Figure 5From: Uptake, transport, distribution and Bio-effects of SiO2 nanoparticles in Bt-transgenic cotton Effect of SiO 2 NPs concentrations on nutrient contents in roots. The value was given as means ± SD. The (*) was represented significant difference (p <0.05) between control and SiO2 NPs treatments at the same cotton, and the (*) above the line segment was represented significant difference (p <0.05) between cultivars at the same SiO2 NPs concentration.Back to article page