Table 5.
Cadmium extraction levels (g·ha−1) for each maize plant organ for: (a) different environments; (b) CdCl2 rates; and (c) maize cultivars.
| Parameter Group | Parameters | Cadmium Extraction (g·ha−1) | |||
|---|---|---|---|---|---|
| Grain | Straw | Root | Total | ||
| a | La Serena | 0.45 a C | 18.87 b A | 4.45 a B | 23.77 a |
| Los Tilos | 0.08 c B | 23.93 a A | 0.24 b B | 24.25 a | |
| Chillán | 0.12 bc B | 18.54 b A | 0.61 b B | 19.27 b | |
| Control | 0.06 b C | 2.24 c A | 0.57 c B | 2.87 c | |
| b | 1 mg·kg−1 | 0.19 a C | 16.01 b A | 1.53 b B | 17.72 b |
| 2 mg·kg−1 | 0.25 a C | 32.14 a C | 2.06 a B | 34.44 a | |
| Syngenta | 0.16 a C | 14.80 b A | 1.43 a B | 16.39 b | |
| c | Pionner | 0.19 a C | 15.89 b A | 1.07 a B | 17.15 b |
| Dekalb | 0.14 a C | 19.70 a A | 1.66 a B | 21.50 a | |
Different lowercase letters (a, b, c) in each column indicate significant differences compared with: (a) environments; (b) Cd rates; and (c) maize cultivars according to Tukey’s test (p < 0.05). Different uppercase letters (A, B, C) between columns indicate significant differences between structures of the same plant for each: (a) environment; (b) Cd rate; and (c) maize cultivar according to Tukey’s test (p < 0.05).