Question

The length of the different internodes in the culm of sugarcane is variable because of ---------------.

• A. Size of leaf lamina at the node below each internode
• B. Intercalary meristem
• C. Shoot apical meristem
• D. Position of axillary buds

Answer 1

The correct option is B Intercalary meristem

• Internode is the length of the stem between two nodes.
• The variable length of internodes in the culm of sugarcane is mainly due to the presence of intercalary meristem (residual apical meristem).
• An intercalary meristem is the meristem present at the base of the internodes or at the base of nodes of stem or leaf. It helps in the elongation and growth of the plants at the nodes and internodes (stems and leaves) which enables longitudinal growth of the stem and leaves ( as in grasses).
• So, the correct option is B.