Role of meristem in plant growth

1. Elongation: The plant grows in length by division of apical dividing tissue. It increases the physical growth and height of the plant.
2. Increase in diameter: Lateral dividers increase the diameter of dicotyledonous plants by tissue division. Dicotyledonous plants are thicker and gain mechanical strength.
3. Organ Growth: Dividing tissue leads to organ growth. As a result, the number of branches, leaves, flowers and fruits of the plant increases.
4. Wound healing: When a wound occurs in any part of the plant, dividing tissue divides and fills the wound.
5. Formation of permanent tissue: Permanent tissue is formed from dividing tissue. Dividing tissue loses the ability to divide and becomes permanent tissue.
6. Metabolism: Divided tissues carry out metabolism in the plant body. Plants with a higher amount of dividing tissue also have a higher metabolic rate. As a result, plant growth is accelerated.
7. Increase in crop yield: In crop plants, dividing tissue divides to produce flowers and fruits. This tissue divides and enlarges the fruit and seed size. Due to this the crop yield increases.

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