Management of Inoculation with Bradyrhizobium japonicum and Application of Vitamins for Hydroponic Soybean Cultivation

Figure 5

Pearson correlation network among growth variables: plant height (PH), number of leaves (NL), stem diameter (SD); photosynthesis variables: water use efficiency (WUE), relative chlorophyll index (RCI), transpiration (E), intracellular CO₂ concentration (Ci), stomatal conductance (gs), and CO₂ assimilation rate (An); grain yield and its components: number of grains per plant (NGP), number of pods per plant (NP), 100-grain weight (HUN), and grain yield per plant (Yld) according to the application of vitamins and seed inoculation. Positive correlations were highlighted in green, while negative correlations were highlighted in red, determining the line thickness followed a cut-off value of 0.7, corresponding to 70% reliability.