. 2021 Mar 8;10(2):214–222. doi: 10.1093/toxres/tfab004

Table 1.

effects of ZnONPs and P alone and in combination on chlorophyll a (Chl a), chlorophyll b (Chl b) and carotenoids (Car) in T. aestivum and S. lycopersicum

	Photosynthetic pigment contents (mg g ⁻¹ fresh weight)
Treatments	Chl a		Chl b		Car
	*Triticum aestivum*	*Solanum lycopersicum*	*Triticum aestivum*	*Solanum lycopersicum*	*Triticum aestivum*	*Solanum lycopersicum*
Control	1.5900 ± 0.027^b	1.6230 ± 0.024^b	0.3760 ± 0.006^b	0.3990 ± 0.006^b	0.4890 ± 0.008^b	0.5120 ± 0.007^b
ZnONPs—500 μM	1.2500 ± 0.021^c	1.4150 ± 0.021^c	0.3040 ± 0.005^c	0.3590 ± 0.005^c	0.4010 ± 0.006^d	0.4480 ± 0.006^c
ZnONPs—1000 μM	1.0100 ± 0.017^d	1.1480 ± 0.017^d	0.2500 ± 0.004^d	0.2900 ± 0.004^d	0.3180 ± 0.005^e	0.3870 ± 0.005^d
Phosphorus	1.7800 ± 0.030^a	1.9390 ± 0.029^a	0.4270 ± 0.007^a	0.4800 ± 0.007^a	0.5550 ± 0.009^a	0.5990 ± 0.008^a
ZnONPs—500 μM + phosphorus	1.4700 ± 0.025^b	1.5680 ± 0.023^b	0.3390 ± 0.005^b	0.3800 ± 0.006^b	0.4370 ± 0.007^c	0.4860 ± 0.006^b
ZnONPs—1000 μM + phosphorus	1.3000 ± 0.022^c	1.4599 ± 0.021^c	0.3130 ± 0.005^c	0.3600 ± 0.005^c	0.4214 ± 0.007^c,d	0.4620 ± 0.006^c

The data are means ± standard error of three replicates. Different letters on values within same column show significant difference at P < 0.05.