Table 2 Elemental concentration (trace elements: Co, Cr, Cu, Fe, Mn, Ni, Zn) ranges and means in parentheses
| Plant part | N samples | Co | Cr | Cu | Fe | Mn | Ni | Zn |
|---|---|---|---|---|---|---|---|---|
| Flowers | 2 |
16–104 [60] |
14–17 [16] |
6.5–9.5 [8.0] |
15–24 [20] |
34–945 [490] |
2905–5560 [4230] |
20–100 [60] |
| Fruit capsule | 5 |
4.3–31 [13] |
2.3–17 [8.4] |
2.2–10 [5.9] |
8.0–30 [20] |
11–83 [35] |
1274–4001 [2660] |
9.0–22 [17] |
| Immature seeds | 2 |
23–89 [56] |
15–28 [22] |
8.5–13 [11] |
30–43 [36] |
58–64 [61] |
754–1421 [1090] |
26–34 [30] |
| Ripe seeds | 1 | 3 | 114 | 14 | 131 | 187 | 17,570 | 182 |
| Young leaves | 12 |
3.0–198 [46] |
1.3–66 [16] |
0.1–17 [6.7] |
9–241 [63] |
21–182 [93] |
1105–10,750 [5388] |
10–244 [52] |
| Old leaves | 21 |
12–75 [31] |
1.2–13 [6.9] |
0.9–11 [4.7] |
22–90 [46] |
95–461 [170] |
11,470–25,060 [16,490] |
45–249 [85] |
| Bark | 7 |
4.4–28 [14] |
2.3–13 [6.3] |
1.0–10 [4.5] |
22–429 [85] |
33–89 [66] |
842–6820 [5260] |
18–83 [69] |
| Phloem tissue | 3 |
12–49 [27] |
6.3–15 [10] |
1.3–6.6 [4.1] |
37–564 [220] |
62–126 [103] |
1390–9340 [5570] |
28–191 [100] |
| Twigs | 14 |
1.9–36 [16] |
2.4–42 [8.0] |
0.5–33 [6.2] |
4.0–40 [17] |
5.0–259 [72] |
99–12,300 [4330] |
5.1–103 [49] |
| Wood | 7 |
0.8–15 [5.0] |
1.9–4.7 [3.4] |
0.7–6.3 [2.5] |
3.7–10 [5.7] |
5.9–18 [11] |
443–1170 [862] |
4.8–14 [10] |
| Roots | 1 | 26 | 6.5 | 0.7 | 512 | 164 | 1272 | 24 |