The effect of salinity on evapotranspiration, some growth parameters and ion uptake of sweet sorghum

This study aimed to determine the effect of different irrigation water salinity levels on growth, evapotranspiration, some growth parameters, and leaves and roots ion uptake in of two different sweet sorghum (Sorghum bicolor L.) varieties (Erdurmus and Uzun) Six different saline irrigation water levels (S0=0.5 (control), S1= 1.0, S2= 2.0, S4=4.0, S8= 8.0, and S16=16.0 ds m-1) were obtained by mixing the NaCl and CaCl2 salt sources into the tap water source. Plants were harvested before the phase of florescence. Increasing salinity level first increased and then decreased all growth parameters (Stem length, root length, fresh stem weight, fresh root weight, dry stem weight, and dry root weight). The increased salinity level after S2 treatment resulted in decreased water use efficiency. The salinity level affected the uptake of all ions in the root (except the K ion) and leaf, and as the salinity level increased, the amount of N, P, Mn, Zn and Na in the leaf increased significantly, while the amount of K, Ca, Mg, Fe and Cu decreased.