**3.3 Zn(II) and Cu(II) bioaccumulation correlated with physiological effects by Pearson stadistical method**


Pearson coefficients (r) showed, for Zn(II), a significant negative correlation for shoot and root dry weight, whereas shoot malondialdehyde (MDA) and proline

#### **Table 1.**

*BAI (bioavailability), AI (accumulation), TI (translocation), and BI (bioaccumulation) for Zn(II) and Cu(II) systems.*

*Phytoextraction of Zn(II) and Cu(II) by* Canna indica*: Related Physiological Effects DOI: http://dx.doi.org/10.5772/intechopen.102450*


**Table 2.**

*Zn(II) and Cu(II) bioaccumulation correlated with physiological effects by Pearson stastical method.*

content and root-relative conductivity showed the opposite. For Cu(II), negative significant correlations were found for shoot dry weight, chlorophyll, and protein content while positive correlations were found for shoot proline content and rootrelative conductivity. Positive correlations show an increase of both variables, whereas a negative correlation indicates a decrease in the second variable when the first variable increases (**Table 2**).
