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Effect of plant growth regulators (PGRs); gibberellic acid (GA3), triacontanol (Tria) or salicylic acid (SA) grown with or without cadmium (Cd) on (A) SPAD value and, (B) leaf area of two different menthol mint cultivars. Data are presented as treatments mean ± SE (n = 5). The bar shows standard error and different capital and small letters represent significant differences in Kushal and Kosi cultivars among various treatments by DMRT test at P ≤ 0.05
