Potato which we eat is an underground part of a plant, however it can not be considered as root. Justify the given statement.

Monjur Alahi

Potato which we eat is an underground part of a plant, however it can not be considered as root. Justify the given statement.


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Salim Ahmed Kawsar

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1. Potato is a stem tuber. 

2. It is an underground stem, modified for storage of food material. 

3. Special underground branches of stem at their tips becomes swollen due to storage of food which is mostly starch. 

4. Stem tuber shows distinct nodes, but not intemodes hence it is classified as stem. 

5. At nodal part, it shows scale leaves with axillary buds, which are commonly called as ‘eyes’.

6. Under favourable conditions, ‘eyes’ can produce aerial shoots. 

7. Potato tuber can be propagated vegetatively. 

[Note: In stem tuber, internodes are present but they are not very distinct.]

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