Question

Which of the following is a subaerial stem modification with long internode?

• A. Rhizome
• B. Offset
• C. Runner
• D. Sucker

Answer 1

The correct option is C Runner

Rhizome: It is an underground stem modification. The rhizome is fleshy and horizontally stem found below in soil. Small nodes and internodes are found which are covered by scaly leaves. Ex- Ginger, Turn=meric, Banana.

Offset: It is a sub-aerial modification. A lateral branch with short internode and each node bearing a rosette of leaves and tuft of roots at the base. Ex- Pistia and Eichorrnia.

Runner: It is a sub-aerial stem modification. When stem grows and spreads on the surface of the soil. Roots are developed at the lower side and leaves from the upper side from the node and the internodes are long. Ex- Oxalis.

Sucker: It is a sub-aerial modification. In it, the main stem grows in the soil horizontally and branches develop obliquely from nodes above the soil. Ex- Mint, Pineapple.

So, the correct answer is 'Option C- Runner'.