Table 2.

Micro element contents of different parts and layers of leeks (mg/kg)

Sample	Fe	Zn	Cu	Mn
Root of leek	22.71 ± 3.25 a	5.85 ± 0.406 a	2.99 ± 0.507 a	11.99 ± 1.59 a
Onion part of leek	0.506 ± 0.038 b	2.16 ± 0.180 b	0.907 ± 0.078 b	0.823 ± 0.041 b
Leaf top of leek	0.585 ± 0.084 b	1.53 ± 0.095 c	0.700 ± 0.022 b	0.829 ± 0.126 b
Leaf of leek	0.592 ± 0.046 b	1.78 ± 0.141 bc	0.804 ± 0.138 b	1.30 ± 0.223 b
Sample	Fe	Zn	Cu	Mn
1. Layer of leek	0.903 ± 0.065 c	3.01 ± 0.366 a	0.418 ± 0.108 ab	0.527 ± 0.080 b
2. Layer of leek	2.54 ± 0.159 b	3.02 ± 0.176 a	0.373 ± 0.096 b	0.601 ± 0.050 b
3. Layer of leek	3.53 ± 1.07 b	2.59 ± 0.336 b	0.478 ± 0.133 ab	0.610 ± 0.035 b
4. Layer of leek	3.29 ± 0.421 b	1.96 ± 0.097 c	0.479 ± 0.008 ab	0.608 ± 0.057 b
5. Layer of leek	3.37 ± 0.239 b	2.70 ± 0.171 ab	0.525 ± 0.021 a	0.967 ± 0.083 a
6. Layer of leek	8.25 ± 0.846 a	0.269 ± 0.025 d	0.157 ± 0.020 c	0.118 ± 0.018 c
7. Layer of leek	8.27 ± 1.71 a	0.234 ± 0.050 d	0.143 ± 0.011 c	0.104 ± 0.021 c

p < 0.01