Table 3.

Macronutrient concentration (mg kg⁻¹ dry weight) in roots, stems and leaves of H. lanatus and D. tenuifolia. Values are means ± standard deviation (SD). Between treatments means with the same letter are not significantly different at Tukey’s test (p ≤ 0.05). In mean comparison between species, ns is not significant at p ≤ 0.05, *, and *** indicate significance at p ≤ 0.05, and p ≤ 0.001, respectively.

Treatment	K		Mg		Na		P
	H. lanatus	D. tenuifolia	H. lanatus	D. tenuifolia	H. lanatus	D. tenuifolia	H. lanatus	D. tenuifolia
	Roots
Ctrl	7.35 ± 0.27a	7.35 ± 0.27a	138 ± 38.3a	46.3 ± 3.14a	19.1 ± 3.34a	4.21 ± 0.86a	159 ± 15.9a	40.3 ± 5.11b
nCeO2 25 nm	7.84 ± 2.06a	7.84 ± 2.06a	103 ± 20.9ab	14.3 ± 1.97b	12.3 ± 13.6b	2.59 ± 0.44b	101 ± 13.7b	68 ± 10.1a
nCeO2 50 nm	7.35 ± 1.25a	7.35 ± 1.25a	60.7 ± 19b	13 ± 3.28b	16.7 ± 2.12ab	4.15 ± 0.51ab	131 ± 0.24ab	53.9 ± 5.38ab
Mean	7.51 ± 1.24	7.51 ± 1.24	101 ± 41.2	24.5 ± 14.9 ***	16 ± 3.74	3.65 ± 1.03 ***	130 ±27.3	54 ± 13.6 ***
	Stems
Ctrl	2.99 ± 0.66a	2.99 ± 0.66a	30.2 ± 11.3a	23.4 ± 10.3a	69.3 ± 19.3a	4.04 ± 0.98a	51.5 ± 4.55a	30 ± 10.6a
nCeO2 25 nm	2.97 ± 0.37a	2.97 ± 0.37a	17.7 ± 3.65a	14.3 ± 5.11ab	31.4 ± 11.4a	3.15 ± 0.25a	47.0 ± 3.99a	29.5 ± 8.12a
nCeO2 50 nm	2.76 ± 0.61a	2.76 ± 0.61a	18.7 ± 1.89a	4.97 ± 1.86b	49.9 ± 15.8a	4.71 ± 0.83a	41.0 ± 11.3a	30.9 ± 17.3a
Mean	2.91± 0.5	2.91± 0.5	22.2 ± 8.53	14.2 ± 10.4*	51.1 ± 20.5	3.94 ± 0.92 ***	46.5 ± 7.85	31.8 ± 10.3 *
	Leaves
Ctrl	3.56 ± 0.52a	3.56 ± 0.52a	34.5 ± 4.60a	42.5 ± 4.52a	47.3 ± 16.9a	9.96 ± 0.80a	26.8 ± 0.40a	100 ± 26.2a
nCeO2 25 nm	4.47 ± 0.48a	4.47 ± 0.48a	36.1 ± 3.54a	28.9 ± 5.26a	26.8 ± 9.11a	10.7 ± 0.74a	29.2 ± 6.29a	96.5 ± 22.5a
nCeO2 50 nm	4.13 ± 0.57a	4.13 ± 0.57a	34.0 ± 2.76a	36.0 ± 6.49a	37.6 ± 8.72a	13.5 ± 4.44a	26.0 ± 5.23a	70.0 ± 22.2a
Mean	4.06 ± 0.6	4.06 ± 0.6	34.9 ± 3.35	35.8 ± 7.29ns	37.3 ±13.8	11.4 ±2.98 ***	27.3 ± 4.34	88.4 ± 20.9 ***