Figure 7
PCA biplot for different zinc levels under zinc deficient soil conditions. PCA biplot is a combination of score plot of zinc levels (represented in blue text) and loading plot of variables (represented by red vectors; black text). Photo, photosynthetic rate; Trans, transpiration rate; Conduc, stomatal conductance; SOD, superoxide dismutase; CAT, catalase; POD, peroxidase; TSP, total soluble protein; CHLA, chlorophyll a; CHLB, chlorophyll b; TCHL, total chlorophyll; ZR, zinc in roots; ZSH, zinc in shoot; ZS, zinc in soil; PS, phosphorus in soil; PSH, phosphorus in shoot.
