4.3.5. Potassium Content

Dry samples of plant root and shoot (1mg) were dissolvedin 9mL of distilled water. Flame photometer was used for the determination of potassium content, as reported previously [69].

### 4.3.6. Calcium Content

Dry samples of plant root and shoot (1 mg) were added to 9 mL of distilled water. Flame photometer method was used for the determination of the calcium content [69].
