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Ethylene

Phytohormone ...

Question

Phytohormone which induces triple response is

A

IAA

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B

ABA

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C

{G A}_{3}

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D

C_{2} H_{4}

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Solution

The correct option is D $C_{2} H_{4}$
Ethylene is a phytohormone which induces triple response in plant. During mechanical stress on the stem, ethylene is produced. It induces seedling to produce triple response and stem grows sidewise. This triple response allows stem to go around an object above.
Thus, the correct answer is option D.

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