Micro element: These elements are required in trace amount (< 0.5mM) for plant growth and development. Microelements that are usually used in plant tissue culturing are: Manganese, Iodine, Copper, Cobalt, Boron, Molybdenum, Iron and Zinc.
Macro element: These elements are present in greater amount (> 0.5mM) for plant growth and development. These element comprises at
least 0.1% of dry weight of plants. Macro elements that are usually used in plant tissue culturing: Nitrogen, Phosphorous, Potassium,
Magnesium, Calcium and Sulphur.
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