Fig. 5
Relationships between morphological traits (yellow), leaf physiological traits (green), PUE traits (purple), ROS accumulation (red), antioxidants (gray), and osmoprotectants (water blue). Nodes shows the traits and edges (red positive and blue negative) represents the correlations. The thickness of the edges represents the strength of the correlation coefficient for each pair. SL; shoot length, RDM; root dry matter, SDM; shoot dry matter, TDM; total dry matter, RL; root length, RSA; root surface area, RD; root diameter, RV; root volume, Pn; photosynthetic rate, gs; stomatal conductance, E; transpiration rate, Ci; intercellular CO2 concentration, Chl a; chlorophyll a content, Chl b; chlorophyll b content, Chl ab; chlorophyll a + b, CAR; carotenoid contents, RP; root phosphorus concentrations, SP; shoot phosphorus concentration, RPA; root phosphorus accumulation, SPA; shoot phosphorus accumulation, PUpE; phosphorus uptake efficiency, PUtE; phosphorus utilization efficiency, RMDA; root malondialdehyde content, SMDA; shoot malondialdehyde content, RO2; root superoxide anion, SO2; shoot superoxide anion, RH2O2; root hydrogen peroxide, SH2O2; shoot hydrogen peroxide, RSOD; root superoxide dismutase, SSOD, shoot superoxide dismutase, RPOD; root peroxidase, SPOD; shoot peroxidase, RCAT; root catalase, SCAT; shoot catalase, RFAA; root free amino acids, SFAA; shoot free amino acids, RTSP; root total soluble proteins, STSP; shoot total soluble proteins, RTSS; root total soluble sugars, and STSS; shoot total solubvle sugars