Table 2 Effect of different Cd stress with foliar Nano-TiO₂ application on morpho-physiological traits of Mentha piperita L. plants.

8.99^h ± 0.21

8^ef ± 0.33

0.78^b ± 0.01

0.06ⁱ ± 0.01

15.53^d ± 0.29

15^c ± 0.58

0.79^ab ± 0.02

0.05ⁱ ± 0.02

19.87^a ± 0.34

22^a ± 0.53

0.90^a ± 0.01

0.02ⁱ ± 0.01

8.60^hi ± 0.16

7^fg ± 0.31

0.71^d ± 0.01

0.75^ef ± 0.03

13.78^e ± 0.23

13^d ± 0.35

0.73^c ± 0.01

0.39^g ± 0.02

17.00^b ± 0.28

19^b ± 0.34

0.73^c ± 0.01

0.26^h ± 0.03

7.75^j ± 0.18

6^g ± 0.32

0.63^g ± 0.02

1.33^d ± 0.02

11.88^f ± 0.22

12^d ± 0.3

0.68^e ± 0.03

0.79^e ± 0.04

16.48^c ± 0.27

16^c ± 0.29

0.70^d ± 0.01

0.72^f ± 0.05

5.96^k ± 0.12

5^h ± 0.02

0.52^h ± 0.01

2.45^a ± 0.08

8.42ⁱ ± 0.19

9^e ± 0.28

0.64^fg ± 0.02

1.98^b ± 0.05

9.60^g ± 0.25

12^d ± 0.34

0.65^f ± 0.01

1.92^c ± 0.1