Table 2.

Concentration of Al and Si, and dry matter production of ryegrass plants hydroponically cultivated under different Al and Si treatments.

Treatment (mM)	Al concentration (g kg-1 DW)		Si concentration (g kg-1 DW)		Dry weight (g)
	Shoots	Roots	Shoots	Roots	Shoots	Roots
0 Al – 0 Si	0.02 ± 0.00cd	0.16 ± 0.02d	0.31 ± 0.09e	0.33 ± 0.03e	6.53 ± 0.29bc	1.37 ± 0.06ab
0 Al – 0.5 Si	0.01 ± 0.00d	0.15 ± 0.00d	5.85 ± 0.44c	6.42 ± 0.20c	7.04 ± 0.29abc	1.37 ± 0.10ab
0 Al – 2 Si	0.01 ± 0.00d	0.13 ± 0.01d	13.78 ± 0.26a	13.47 ± 0.09a	6.69 ± 0.22abc	1.39 ± 0.13a
0.2 Al – 0 Si	0.07 ± 0.00a	3.84 ± 0.24a	0.21 ± 0.03e	0.38 ± 0.10e	6.07 ± 0.42c	0.98 ± 0.06b
0.2 Al – 0.5 Si	0.04 ± 0.00b	2.68 ± 0.10b	4.40 ± 0.13d	4.30 ± 0.15d	7.95 ± 0.42ab	1.48 ± 0.08a
0.2 Al – 2 Si	0.03 ± 0.00bc	1.69 ± 0.11c	10.29 ± 0.19b	11.88 ± 0.20b	8.09 ± 0.32a	1.61 ± 0.06a

Values are means ± standard error of three replicates. Different letters indicate statistically significant differences (p ≤ 0.05) among treatments.