Cadmium Toxicity Affects Phytochemicals and Nutrient Elements Composition of Lettuce (Lactuca sativa L.)

Table 1

Effect of Cd concentrations on nutrient element composition in lettuces.

Treatment	Macroelements (%/DW)					Microelements (µg/g DW)
	N	P	K	Ca	Mg	Fe	Mn	Cu	Zn	Cd
Variety
BBL	2.59b	0.34b	5.74b	0.97b	0.52a	92.82b	60.60b	7.03b	36.53b	77.18b
Italian 167	2.99a	0.43a	6.41a	1.17a	0.53a	137.73a	75.61a	10.26a	44.75a	101.48a
Significance					ns
Cadmium concentration (mg/L)
0	4.00a	0.55a	7.95a	1.53a	0.56a	152.73a	110.04a	12.68a	52.54a	0.01e
3	3.61a	0.49b	7.12b	1.28b	0.55a	104.76b	88.21b	9.78b	45.66b	74.92d
6	3.01b	0.42c	5.20c	1.05c	0.42b	86.12c	63.00c	5.53c	41.92c	95.95c
9	2.18c	0.30d	4.62d	0.90c	0.31c	59.04d	47.08d	2.66d	34.87d	120.50b
12	1.16d	0.17e	3.48e	0.59d	0.27d	29.69e	24.19e	0.57e	27.25e	152.97a
Significance
Interaction
Variety Cd	ns	ns	ns	ns	ns			ns		ns

Significant at 5%; highly significant at 1%; ns = not significant. Values within a column with the same letters are not significantly different (), means separation by LSD, 5%.