Lateral meristem is the specialised tissue responsible for increasing stem girth. It is located along the circumference of stems and roots, where actively dividing cells continuously produce new tissues, increasing thickness and forming annual growth rings.
Which specialised tissue is responsible for the girth of the stem and where is it located?
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The lateral meristem is responsible for the increase in girth or thickness of stems and roots. It is located along the circumference of these plant parts in the form of a ring of actively dividing cells. Continuous cell division by lateral meristem produces new tissues inward and outward, increasing stem diameter and forming annual growth rings in woody plants.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
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