. 2019 May 9;16(9):1624. doi: 10.3390/ijerph16091624

Table 2.

Cd enrichment of Pennisetum with/without Si.

Variety	Cd Treatments	Si Treatments	Si Concentration mg·kg⁻¹		Cd Concentration mg·kg⁻¹		Cd Accumulation mg·pot⁻¹		Enrichment Factor (EF)		Translocation Factor (TF)
Variety	Cd Treatments	Si Treatments	Shoots	Roots	Shoots	Roots	Shoots	Roots	Shoots	Roots	Translocation Factor (TF)
P. glaucum × P. purpureum	0	−Si	6.12 ± 0.14bcde	4.04 ± 0.46c
	0	+Si	6.38 ± 0.20abc	6.29 ± 0.25b
	10	−Si	5.53 ± 0e	4.7 ± 0.05c	22.79 ± 0.93d	15.78 ± 0.72cd	0.19 ± 0.01ab	0.04 ± 0a	1.31 ± 0.11a	0.90 ± 0.04a	1.45 ± 0.066a
	10	+Si	6.61 ± 0.29ab	7.34 ± 0.36a	15.38 ± 0.6d	10.7 ± 0.41d	0.18 ± 0.01b	0.04 ± 0a	0.43 ± 0.22b	0.30 ± 0.03c	1.44 ± 0.08a
	50	−Si	5.78 ± 0.11cde	4.38 ± 0.05c	44.95 ± 1.21b	34.47 ± 2.39b	0.26 ± 0.02ab	0.06 ± 0.01a	0.49 ± 0.04b	0.37 ± 0.03bc	1.31 ± 0.06a
	50	+Si	6.98 ± 0.38a	6.36 ± 0.24b	34.44 ± 1.08c	19.81 ± 1.48cd	0.31 ± 0.05a	0.05 ± 0.01a	0.19 ± 0.01c	0.11 ± 0.01d	1.76 ± 0.16a
	100	−Si	5.68 ± 0.09de	4.70 ± 0.05c	80.62 ± 3.95a	110.32 ± 7.29a	0.21 ± 0.07ab	0.08 ± 0.03a	0.32 ± 0.05bc	0.43 ± 0.07b	0.73 ± 0.02b
	100	+Si	6.18 ± 0.00bcd	6.69 ± 0.39ab	36.88 ± 5.29bc	24.98 ± 1.38bc	0.24 ± 0.03ab	0.05 ± 0a	0.16 ± 0.03c	0.11 ± 0.02d	1.51 ± 0.30a
P. glaucum	0	−Si	5.9 ± 0.15de	4.53 ± 0.34f
	0	+Si	6.71 ± 0.06bc	6.79 ± 0.09cd
	10	−Si	5.53 ± 0.00ef	6.19 ± 0.31d	16.05 ± 0.11d	9.87 ± 0.78d	0.16 ± 0.01a	0.02 ± 0c	0.70 ± 0.01a	0.43 ± 0.03ab	1.65 ± 0.13a
	10	+Si	8.11 ± 0.49a	8.00 ± 0.15ab	11.29 ± 0.98d	13.68 ± 2.77d	0.15 ± 0.01a	0.04 ± 0.01bc	0.32 ± 0.04b	0.39 ± 0.09ab	0.88 ± 0.14b
	50	−Si	6.6 ± 0.30bcd	5.91 ± 0.61de	34.88 ± 1.96b	68.88 ± 4.6b	0.23 ± 0.02a	0.07 ± 0.02a	0.17 ± 0.01c	0.33 ± 0.01bc	0.51 ± 0.03c
	50	+Si	7.29 ± 0.10b	8.67 ± 0.20a	27.37 ± 0.70c	32.57 ± 2.74c	0.21 ± 0a	0.05 ± 0ab	0.11 ± 0.00c	0.13 ± 0.01c	0.85 ± 0.08b
	100	−Si	4.98 ± 0.19f	4.88 ± 0.28ef	61.98 ± 2.52a	117.54 ± 6.15a	0.20 ± 0.05a	0.04 ± 0.01ab	0.33 ± 0.01b	0.62 ± 0.16a	0.53 ± 0.03c
	100	+Si	6.55 ± 0.05cd	7.45 ± 0.58bc	39.23 ± 3.75b	66.03 ± 5.77b	0.18 ± 0.06a	0.06 ± 0.01ab	0.11 ± 0.00c	0.18 ± 0.02bc	0.6 ± 0.06bc

Values are mean ± SE (n = 3). Values followed by the different letters indicate significant differences between different treatments of the same variety, according to one-way ANOVA followed by the Duncan test (p < 0.05).