Primary growth is the process by which a plant increases in length, allowing roots and shoots to extend. It occurs through the activity of apical meristems located at the tips of roots and shoots.
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Primary growth allows plants to grow taller and deeper, enabling them to access light and water.
It is facilitated by cells in the apical meristems rapidly dividing and differentiating.
Primary growth results in the formation of primary tissues such as epidermis, cortex, and primary vascular tissues.
The regions experiencing primary growth are known as zones of cell division, elongation, and differentiation.
In stems, primary growth leads to the development of structures like leaves and flowers.