Table 4.
The correlation between grain yield (GY) and concentrations of the analyzed elements in maize with different kernel colors under different fertilizer treatments [biofertilizer (BF); organic fertilizer (OF); urea; control (Con; no fertilizer)].
| Element | Mg | Ca | >Fe | Mn | Zn | Cu | S | |
|---|---|---|---|---|---|---|---|---|
| Genotype | ||||||||
| White | GY | 0.08 | −0.23 | 0.15 | 0.07 | 0.14 | 0.14 | −0.38* |
| Yellow | 0.56* | −0.1 | 0.26 | 0.18 | −0.22 | 0.57* | −0.85* | |
| Red | 0.53* | 0.16 | 0.44* | 0.34* | 0.53* | 0.66* | 0.09 | |
| Fertilizer treatment | ||||||||
| BF | GY | 0.05 | 0.14 | −0.04 | 0.69* | −0.24 | 0.49* | 0.55* |
| OF | −0.01 | −0.39* | 0.13 | 0.19 | −0.16 | 0.47* | 0.29 | |
| Urea | 0.08 | 0.34 | 0.57* | 0.48* | −0.02 | 0.19 | 0.36* | |
| Con | 0.1 | 0.29 | 0.69* | 0.3 | −0.17 | 0.44* | 0.15 | |
*0.05, significance level.