Phytotoxicity and Antimicrobial Activity of Green Synthesized Silver Nanoparticles Using Nigella sativa Seeds on Wheat Seedlings

Table 3

The effect of the phytotoxicity of different concentrations (25, 50, 75, and 100 μg·L⁻¹) of AgNPs on wheat germination and seedling growth.

Concentration (μg·L^−1)	Germination (%)	Radical length (cm)	Coleoptile length (cm)	Fresh weight (mg)	Dry weight (mg)
Control 0.0	98.0 ± 2.34	7.3 ± 0.76	5.50 ± 0.22	1.50 ± 0.31	0.49 ± 0.07
25	97.5 ± 2.30^a	5.8 ± 0.32^b	4.24 ± 0.31^a	1.61 ± 0.10^b	0.55 ± 0.05^b
50	98.0 ± 1.87^a	4.1 ± 0.60^b	4.28 ± 0.17^b	1.56 ± 0.11^a	0.54 ± 0.12^b
75	97.0 ± 1.45^a	5.3 ± 0.35^b	3.45 ± 0.19^c	1.92 ± 0.09^c	0.69 ± 0.07^c
100	96.7 ± 2.39^a	4.3 ± 0.44^b	3.32 ± 0.07^c	1.74 ± 0.86^b	0.59 ± 0.08^c

a = nonsignificant; b = significant; c = highly significant at the 0.05 level.