Which of the plant growth regulator induces parthenocarpy in tomatoes?

Auxin

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Gibberellin

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Cytokinin

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Ethylene

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Solution

The correct option is A Auxin
Auxin is a plant growth hormone needed for plant growth and development. When auxin is bound to a receptor (eg: auxin-binding proteins), it activates stimuli pathways and then activates gene expression. Mostly 2,4-D is responsible for inducing parthenocarpy in tomatoes.
So, the correct answer is 'Auxin'.

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