Question

When is a mineral considered toxic to plant tissues?

Answer 1

Minerals:

1. The minerals are inorganic elements that a plant requires for its growth and development.
2. The uptake of minerals from the roots of plants can be active or passive transport.

Examples of trace minerals are:

1. Selenium: Acts as antioxidant.
2. Copper: Required for iron metabolism.
3. Manganese: Part of enzymes.
4. Fluorine: Required for formation of bones, teeth.

Mineral is considered toxic to plant tissues:

If mineral ion concentration in tissues decreases the dry weight of plant tissue by approximately 10% then the mineral is toxic for that particular plant tissue.