Question: 120: Which of the following statement is not correct?
(1) Rhizome is a condensed form of stem
(2) The apical bud in rhizome always remains above the ground
(3) The rhizome is aerial with no distinct nodes and internodes
(4) The rhizome is thick, prostrate and branched
Answer: Option (3)
Explanation:
A rhizome is a modified stem that grows horizontally below the surface of the soil.
It is a condensed form of stem and shows typical stem characters such as nodes, internodes, scale leaves, and buds.
The rhizome is thick, prostrate, and branched, as seen in plants like ginger and turmeric.
It bears an apical bud and axillary buds, which can give rise to aerial shoots that emerge above the ground.
Therefore, statements describing rhizome as a stem with nodes, internodes,
and underground growth are correct.
The statement that the rhizome is aerial with no distinct nodes and internodes is incorrect.
Hence, the correct answer is option (3).