Question

Which one is found only in aquatic plant

• A. Runner
• B. Stolon
• C. Tuber
• D. Offset

Answer 1

The correct option is D Offset

the meaning of the following terms are:

-Runner: When stem grows and spread on the surface of the soil. The roots develop at the lower side and leaves from the upper side of the node. Ex-Oxalisand Doob grass.

-Stolon: In stolon the branches are small and the Stem is condensed and grows in all directions. After growing for some distance their apical region comes out from the soil. Ex- Fragaria.

-Tuber: In this underground stem modification the tips of underground branches become swollen in the soil. Eyes are found on them which are axillary buds are covered with scaly leaves. Ex- Potato.

-Offset: In this stem modification, lateral branch with short internode and each node bearing a rosette of leaves and a tuft of roots at the base. It is found only in aquatic plants. Ex- Pistia and Eichorrnia.

So, the correct answer is 'Option D- Offset'.