacy between the measured and simulation values.



**Table 4.** *Cont.*

### *4.4. Development of Di*ff*erent Scenarios*

After calibration and evaluation, the model was used to assess the performance of two barley varieties under three water salinity conditions scenarios i.e., 5, 10, and 15 dS m<sup>−</sup>1, using the weather data for the growing season 2013–2014.
