substantially and significantly enhanced KUE in salt sensitive and salt tolerant
cultivars at both NaCl levels compared to the plants under saline conditions
without K availability. KUE was negatively correlated with shoot Na concentration
in both sugarcane cultivars (R2 = 0.72 for salt sensitive and R2 = 0.66
for salt tolerant cultivars) at different levels of NaCl and K (Figure 5).