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Question

Fruit drop is prevented by spraying

A
Auxin
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B
Ethylene
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C
Gibberellins
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D
Cytokinins
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Solution

The correct option is A Auxin
Fruit drop is prevented by spraying auxin. When auxin is applied to fruits, the fruit drop is greatly suppressed. Also, it is observed that the intact fruit does not fall off because it synthesizes auxin.
Thus, the correct answer is option A.

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