Figure 2. Development of pepper plants (Capsicum anunum L.) grown in nutrient solutions containing different concentrations of Si under unstressed conditions 28 dat.

Control: (A), (E) and (I); 60 mg L⁻¹ Si: (B), (F) and (J); 125 mg L⁻¹ Si: (C), (G) and (K); 250 mg L⁻¹ Si: (D), (H) and (L).