Fig. 9 | Scientific Reports

Fig. 9

From: Synergistic application of biochar and sodium hydrosulfide enhances maize drought tolerance through improved physiological performance and stress mitigation

Fig. 9

Principal component analysis figure illustrating the loadings of assessed traits and the contributions of the two principal components (PC1 and PC2). PH = plant height; ER = ear diameter; EL = ear length; LWC = leaf water contents; SS = soluble sugar; Chl.f = chlorophyll fluorescence; PR = photosynthetic rate; Chl a = chlorophyll a; Chl b = chlorophyll b; Tchl = total chlorophyll; ELL = electrolyte leakage; MDA = malonaldehyde; POD = peroxidase activity; SOD = superoxide dismutase activity; APX = ascorbate activity; CAT = catalase; sucrose; proline; Car = carotenoids; O2- activity; H2O2; SP = soluble protein; GPX; SC = stomatal conductance; Int. CO2; PPO = polyphenol Oxidase; PAL = phenylalanine ammonia-lyase; phenolics; FA = ferulic acid.

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