Table 4.

Effect of different silicon (1.0 mM) and PEG-6000 (20%) treatments on hydrogen peroxide and malondialdehyde contents and electrolyte leakage in the leaves of wheat seedlings (Triticum aestivum L. cv. Longchun 8139)

Treatment	Hydrogen peroxide (µmol g−1 DW)	Malondialdehyde (nmol g−1 DW)	Electrolyte leakage (%)
CK	391.76 ± 16.19 ba	100.9 ± 2.93 b	3.44 ± 0.17 c
Si	314.60 ± 14.30 c	93.0 ± 3.05 c	3.94 ± 0.18 bc
PEG	508.04 ± 18.33 a	110.2 ± 2.24 a	4.87 ± 0.12 a
PEG + Si	384.30 ± 17.23 b	105.6 ± 2.29 ab	4.23 ± 0.22 b

^a Within each column, means followed by the same small letters are not significantly different according to the LSD test at P ≤ 0.05