Table 6 Pearson’s correlation coefficients of molecular weight distribution fractions (detected by DAD at 280 nm) with humates’ biological activity
> 100 kg∙mol–1 | 70–100 kg∙mol–1 | 50–70 kg∙mol–1 | 30–50 kg∙mol–1 | 15–30 kg∙mol–1 | 0–15 kg∙mol–1 | |
|---|---|---|---|---|---|---|
K[BW] Root division | -0.036 | 0.137 | -0.200 | -0.221 | -0.118 | 0.100 |
Growth increment | -0.514 | 0.614 | 0.538 | 0.311 | -0.199 | -0.654 |
Mass increment | -0.371 | 0.420 | 0.502 | 0.206 | -0.195 | -0.491 |
Sugar content | -0.752 | -0.173 | 0.422 | 0.713 | 0.628 | -0.203 |
Protein content | -0.279 | -0.082 | 0.271 | 0.353 | 0.230 | -0.145 |