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Question

Which of the following is/are plant growth inhibitor(s)?

A
Auxin
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B
Abscisic acid
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C
Cytokinin
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D
Ethylene
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Solution

The correct options are
B Abscisic acid
D Ethylene
Abscisic acid and ethylene are inhibitor phytohormones whereas auxins, cytokinins and gibberellins are plant growth promoters.

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