Fig. 5.

Principal component analysis plot showing loadings of measured parameters and contribution of two principal components (PC1 and PC2), under various levels of soil applied biochar and peatmoss (with and without) and drought stress in pot trial experiment. NOL = number of leaves; LL = leaf length; LW = leaf width; PH = plant height; LA = leaf area; SFW = shoot fresh weight; SDW = shoot dry weight; RFW = root fresh weight; RDW = Root dry weight; MDA = malonaldehyde content; PRO = proline content; SP = soluble proteins; TCHL = total chlorophyll content; SOD = superoxide dismutase activity; CAT = catalase activity; POD = peroxidase activity; SS = soluble sugar contents; APX = ascorbate activity; LK = leaf K content; L Cl = leaf chloride content; NC = nicotine content