Fig. 5

Pearson correlation (P ≤ 0.05) among the determined traits of potato cv. Sutlej; PH = plant height, LA = leaf angle, SOD = superoxide dismutase, ΦII = quantum yield of photosystem II, CAT = catalase, TD = tuber diameter, TY = tuber yield; PAR = photosynthetically active radiation, POD = peroxidase, LEF = linear electron flow; LAI = leaf area index, APX = ascorbate peroxidase, LT = leaf thickness, SB = shoot biomass, ATW = average tuber weight, CGR = crop growth rate, O–2= superoxide anion, H2O2 = hydrogen peroxide content, ΦNO = non-regulatory energy dissipation, ΦNPQ = non-photochemical quenching, LEL = leaf electrolyte leakage.