Table 1.
Major ions of the SAR (mM).
Fig 1.
Images of rice seedling roots under different treatments.
(A-D) no Si; (E-H) 1 mM Si; (I-L) 2 mM Si; (M-P) 4 mM Si; (A, E, I, M) no acid soil; (B, F, J, N) SAR at pH 4; (C, G, K, O) SAR at pH 3; and (D, H, L, P) SAR at pH 2.
Table 2.
Effects of Si and SAR on root phenotypic traits of rice seedlings.
Table 3.
Effects of Si and SAR on the root FW and DW of rice seedlings.
Table 4.
Relationship of four root phenotypic traits and Si concentration with the FW or DW of the roots of rice seedlings treated with Si and SAR.
Table 5.
Effects of Si and SAR on mineral element concentrations in the roots of rice seedlings.
Table 6.
Effects of Si and SAR on CAT, POD, SOD, and APX activities and H2O2 content in rice roots.