Bacillus subtilis HG-15, a Halotolerant Rhizoplane Bacterium, Promotes Growth and Salinity Tolerance in Wheat (Triticum aestivum)

Figure 7

Correlation analysis of soil parameters and plant factors under the effect of strain HG-15. AN: available N; pH: soil pH; OM: organic matter; TN: total N; OP: Olsen-P; EC: electrical conductivity; Mg: Mg²⁺ concentration; Ca: Ca²⁺ concentration; K: K⁺ concentration; Na: Na⁺; PRO: proline; TSS: total soluble sugar; TP: total protein; MDA: malondialdehyde; POD: peroxidase; SOD: superoxide dismutase; CAT: catalase; Chl a: chlorophyll a; Chl b: chlorophyll b; A: net photosynthetic rate; GSW: stomatal conductance; E: transpiration rate; Ci: intercellular CO₂ concentration; Fv/Fm: PSII primary conversion efficiency; DW: total dry weight of roots and shoots; FW: total fresh weight of roots and shoots; Height: plant height; RL: root length. Blue indicates a negative correlation between parameters, and red indicates a positive correlation between parameters. and .