Question

Storage sprouting of potato can be prevented by
A. Maleic hydrazide
B. Cytokinins
C. Gibberellins
D. IAA

Answer 1

A chemical sprout inhibitor which is directly applied to the growing potato crop in order to prevent the sprouting. Maleic hydrazide and it is a chemical sprout inhibitor which is directly applied to the growing potato crop and it translocates to the developing tuber and there it inhibits the cell division due to which there is no sprouting.

Complete answer:
If we look at options now, let start from the last option which is IAA i.e., Indole-3-Acetic-Acid. It is a plant hormone of Auxin class and auxin is a growth regulator which supports the root and shoot formation but in the question that hormone is asked which can prevent sprouting and therefore, this option cannot be the correct one.
Moving to option C which is gibberellins, it is also a growth regulatory which promotes the growth of shoot and root and therefore it cannot prevent sprouting in potato but instead of it, it will promote this growth. Therefore, this cannot be the correct option and hence it gets eliminated.
Moving to option B which is Cytokinins, it is also a growth hormone which promotes the division of cells. This also cannot prevent sprouting in potatoes but instead of it, it will promote this growth. Therefore, this cannot be the correct option and hence it gets eliminated.
Last option is A which is Maleic hydrazide. This is the correct option since as per the explanation above it is a chemical sprout inhibitor which is directly applied to the growing potato crop in order to prevent the sprouting and it inhibits the cell division in them due to which there will be no sprouting and that makes it the correct option.

Thus, the correct answer is option A which is Maleic hydrazide.

Note: Maleic hydrazide translocates to the developing tuber and there it inhibits the cell division due to which there is no sprouting. It is a chemical sprout inhibitor which is directly applied to the growing potato crop and that is why the correct option is A and all the other options given are growth hormones which will promote the sprouting.