TABLE 3.

Effect of IONPs and SiNPs on carotenoids, total chlorophyll content, Chlb, and Chla of Phaseolus vulgaris grown in different concentrations of Cd.

Treatments	Carotenoids	Total Chlorophyll	Chlb	Chla
Cd0 + IONPs	4.87 ± 0.89ab	1.42 ± 0.071a	0.55 ± 0.032ab	0.87 ± 0.043
Cd0 + SiNPs	3.78 ± 0.76b	1.10 ± 0.032bc	0.34 ± 0.026c	0.76 ± 0.031
Cd0 + IONPs + SiNPs	4.93 ± 0.51a	1.19 ± 0.024bc	0.65 ± 0.016a	0.54 ± 0.017
Cd1 + IONPs	3.23 ± 0.47bc	0.81 ± 0.027c	0.35 ± 0.034bc	0.46 ± 0.026
Cd1 + SiNPs	3.02 ± 0.39c	0.66 ± 0.046	0.28 ± 0.026cd	0.38 ± 0.027
Cd1 + IONPs + SiNPs	3.16 ± 0.23bc	1.3 ± 0.037b	0.41 ± 0.017b	0.89 ± 0.031
Cd2 + IONPs	3.09 ± 0.42bc	0.78 ± 0.045c	0.31 ± 0.015cd	0.47 ± 0.025
Cd2 + SiNPs	2.89 ± 0.25cd	0.65 ± 0.067cd	0.23 ± 0.019cd	0.42 ± 0.027
Cd2 + IONPs + SiNPs	3.87 ± 0.31ab	0.96 ± 0.047bc	0.37 ± 0.023bc	0.59 ± 0.015
Cd3 + IONPs	2.78 ± 0.18cd	0.79 ± 0.067cd	0.24 ± 0.021cd	0.55 ± 0.036
Cd3 + SiNPs	2.67 ± 0.24d	0.65 ± 0.078cd	0.21 ± 0.054d	0.44 ± 0.045
Cd3 + IONPs + SiNPs	3.54 ± 0.26bc	1.13 ± 0.037ab	0.38 ± 0.018bc	0.75 ± 0.029

Here IONPs, SiNPs, Cd0, Cd1, Cd2, Cd3 indicates iron oxide nanoparticles, silicon nanoparticles, 0 mM CdCl₂, 1 mM CdCl₂, 1.5 mM CdCl₂, 2 mM CdCl₂. Different letters indicate significant difference among the treatments (P ≤ 0.05).